Planning to file a patent application outside India? If the inventor or applicant is resident in India, you may first need a Foreign Filing License (FFL). Skipping this step can have serious consequences for your Indian patent rights — so it is worth understanding before you file abroad.
What is a Foreign Filing License?
Under Section 39 of the Patents Act, 1970, a person resident in India generally cannot make or cause to be made a patent application outside India for an invention, unless one of the following is true:
- A written permit — the Foreign Filing License — has been granted by the Controller; or
- An application for the same invention has first been filed in India, and at least six weeks have passed with no secrecy direction imposed on it.
How do you obtain one?
A request for permission to file abroad is made to the Indian Patent Office in Form 25. In practice, where the invention raises no defence or sensitive concerns, this permission is often granted relatively quickly.
Why does this requirement exist?
The FFL regime is a national-security safeguard. It allows the government to review inventions — particularly those relevant to defence or atomic energy — before they are disclosed to foreign patent offices. Where an invention is sensitive, the Controller will not grant a permit without the Central Government’s consent, and a secrecy direction may be imposed.
Who needs to be careful?
- Indian-resident inventors and applicants filing first in another country.
- Multinational teams where an inventor resident in India contributed — even if the applicant company is foreign, the Indian-resident inventor’s involvement can trigger the requirement.
- Startups rushing to file in the US or via PCT without first clearing the India position.
What happens if you ignore it?
Non-compliance is not a paperwork technicality. Contravening Section 39 can jeopardise the corresponding Indian patent (it may be refused or revoked) and can carry penalties. The safe path is simple: clear the FFL position before filing abroad.
How IPVigil helps
IPVigil handles Foreign Filing License applications swiftly and transparently, so your international filing strategy stays compliant from day one. Raise a query to discuss your foreign filing plans.
This article is general educational information about Indian patent practice and is not legal advice. Confirm your specific position with a qualified patent professional or the Indian Patent Office.