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
Additional information
Patent Cooperation Treaty milestones
- Adopted: Washington - June 19, 1970
- Amended: September 28, 1979
- Modified:
○ February 3, 1984
○ October 3, 2001
Treaty, acts and other texts in force
Treaty and Acts
Regulations
- Regulations under the Patent Cooperation Treaty (as in force from July 1, 2025)
- Regulations under the Patent Cooperation Treaty (as in force from January 1, 2026)
Administrative instructions
Historical archives
Treaty and Acts
Regulations
- Regulations under the Patent Cooperation Treaty (as in force from July 1, 2024)
- 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, 2024)
- 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)