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January 1, 2026
Published on:
November 13, 2025
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Version applicable as from
June 15, 2025
Published on:
May 30, 2025
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April 1, 2025
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February 20, 2025
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January 1, 2025
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November 25, 2024
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December 1, 2024
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November 7, 2024
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October 4, 2024
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October 4, 2024
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Summary of requirements for entry into the national phase: National fees
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July 1, 2024
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October 1, 2024
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May 23, 2024
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May 23, 2024
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GENERAL INFO: Payment methods
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Summary of requirements for entry into the national phase: National phase, Restoration of the right of priority, Reinstatement of rights
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March 1, 2024
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February 1, 2024
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January 1, 2024
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December 1, 2023
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November 1, 2023
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October 5, 2023
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September 15, 2023
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September 15, 2023
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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.
GENERAL INFO: Contact details, Various