How to Patent an Idea in India Without Disclosing It Too Early

Almost every week someone asks us to file a patent on something they demonstrated at a college expo six months ago. Sometimes there is a route forward. Often there is not. This guide is about staying on the right side of that line.

Why disclosure matters so much in India

Indian novelty is assessed against everything publicly available anywhere in the world before your priority date. A conference poster in Pune and a journal in Frankfurt count equally. Once the invention is public, it generally forms part of the state of the art — including your own disclosure being used against your own application.

What counts as public disclosure

• Conference presentations, posters and published abstracts
• Journal articles, theses uploaded to repositories, and preprints
• Product launches, trade fairs and public demonstrations
• Social media posts and video walkthroughs showing how it works
• Selling or offering the product for sale
• Pitching to an audience without confidentiality obligations
• Crowdfunding campaign pages

What generally does not count: conversations under a signed confidentiality agreement, discussions with your patent agent (privileged and professionally confidential), and internal disclosure within your own organisation under obligations of confidence.

The safe sequence

1. Write it down first. Date it. A dated internal record is useful evidence of when you had the invention.
2. Run a patentability search. Before spending on filing, find out whether the space is clear.
3. File before you speak. A provisional specification can be prepared quickly and secures your filing date.
4. Then disclose freely. Once filed, you can present, pitch and exhibit — the priority date is locked.
5. Use NDAs for anything before filing. Investors, manufacturers, contractors and collaborators should all be under written confidentiality.

When an NDA is and is not enough

An NDA preserves confidentiality between parties and is genuinely useful with manufacturers, contract engineers and prospective partners. Its limits are worth understanding: many investors decline to sign at early stages; enforcement after a breach is slow and expensive; and an NDA does nothing about independent development by someone else. A filing date is a right. An NDA is a promise.

If you have already disclosed

Do not assume it is hopeless, and do not disclose anything further. India provides narrow statutory exceptions covering specific situations — including certain disclosures at officially recognised exhibitions and disclosures made in breach of confidence — but these are limited and strictly time-bound. What matters is establishing precisely what was disclosed, to whom, when, and under what terms. That fact-gathering is the first thing we do in these conversations.

Practical situations

• Final-year project being shown at a college expo: file a provisional before the expo. Institutions with an IP Cell handle this routinely.
• Paper accepted for publication: file before the publication date, not before the acceptance date — but leave margin.
• Prototype going to a contract manufacturer: NDA at minimum; provisional filing preferably.
• Pitching to investors: file first. It also strengthens the pitch — a filed application is a concrete asset.
• Soft-launching a product to test the market: a public sale can itself be a disclosure. File first.

How MYCrave can help

When there is deadline pressure, the provisional route exists exactly for this. Our first question is always whether anything has been disclosed already — because it changes everything that follows, and it is far better established at the start than discovered during examination.

Frequently asked questions

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