PCT / International Patent
International patent protection runs through the PCT (Patent Cooperation Treaty) or the Convention route — filing in India claiming priority from an earlier foreign filing (Paris Convention) — plus PCT National Phase entry into India from an existing international application.
What's Included
- Guidance on choosing between PCT and Convention routes.
- Support with PCT National Phase entry into India.
- Coordination of priority document deadlines.
PCT / International Patent — Step by Step
Establish priority
File an Indian or foreign priority application, or enter national phase from an existing PCT application.
Choose your route
PCT International (single international application designating multiple countries) or Convention (direct filing claiming priority under the Paris Convention).
Priority documents
Submitted within the statutory window.
Deadline: 18 months from the priority date
National phase examination
Each designated country examines the application under its own patent law.
Documents & Inputs Required
- Priority documents (within 18 months of the priority date for convention/PCT filings).
- Form-1 and Form-2 as applicable to the chosen route.
PCT / International Patent — Common Questions
PCT vs Convention — what is the difference?
PCT is a single international application that can later enter national phase in many countries; Convention is a direct filing in a specific country claiming priority from an earlier filing, under the Paris Convention.
What is the deadline for priority documents?
Priority documents must be submitted within 18 months of the priority date.
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