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PCT – The International Patent System

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style="text-align: left;"> <img class="logo--sub-brand" src="/export/system/modules/org.wipo.internet.rwd.templates/resources/images/logo__pct.png" alt="Logo of WIPO PCT, the international patent system"> <div class="main"> <h1>PCT – The International Patent System</h1> <p class="lead">The Patent Cooperation Treaty (PCT) assists applicants in seeking patent protection internationally for their inventions, helps patent offices with their patent granting decisions, and facilitates public access to a wealth of technical information relating to those inventions.</p> <p class="lead">By filing one international patent application under the PCT, applicants can simultaneously seek protection for an invention in a <a href="https://www-wipo-int.translate.goog/pct/en/pct_contracting_states.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">large number of countries</a>.</p> <div class="alert alert--warning"> <strong>Biotechnology Practice Area Update:&nbsp;<a 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Monthly.<strong></strong><strong></strong></li> </ul><a class="btn call-to-action" title="submit" href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://www3.wipo.int/newsletters/en/%23pct_newsletter">Sign up</a> | <a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://www3.wipo.int/newsletters/en/">All WIPO newsletters</a> </div> <div class="alert alert--warning"> <strong>Warning</strong> – <a href="https://www-wipo-int.translate.goog/pct/en/warning/pct_warning.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Requests for payment of fees</a> </div> </div> </div> <div class="content content--news line"> <div class="nav-expanding"> <h2 class="nav-expanding__header">PCT Resources</h2> <ul class="nav-expanding__list"> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCT/about-epct.xhtml?lang%3Den" target="_blank" rel="noopener">ePCT&nbsp;(WIPO IP Portal)</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/epct/tutorials.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">ePCT&nbsp;Video Tutorials for Applicants</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/guide/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self"><em>PCT Applicant's Guide</em></a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/forms/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Forms</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Treaty, Regulations and more</a></li> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCTExternal/pages/PctTimeline.xhtml" target="_blank" rel="noopener">Time Limit Calculator</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/fees/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Fees</a> (<a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://www3.wipo.int/epayweb/public/index.xhtml">WIPO Pay</a>)</li> </ul><a class="a-all btn btn-info accordion__toggle collapsed" href="https://www-wipo-int.translate.goog/pct/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB#accordion__collapse__c1" data-toggle="collapse">All resources</a> </div> <div class="accordion__group"> <div id="accordion__collapse__c1" class="accordion__body collapse in"> <div class="accordion__inner"> <div class="cols cols--three"> <div class="col"> <h3>Legal</h3> <ul class="dividers"> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Treaty, Regulations and Administrative Instructions </a><br> &nbsp;&nbsp;<a href="https://www-wipo-int.translate.goog/pct/en/texts/articles/atoc.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Treaty</a> <a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/texts/pct.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, PCT Treaty" border="0"></a><br> &nbsp;&nbsp;<a href="https://www-wipo-int.translate.goog/pct/en/texts/rules/rtoc1.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Regulations</a> <a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/texts/pct-regs.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, PCT regulations" border="0"></a><br> &nbsp;&nbsp;<a href="https://www-wipo-int.translate.goog/pct/en/texts/ai/ai_index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Administrative Instructions </a><a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/texts/ai.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, PCT regulations" border="0"></a><a href="https://www-wipo-int.translate.goog/pct/en/texts/ai/ai_index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"></a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/gdlines.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Guidelines for Authorities and Offices&nbsp;</a></li> <li>Legal Text Index (July 1, 2022) <a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/texts/legal-index.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, Legal text index" border="0"></a> <a href="https://www-wipo-int.translate.goog/pct/en/texts/legal_index_archive.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Archives</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/reservations/res_incomp.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Reservations and Incompatibilities</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/official_notices/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self"><em>Official Notices (PCT Gazette)</em> Collection </a></li> <li>Amendments to the Regulations (July 1, 2024) <a href="https://www-wipo-int.translate.goog/pct/en/docs/texts/2024changes.pptx?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img title="Amendments to the Regulations" src="/export/sites/www/shared/images/icon/new/ppt.gif" alt=""></a> <a href="https://www-wipo-int.translate.goog/pct/en/texts/rule_changes_archive.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Archives</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/faqs/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">FAQs</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/access/isa_ipea_agreements.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">ISA and IPEA Agreements</a></li> <li><a href="https://www-wipo-int.translate.goog/patentscope/search/en/structuredSearch.jsf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PATENTSCOPE</a><br> &nbsp; PATENTSCOPE <a href="https://www-wipo-int.translate.goog/patentscope/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Resources<br></a></li> </ul> </div> <div class="col"> <h3>States</h3> <ul class="dividers"> <li><a href="https://www-wipo-int.translate.goog/pct/en/pct_contracting_states.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">PCT Contracting States</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/paris_non_pct.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">States bound by the Paris Convention but not the PCT</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/paris_wto_pct.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">States Party to PCT/Paris/WTO</a>&nbsp;</li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/time_limits.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Time Limits for Entering National/Regional Phase</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/typesprotection.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Types of Protection</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/reg_des.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Regional Patents via the PCT</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/restoration.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Restoration of the Right of Priority </a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/waivers.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Waivers: Powers of Attorney </a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/preconversion-format.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Acceptance of documents in pre-conversion format</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/access_iper.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Access to IPER under Rule 94.1(c)</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/nat_sec.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">International applications and national security considerations</a></li> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCTExternal/pages/ClosedDates.xhtml" target="_blank" rel="noopener">IPO Closed Dates</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/unavailability.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Unavailability of Electronic Means of Communication</a></li> <li><a href="https://www-wipo-int.translate.goog/pressroom/en/global_ip_services_joint_statement.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB#pct" target="_self">Potentially applicable provisions regarding Ukraine and the Russian Federation</a></li> </ul> </div> <div class="col"> <h3>Filing</h3> <ul class="dividers"> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCT/about-epct.xhtml?lang%3Den">ePCT (WIPO IP Portal)</a></li> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pctcs.wipo.int/ePCTFiling/" target="_blank" rel="noopener">ePCT Business Continuity Service</a> (<a href="https://www-wipo-int.translate.goog/pct/en/faqs/epct-continuity-service-faq.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">FAQs</a>)</li> <li><a href="https://www-wipo-int.translate.goog/pct/en/filing/filing.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Direct filing with the IB</a></li> <li><a href="https://www-wipo-int.translate.goog/standards/en/sequence/faq.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Filing sequence listings under ST.26</a></li> <li><a href="https://www-wipo-int.translate.goog/pct-eservices/en/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">PCT eServices</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/guide/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self"><em>PCT Applicant's Guide</em></a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/filing/pct_pph.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT-Patent Prosecution Highway Pilot (PCT-PPH)</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/filing/cse.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Collaborative Search and Examination</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/pct_strategies/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Collection of PCT User Strategies</a></li> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCTExternal/pages/PctTimeline.xhtml" target="_blank" rel="noopener">PCT Time Limit Calculator</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/forms/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Forms</a><br> &nbsp;&nbsp;Request <a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/forms/request/ed-request.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, Application request" border="0"></a><br> &nbsp;&nbsp;Demand <a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/forms/demand/ed-demand.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, Application demand" border="0"></a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/fees/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Fees</a><br> &nbsp;&nbsp;PCT Fee Tables <a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/fees.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, PCT fee tables" border="0"></a><br> &nbsp; <a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://www3.wipo.int/epayweb/public/index.xhtml">WIPO Pay</a></li> </ul> </div> </div> </div><!-- accordion-inner --> </div><!-- accordion-body --> </div><!-- accordion-group --> </div><!--content--news--> <div class="content content--news line"> <div class="nav-expanding"> <h2 class="nav-expanding__header">PCT for Offices</h2> <ul class="nav-expanding__list"> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCTExternal/pages/landing_offices.xhtml" target="_blank" rel="noopener">ePCT for Authorities and Offices</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/epct/tutorials_offices.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">ePCT Videos&nbsp;Tutorials for IP Offices</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/circulars/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">PCT Circulars</a></li> </ul><a class="a-all btn btn-info accordion__toggle collapsed" href="https://www-wipo-int.translate.goog/pct/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB#accordion__collapse__c2" data-toggle="collapse">All resources</a> </div><!-- nav-expanding --> <div class="accordion__group"> <div id="accordion__collapse__c2" class="accordion__body collapse in"> <div class="accordion__inner"> <div class="cols cols--two"> <div class="col"> <ul class="dividers"> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCTExternal/pages/landing_offices.xhtml" target="_blank" rel="noopener">ePCT for Authorities and Offices</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/gdlines.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Guidelines for Authorities and Offices&nbsp;</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/quality/authorities.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Quality Reports by International Authorities</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/activity/office_survey.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT Office Feedback Surveys</a> <a href="https://www-wipo-int.translate.goog/pct/en/activity/office_survey.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"></a></li> <li>Minimum Documentation: Patents <a href="https://www-wipo-int.translate.goog/export/sites/www/standards/en/pdf/04-01-01.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, PCT minimum documentation" border="0"></a> and Non-Patent Literature <a href="https://www-wipo-int.translate.goog/export/sites/www/standards/en/pdf/04-02-01.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, PCT minimum documentation" border="0"></a></li> </ul> </div> <div class="col"> <ul class="dividers"> <li><a href="https://www-wipo-int.translate.goog/pct/en/epct/tutorials_offices.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">ePCT Videos Tutorials for IP Offices</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/circulars/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT Circulars</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/emergency/emergency_preparedness_plans.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Information Concerning Emergency Preparedness Plans</a></li> <li><a href="https://www-wipo-int.translate.goog/patentscope/en/data/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB#ipos">Data Services for Offices</a></li> </ul> </div> </div> </div><!-- accordion-inner --> </div><!-- accordion-body --> </div><!-- accordion-group --> </div><!--content--news--> <div class="content cols cols--three line"> <h2>How to</h2> <div class="col"> <h3>File your application&nbsp;</h3> <figure></figure><a href="https://www-wipo-int.translate.goog/pct/en/training/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/pct/en/images/pct.png" alt="" width="264" height="146" border="0"></a>&nbsp; </div><!--col-one--> <div class="col"> <h3>Manage your application</h3> <p><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCT/about-epct.xhtml?lang%3Den">ePCT</a> with strong authentication provides online access to the file of your international application and a suite of functions to facilitate monitoring and management during the international phase.</p> </div><!--col-two--> <div class="col"> <h3>Search published applications</h3> <p>Published international applications are available on <a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=http://patentscope.wipo.int" target="_self">PATENTSCOPE</a>, one of WIPO's global databases.&nbsp; This database also includes patent documents from <a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=http://patentscope.wipo.int/search/en/help/data_coverage.jsf">78 participating Offices</a> providing public access, free of charge to over 112 million technology disclosures.</p> </div> </div> <div class="content line"> <h2><a name="_contact"></a>Contacts</h2> <p>For questions related to:</p> <section class="cols cols--four is-border-divided"> <div class="col"> <h3>Your specific PCT application</h3> <p>Contact your “<a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCTExternal/pages/TeamLookup.xhtml">authorized officer</a>”.</p> <p>Online: <br> Through <a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCT/about-epct.xhtml?lang%3Den">ePCT (WIPO IP Portal)</a> (with or without strong authentication)</p> <p>Through <a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pctcs.wipo.int/ePCTFiling/" target="_blank" rel="noopener">ePCT Business Continuity Service</a>&nbsp;(<a href="https://www-wipo-int.translate.goog/pct/en/faqs/epct-continuity-service-faq.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">FAQs</a>)</p> <p><em>As of 1 January 2020, limited fax services are available to: +41&nbsp;22 338 8270 and +41&nbsp;22&nbsp;338&nbsp;9090</em></p> </div> <div class="col"> <h3>PCT general or legal matters</h3> <p>E-mail: <a href="mailto:pct.infoline@wipo.int?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT Information Service<br></a>Tel: +41 22 338 8338</p> <p>More about the<a href="https://www-wipo-int.translate.goog/pct/en/infoline.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"> PCT Information Service</a></p> </div> <div class="col"> <h3>Filing a PCT application at the receiving Office of the International Bureau</h3> <p>E-mail: <a href="mailto:ro.ib@wipo.int?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT Receiving Office</a><br> Tel: +41 22 338 9222</p> <p><em>As of 1 January 2020, limited fax services are available to: +41&nbsp;22 338 8270 and +41&nbsp;22&nbsp;338&nbsp;9090</em></p> <p>More about <a href="https://www-wipo-int.translate.goog/pct/en/filing/filing.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">filing a PCT application directly at the RO/IB</a>; including through <a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pctcs.wipo.int/ePCTFiling/" target="_blank" rel="noopener">ePCT Business Continuity Service</a>&nbsp;(<a href="https://www-wipo-int.translate.goog/pct/en/faqs/epct-continuity-service-faq.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">FAQs</a>)</p> </div> <div class="col"> <h3>E-filing with ePCT and PCT-SAFE and ePCT Business Continuity Service</h3> <p>E-mail: <a href="mailto:pct.eservices@wipo.int?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT eServices</a><br> Tel: +41 22 338 9523</p> <p>More about&nbsp;<a href="https://www-wipo-int.translate.goog/pct-eservices/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT eServices</a>, <a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pct.wipo.int/ePCT/about-epct.xhtml?lang%3Den">ePCT (WIPO IP Portal)</a>,&nbsp; <a href="https://www-wipo-int.translate.goog/pct-eservices/en/download/download_client.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT-SAFE</a>, <a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pctcs.wipo.int/ePCTFiling/" target="_blank" rel="noopener">ePCT Business Continuity Service</a>&nbsp;(<a href="https://www-wipo-int.translate.goog/pct/en/faqs/epct-continuity-service-faq.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">FAQs</a>) and <a href="https://www-wipo-int.translate.goog/das/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">DAS</a><em></em></p> <p><em>&nbsp;</em></p> </div> </section> </div> <p></p> <div class="box"> <p style="text-align: right;">Available from Monday to Friday 9.00 am - 6.00 pm CET</p> </div> <div class="content cols cols--four line"> <h2>More about the PCT</h2> <div class="col"> <h3>General information</h3> <ul class="dot__list"> <li><a href="https://www-wipo-int.translate.goog/pct/en/treaty/about.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">About the Patent Cooperation Treaty</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/faqs/faqs.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Protecting your Inventions Abroad: Frequently Asked Questions About the Patent Cooperation Treaty (PCT)</a> <a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/faqs-about-the-pct.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, PCT Treaty" border="0"></a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/news/pct-media.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">PCT in the Media</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/3million/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">PCT Milestone: 3 million</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/2million/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">PCT Two Million</a></li> <li>PCT User Survey 2023/2024 <a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/activity/pct-user-survey-2023-2024.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, PCT User Survey" border="0"></a> <a href="https://www-wipo-int.translate.goog/pct/en/activity/archives.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">Archives</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/inventions/case_studies.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">PCT Case Studies</a></li> <li><a href="https://www-wipo-int.translate.goog/ipstats/en/statistics/pct/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">PCT Statistics</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/pct-sdg.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">The PCT and the SDGs</a></li> </ul> </div><!--col-one--> <div class="col"> <h3>Meetings and documents</h3> <ul class="dot__list"> <li><a href="https://www-wipo-int.translate.goog/pct/en/meetings/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">PCT Meetings and Documents</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/meetings/assemblies/reports.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">PCT Assembly Reports</a></li> <li><a href="https://www-wipo-int.translate.goog/pct-wg/en/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT Working Group</a></li> </ul> </div><!--col-two--> <div class="col"> <h3>Training</h3> <ul class="dot__list"> <li><a href="https://www-wipo-int.translate.goog/pct/en/training/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><em>Learn the PCT</em></a>&nbsp; Video Series</li> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://welc.wipo.int/acc/index.jsf?page%3DcourseCatalog.xhtml%26lang%3Den%26cc%3DPCT_101E%23plus_PCT_101E">PCT Distance Learning Course</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/seminar/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Seminars</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/seminar/webinars/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT Webinars</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/epct/index_epct_tutorials.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self">ePCT Video Tutorials</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/training/external-training.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">External PCT Training Resources</a></li> </ul> </div><!--col-three--> <div class="col"> <h3>Reference</h3> <ul class="dot__list"> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Treaty, Regulations and Administrative Instructions</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/gdlines.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Guidelines for Authorities and Offices</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/forms/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Forms</a></li> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://pctlegal.wipo.int/eGuide/eqe/documents.xhtml">EQE Candidates</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/washington.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Washington Diplomatic Conference on the PCT</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/filing/caf.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Common Application Format</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/fees/equivalent_amounts.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Directives for New Equivalent Amounts of Certain PCT Fees</a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/texts/glossary.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT Glossary </a></li> <li><a href="https://www-wipo-int.translate.goog/pctcaselawdb/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">PCT Case Law Database </a></li> <li><em>History of the PCT Regulations</em> <a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/texts/pct-regulations-history.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF, Regulations" border="0"></a></li> <li><a href="https://www-wipo-int.translate.goog/pct/en/activity/index.html?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB"><em>PCT Yearly Review</em></a></li> </ul> </div> </div> <div class="content cols cols--three line"> <h2>Related Links</h2> <div class="col"> <h3>Patents</h3> <ul class="dividers secondary"> <li><a href="https://www-wipo-int.translate.goog/patents/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Patents</a></li> <li><a href="https://www-wipo-int.translate.goog/patent-law/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Standing Committee on the Law of Patents (SCP)</a></li> <li>WIPO Policy Guide: Alternatives in Patent Search and Examination <a href="https://www-wipo-int.translate.goog/export/sites/www/pct/en/docs/texts/patent_search_examination.pdf?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB" target="_self"><img src="/export/sites/www/shared/images/icon/new/pdf.svg" alt="PDF" border="0"></a></li> <li><a href="https://translate.google.com/website?sl=auto&amp;tl=en&amp;hl=en-GB&amp;u=https://inspire.wipo.int/patent-register-portal/">Patent Register Portal</a></li> </ul> </div><!--col-one--> <div class="col"> <h3>Reference</h3> <ul class="dividers secondary"> <li><a href="https://www-wipo-int.translate.goog/classifications/ipc/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">International Patent Classification (IPC)</a></li> <li><a href="https://www-wipo-int.translate.goog/standards/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">WIPO Standards</a></li> <li><a href="https://www-wipo-int.translate.goog/ipstats/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">WIPO Statistics</a></li> </ul> </div><!--col-two--> <div class="col"> <h3>Other IP Services</h3> <ul class="dividers secondary"> <li><a href="https://www-wipo-int.translate.goog/das/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Digital Access Service</a></li> <li><a href="https://www-wipo-int.translate.goog/case/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">WIPO CASE</a></li> <li><a href="https://www-wipo-int.translate.goog/amc/en/center/pct/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Arbitration and Mediation Center</a></li> <li><a href="https://www-wipo-int.translate.goog/hague/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Hague System</a></li> <li><a href="https://www-wipo-int.translate.goog/madrid/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Madrid System</a></li> <li><a href="https://www-wipo-int.translate.goog/iap/en/?_x_tr_sl=auto&amp;_x_tr_tl=en&amp;_x_tr_hl=en-GB">Inventor Assistance Program (IAP)&nbsp;Online Platform</a></li> </ul> </div> </div><!--content--> <!-- content end --> </div><!-- wrap-inner --> </div><!-- wrap-outer --> </div><!-- container --> <div class="container-footer-outer"> <div class="container-footer-inner"><wipo-footer id="footer"> <span slot="contact">https://www3.wipo.int/contact/en/area.jsp?area=patentscope</span> <span slot="media">https://www.wipo.int/pressroom/en/</span> <span slot="terms">https://www.wipo.int/tools/en/disclaim.html</span> <span slot="privacy">https://www.wipo.int/en/web/privacy-policy/</span> <span 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