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Intellectual Property Rights - Law and Practice · Patent Documentation, Examination and Infringement

Request for Examination under Section 11B of the Patents Act

Updated 11 October 2026 · Fact-checked

Under Section 11B of the Patents Act, 1970, no patent application is examined unless the applicant or any other interested person files a request for examination, in the prescribed manner and within the prescribed period. If no request is made in time, the application is treated as withdrawn by the applicant.

Understand Request for Examination under Section 11B

A patent application does not move to examination on its own. Filing the application only starts the process. To get it examined, someone must ask for it. That ask is the request for examination.

Section 11B(1) says no application shall be examined unless the applicant or any other interested person makes the request in the prescribed manner within the prescribed period. So the right to request is not limited to the applicant. An interested person can also file it.

The Act does not fix the manner or the period in Section 11B itself. Both are left to the Rules. Section 159(2)(id) empowers the Central Government to make rules on the manner of making the request and the period within which it must be made under Section 11B(1) and (3). In your answer, say the period is "as prescribed" and add that it is set by the Patent Rules.

The consequence of silence is serious. Under Section 11B(4), if no request is made within the period, the application shall be treated as withdrawn by the applicant. The deadline is therefore a hard gate before substantive examination.

There are two special points. First, the applicant may withdraw the application at any time after filing but before grant, by a request in the prescribed manner. Second, if a secrecy direction has been issued under Section 35, the request may be made within the prescribed period from the date of revocation of that direction.

Once a request is made, Section 12 takes over. The Controller refers the application, specification and related documents to an examiner at the earliest, who reports on the matters listed in Section 12(1).

Key rules to remember

Rule of Section 11B(1)
No examination without a request by the applicant or any other interested person, in the prescribed manner, within the prescribed period
Manner and period are prescribed by rules, not stated in the section.
Consequence of default, Section 11B(4)
No request within the period ⇒ application treated as withdrawn by the applicant
Applies to the period under sub-section (1) or (3).
Proviso (i) to Section 11B(4)
Applicant may withdraw at any time after filing but before grant, by request in the prescribed manner
Voluntary withdrawal is separate from deemed withdrawal.
Proviso (ii) to Section 11B(4)
Secrecy direction under Section 35 ⇒ request within the prescribed period from the date of revocation of the direction
The time runs from revocation.
Rule-making power, Section 159(2)(id)
Central Government prescribes the manner of the request and the period under Section 11B(1) and (3)
Use this to explain why the section refers to the "prescribed" period.
Link to Section 12(1)
Request made ⇒ Controller refers the application to an examiner at the earliest
The examiner reports on compliance, grounds of objection, Section 13 search results and prescribed matters.

How to solve Request for Examination under Section 11B questions

Use this method for any written question on request for examination, whether it is a theory note or a fact-based problem.

  1. 1State the rule: no application is examined unless a request is made under Section 11B(1).
  2. 2Identify who made or may make the request: the applicant or any other interested person.
  3. 3Check the manner and period: say both are prescribed by rules, and cite Section 159(2)(id) for the rule-making power.
  4. 4Apply the facts: was the request made within the prescribed period? Look for any Section 35 secrecy direction or an earlier withdrawal.
  5. 5State the consequence: if no timely request, the application is treated as withdrawn under Section 11B(4).
  6. 6Add the next step: if a request is made, the Controller refers the application to an examiner under Section 12.
  7. 7Conclude clearly in one line, and add a practical point such as diarising the deadline.

Quickest way: Four-point recall for Section 11B

When to use it: Use it for short notes and for the first paragraph of a case answer when time is short.

  1. Who: applicant or any other interested person.
  2. How and when: in the prescribed manner and within the prescribed period.
  3. What if not: treated as withdrawn by the applicant.
  4. Exceptions: voluntary withdrawal before grant, and request within the prescribed period from revocation of a Section 35 secrecy direction.

Common mistakes in Request for Examination under Section 11B

  • Writing that only the applicant can file the request.

    Students assume the applicant controls the whole process.

    Fix: Quote the words "the applicant or any other interested person" from Section 11B(1).

  • Stating a specific number of months as the time limit in the section.

    Memorised from the Rules and wrongly attributed to the Act.

    Fix: Say the period is prescribed. Attribute it to the rules made under Section 159(2)(id).

  • Saying a late application is rejected or refused.

    Confusion with refusal after examination.

    Fix: Use the Act's words: the application is treated as withdrawn by the applicant.

  • Forgetting the secrecy direction proviso.

    It sits in a proviso and is easy to skip.

    Fix: If facts mention Section 35, say the period runs from the date of revocation of the direction.

  • Treating filing of the request as the examination itself.

    The two steps are merged in memory.

    Fix: The request only triggers referral to an examiner under Section 12. The examiner's report follows.

Worked examples

Example 1

Anika Textiles Pvt. Ltd. filed a patent application in India. Its R&D head believes the Patent Office will examine the application automatically. Advise the company.

Show the solution
  1. Rule: Section 11B(1) says no application shall be examined unless a request for examination is made in the prescribed manner within the prescribed period.
  2. Application: Filing alone does not start examination. The company or any other interested person must file the request.
  3. Time: The period is prescribed by rules under Section 159(2)(id). The company must diarise it.
  4. Consequence: Under Section 11B(4), if no request is made in time, the application is treated as withdrawn by the applicant.
  5. Next step: Once a request is made, the Controller refers the application to an examiner under Section 12.

Answer: The belief is wrong. Examination does not happen automatically. The company must file a request in the prescribed manner and period, failing which the application is treated as withdrawn.

Example 2

Ravi Pharma filed a patent application. A secrecy direction was issued under Section 35. It was later revoked. Can Ravi Pharma request examination after the revocation, and within what time?

Show the solution
  1. Rule: Section 11B(1) requires a request for examination within the prescribed period before examination can take place.
  2. Special case: Proviso (ii) to Section 11B(4) covers a secrecy direction issued under Section 35.
  3. Application: The request may be made within the prescribed period from the date of revocation of the direction.
  4. Conclusion: The time is counted from the revocation date, not from the original period alone.

Answer: Yes. Ravi Pharma may file the request within the prescribed period from the date of revocation of the secrecy direction. If it does not, Section 11B(4) treats the application as withdrawn.

Exam tips

  • Quote the key phrases: "applicant or any other interested person" and "treated as withdrawn by the applicant".
  • Never invent the number of months. Say "prescribed period" and cite Section 159(2)(id) for the rule-making power.
  • In case questions, check for a Section 35 secrecy direction or a voluntary withdrawal before grant.
  • Link the answer to Section 12 to show you know the sequence: request, referral, examiner's report.

Practice questions from Patent Documentation, Examination and Infringement

Request for Examination under Section 11B: frequently asked questions

Who can file a request for examination under Section 11B?

The applicant or any other interested person can file it. The request must be in the prescribed manner and within the prescribed period.

What happens if the request is not filed in time?

Under Section 11B(4), the application is treated as withdrawn by the applicant. The Act does not call it a refusal.

Where is the time limit for the request fixed?

Section 11B refers to the prescribed period. The rules fix it, under the rule-making power in Section 159(2)(id).

Does the request for examination mean the patent will be granted?

No. It only gets the application referred to an examiner under Section 12. The examiner reports on compliance and grounds of objection, and grant depends on the later steps.