U.S. Patent, Patent Application and Patent Search

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<li> <a href="/company/yahoo">Yahoo</a> </li> <li> <a href="/company/zynga">Zynga</a> </li> </ul> </div> </div> <div id="classifications" class="wrapper"> <div class="title-wrapper"> <h1 id="front-page-header" class="heading-1"> Browse Patents by U.S. Classification </h1> </div> <ul class="zebra list-no-styles has-no-padding has-negative-sides-30"> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/2">Apparel (Class 2)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/4">Baths, closets, sinks, and spittoons (Class 4)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/5">Beds (Class 5)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/7">Compound tools (Class 7)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/8">Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers (Class 8)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/12">Boot and shoe making (Class 12)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/14">Bridges (Class 14)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/15">Brushing, scrubbing, and general cleaning (Class 15)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/16">Miscellaneous hardware (e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.) (Class 16)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/19">Textiles: fiber preparation (Class 19)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/23">Chemistry: physical processes (Class 23)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/24">Buckles, buttons, clasps, etc. (Class 24)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/26">Textiles: cloth finishing (Class 26)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/27">Undertaking (Class 27)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/28">Textiles: manufacturing (Class 28)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/29">Metal working (Class 29)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/30">Cutlery (Class 30)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/33">Geometrical instruments (Class 33)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/34">Drying and gas or vapor contact with solids (Class 34)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/36">Boots, shoes, and leggings (Class 36)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/37">Excavating (Class 37)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/38">Textiles: ironing or smoothing (Class 38)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/40">Card, picture, or sign exhibiting (Class 40)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/42">Firearms (Class 42)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/43">Fishing, trapping, and vermin destroying (Class 43)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/44">Fuel and related compositions (Class 44)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/47">Plant husbandry (Class 47)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/48">Gas: heating and illuminating (Class 48)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/49">Movable or removable closures (Class 49)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/51">Abrasive tool making process, material, or composition (Class 51)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/52">Static structures (e.g., buildings) (Class 52)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/53">Package making (Class 53)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/54">Harness for working animal (Class 54)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/55">Gas separation (Class 55)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/56">Harvesters (Class 56)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/57">Textiles: spinning, twisting, and twining (Class 57)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/59">Chain, staple, and horseshoe making (Class 59)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/60">Power plants (Class 60)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/62">Refrigeration (Class 62)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/63">Jewelry (Class 63)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/65">Glass manufacturing (Class 65)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/66">Textiles: knitting (Class 66)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/68">Textiles: fluid treating apparatus (Class 68)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/69">Leather manufactures (Class 69)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/70">Locks (Class 70)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/71">Chemistry: fertilizers (Class 71)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/72">Metal deforming (Class 72)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/73">Measuring and testing (Class 73)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/74">Machine element or mechanism (Class 74)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/75">Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures (Class 75)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/76">Metal tools and implements, making (Class 76)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/79">Button making (Class 79)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/81">Tools (Class 81)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/82">Turning (Class 82)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/83">Cutting (Class 83)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/84">Music (Class 84)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/86">Ammunition and explosive-charge making (Class 86)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/87">Textiles: braiding, netting, and lace making (Class 87)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/89">Ordnance (Class 89)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/91">Motors: expansible chamber type (Class 91)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/92">Expansible chamber devices (Class 92)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/95">Gas separation: processes (Class 95)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/96">Gas separation: apparatus (Class 96)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/99">Foods and beverages: apparatus (Class 99)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/100">Presses (Class 100)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/101">Printing (Class 101)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/102">Ammunition and explosives (Class 102)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/104">Railways (Class 104)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/105">Railway rolling stock (Class 105)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/106">Compositions: coating or plastic (Class 106)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/108">Horizontally supported planar surfaces (Class 108)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/109">Safes, bank protection, or a related device (Class 109)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/110">Furnaces (Class 110)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/111">Planting (Class 111)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/112">Sewing (Class 112)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/114">Ships (Class 114)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/116">Signals and indicators (Class 116)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/117">Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor (Class 117)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/118">Coating apparatus (Class 118)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/119">Animal husbandry (Class 119)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/122">Liquid heaters and vaporizers (Class 122)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/123">Internal-combustion engines (Class 123)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/124">Mechanical guns and projectors (Class 124)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/125">Stone working (Class 125)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/126">Stoves and furnaces (Class 126)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/127">Sugar, starch, and carbohydrates (Class 127)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/128">Surgery (Class 128)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/131">Tobacco (Class 131)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/132">Toilet (Class 132)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/134">Cleaning and liquid contact with solids (Class 134)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/135">Tent, canopy, umbrella, or cane (Class 135)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/136">Batteries: thermoelectric and photoelectric (Class 136)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/137">Fluid handling (Class 137)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/138">Pipes and tubular conduits (Class 138)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/139">Textiles: weaving (Class 139)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/140">Wireworking (Class 140)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/141">Fluent material handling, with receiver or receiver coacting means (Class 141)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/142">Wood turning (Class 142)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/144">Woodworking (Class 144)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/147">Coopering (Class 147)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/148">Metal treatment (Class 148)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/149">Explosive and thermic compositions or charges (Class 149)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/150">Purses, wallets, and protective covers (Class 150)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/152">Resilient tires and wheels (Class 152)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/156">Adhesive bonding and miscellaneous chemical manufacture (Class 156)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/157">Wheelwright machines (Class 157)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/159">Concentrating evaporators (Class 159)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/160">Flexible or portable closure, partition, or panel (Class 160)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/162">Paper making and fiber liberation (Class 162)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/163">Needle and pin making (Class 163)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/164">Metal founding (Class 164)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/165">Heat exchange (Class 165)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/166">Wells (Class 166)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/168">Farriery (Class 168)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/169">Fire extinguishers (Class 169)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/171">Unearthing plants or buried objects (Class 171)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/172">Earth working (Class 172)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/173">Tool driving or impacting (Class 173)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/174">Electricity: conductors and insulators (Class 174)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/175">Boring or penetrating the earth (Class 175)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/177">Weighing scales (Class 177)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/178">Telegraphy (Class 178)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/180">Motor vehicles (Class 180)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/181">Acoustics (Class 181)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/182">Fire escape, ladder, or scaffold (Class 182)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/184">Lubrication (Class 184)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/185">Motors: spring, weight, or animal powered (Class 185)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/186">Merchandising (Class 186)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/187">Elevator, industrial lift truck, or stationary lift for vehicle (Class 187)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/188">Brakes (Class 188)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/190">Trunks and hand-carried luggage (Class 190)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/191">Electricity: transmission to vehicles (Class 191)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/192">192 clutches and power-stop control (Class 192)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/193">Conveyors, chutes, skids, guides, and ways (Class 193)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/194">Check-actuated control mechanisms (Class 194)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/196">Mineral oils: apparatus (Class 196)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/198">Conveyors: power-driven (Class 198)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/199">Type casting (Class 199)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/200">Electricity: circuit makers and breakers (Class 200)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/201">Distillation: processes, thermolytic (Class 201)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/202">Distillation: apparatus (Class 202)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/203">Distillation: processes, separatory (Class 203)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/204">Chemistry: electrical and wave energy (Class 204)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/205">Electrolysis: processes, compositions used therein, and methods of preparing the compositions (Class 205)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/206">Special receptacle or package (Class 206)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/208">Mineral oils: processes and products (Class 208)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/209">Classifying, separating, and assorting solids (Class 209)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/210">Liquid purification or separation (Class 210)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/211">Supports: racks (Class 211)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/212">Traversing hoists (Class 212)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/213">Railway draft appliances (Class 213)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/215">Bottles and jars (Class 215)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/216">Etching a substrate: processes (Class 216)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/217">Wooden receptacles (Class 217)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/218">High-voltage switches with arc preventing or extinguishing devices (Class 218)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/219">Electric heating (Class 219)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/220">Receptacles (Class 220)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/221">Article dispensing (Class 221)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/222">Dispensing (Class 222)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/223">Apparel apparatus (Class 223)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/224">Package and article carriers (Class 224)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/225">Severing by tearing or breaking (Class 225)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/226">Advancing material of indeterminate length (Class 226)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/227">Elongated-member-driving apparatus (Class 227)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/228">Metal fusion bonding (Class 228)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/229">Envelopes, wrappers, and paperboard boxes (Class 229)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/231">Whips and whip apparatus (Class 231)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/232">Deposit and collection receptacles (Class 232)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/234">Selective cutting (e.g., punching) (Class 234)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/235">Registers (Class 235)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/236">Automatic temperature and humidity regulation (Class 236)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/237">Heating systems (Class 237)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/238">Railways: surface track (Class 238)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/239">Fluid sprinkling, spraying, and diffusing (Class 239)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/241">Solid material comminution or disintegration (Class 241)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/242">Winding, tensioning, or guiding (Class 242)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/244">Aeronautics and astronautics (Class 244)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/245">Wire fabrics and structure (Class 245)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/246">Railway switches and signals (Class 246)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/248">Supports (Class 248)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/249">Static molds (Class 249)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/250">Radiant energy (Class 250)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/251">Valves and valve actuation (Class 251)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/252">Compositions (Class 252)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/254">Implements or apparatus for applying pushing or pulling force (Class 254)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/256">Fences (Class 256)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/257">Active solid-state devices (e.g., transistors, solid-state diodes) (Class 257)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/258">Railway mail delivery (Class 258)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/260">Chemistry of carbon compounds (Class 260)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/261">Gas and liquid contact apparatus (Class 261)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/264">Plastic and nonmetallic article shaping or treating: processes (Class 264)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/266">Metallurgical apparatus (Class 266)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/267">Spring devices (Class 267)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/269">Work holders (Class 269)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/270">Sheet-material associating (Class 270)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/271">Sheet feeding or delivering (Class 271)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/273">Amusement devices: games (Class 273)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/276">Typesetting (Class 276)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/277">Seal for a joint or juncture (Class 277)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/278">Land vehicles: animal draft appliances (Class 278)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/279">Chucks or sockets (Class 279)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/280">Land vehicles (Class 280)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/281">Books, strips, and leaves (Class 281)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/283">Printed matter (Class 283)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/285">Pipe joints or couplings (Class 285)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/289">Knots and knot tying (Class 289)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/290">Prime-mover dynamo plants (Class 290)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/291">Track sanders (Class 291)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/292">Closure fasteners (Class 292)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/293">Vehicle fenders (Class 293)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/294">Handling: hand and hoist-line implements (Class 294)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/295">Railway wheels and axles (Class 295)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/296">Land vehicles: bodies and tops (Class 296)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/297">Chairs and seats (Class 297)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/298">Land vehicles: dumping (Class 298)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/299">Mining or in situ disintegration of hard material (Class 299)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/300">Brush, broom, and mop making (Class 300)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/301">Land vehicles: wheels and axles (Class 301)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/303">Fluid-pressure and analogous brake systems (Class 303)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/305">Wheel substitutes for land vehicles (Class 305)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/307">Electrical transmission or interconnection systems (Class 307)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/310">Electrical generator or motor structure (Class 310)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/312">Supports: cabinet structure (Class 312)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/313">Electric lamp and discharge devices (Class 313)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/314">Electric lamp and discharge devices: consumable electrodes (Class 314)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/315">Electric lamp and discharge devices: systems (Class 315)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/318">Electricity: motive power systems (Class 318)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/320">Electricity: battery or capacitor charging or discharging (Class 320)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/322">Electricity: single generator systems (Class 322)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/323">Electricity: power supply or regulation systems (Class 323)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/324">Electricity: measuring and testing (Class 324)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/326">Electronic digital logic circuitry (Class 326)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/327">Miscellaneous active electrical nonlinear devices, circuits, and systems (Class 327)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/329">Demodulators (Class 329)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/330">Amplifiers (Class 330)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/331">Oscillators (Class 331)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/332">Modulators (Class 332)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/333">Wave transmission lines and networks (Class 333)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/334">Tuners (Class 334)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/335">Electricity: magnetically operated switches, magnets, and electromagnets (Class 335)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/336">Inductor devices (Class 336)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/337">Electricity: electrothermally or thermally actuated switches (Class 337)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/338">Electrical resistors (Class 338)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/340">Communications: electrical (Class 340)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/341">Coded data generation or conversion (Class 341)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/342">Communications: directive radio wave systems and devices (e.g., radar, radio navigation) (Class 342)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/343">Communications: radio wave antennas (Class 343)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/345">Computer graphics processing and selective visual display systems (Class 345)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/346">Recorders (Class 346)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/347">Incremental printing of symbolic information (Class 347)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/348">Television (Class 348)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/349">Liquid crystal cells, elements and systems (Class 349)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/351">Optics: eye examining, vision testing and correcting (Class 351)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/352">Optics: motion pictures (Class 352)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/353">Optics: image projectors (Class 353)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/355">Photocopying (Class 355)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/356">Optics: measuring and testing (Class 356)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/358">Facsimile and static presentation processing (Class 358)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/359">Optical: systems and elements (Class 359)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/360">Dynamic magnetic information storage or retrieval (Class 360)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/361">Electricity: electrical systems and devices (Class 361)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/362">Illumination (Class 362)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/363">Electric power conversion systems (Class 363)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/365">Static information storage and retrieval (Class 365)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/366">Agitating (Class 366)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/367">Communications, electrical: acoustic wave systems and devices (Class 367)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/368">Horology: time measuring systems or devices (Class 368)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/369">Dynamic information storage or retrieval (Class 369)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/370">Multiplex communications (Class 370)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/372">Coherent light generators (Class 372)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/373">Industrial electric heating furnaces (Class 373)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/374">Thermal measuring and testing (Class 374)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/375">Pulse or digital communications (Class 375)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/376">Induced nuclear reactions: processes, systems, and elements (Class 376)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/377">Electrical pulse counters, pulse dividers, or shift registers: circuits and systems (Class 377)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/378">X-ray or gamma ray systems or devices (Class 378)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/379">Telephonic communications (Class 379)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/380">Cryptography (Class 380)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/381">Electrical audio signal processing systems and devices (Class 381)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/382">Image analysis (Class 382)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/383">Flexible bags (Class 383)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/384">Bearings (Class 384)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/385">Optical waveguides (Class 385)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/386">Motion video signal processing for recording or reproducing (Class 386)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/388">Electricity: motor control systems (Class 388)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/392">Electric resistance heating devices (Class 392)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/396">Photography (Class 396)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/398">Optical communications (Class 398)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/399">Electrophotography (Class 399)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/400">Typewriting machines (Class 400)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/401">Coating implements with material supply (Class 401)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/402">Binder device releasably engaging aperture or notch of sheet (Class 402)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/403">Joints and connections (Class 403)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/404">Road structure, process, or apparatus (Class 404)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/405">Hydraulic and earth engineering (Class 405)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/406">Conveyors: fluid current (Class 406)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/407">Cutters, for shaping (Class 407)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/408">Cutting by use of rotating axially moving tool (Class 408)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/409">Gear cutting, milling, or planing (Class 409)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/410">Freight accommodation on freight carrier (Class 410)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/411">Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener (Class 411)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/412">Bookbinding: process and apparatus (Class 412)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/413">Sheet metal container making (Class 413)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/414">Material or article handling (Class 414)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/415">Rotary kinetic fluid motors or pumps (Class 415)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/416">Fluid reaction surfaces (i.e., impellers) (Class 416)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/417">Pumps (Class 417)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/418">Rotary expansible chamber devices (Class 418)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/419">Powder metallurgy processes (Class 419)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/420">Alloys or metallic compositions (Class 420)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/422">Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing (Class 422)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/423">Chemistry of inorganic compounds (Class 423)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/424">Drug, bio-affecting and body treating compositions (Class 424)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/425">Plastic article or earthenware shaping or treating: apparatus (Class 425)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/426">Food or edible material: processes, compositions, and products (Class 426)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/427">Coating processes (Class 427)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/428">Stock material or miscellaneous articles (Class 428)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/429">Chemistry: electrical current producing apparatus, product, and process (Class 429)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/430">Radiation imagery chemistry: process, composition, or product thereof (Class 430)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/431">Combustion (Class 431)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/432">Heating (Class 432)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/433">Dentistry (Class 433)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/434">Education and demonstration (Class 434)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/435">Chemistry: molecular biology and microbiology (Class 435)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/436">Chemistry: analytical and immunological testing (Class 436)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/438">Semiconductor device manufacturing: process (Class 438)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/439">Electrical connectors (Class 439)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/440">Marine propulsion (Class 440)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/441">Buoys, rafts, and aquatic devices (Class 441)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/442">Fabric (woven, knitted, or nonwoven textile or cloth, etc.) (Class 442)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/445">Electric lamp or space discharge component or device manufacturing (Class 445)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/446">Amusement devices: toys (Class 446)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/449">Bee culture (Class 449)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/450">Foundation garments (Class 450)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/451">Abrading (Class 451)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/452">Butchering (Class 452)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/453">Coin handling (Class 453)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/454">Ventilation (Class 454)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/455">Telecommunications (Class 455)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/460">Crop threshing or separating (Class 460)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/462">Books, strips, and leaves for manifolding (Class 462)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/463">Amusement devices: games (Class 463)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/464">Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts (Class 464)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/470">Threaded, headed fastener, or washer making: process and apparatus (Class 470)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/472">Amusement devices (Class 472)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/473">Games using tangible projectile (Class 473)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/474">Endless belt power transmission systems or components (Class 474)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/475">Planetary gear transmission systems or components (Class 475)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/476">Friction gear transmission systems or components (Class 476)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/477">Interrelated power delivery controls, including engine control (Class 477)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/482">Exercise devices (Class 482)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/483">Tool changing (Class 483)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/492">Roll or roller (Class 492)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/493">Manufacturing container or tube from paper; or other manufacturing from a sheet or web (Class 493)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/494">Imperforate bowl: centrifugal separators (Class 494)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/501">Compositions: ceramic (Class 501)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/502">Catalyst, solid sorbent, or support therefor: product or process of making (Class 502)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/503">Record receiver having plural interactive leaves or a colorless color former, method of use, or developer therefor (Class 503)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/504">Plant protecting and regulating compositions (Class 504)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/505">Superconductor technology: apparatus, material, process (Class 505)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/506">Combinatorial chemistry technology: method, library, apparatus (Class 506)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/507">Earth boring, well treating, and oil field chemistry (Class 507)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/508">Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions (Class 508)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/510">Cleaning compositions for solid surfaces, auxiliary compositions therefor, or processes of preparing the compositions (Class 510)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/512">Perfume compositions (Class 512)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/514">Drug, bio-affecting and body treating compositions (Class 514)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/516">Colloid systems and wetting agents; subcombinations thereof; processes of (Class 516)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/518">Chemistry: fischer-tropsch processes; or purification or recovery of products thereof (Class 518)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/520">Synthetic resins or natural rubbers -- part of the class 520 series (Class 520)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/521">Synthetic resins or natural rubbers -- part of the class 520 series (Class 521)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/522">Synthetic resins or natural rubbers -- part of the class 520 series (Class 522)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/523">Synthetic resins or natural rubbers -- part of the class 520 series (Class 523)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/524">Synthetic resins or natural rubbers -- part of the class 520 series (Class 524)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/525">Synthetic resins or natural rubbers -- part of the class 520 series (Class 525)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/526">Synthetic resins or natural rubbers -- part of the class 520 series (Class 526)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/527">Synthetic resins or natural rubbers -- part of the class 520 series (Class 527)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/528">Synthetic resins or natural rubbers -- part of the class 520 series (Class 528)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/530">Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof (Class 530)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/532">Organic compounds -- part of the class 532-570 series (Class 532)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/534">Organic compounds -- part of the class 532-570 series (Class 534)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/536">Organic compounds -- part of the class 532-570 series (Class 536)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/540">Organic compounds -- part of the class 532-570 series (Class 540)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/544">Organic compounds -- part of the class 532-570 series (Class 544)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/546">Organic compounds -- part of the class 532-570 series (Class 546)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/548">Organic compounds -- part of the class 532-570 series (Class 548)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/549">Organic compounds -- part of the class 532-570 series (Class 549)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/552">Organic compounds -- part of the class 532-570 series (Class 552)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/554">Organic compounds -- part of the class 532-570 series (Class 554)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/556">Organic compounds -- part of the class 532-570 series (Class 556)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/558">Organic compounds -- part of the class 532-570 series (Class 558)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/560">Organic compounds -- part of the class 532-570 series (Class 560)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/562">Organic compounds -- part of the class 532-570 series (Class 562)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/564">Organic compounds -- part of the class 532-570 series (Class 564)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/568">Organic compounds -- part of the class 532-570 series (Class 568)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/570">Organic compounds -- part of the class 532-570 series (Class 570)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/585">Chemistry of hydrocarbon compounds (Class 585)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/588">Hazardous or toxic waste destruction or containment (Class 588)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/600">Surgery (Class 600)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/601">Surgery: kinesitherapy (Class 601)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/602">Surgery: splint, brace, or bandage (Class 602)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/604">Surgery (Class 604)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/606">Surgery (Class 606)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/607">Surgery: light, thermal, and electrical application (Class 607)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/623">Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor (Class 623)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/700">Data processing: generic control systems or specific applications (Class 700)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/701">Data processing: vehicles, navigation, and relative location (Class 701)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/702">Data processing: measuring, calibrating, or testing (Class 702)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/703">Data processing: structural design, modeling, simulation, and emulation (Class 703)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/704">Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression (Class 704)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/705">Data processing: financial, business practice, management, or cost/price determination (Class 705)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/706">Data processing: artificial intelligence (Class 706)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/707">Data processing: database and file management or data structures (Class 707)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/708">Electrical computers: arithmetic processing and calculating (Class 708)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/709">Electrical computers and digital processing systems: multicomputer data transferring (Class 709)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/710">Electrical computers and digital data processing systems: input/output (Class 710)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/711">Electrical computers and digital processing systems: memory (Class 711)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/712">Electrical computers and digital processing systems: processing architectures and instruction processing (e.g., processors) (Class 712)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/713">Electrical computers and digital processing systems: support (Class 713)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/714">Error detection/correction and fault detection/recovery (Class 714)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/715">Data processing: presentation processing of document, operator interface processing, and screen saver display processing (Class 715)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/716">Computer-aided design and analysis of circuits and semiconductor masks (Class 716)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/717">Data processing: software development, installation, and management (Class 717)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/718">Electrical computers and digital processing systems: virtual machine task or process management or task management/control (Class 718)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/719">Electrical computers and digital processing systems: interprogram communication or interprocess communication (ipc) (Class 719)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/720">Dynamic optical information storage or retrieval (Class 720)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/725">Interactive video distribution systems (Class 725)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/726">Information security (Class 726)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/800">Multicellular living organisms and unmodified parts thereof and related processes (Class 800)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/850">Scanning-probe techniques or apparatus; applications of scanning-probe techniques, e.g., scanning probe microscopy [spm] (Class 850)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/901">Robots (Class 901)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/902">Electronic funds transfer (Class 902)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/903">Hybrid electric vehicles (hevs) (Class 903)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/930">Peptide or protein sequence (Class 930)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/968">Horology (Class 968)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/976">Nuclear technology (Class 976)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/977">Nanotechnology (Class 977)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/984">Musical instruments (Class 984)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/987">Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system (Class 987)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D01">Edible products (Class D01)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D02">Apparel and haberdashery (Class D02)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D03">Travel goods and personal belongings (Class D03)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D04">Brushware (Class D04)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D05">Textile or paper yard goods; sheet material (Class D05)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D06">Furnishings (Class D06)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D07">Equipment for preparing or serving food or drink not elsewhere specified (Class D07)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D08">Tools and hardware (Class D08)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D09">Packages and containers for goods (Class D09)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D10">Measuring, testing, or signalling instruments (Class D10)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D11">Jewelry, symbolic insignia, and ornaments (Class D11)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D12">Transportation (Class D12)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D13">Equipment for production, distribution, or transformation of energy (Class D13)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D14">Recording, communication, or information retrieval equipment (Class D14)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D15">Machines not elsewhere specified (Class D15)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D16">Photography and optical equipment (Class D16)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D17">Musical instruments (Class D17)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D18">Printing and office machinery (Class D18)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D19">Office supplies; artists and teachers materials (Class D19)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D20">Sales and advertising equipment (Class D20)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D21">Games, toys, and sports goods (Class D21)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D22">Arms, pyrotechnics, hunting and fishing equipment (Class D22)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D23">Environmental heating and cooling; fluid handling and sanitary equipment (Class D23)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D24">Medical and laboratory equipment (Class D24)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D25">Building units and construction elements (Class D25)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D26">Lighting (Class D26)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D27">Tobacco and smokers' supplies (Class D27)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D28">Cosmetic products and toilet articles (Class D28)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D29">Equipment for safety, protection, and rescue (Class D29)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D30">Animal husbandry (Class D30)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D32">Washing, cleaning, or drying machine (Class D32)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D34">Material or article handling equipment (Class D34)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/D99">Miscellaneous (Class D99)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/G9B">INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (Class G9B)</a> </li> <li class="has-padding-full-10 -zb"> <a href="/patents-by-us-classification/PLT">Plants (Class PLT)</a> </li> </ul> </div> </div> <div class="wrapper jcard has-padding-30 blocks"> <div 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