Rule 19K of the Patents Rules, 2003
International preliminary examination report
Rule 19K requires the Indian examining authority to issue a reasoned report on whether each claim appears novel, inventive and industrially applicable.
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.
Read this as a plain-language summary. If it and the official text, or a relevant Gazette notification, say different things, the official text and the notification are what count.
What this rule requires, step by step
The international preliminary examination report is the product of Chapter II. Rule 19K requires the Indian authority, once it has examined the application and considered the applicant's replies and amendments, to establish that report in the form and with the content the Treaty requires. In the current international vocabulary it is published as an international preliminary report on patentability under Chapter II, which is a long name for a short idea: a considered opinion, claim by claim, backed by reasons.
The report answers three questions for each claim. Does the claimed invention appear to be new over what was already available to the public? Does it appear to involve an inventive step, meaning it is not obvious to a person skilled in that field? Is it capable of industrial application? Where the answer to any of these is no, the report says so and cites the documents and reasoning relied on. Where a claim falls in a category on which the authority is not required to give an opinion, the report records that instead of guessing.
Two limits define its legal weight. First, the report contains no statement on whether the invention is patentable under the law of any country, and it cannot. Patentability is national. India, for example, applies Section 3, which excludes a long list of subject matter that other countries may treat quite differently, and the Controller examines the case afresh under Sections 12 and 13 with the timelines in Rule 24B. Second, the report binds nobody. It is evidence of a skilled examiner's view, not a decision.
Within those limits, it is a valuable document. Amendments made during the examination are annexed to the report, so the record shows precisely what text the opinion relates to. National examiners read it. Investors and licensees increasingly ask for it, because a favourable report from a competent authority is one of the few objective signals available before grant. A negative report is useful too, in a harder way: it tells the applicant what every national examiner is likely to raise, early enough to do something about it.
Confidentiality follows the Treaty's rules. The report does not stay private forever; it becomes available to the elected offices and, in due course, to the public. So it is worth remembering while drafting replies that whatever you say to the examining authority may eventually be read by a competitor considering an opposition or a revocation action in India.
Why this rule matters
Applicants completing Chapter II, national examiners who later read the file, and investors or licensees assessing the strength of an application.
At the end of the international preliminary examination, before national phase entries fall due.
An obligation to produce a reasoned, claim-by-claim opinion with citations, and annexes showing the amended text it relates to.
An applicant who does not read the report enters national phases without knowing which claims are already flagged as weak.
How it works in practice
A report that changed a licensing conversation
Neelima Sharma, who runs a two-person design firm in Jaipur, completed international preliminary examination on a folding water storage tank for rural households. The final report found claim 1 novel and inventive over the four documents cited during the process, gave reasons, and annexed the amended claims she had filed under Article 34. It also recorded that no opinion was given on one claim directed at a method of treatment, which she had already deleted. When a manufacturer approached her about a licence, its technical team asked what evidence there was that the design was genuinely new. Neelima sent the report. It was not a patent and she said so plainly, but it was an independent examiner's reasoned view, with the citations attached. The manufacturer's own patent counsel accepted it as a reasonable basis for negotiating, and the licence discussion moved to commercial terms months before any national office had granted anything.
Simplified illustration only. Actual legal outcomes depend on the facts.
Key points to remember
- The report gives a claim-by-claim opinion on novelty, inventive step and industrial application, with reasons and citations.
- It is published as an international preliminary report on patentability under Chapter II.
- It contains no statement on patentability under any national law and binds no office.
- Claims in categories the authority need not examine are recorded as such rather than assessed.
- Amendments made during the examination are annexed, so the report is tied to a specific text.
- It becomes available to elected offices and, in time, to the public.
- A favourable report carries real commercial weight with investors and licensees, even though it is not a grant.
Common mistakes and misunderstandings
- Describing a favourable report as an international patent. No such thing exists; only national offices grant patents.
- Assuming the Indian Controller will simply follow the report. India examines afresh and applies Section 3, which has no international counterpart.
- Forgetting that everything said during the examination may later be read by an opponent in Indian opposition or revocation proceedings.
Connected provisions
Rules and sections are cited differently and amended differently. On a rule page the connected sections are therefore kept in a separate list, so that a reader quoting this material can attribute each requirement to the correct instrument.
Forms, deadlines and fees
- The report must be established within the period fixed by Rule 19L, so any final amendments or arguments must reach the authority comfortably before that date.
Open the deadline calculator — and have every date confirmed against the current Rules before you rely on it.
Where a fee is payable under this provision, the figure comes from the First Schedule. Categories of applicant are charged at different rates, and electronic filing is treated differently from paper filing, so an accurate number can only come from the Schedule in force on the day you file. How Indian patent fees work.
Related judgments
Court decisions shape how this provision is applied, but a summary is useful only if it is right. Every case note on this site is read by a legal reviewer before it goes live, and none has been completed for this provision so far. This section will fill in as those reviews finish. How case notes are prepared.
Questions people ask about Rule 19K
What is an international preliminary report on patentability?
It is the written outcome of international preliminary examination. It states, for each claim, whether the invention appears to be new, to involve an inventive step and to be capable of industrial application, and it gives reasons and cites the documents relied on. Amendments made during the examination are annexed so the opinion is tied to a specific text. Despite the name, it decides nothing about patentability in any particular country, and no office is bound to agree with it.
Does a positive report mean I will get an Indian patent?
No. When the application enters the Indian national phase the Controller examines it independently under Sections 12 and 13, following the timelines in Rule 24B, and applies Indian law in full. That includes Section 3, which lists subject matter that is not an invention in India and has no direct equivalent in the international examination. A favourable report often shortens prosecution because the prior art has already been argued through, but it creates no right to grant.
Can I use the report to attract investors or licensees?
Many applicants do, and used honestly it is a legitimate signal. It is an independent, reasoned view from an examiner who has searched the art, and it usually arrives long before any patent is granted. Be accurate about what it is. Never present it as a granted patent or as a guarantee that one will follow, because that risks misleading an investor and can create problems of its own. Share the full report, annexes included, rather than a selected line.
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