Patent Office explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Once a request for examination is on file and the application is published, the Controller refers it to an examiner. Paragraphs 09.02, 09.03.01 and 09.03.02 of the Manual describe the order of reference, the examination groups, what the search covers and how novelty is decided.
Applications are taken up in the order requests were filed and sent to an examiner by technical group. The examiner searches the Indian patent database from 1912 and other patent and non-patent sources, and records the search strategy. An invention is novel if the prior art, meaning everything published, presented or disclosed before the filing or priority date, does not contain all its features. Documents cannot be combined to destroy novelty. The Manual is the Patent Office's guidance and does not have the force of law; the Patents Act, 1970 and the Patents Rules, 2003 as now in force prevail.
Check the current Manual on ipindia.gov.in. The statutory basis is section 12, section 13 and sections 29 to 31. A patent search and prior art study before filing aims to meet this same test first.
Reference to the examiner (09.02)
Once a request is received and the application is published, the application is taken up in chronological order of requests, and the Controller refers it to an examiner in that order. A further application under section 16 is referred in the same order as the first application, and if the first has already been referred, the further application needs its own request for examination, is published within one month and is referred within one month after publication.
The Manual says there are four examination groups: chemistry and allied subjects, biotechnology and microbiology, electrical and electronics, and mechanical and other subjects. The periods it gives for each step in an ordinary request are short in text: reference ordinarily within one month, the examiner's report ordinarily within one month but not beyond three, disposal of the report by the Controller ordinarily in one month, and the first statement of objections within one month after that. These periods are as the Manual prints them; the rule post on rule 24B governs and was amended in 2024. Where a person interested filed the request, the applicant receives the report and the person interested only an intimation.
The search (09.03.01)
The examiner searches the Indian patent database from 1 January 1912 and the other available patent and non-patent databases, and the PCT minimum documentation. The search has two objects:
- to find any publication that may anticipate the claimed subject matter; and
- to find whether any claim of the complete specification has been claimed in a claim of another complete specification filed in India, published on or after the applicant's filing date, and either dated before or claiming an earlier priority date (prior claiming).
The search is made with respect to the filing date of the complete specification. The examiner records:
- the International Patent Classification;
- the search strategy and keywords used;
- the patent and non-patent databases consulted;
- prior art findings and analysis on patentability; and
- any limit on the search, such as unclear claims or several inventions, that prevented a reasonable search.
The last item explains why unclear or multiple-invention claims draw an objection before novelty is even reached: see claims, unity and clarity.
How novelty is decided (09.03.02)
| Principle in the Manual | What it means for the applicant |
|---|---|
| Novel if not anticipated by prior publication in patent and non-patent literature | Prior art is everything published, presented or otherwise disclosed to the public before the filing or priority date |
| Novel if not anticipated by prior use or public knowledge in India | Use or knowledge in India counts, apart from publications |
| Prior claiming | An earlier Indian application, published after the later application's filing date, is considered for prior claiming |
| Documents considered | Specifications published in India on or after 1 January 1912; earlier-filed Indian applications published on or after the later filing date that claim the same subject matter |
| Other investigation | Anticipation by publication in India or elsewhere in any other document before the filing date |
| Anticipation | All features of the invention are present in the cited document |
| Explicit or implicit disclosure | The prior art may disclose the invention explicitly or implicitly |
| No mosaicing | Documents cannot be combined to decide novelty |
| Generic and specific | A generic disclosure does not necessarily destroy novelty of a specific one (the Manual's example is a metal spring and a copper spring); a specific disclosure destroys novelty of a generic one |
| Onus | Where a document is cited as an anticipation, the onus of showing that sections 29 to 34 save the invention lies on the applicant |
The grace period
The reference to sections 29 to 34 matters. The Manual treats the onus as lying on the applicant where an exception such as prior communication or display is claimed. The Patents Rules were amended in 2024 to add rule 29A, a grace period application on Form 31; read the rule 29A post, which prevails over the Manual's older description.
How the objection is framed and answered
| Examiner's finding | Typical reply |
|---|---|
| Document D1 discloses all features of claim 1 | Show a feature of claim 1 that D1 does not disclose, explicitly or implicitly; amend claim 1 to include it, if the specification supports it |
| D1 and D2 combined are said to anticipate | Novelty is tested against a single document; the combination argument belongs to inventive step |
| Generic prior disclosure against a specific claim | Show that the claim is to a specific form, which the generic disclosure does not take away |
| Specific prior disclosure against a generic claim | Narrow the claim to what remains novel |
| Earlier Indian application claims the same matter | Compare the claims and priority dates; amend or show a different priority date |
| The applicant's own earlier disclosure | Rely on the statutory exceptions or rule 29A, with proof |
Worked example
Kiran Polymers Pvt Ltd claims "a filter with a copper spring" in claim 1 and "a filter with a metal spring" in claim 3. The examiner cites one document disclosing a filter with a metal spring. Under the Manual's approach, that generic disclosure does not necessarily remove the novelty of claim 1, so the applicant answers that claim 1 is specific. Had the document disclosed a filter with a copper spring, that specific disclosure would have taken away the novelty of the generic claim 3 as well as claim 1, and the applicant would then have had to narrow the claims by adding a feature that the document does not show.
Need help with search and novelty?
A good search before filing finds the document the examiner will cite. Our patent search and prior art team can map your claims against patent and non-patent literature and advise on the claim scope that remains novel.
Key takeaways
- Applications are referred to examiners in the order requests were filed, by technical group.
- The search covers Indian patents from 1912, patent and non-patent literature and PCT minimum documentation, and covers prior claiming.
- Novelty requires that no single document discloses all features; mosaicing is not allowed for novelty.
- A specific disclosure destroys a generic claim, but a generic disclosure does not necessarily destroy a specific claim.
- The Act and Rules as now in force prevail over the Manual, including the 2024 rule 29A.
Read next
- Chapter 9: expedited examination
- Chapter 9: inventive step
- Chapter 9: the examiner's report and reply
- Rule 29A: grace period application
Disclaimer: Based on the manuals and guidelines published by the Office of the Controller General of Patents, Designs and Trade Marks that are named in the article, as consulted on 4 October 2026. They are guidance and do not have the force of law; the Patents Act, 1970 and the Patents Rules, 2003 as amended (including the 2024 amendment rules) prevail, and the current versions on ipindia.gov.in should be checked. This article is general information, not legal advice; check the official text before acting.