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Version applicable as from
October 30, 2025
Published on:
October 30, 2025
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GENERAL INFO: Contact details
Version applicable as from
October 10, 2024
Published on:
November 5, 2024
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Version applicable as from
April 11, 2024
Published on:
June 28, 2024
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Version applicable as from
September 15, 2023
Published on:
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, RO Competency, DO/EO Competency, PCT Types of protection, Provisional protection after international publication