Manual explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Who owns a patent, and on what terms, is decided by the documents on the Register of Patents. Chapter 11 of the Manual explains how the Office records assignments and licences, how it keeps the register, how a granted patent can be amended or surrendered, and how the register is rectified. This article follows that chapter and notes where later law has moved.
The Manual is the Patent Office's guidance and does not have the force of law; the Patents Act, 1970 and the Patents Rules, 2003 as now in force prevail. The Office revises its manuals, so check the current version on ipindia.gov.in.
An assignment, mortgage, licence or other interest is valid only if in writing, embodying all the terms and duly executed, and the person entitled applies in Form 16 to have it entered in the register. An unregistered document is not admitted as evidence of title, with limited exceptions. Where the Manual speaks of rectification before the IPAB, that board has been abolished, and the High Court now hears such applications.
11.03: registering assignments and other interests
The legal rule is in section 68 and section 69, with the Form and register details in rules 88 to 92. The Manual gives the practice:
- The document must record all the terms and conditions governing the parties' rights and obligations, in writing and duly executed.
- Anyone who becomes entitled by assignment, transmission or operation of law, or as mortgagee or licensee, applies in Form 16. The assignor, mortgagor or licensor may apply as well.
- On proof of title to the Controller's satisfaction, the Controller makes the appropriate entry.
- If the parties are in dispute, the Controller may decline to act until a competent court decides.
- A document that has not been registered is not admitted by the Controller or a court as evidence of title, unless reasons recorded in writing allow it. The exception is an application to register the right or to rectify the register.
- If the patentee or licensee asks, the terms of a licence are kept confidential, except under a court order.
- The document is presented with the application with a scanned copy certified true by the applicant or agent, and the Controller may call for further proof or consent.
If you are acquiring or licensing a patent, our patent assignment service can check the deed against these points and file Form 16. No fee amount is stated here; the fee head is in the First Schedule as substituted in 2024.
11.04: surrender
The Manual says a patentee may offer to surrender at any time by an application on plain paper. The Controller publishes the offer in the Official Journal and notifies every person registered as having an interest. Any person interested may oppose in Form 14 within the period the Manual states; the written statement, reply, evidence, hearing and costs follow the post-grant opposition rules without the Opposition Board stage. If the Controller accepts the offer, the patent may be revoked and the revocation published. For the period and procedure as now in force, use rule 87 on surrender; the rule as now in force prevails.
11.06 and 11.07: amendment after grant
Paragraph 11.06 explains that a patentee may apply after grant to amend the application, complete specification or related documents, on a form the Manual names, with the prescribed fee. In summary:
- The request states the nature of the amendment, highlighted on an annexed copy, with reasons.
- Amendment is allowed only by way of disclaimer, correction or explanation, to bring in actual fact. It must not make the specification claim or describe matter not in substance disclosed before, and the amended claims must fall wholly within the earlier claims.
- A substantive amendment application is published; any person interested may oppose, and the opposition runs on the post-grant opposition model without the Board stage.
- Allowed amendments are published. Leave obtained by fraud is a ground of revocation under section 64(1)(o).
- If an infringement suit or a High Court revocation proceeding is pending, the Controller makes no order on the amendment.
Paragraph 11.07 deals with a patent granted to a person who had died, or a body corporate that had ceased to exist: the Controller may substitute the name of the person who ought to have received the patent on an application in the form the Manual names with evidence. The statutory text is in section 57 and sections 44 and 45; confirm each form and time limit in the current Second Schedule article before filing.
11.08: the register
The Manual says the register is kept in electronic form under the Controller and is open to the public on the Office website. It holds the patentee's details, the title, the date of patent and of grant, the address for service, notifications of assignments, transmissions, licences, amendments, extensions and revocations, payment of renewal fees, and particulars of proceedings before the Controller and the courts. A certified copy or extract is admissible in evidence in legal proceedings. A patentee may apply to alter name, nationality, address or address for service, with such proof as the Controller requires, and may ask, with the prescribed fee, to enter an additional address for service in India.
11.09: rectification, and what the IPAB's end changed
The Manual says an aggrieved person may apply to the Intellectual Property Appellate Board to rectify the register for an omitted entry, an entry made without sufficient cause, an entry wrongly remaining, or an error or defect. The Controller is given notice and may be heard, and rectifies the register on receiving the Board's order. That was the position in 2019. The Board was abolished by the Tribunals Reforms Act, 2021, and the High Court now hears these applications; the Manual's references to the Board at 11.03(5) and 11.09 should be read in that light. See sections 71 and 72 and the appeal routes after the IPAB. The Act and Rules as now in force prevail.
Checklist table
| Task | What the Office checks | What you file |
|---|---|---|
| Register an assignment | Writing, full terms, due execution, proof of title | Form 16 with a certified scanned copy of the document |
| Keep a licence confidential | Request by patentee or licensee | A confidentiality request in the application |
| Change name or address | Proof of the change | Application to alter the register |
| Amend after grant | Disclaimer, correction or explanation only; no new matter | Request with highlighted copy, reasons and amended pages |
| Surrender | Publication, notice to registered interest holders | Application on plain paper |
| Rectify the register | Ground fits one of the four heads | Application to the High Court, not the Board |
A worked example
Atlas Sensors Ltd buys a patent from a university and signs a deed that records the price and the field of use. The deed is executed, a scanned certified copy is attached, and Atlas files Form 16 as assignee. The Controller enters the transfer. Months later, a dispute over an unregistered licence reaches court; because the licence was never entered, the Manual's rule on unregistered documents as evidence of title becomes a problem for the licensee.
Common lapses
- An assignment that leaves out some of the terms agreed between the parties.
- Presenting the deed without a certified scanned copy.
- Relying on an unregistered licence as proof of an interest.
- Seeking amendment after grant that adds matter not disclosed before.
- Looking for the Appellate Board when the register needs rectification.
Need help with assignments and the register?
A clean chain of title is worth building before a sale, licence or fundraising, not after. If you want a deed reviewed and registered, our patent assignment service can handle the Form 16 filing and the register follow-up.
Key takeaways
- Assignments and licences must be in writing and duly executed; register them by Form 16.
- An unregistered document is generally not admitted as evidence of title.
- Amendment after grant is limited to disclaimer, correction and explanation.
- Surrender is published and open to opposition.
- Rectification now goes to the High Court; the Manual's Board references are overtaken.
Read next
- Chapter 11: renewal and restoration
- Chapters 11 and 14: working of patents and Form 27
- Rules 88 to 92: register and registration of title
- Section 69: registration of assignments
Disclaimer: Based on the manuals and guidelines published by the Office of the Controller General of Patents, Designs and Trade Marks that are named in the article, as consulted on 4 October 2026. They are guidance and do not have the force of law; the Patents Act, 1970 and the Patents Rules, 2003 as amended (including the 2024 amendment rules) prevail, and the current versions on ipindia.gov.in should be checked. This article is general information, not legal advice; check the official text before acting.