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Frequently Asked Questions (FAQs)

  • Protecting your Inventions Abroad: FAQs about the PCT PDF
  • Filing sequence listings under ST.26
  • ePCT Business Continuity Service
  • The America Invents Act (AIA)
  • Third Party Observations
  • Guidance on how to file amendments under Articles 19 and 34
  • Restoration of the Right of Priority
  • Missing Parts and Incorporation by Reference
  • Rectification of Obvious Mistakes
  • Rule 49.6: Reinstatement of Rights
  • Article 22(1): Effects of modification of this time limit

Related Links

  • Amendments to the Regulations
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