Patent E-Register India: How to Check Whether a Patent Is Still in Force

To check if an Indian patent is alive: go to iprsearch.ipindia.gov.in → "Patent E-register" tab → enter the patent number (e.g. 236542) → CAPTCHA → "Show E-Register". You'll see the patent's legal status — in force or ceased — plus the renewal-fee record, patentee details and term dates. Here's how to read what you find, and why it matters more than most people realise.

The InPASS Patent E-register tab: enter the granted patent number and CAPTCHA

Why this tool exists

An Indian patent's 20-year term is conditional: renewal fees fall due every year from year 3, rising with age. Many patents are deliberately allowed to lapse mid-life when they stop justifying the fee. The E-register is the authoritative public record of that life-and-death ledger — which makes it the tool for three very practical questions:

1. "Can this patent still be enforced against me?" (freedom-to-operate)
2. "Is my own patent's renewal paid up?" (portfolio hygiene — missed renewals are a leading cause of accidental loss)
3. "Is this patent worth licensing/buying?" (due diligence)

Step-by-step

1. Open the E-register tab — one field: granted patent number (not the application number; the record's bibliographic view maps one to the other).
2. Solve the CAPTCHA → Show E-Register.
3. Read the record: patentee name/address, date of patent, status (in force / ceased), and the renewal payment history — which years were paid, and when the next fee falls due.

Reading it correctly — three traps

1. "Ceased" doesn't always mean free-to-use. A patent lapsed for non-payment can be restored within 18 months (Section 60) if the lapse was unintentional — and rights may partially revive. A recently-ceased patent is a yellow flag, not a green one.
2. In-force ≠ infringed. Whether your product actually falls within the claims is a separate, claims-level analysis — the E-register only answers "is it alive".
3. One patent is rarely the whole story. The same invention may have related filings (divisionals, family members abroad). A proper freedom-to-operate search maps the whole minefield, not one mine.

For patent owners: the renewal discipline

• Fees run year 3 through year 20, payable annually (or in lump periods), amounts rising with age; small entities/startups pay reduced official fees.
• A 6-month grace period with surcharge exists — after that, cessation and the restoration gamble.
• Diary the dates or use a professional annuity service; the E-register is your audit trail that payments actually registered. (We manage renewal calendars for clients as part of patent prosecution & portfolio support.)

FAQ

Is the E-register the same as Application Status? No — E-register covers granted patents' life status; Application Status tracks pending applications through examination. (Pending application? See our our application-status guide.)

I only have the application number, not the patent number. Look the application up via Patent Search (field: Application Number) — the granted record shows the patent number; then use E-register.

How current is the data? Generally reliable but can lag recent payments by days. For a transaction or litigation decision, verify with a certified register extract from the Patent Office.

Can a lapsed patent block my product launch? If restoration is still possible (within 18 months of cessation), treat it as potentially alive. Beyond that window, that specific patent can't revive — but related rights may exist. Get an FTO opinion before betting a launch on it.

Do these renewals apply to design registrations too? Designs have their own scheme (10 years + one 5-year extension, single renewal) — see our design registration page.

Making a build-or-launch decision that hinges on someone’s patent? Get a freedom-to-operate opinion before you commit.

This guide is for general information and education only and is not legal advice.