Rule 10 of the Patents Rules, 2003
Period within which proof of the right under section 7(2) to make the application shall be furnished
Rule 10 fixes the time within which an applicant who is not the inventor must file proof of the right to apply for the patent.
Official legal text
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What this rule requires, step by step
Under the Patents Act a patent application may be made by the true and first inventor, by an assignee of that inventor, or by a legal representative of a deceased person who was entitled to apply. Where the applicant is not the inventor, the Act requires proof of the right to make the application. Rule 10 supplies the timing. The proof must be filed with the application, or within six months from the date of filing of the application.
Proof of right can take two ordinary forms. The simplest is an endorsement on the application form itself, signed by each inventor, assigning the right to apply to the applicant. The alternative is a separate document, usually a deed of assignment or a written statement signed by the inventors, filed with the office. Employment agreements are sometimes offered as proof, but they are only useful if their terms clearly transfer the right to apply for patents on inventions of that kind, and it is safer to obtain a specific assignment.
This is a common failure point for companies. A startup files quickly in the name of the company because that is who will commercialise the technology, intending to sort out paperwork with the founders and engineers later. Time passes, an engineer leaves on poor terms, and the signature needed for the proof of right becomes hard to obtain. The technical merit of the invention is irrelevant to this problem; the objection is about entitlement.
Where the six month period has passed, the position is not automatically hopeless. The Rules contain a general power to extend time or condone delay on a request in the prescribed form with the prescribed fee, subject to the limits set out in those provisions. That relief is discretionary and should never be treated as a substitute for planning. It is also a poor answer where the real problem is that the inventor is unwilling to sign.
The disciplined approach is to obtain signatures before filing. Have every inventor sign the assignment or the endorsement while the project is live and relationships are good, keep the originals safely, and diarise the six month date at the moment of filing so that nothing depends on memory.
Why this rule matters
Companies, universities, research institutions and any applicant who is not personally the inventor.
At filing and in the six months that follow, and again whenever a new inventor is added or an application changes hands.
It creates a time bound duty to prove entitlement to apply, backed by the Act's requirement of a right to make the application.
An objection on entitlement, a stalled application, and in a bad case an inventor who will no longer sign.
How it works in practice
The engineer who left before signing
Kestrel Robotics Pvt Ltd in Coimbatore files an application on a gripper mechanism in the company's name, naming three engineers as inventors. Everyone is busy shipping product, so nobody collects the assignment paperwork. Four months later one of the engineers resigns after a disagreement over equity and stops responding to email. When the company's agent asks for signatures to complete the proof of right before the six month date, only two of the three sign. The company now has to negotiate with a former employee at exactly the moment it has the least leverage, and it explores whether its employment agreement is worded strongly enough to stand as proof. The dispute is eventually settled, but at a cost that dwarfs the price of getting three signatures on a single sheet of paper on the day the application was filed. Proof of right costs least before anyone leaves.
Simplified illustration only. Actual legal outcomes depend on the facts.
Key points to remember
- Applies whenever the applicant is not the inventor, such as a company, university or assignee.
- Proof of right must be filed with the application or within six months from the date of filing.
- Proof may be an endorsement signed by the inventors on the application form, or a separate assignment document.
- Employment agreements help only if they clearly transfer the right to apply for patents.
- Relief for a missed period may be sought under the general power to extend time, but it is discretionary.
- The safest practice is to obtain every inventor's signature before filing.
Common mistakes and misunderstandings
- Assuming that naming the company as applicant is itself proof of entitlement. The office needs a signed transfer of the right to apply.
- Relying on a general employment contract without checking whether it actually assigns the right to apply for patents.
- Leaving signatures until later because everyone is on good terms today. Inventors move on, and signatures become hard to obtain.
Connected provisions
The Patents Rules supply procedure and the Patents Act supplies power. This page covers the procedure, and the sections that give the Controller or the applicant the underlying right or duty are grouped separately so you can move between the two.
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.
- Proof of the right to make the application must be filed with the application or within six months from the date of filing of the application.
Open the deadline calculator — and have every date confirmed against the current Rules before you rely on it.
Where a fee is payable under this provision, the figure comes from the First Schedule. Categories of applicant are charged at different rates, and electronic filing is treated differently from paper filing, so an accurate number can only come from the Schedule in force on the day you file. How Indian patent fees work.
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 10
What counts as proof of right in an Indian patent application?
Either an endorsement on the application form signed by each inventor transferring the right to apply to the applicant, or a separate document such as a deed of assignment or a signed statement from the inventors. It must show that the applicant is entitled to make the application in respect of that invention. A general employment agreement can support the position, but only if its wording clearly covers the right to apply for patents on inventions made in the course of employment. A specific, dated assignment is always the safer document.
What is the deadline for filing proof of right in India?
It must be filed with the application, or within six months from the date of filing of the application. Practitioners diarise that date on the day of filing, because collecting signatures from several inventors, particularly across different cities or organisations, takes longer than people expect. If the period is missed, the Rules contain a general power to extend time or condone delay on a request in the prescribed form with the prescribed fee, but that relief is discretionary and should never be built into a plan.
Do universities and research institutions need to file proof of right?
Yes. If the applicant is the institution rather than the individual researchers, the institution is not the inventor and must show how the right to apply came to it. Most Indian institutions handle this through an intellectual property policy plus a specific assignment signed by each researcher named as an inventor. Where students, visiting researchers or collaborators from another organisation are involved, entitlement can become complicated, and it is worth resolving it before filing rather than during the six month window.
What if an inventor refuses to sign the proof of right?
That is a genuine dispute about entitlement, not a paperwork problem, and it needs advice rather than a workaround. The Act contains machinery for disputes between persons interested in an application, and the Controller can deal with certain questions of entitlement. In parallel, contractual rights under an employment or collaboration agreement may be relevant. What you should not do is file something that misrepresents the position. The far better course is prevention: obtain signed assignments while the invention is being developed.
Is your proof of right in place before the six month date?
MYCrave Consultancy prepares inventor assignments and files proof of right correctly for company and institutional applicants.
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