PCT Legal Texts
Access all PCT System legal and procedural texts.
Patent Cooperation Treaty [PDF] (as in force from April 1, 2002)
Regulations under the PCT [PDF] (as in force from July 1, 2025)
PCT Administrative Instructions [PDF] (as in force from July 1, 2025)
PCT Receiving Office Guidelines [PDF] (as in force from July 1, 2025)
PCT International Search and Preliminary Examination Guidelines [PDF] (as in force from July 1, 2025)
Patent Cooperation Treaty (as in force until March 31, 2002) [PDF]
Regulations under the PCT (as in force until June 30, 2025) [PDF]
PCT Administrative Instructions (as in force until June 30, 2025) [PDF]
PCT Receiving Office Guidelines (as in force until June 30, 2025) [PDF]
PCT International Search and Preliminary Examination Guidelines (as in force until June 30, 2025) [PDF]
Upcoming amendments
Amendments to the PCT Regulations (entry into force July 1, 2025) PCT/A/56/2, Annex I
Useful information
- PCT Notifications
- Reservations and incompatibilities
- History of the PCT Regulations [PDF]