Rule 19I of the Patents Rules, 2003
Manner of making a demand
Rule 19I sets out how a demand for international preliminary examination must be prepared and filed with the Indian authority.
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
Rule 19G says when a demand must be filed. Rule 19I says how. The demand is made in the form prescribed under the Treaty, filed with the Indian office in its capacity as International Preliminary Examining Authority, in the language required, and signed by the applicant or by an authorised agent. It is not an ordinary letter, and it is not one of the Indian forms used for domestic filings. It is the Treaty's own form, and the authority is entitled to insist on it.
The content is largely identification. The demand must identify the applicant and the agent, the international application by its number and international filing date, and the title of the invention. It must indicate the basis on which the examination is to be carried out, which is where amendments come in. Under Article 34 of the Treaty an applicant may amend the description, claims and drawings before the examination begins, and those amendments, together with a letter explaining what was changed and why, are normally filed with the demand. If claims were already amended after the search report, the demand must make clear which set of claims the examiner is to work from.
Getting that right avoids the single most common problem in Chapter II, which is an examiner working from the wrong text. If the papers do not make plain which version of the claims is the live one, the report may address claims the applicant abandoned weeks earlier, and the time spent producing it is wasted on both sides.
Two formal points deserve attention. First, filing at the right place matters: a demand submitted somewhere other than the competent authority may be transmitted onwards, but the date and the consequences depend on the Treaty machinery rather than on goodwill, so it is safer to file correctly the first time. Second, signature and authority matter. Where an agent signs, the authority must be properly on record. Where there are joint applicants, follow the Treaty's requirements about who must sign.
Finally, treat the demand as a package rather than a form. In one submission you should have the completed demand, any Article 34 amendments with an explanatory letter, confirmation that the preliminary examination fee and the handling fee are being paid, and a clear statement of the elections. Sending the pieces on different days across a deadline is how applicants lose Chapter II by accident.
Why this rule matters
Applicants and agents preparing a Chapter II demand in India, including those filing amendments under Article 34 at the same time.
At the point the applicant decides to use international preliminary examination, within the period allowed by Rule 19G.
A prescribed manner and place for making a demand, and a duty to identify the application, the applicant and the text to be examined.
A defective demand attracts an invitation to correct it, is examined against the wrong claim set, or in the worst case is treated as not made.
How it works in practice
The examiner who worked from the wrong claims
Devakiri Instruments LLP of Vadodara amended its claims once after receiving the international search report, narrowing them to a specific sensor arrangement. Two months later it filed a demand for preliminary examination and attached a further set of amended claims under Article 34, but the covering letter did not say which set replaced which, and the demand itself was silent on the basis of examination. The examiner, faced with three claim sets on file, worked from the earliest amended set. The report that came back addressed claims the firm had already abandoned and said nothing about the arrangement it actually wanted protected. Correcting the record consumed weeks the firm did not have before its national phase deadlines. The fix would have taken ten minutes at the outset: a demand that stated the basis of examination clearly and a letter that identified each amendment by page, line and the claim it replaced.
Simplified illustration only. Actual legal outcomes depend on the facts.
Key points to remember
- The demand is made in the form prescribed under the Treaty, not on an Indian domestic form.
- It is filed with the competent examining authority, in the required language, and signed by the applicant or an authorised agent.
- It must identify the applicant, the agent, the international application and the invention.
- It should state clearly which text of the claims the examination is to be based on.
- Amendments under Article 34 are usually filed with the demand, accompanied by a letter explaining them.
- File the demand, the amendments and the fees together as one package, well before the deadline.
Common mistakes and misunderstandings
- Filing amendments without saying which earlier claim set they replace, so the examiner works from the wrong text.
- Assuming a domestic Indian form can be used. The Treaty form is required for the demand.
- Splitting the demand, the amendments and the fee payment across several days near the deadline.
Connected provisions
Because this page covers a rule rather than a section, the related Act provisions are shown in their own list. The section tells you what the law requires. The rule, explained above, tells you how the Patent Office expects that requirement to be met.
Forms, deadlines and fees
- The demand must be filed within the period fixed by Rule 19G, and any amendments intended to form the basis of the examination should be filed with it rather than later.
Open the deadline calculator — and have every date confirmed against the current Rules before you rely on it.
We do not publish fee amounts. The First Schedule sets them, and they differ by category of applicant, such as a natural person, a startup, a small entity or another applicant, and by the mode of filing. Check the Schedule currently in force before you calculate anything. 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 19I
Which form is used for a PCT demand in India?
The demand is made on the form prescribed under the Patent Cooperation Treaty for demands to an International Preliminary Examining Authority, not on one of the Indian forms used for domestic applications. It is filed with the competent authority, in the language required for that application, and signed by the applicant or an agent whose authority is on record. Along with it you would normally file any amendments under Article 34, an explanatory letter and confirmation that the required fees are being paid.
Can I amend my claims when filing the demand?
Yes. Article 34 of the Treaty allows an applicant to amend the description, claims and drawings before the international preliminary examination begins, and doing so with the demand is normal practice. The amendments must not add matter beyond the disclosure of the application as filed. File them with a letter that identifies exactly what has changed, where, and why, and make clear which earlier version each amendment replaces so the examiner works from the right text.
What happens if my demand has a defect?
Most defects lead to an invitation from the authority to correct them within a stated period, and the demand survives if you comply promptly. Serious problems, such as a demand filed by someone not entitled to make it or fees left unpaid after an invitation, can result in the demand being treated as not submitted. Because these communications are sent to the address on record and the periods are short, keep your contact details current and check for correspondence during the international phase.
Preparing a Chapter II demand and amendments?
MYCrave Consultancy drafts the demand, the Article 34 amendments and the explanatory letter as one clean filing.
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.