Patent Cooperation Treaty (PCT)

The Patent Cooperation Treaty (PCT) makes it possible to seek patent protection for an invention simultaneously in each of a large number of countries by filing an "international" patent application. Such an application may be filed by anyone who is a national or resident of a PCT Contracting State. It may generally be filed with the national patent office of the Contracting State of which the applicant is a national or resident or, at the applicant's option, with the International Bureau of WIPO in Geneva.

Members

• Contracting parties
• Members of the PCT Union Assembly

Additional information

• The PCT Applicant's Guide
• Treaty Preparatory Documents

Treaty, acts and other texts in force

Treaty and Acts

Regulations

Administrative instructions

Historical archives

Treaty and Acts

• Patent Cooperation Treaty (PCT) (as modified on February 3, 1984)
• Patent Cooperation Treaty (1970)

Regulations

• Regulations under the Patent Cooperation Treaty (as in force from July 1, 2022)
• Regulations under the Patent Cooperation Treaty (as in force from July 1, 2020)
• Regulations under the Patent Cooperation Treaty (as in force from July 1, 2019)
• Regulations under the Patent Cooperation Treaty (as in force from July 1, 2018)
• Regulations under the Patent Cooperation Treaty (as in force from July 1, 2017)
• Regulations under the Patent Cooperation Treaty (as in force from July 1, 2016)
• Regulations under the Patent Cooperation Treaty (as in force from July 1, 2015)
• Regulations under the Patent Cooperation Treaty (as in force from July 1, 2014)
• Regulations under the Patent Cooperation Treaty (as in force from January 1, 2013)

Administrative instructions

• Administrative Instructions under the Patent Cooperation Treaty (as in force from July 1, 2022)
• Administrative Instructions under the Patent Cooperation Treaty (as in force from January 1, 2022)
• Administrative Instructions under the Patent Cooperation Treaty (as in force from July 1, 2020)
• Administrative Instructions under the Patent Cooperation Treaty (as in force from January 1, 2019)
• Administrative Instructions under the Patent Cooperation Treaty (as in force from July 1, 2017)
• Administrative Instructions under the Patent Cooperation Treaty (as in force from December 15, 2016)
• Administrative Instructions under the Patent Cooperation Treaty (as in force from July 1, 2015)
• Administrative Instructions under the Patent Cooperation Treaty (as in force from September 16, 2012)