Current
Version applicable as from
January 1, 2026
Published on:
December 11, 2025
This is the version currently applicable
Changes in this version include:
RO: RO fees
ISA: ISA fees
SISA: SISA fees
IPEA: IPEA fees
Version applicable as from
December 11, 2025
Published on:
December 11, 2025
Changes in this version include:
RO: Electronic filing (with effect since 14 November 2025)
Version applicable as from
October 31, 2025
Published on:
October 30, 2025
Changes in this version include:
RO: Electronic filing
Version applicable as from
July 1, 2025
Published on:
October 7, 2025
Changes in this version include:
RO: RO fees
ISA: ISA fees
Summary of requirements for entry into the national phase: Various
Annexes: Various
Version applicable as from
June 1, 2025
Published on:
May 1, 2025
Changes in this version include:
ISA: ISA fees
Version applicable as from
April 1, 2025
Published on:
March 24, 2025
Changes in this version include:
ISA: ISA fees
Version applicable as from
January 20, 2025
Published on:
March 24, 2025
Changes in this version include:
This version contains editorial changes only
Version applicable as from
January 1, 2025
Published on:
November 25, 2024
Changes in this version include:
RO: RO fees
ISA: ISA fees
SISA: IB fees
IPEA: IPEA fees
Version applicable as from
September 1, 2024
Published on:
October 31, 2024
Changes in this version include:
ISA: ISA competency (entry into force 1 September 2024)
IPEA: IPEA competency (entry into force 1 September 2024)
Version applicable as from
August 15, 2024
Published on:
August 15, 2024
Changes in this version include:
Useful information: Useful information
ISA: ISA competency, Informal comments
IPEA: IPEA competency
Version applicable as from
July 1, 2024
Published on:
June 20, 2024
Changes in this version include:
ISA: ISA fees
Version applicable as from
March 28, 2024
Published on:
March 28, 2024
Changes in this version include:
GENERAL INFO: Payment methods
RO: Electronic filing, Incorporation by reference
IPEA: IPEA Competency
Summary of requirements for entry into the national phase: National phase, Restoration of the right of priority, Reinstatement of rights
Version applicable as from
January 1, 2024
Published on:
December 1, 2023
Changes in this version include:
RO: RO fees
ISA: ISA fees
SISA: IB fees
IPEA: IPEA fees
Version applicable as from
December 1, 2023
Published on:
November 30, 2023
Changes in this version include:
ISA: ISA competency
IPEA: IPEA competency
Version applicable as from
October 1, 2023
Published on:
September 28, 2023
Changes in this version include:
ISA: ISA competency
IPEA: IPEA competency
Version applicable as from
September 15, 2023
Published on:
September 15, 2023
Changes in this version include:
From now on, you will find here a summary of changes to each new version of the PCT Applicant's Guide, as well as the detailed list of these changes. Moreover, you can now easily access the historical versions of the Guide.
ISA: ISA fees