Understanding Patent Form 27 – Statement of Working of Patented Invention – Complete Guide
Patent Form 27 is the statement regarding working of patented invention(s) on a commercial scale in India. The current form captures whether the patent is worked or not worked and related particulars for the relevant reporting period.
Who should use this guide?
This guide is for applicants, taxpayers, businesses or regulated entities dealing with this specific filing or compliance requirement.
Documents and records normally kept ready
- Patent number(s) and patentee/licensee details
- Relevant financial-year information
- Working / non-working status
- Reasons where not worked
- Licensing availability particulars where applicable
- Authorised signatory / agent details
Practical filing / compliance flow
- Identify the patent(s) covered and reporting financial year.
- Compile accurate worked / not-worked information.
- State reasons and licensing information where the current form requires it.
- Sign and file through the applicable patent e-filing route.
- Keep working evidence and acknowledgement.
Important conditions and checks
- Use the current Form 27 format and reporting period.
- Do not state commercial working without supportable records.
- Related patents may be grouped only where the current form/rules permit.
Current-law note
IP India identifies Form 27 as the statement regarding working of patented invention(s) on a commercial scale in India under section 146(2) and rule 131. Check the current reporting cycle and form before filing.
Common mistakes to avoid
- Using an old form name or filing route without checking the current portal.
- Submitting figures or particulars that do not reconcile with underlying records.
- Missing the response or filing period applicable to the exact notice, return or statutory event.
- Keeping only the acknowledgement and not the supporting documents or signed authority records.
Official reference
Verify current portal instructions, notifications, due dates and fees before filing.
Practical preparation workflow
- Confirm that Patent Form 27 – Statement of Working of Patented Invention – Complete Guide is the correct filing, statement, application or compliance route for the entity and the relevant period.
- Reconcile the underlying books, registers, declarations, challans, approvals or source records before entering data into the portal.
- Check names, registration numbers, dates, reporting period and attachments against the master records. Avoid copying an older filing without checking whether the facts or portal fields have changed.
- Preview the completed filing before submission and retain the acknowledgement, payment/challan record and a complete copy of what was filed.
Records to reconcile
The exact attachment requirement depends on the facts and the current portal. As a working file, keep the following records together and reconcile them before submission:
- Patent number(s) and patentee/licensee details
- Relevant financial-year information
- Working / non-working status
- Reasons where not worked
- Licensing availability particulars where applicable
- Authorised signatory / agent details
Review after filing
A successful upload does not by itself prove that every underlying compliance requirement has been satisfied. Preserve the acknowledgement and filing copy, update the organisation's compliance calendar or statutory records where relevant, and watch the portal/email for any defect, clarification, notice or status change. If a correction is required, use the current correction, amendment or reply mechanism rather than altering supporting records merely to match an earlier filing.
Current-source check
Portal fields, filing frequency, fees, due dates and administrative practice can change. Before acting, re-check the live guidance of IP India – Patent Form 27 for the exact period and facts. This guide is designed to help organise the records and understand the filing context; it does not replace the live statutory form, portal instructions or case-specific professional review.