Rule 27 of the Patents Rules, 2003
Inspection and supply of published documents
Opens the file of a published application to public inspection and allows copies of its documents to be obtained on payment of the prescribed fee.
Official legal text
The verbatim statutory text of this provision is reproduced from the official source and checked by our legal reviewer before it is published here. Until that check is complete for this page, read the exact wording directly from the official source linked below — it is the only version that governs.
Nothing here replaces the statute. The official wording of the provision, together with any Gazette notification that applies to it, governs. This page only explains that material in ordinary language.
What this rule requires, step by step
Before publication, a patent application is confidential. Nobody outside the office is entitled to see it, and the Act protects that confidentiality. Publication reverses the position, and Rule 27 works out what that reversal means in practice: from the date of publication, the application and the documents relating to it may be inspected, and copies may be obtained on payment of the prescribed fee.
What becomes available is the technical and procedural substance of the case. That includes the complete specification, the provisional specification if one was filed, the drawings, the abstract and documents connected with the application. In modern practice most of this is available through the office's online systems, so an inspection request in person is needed less often than it used to be, but the right of inspection is what makes the online availability possible.
Access is not unlimited. Documents connected with an application subject to a secrecy direction remain closed. The Act treats examiners' reports as confidential documents, and inspection of documents relating to the grant of a patent is dealt with by a separate rule that applies after grant. Certified copies, as opposed to plain copies, are supplied under the rule dealing with certified copies and certificates.
The people who use this right are not only competitors. Prospective licensees check what a licensor actually filed. Investors verify a startup's portfolio claims. Opponents preparing a pre-grant opposition need the specification and the file history. Freedom to operate reviews depend on reading pending applications, because a pending application can turn into an enforceable patent later. Researchers and students use published specifications as technical literature.
For applicants the lesson runs the other way. Everything filed after publication is potentially visible, including responses to examination reports and the arguments made about the scope of the claims. Statements made to the office to overcome prior art can be read later by anyone assessing the patent, so responses should be accurate and carefully worded.
Why this rule matters
Competitors, prospective licensees, opponents, investors, researchers and any member of the public.
From the date the application is published until and beyond grant.
A public right to inspect published applications and obtain copies on payment of the prescribed fee.
Businesses launch products without checking pending applications, and applicants file careless responses that are later read against them.
How it works in practice
A freedom to operate check before a product launch
A Ludhiana bicycle manufacturer plans to launch a folding frame hinge. Before tooling up, its adviser searches published Indian applications in the field and finds two pending applications from a Delhi competitor covering hinge geometries. Because both are published, the adviser inspects the files and obtains copies of the specifications and the responses filed during examination. One application has claims narrowed during examination to a specific locking cam that the Ludhiana design does not use, and the response on file expressly distinguishes the prior art on that cam. The second application is still broad but the file shows an examination report objecting to the same feature. The manufacturer proceeds with a design that avoids the cam, documents the analysis, and keeps both applications under watch until they are granted or refused. Without the right of inspection, the company would have been guessing about the scope of two live applications.
Simplified illustration only. Actual legal outcomes depend on the facts.
Key points to remember
- Confidentiality ends at publication; before that the file is closed to the public.
- The specification, drawings, abstract and related documents can be inspected and copied on payment of the prescribed fee.
- Most material is now available through the office's online systems.
- Files under a secrecy direction stay closed, and some categories of document are treated separately.
- Inspection supports freedom to operate reviews, opposition, licensing and due diligence.
- Applicants should assume that everything they file after publication can be read by anyone.
Common mistakes and misunderstandings
- Assuming that only granted patents matter. A published pending application can become an enforceable patent covering the product you are about to launch.
- Reading the claims as originally filed and ignoring amendments made during examination, which often narrow the scope considerably.
- Treating an inspected copy as a certified copy. Certified copies are supplied under a separate rule and are what courts and foreign offices require.
Connected provisions
Rules are made under the Act, not alongside it. That is why the connected sections appear in a block of their own. Reading the section tells you why the procedure exists, and reading the rule tells you the steps, forms and periods that put it into effect.
Forms, deadlines and fees
Fees are prescribed in the First Schedule to the Patents Rules. Because the Schedule is revised from time to time, and charges different amounts to different categories of applicant and for physical as against electronic filing, this page describes the fee without stating a figure. How Indian patent fees work.
Related judgments
Case summaries are published only after a qualified reviewer has checked the judgment, the citation and the way the holding is described. Nothing has cleared that review for this provision yet, so nothing is listed here. We would rather show no case note than one that misstates what a court decided. How case notes are prepared.
Questions people ask about Rule 27
Can I see a patent application before it is published?
No. Until publication the application is confidential and the office does not open it to the public. That confidentiality is part of the bargain that lets an applicant test the market and decide whether to continue before disclosing the invention. The only people who can see the file during that period are the applicant, the applicant's agent, and officers of the Patent Office dealing with it, along with any person the applicant authorises.
How do I obtain copies of documents from a published file?
Apply to the appropriate office with the application number and a clear description of the documents you want, and pay the prescribed fee. Many documents can be viewed or downloaded directly through the office's public systems without a formal request. If you need copies for use in court, before a foreign patent office or in a transaction, ask for certified copies, which are issued under the separate rule dealing with certified copies and carry the office's authentication.
Does inspection let me see the examiner's report and the applicant's reply?
The Act treats reports of examiners as confidential documents, and inspection of documents relating to the grant of a patent is governed by a separate rule that operates after grant. In practice a good deal of prosecution material for published applications is visible through the office's electronic systems, and it is routinely used in opposition and due diligence. If a specific document matters to your matter, check what is currently accessible rather than assuming either extreme.
Is there any way to keep my file confidential after publication?
Not in the ordinary course. Publication is designed to make the disclosure public, and inspection follows from it. The only situation in which a file stays closed is where a secrecy direction applies because the invention is relevant for defence purposes. If confidentiality is essential to your business, the decision has to be made before publication, either by withdrawing the application in time or by never filing and relying on trade secret protection instead.
Need to read what a competitor has actually filed?
MYCrave Consultancy inspects published Indian files and reports on claim scope, prosecution history and launch risk.
You will be speaking with MYCrave Consultancy & Services, the firm that operates this platform. General questions are answered free; matter‑specific work is quoted before anything is done.