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Patent myth
“Form 3 is routine paperwork with no consequences.”
Failure to disclose foreign filing particulars under section 8 is a ground of revocation under section 64(1)(m).
Indian courts have held that revocation on this ground is discretionary and turns on whether the omission was deliberate rather than a bona fide error - but it is a defence you do not want to have to run, and it has weighed against patentees seeking interim relief. The 2024 Rules simplified the ongoing duty and added a power to condone delay by up to three months on a Form 4 request.
Large families with foreign filings handled by different firms are where this goes wrong.
Sources & further reading
- The Patents Act, 1970 (consolidated to 1 August 2024) — Official IP India text
- The Patents Rules, 2003, as amended (e-version updated to 15 March 2024) — Official IP India text
- The Patents (Amendment) Rules, 2024 - G.S.R. 211(E), 15 March 2024 — Gazette text via WIPO Lex
Related
Section 8 particulars
The duty to tell the Indian Patent Office about corresponding applications you have filed outside India for the same or substantially the same invention, and to keep…
The form that can revoke a patent
Section 8 requires you to tell the Indian Patent Office about corresponding applications filed abroad. It is administrative, it is easy to overlook in a large family…
The case that made Section 8 revocation discretionary
Not sure whether this applies to your invention?
The honest answer usually needs someone to look at your actual disclosure, your timeline and the prior art. That is a conversation, not an article.
Educational guidance, not legal advice. This material is published by Ragulika IP for general education and information. It is not legal advice, it does not create a professional-client relationship, and it is not a substitute for advice on your own facts. Patentability, infringement, prosecution strategy and every other IP outcome turn on the specific facts and on the law and Patent Office practice as they stand at the time you act. Please take professional advice before making a decision, and read the underlying provision or judgment before relying on any point stated here.
Last reviewed by Ragulika IP on 2026-08-23. Indian patent law and Patent Office practice change; check the position before you rely on it.