Rule 12 of the Patents Rules, 2003
Statement and undertaking regarding foreign applications
Rule 12 sets the form and timing for the statement and undertaking about corresponding patent applications filed outside India.
Official legal text
The verbatim statutory text of this provision is reproduced from the official source and checked by our legal reviewer before it is published here. Until that check is complete for this page, read the exact wording directly from the official source linked below — it is the only version that governs.
This explanation is written for clarity, not for citation. The official statutory text and any Gazette notification in force on your date govern, and they prevail over anything said here.
What this rule requires, step by step
The Patents Act obliges an applicant who is also pursuing the same or substantially the same invention abroad to keep the Indian Controller informed about those foreign applications. Rule 12 turns that obligation into procedure. The statement and undertaking is given on Form 3, and the rule fixes when it must be filed and how it must be kept up to date.
The first filing is straightforward. Form 3 is filed with the application, or within six months from the date of filing of the Indian application. It sets out the particulars of corresponding applications filed outside India: the country, the application number, the filing date, the status and related details. Alongside the statement, the applicant gives an undertaking to keep the Controller informed about foreign applications filed later.
The updating obligation was reshaped by the amendments made to the Rules in 2024. Instead of a rolling duty to report each new foreign filing at short intervals, the updated position ties the duty to the examination stage, requiring an updated statement within three months from the date on which the first statement of objections is issued. The 2024 amendments also gave the Controller express power to condone a delay or extend the time for filing Form 3 on a request in Form 4, and recognised that the Controller may take information from publicly available databases. Because this rule has changed, always read the current text before relying on any timetable.
There is a second limb. Where the Controller specifically requires it, the applicant must furnish details about the processing of the foreign applications, such as objections raised, claims allowed or refusals, within the time the Controller allows. This is how the Indian examiner gets sight of prior art and objections already surfaced by other offices.
The reason to take Rule 12 seriously is that failure to disclose information required under this obligation, or furnishing false information, is a ground on which a granted patent can be revoked. Indian courts and the Patent Office have treated the duty as a real one. It is an administrative task with a substantive consequence, and it should sit on a docket with the same weight as a response to an examination report.
Why this rule matters
Any applicant filing for the same invention in India and abroad, including Indian companies filing overseas and foreign applicants entering India.
At filing, within six months of the Indian filing date, and again when the first statement of objections is issued.
It creates a continuing duty of disclosure about corresponding foreign applications, enforced through the form and timing prescribed here.
Objections during prosecution and, after grant, exposure to revocation on the ground of failure to disclose the required information.
How it works in practice
A portfolio that outgrew its paperwork
Anvaya Biosciences Pvt Ltd in Hyderabad files an Indian application and then, over the next eighteen months, files corresponding applications in several other countries as investors push for international coverage. The Indian Form 3 filed at the outset lists only the two foreign filings that existed at the time. Nobody updates it as the portfolio grows, because the founders regard it as routine paperwork. When the first statement of objections issues on the Indian application, their new agent, Priya Raghavan, immediately audits every foreign filing in the family and files an updated statement within the period the Rules allow, together with a request in the prescribed form to cover the earlier lapse. She explains why she treated it as urgent: failure to disclose information required under this obligation is a ground of revocation, and a competitor challenging the patent years later would begin by comparing the foreign filing history against what was actually told to the Indian office.
Simplified illustration only. Actual legal outcomes depend on the facts.
Key points to remember
- The statement and undertaking about corresponding foreign applications is given on Form 3.
- It is filed with the application or within six months from the date of filing of the Indian application.
- Following the 2024 amendments, an updated statement is required within three months from the date the first statement of objections is issued.
- The Controller may separately require details of how the foreign applications are being processed.
- A request in Form 4 may be made for condonation of delay or extension of time for filing Form 3.
- Failure to disclose the required information, or giving false information, is a ground for revoking a granted patent.
- The rule has been amended, so always check the current text before relying on any period.
Common mistakes and misunderstandings
- Treating Form 3 as a one time filing at the start. The obligation continues while the application is pending and must be updated.
- Listing only the applications the applicant thinks are relevant. The duty relates to applications for the same or substantially the same invention, not to a filtered selection.
- Assuming the Indian office will find foreign filings for itself. Even though public databases may be consulted, the disclosure duty stays with the applicant and non compliance carries a revocation risk.
Connected provisions
Every rule traces back to a section. The linked sections are shown apart from the rule because the two are separate instruments, and because a rule that goes beyond its parent section can be challenged. Knowing the parent provision is part of reading the rule properly.
Forms, deadlines and fees
Forms used under the Patents Rules are prescribed in the Second Schedule. They are revised when the Rules change, so download the current version from the Patent Office website rather than reusing a copy saved earlier.
- Form 3 must be filed with the application or within six months from the date of filing of the Indian application.
- Under the 2024 amendments to the Rules, an updated statement is required within three months from the date of issuance of the first statement of objections.
- Where the Controller requires details of the processing of foreign applications, they must be furnished within the time the Controller allows.
Open the deadline calculator — and have every date confirmed against the current Rules before you rely on it.
Any official fee connected with this provision is fixed by the First Schedule to the Patents Rules, not by the provision itself. The amount depends on who the applicant is and on whether the filing is made online or on paper, so no figures are reproduced here. How Indian patent fees work.
Amendment history
What changed in this provision, newest first. Read the footnotes in the official consolidated text for the full record.
- 2024The Patents (Amendment) Rules, 2024The duty about corresponding foreign applications was simplified. Instead of updating the Office from time to time, the applicant files a single updated statement within the period allowed after the first examination report, and the Controller may condone a delay or extend the time on a request in the prescribed form.
- 2005The Patents (Amendment) Rules, 2005A fixed period, counted from the filing of the application, was set for filing the statement and undertaking about foreign applications.
Compiled from official consolidated texts and Gazette notifications. See the site-wide change log.
Related judgments
No judgment summaries appear here yet. Our process requires a legal review of each case note before publication, covering the citation, the court and the point actually decided. Until a note for this provision has passed that check, the section stays empty rather than carrying unverified material. How case notes are prepared.
Questions people ask about Rule 12
What is Form 3 in Indian patent practice?
It is the statement and undertaking about corresponding applications for the same or substantially the same invention filed outside India. The statement sets out particulars such as country, application number, filing date and status, and the undertaking commits the applicant to keep the Controller informed about later foreign filings. It is filed with the Indian application or within six months of the Indian filing date, and it has to be kept current during prosecution. It is short, routine looking and one of the most consequential forms in the whole system.
How often must Form 3 be updated after the 2024 rule changes?
The 2024 amendments moved the updating duty away from a rolling short interval reporting obligation and tied it to the examination stage, requiring an updated statement within three months from the date the first statement of objections is issued. The amendments also expressly allow the Controller to condone delay or extend the time for filing on a request in the prescribed form. Because this area has changed recently and may change again, confirm the current requirement against the latest text of the Rules before you rely on any schedule.
What happens if I do not disclose my foreign patent applications in India?
During prosecution you can expect an objection and a demand for the information. The more serious risk arrives after grant. Failure to disclose the information required by the Act on this subject, or furnishing information that is false to the applicant's knowledge, is a ground on which a patent can be revoked. That makes it a favourite line of attack for an opponent or defendant in infringement proceedings, who will compare the foreign filing history against what was told to the Indian office. Treat the duty as substantive, not clerical.
Does Form 3 apply to national phase entries from a PCT application?
The disclosure duty concerns applications for the same or substantially the same invention filed outside India, so an applicant coming into India through the national phase of an international application still has to account for the corresponding filings in the family. In practice, applicants list the international application and the national or regional filings made from it. Because families become complex quickly, the reliable approach is to maintain a single family table and update the Indian statement from it whenever the rule requires a fresh filing.
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