The PCT Applicant’s Guide
(Last updated 23 March 2023)
The PCT Applicant’s Guide is updated almost every week with information received by the International Bureau. Users of the Guide who wish to see when any individual page of the Guide was last updated, can check the date printed at the foot of that page. Each page in the Guide is dated in this way.
- Introduction to the International Phase (also available in French, Spanish and Russian)
- Introduction to the National Phase (also available in French, Spanish and Russian)
- PCT Contracting States – (formerly Annex A)
- Country Names and Two-Letter Codes (WIPO Standard ST.3) – (formerly Annex K)
- EQE Candidates
PCT Guide Updates – Updates and revisions to the PCT Applicant's Guide. Weekly.Sign up | All WIPO newsletters
Certain Aspects of National/Regional Patent Laws have been collected by the Standing Committee on the Law of Patents.