How to write an invention disclosure: a practical guide for university faculty

Most university patents start with a form that a professor fills in on a busy afternoon, often a week before a conference deadline. The quality of that form decides a lot: whether the TTO understands the invention, how quickly a patent is drafted, how strong the claims are and whether industry ever hears about it.

This guide is for faculty members who want to turn a research result into a patent or a licence. It explains what an invention disclosure is, what to put in it, how to decide who the inventors are and what happens after you submit. Every institution has its own form and IP policy, so treat this as a guide to filling yours in well.

What an invention disclosure is, and what it is not

An invention disclosure is a confidential internal report to your institution's technology transfer office (TTO), IPR cell or research and development office. It tells them you have a result that may be protectable and commercially useful.

It is not a patent application. Nothing is filed with the Patent Office yet, and it does not secure a filing date. It is also not a public disclosure: it stays inside the institution under its confidentiality rules. The TTO uses it to decide whether to file, what to file, and who in industry might be interested.

When to submit: before you go public

Submit the disclosure as soon as you have a result you can describe and support with data, and always before any paper, poster, thesis submission, conference talk, preprint, grant report made public, or even a detailed conversation with a company without an NDA.

Indian patent law requires novelty. Publishing first can make your own paper prior art against your later application. Section 31 of the Patents Act gives only narrow exceptions, such as a paper read before a learned society or display at a notified exhibition, and since the Patents (Amendment) Rules, 2024 a qualifying disclosure must be declared on Form 31 with a 12-month grace period. Most journal publications do not fit those exceptions. Our article on publishing before filing explains what can still be saved if this has already happened.

A practical rule: tell your TTO at least four to six weeks before any planned publication. That gives time to evaluate and, if needed, file a provisional application to secure a date. Publication and patenting can then go ahead together.

What to include in your invention disclosure

Write for an intelligent reader outside your field. The TTO staff, the patent agent and later an industry partner all need to understand it.

1. A plain title. Describe what it does, not the project name. "Low-cost paper sensor that detects lead in drinking water within five minutes" beats "Project AQUA-3".

2. The problem. What need does it meet, and why do existing approaches fall short? Cite the closest papers and patents you know. Being honest about prior art helps the TTO; it does not weaken your case.

3. What is new. In two or three sentences, the key difference from what exists. This becomes the heart of the patent claims.

4. How it works. Enough detail that a skilled person could reproduce it: materials, steps, conditions, ranges, circuit or system diagrams, code architecture. Include alternatives you tried or think would also work. Alternatives help the patent agent draft broader claims.

5. Data that proves it. Experimental results, comparisons with existing methods, number of repeats and the conditions. Say what has not yet been tested.

6. Stage of development. Is it a lab concept, a working prototype or tested with real users? A rough technology readiness level helps the TTO judge what a company would need to do next.

7. Commercial angle. Possible applications, the industries that might use it and any companies that have already shown interest. You do not need a business plan. A few honest lines are enough.

8. Contributors and funding. Everyone who contributed to the idea, their affiliations, and every source of funding, sponsored project, material transfer agreement or collaboration agreement involved. These can affect ownership. Our article on who owns a PhD student's invention covers how this works for students.

9. Disclosures, past and planned. Every talk, paper, poster, thesis or conversation so far, with dates, and every planned one.

Inventorship is not authorship

This is the section faculty most often get wrong, and it matters legally.

In patent practice, an inventor is someone who contributed to the conception of at least one claimed feature of the invention. Authorship on a paper follows academic custom and often includes people who ran experiments, provided samples, supervised the lab or wrote the paper. Those contributions are valuable, but they do not by themselves make someone an inventor.

Getting it wrong in either direction causes problems. Leaving out a true inventor, or adding someone who is not one, can lead to disputes over ownership and royalty shares, and can complicate licensing. In the application, inventors are declared on Form 5. List everyone who contributed to the idea in your disclosure, describe what each person contributed, and let the TTO and patent agent finalise inventorship once the claims are drafted.

What happens after you submit

Typical steps at an Indian institution:

1. Acknowledgement and review, often within a few weeks, though timelines vary widely between institutions.
2. Prior art search and evaluation by the TTO or an external patent agent.
3. Decision to file a provisional or complete application, to wait for more data, or not to file. If the institution does not file, its IP policy may allow the rights to be released to the inventors.
4. Drafting, where your input is essential. Read the draft claims carefully: you know the science best.
5. Marketing and licensing, where the TTO looks for industry partners. Our article on how university technology transfer works covers this stage and where deals tend to stall.

Your institution's IP policy sets the revenue share between inventors, the department and the institution. Read it before you disclose, so you know how royalties and equity in a faculty startup would be shared.

Common mistakes

• Submitting the day before a conference. The TTO cannot act in a day.
• Writing only the abstract of a paper. It lacks the detail and alternatives a patent needs.
• Leaving out funding and collaborators. A sponsor's rights can block a licence later.
• Treating inventorship as a courtesy. It is a legal question decided by the claims.
• Never following up. Ask for a decision date and keep in touch with the TTO.

TT Co-Pilot, Zernyx's AI assistant for technology transfer, is built for TTO teams and university faculty on Zernyx's proprietary technology licensing dataset. It is a useful sounding board when you are working out how to describe your technology and who in industry might use it.

FAQ

Is an invention disclosure the same as a patent application?

No. It is an internal, confidential report to your institution. It does not secure a filing date. The patent application is filed later by the institution, usually through a registered patent agent.

Can I publish my paper after submitting the disclosure?

Ask your TTO first. Once a provisional or complete application has been filed, publication is usually safe for that subject matter. Publishing before filing can destroy novelty.

Who should be listed as an inventor?

Only people who contributed to conceiving at least one feature that is claimed in the patent. List all contributors in the disclosure and let the patent agent confirm inventorship against the final claims.

Do I get a share of the royalty?

Most Indian institutions share licensing income with inventors under their IP policy. The share and how it is split among co-inventors vary, so check your institution's policy.