Topic 145 — Patent Prosecution Workshop

PATENT PROSECUTION is the process of getting a patent application from FILING to GRANT through interaction with the Indian Patent Office (IPO). Once filed, the application enters examination — typically receiving a FIRST EXAMINATION REPORT (FER) under Rule 24B(3) Patents Rules. The applicant must respond comprehensively within 6 months (extendable by 3 months under Rule 24B(6) on Form 4). Successful prosecution requires understanding the FER STRUCTURE (typically four parts: Section 14 + 15 examination; novelty; inventive step; Section 3 + 4 exclusions; formal objections), preparing PERSUASIVE RESPONSES, navigating PRE-GRANT OPPOSITIONS (Section 25(1)) and POST-GRANT OPPOSITIONS (Section 25(2)), and handling HEARINGS effectively. The 2024 Patents Rules introduced critical changes: REQUEST FOR EXAMINATION (RFE) reduced to 31 months (from 48); FORM 3 SINGLE SUBMISSION within 3 months of FER; PRE-GRANT OPPOSITION fees (₹4,000 / ₹20,000) and prima facie screening; POST-GRANT OPPOSITION fee ₹40,000; OPPOSITION BOARD timeline reduced to 2 months. Key prosecution principles: ADDRESS EVERY ADVERSE FINDING — one unanswered finding can prevent grant; use ARGUMENTS + CLAIM AMENDMENTS strategically; build the STRONGEST POSSIBLE PROSECUTION RECORD from first response. Recent cases shape prosecution: Vishal Solanke (2025:BHC-OS:4952) — pre-grant opposition + examination distinct tracks; Novartis v. Natco (LPA 50/2023) — distinct examination/opposition processes; Open TV v. Controller (2023) — single valid ground sufficient for refusal. CRI Guidelines 2025 framework: three-step test (identify invention → technical contribution → Section 3(k) assessment). Section 59 STRICT amendment framework: no new matter beyond original specification. The PROSECUTION RECORD becomes the foundation for any subsequent post-grant opposition or revocation. This topic walks through every aspect of patent prosecution — FER response strategy, claim amendments, opposition handling, hearings, and 2024 Rules compliance.

1. Patent Prosecution — Foundational Framework

A. The Prosecution Lifecycle

✅ Patent Prosecution Lifecycle

1. FILING · Patent application + specification. · Form 1, 2, 3, 5; fees. 2. PUBLICATION (Section 11A) · Automatic at 18 months from priority date. · Triggers pre-grant opposition window. 3. RFE (Section 11B + Rule 24B/C) · Within 31 months (post-2024). · Form 18 (standard) or Form 18A (expedited). 4. EXAMINATION · Examiner findings. · FER issued by Controller within 1 month. 5. FER RESPONSE · 6 months + 3 month extension. · Address all adverse findings. 6. SUBSEQUENT EXAMINATION REPORTS (SER) · If outstanding objections. · Within remaining 9-month window. 7. HEARING (Section 14) · Where written response insufficient. · Oral arguments. 8. GRANT OR REFUSAL · Grant — proceed to renewal. · Refusal — appeal to HC IP Division (Section 117A). 9. PRE-GRANT OPPOSITION (Section 25(1)) · At any time before grant. · Prima facie screening (2024 Rules). 10. POST-GRANT OPPOSITION (Section 25(2)) · Within 12 months of grant publication. · Person interested only.

2. First Examination Report (FER) Anatomy

A. Standard Four-Part Structure

Part	Content
Part 1	Bibliographic details + filing history + procedural status.
Part 2	Substantive examination findings (novelty, inventive step, Section 3 exclusions).
Part 3	Formal objections (specification format, drawings, abstract).
Part 4	Section 8 compliance (foreign filing disclosure).

B. Common FER Objections

✅ Top 10 FER Objections

1. NOVELTY (Section 2(1)(j) + Section 13) · Cited prior art destroys novelty. · Need to distinguish or amend. 2. INVENTIVE STEP (Section 2(1)(ja)) · Obvious to person skilled in art. · Need to demonstrate inventive contribution. 3. SECTION 3(d) — pharmaceutical evergreening · New form lacking enhanced efficacy. · Need therapeutic efficacy data. 4. SECTION 3(k) — software/algorithm · Pure software not patentable. · Need technical effect (CRI Guidelines 2025). 5. SECTION 3(j) — plants/animals · Biological materials. · Need to show microorganism or technical process. 6. SECTION 3(i) — methods of treatment · Medical methods not patentable. · Need to claim apparatus or substance instead. 7. SECTION 10(4) SUFFICIENCY · Insufficient disclosure. · Need additional embodiments/examples. 8. SECTION 10(5) UNITY OF INVENTION · Multiple inventions claimed. · Need to file divisional application. 9. SECTION 8 NON-COMPLIANCE · Foreign filing not disclosed. · File updated Form 3. 10. FORMAL OBJECTIONS · Drawings, format, abstract issues. · Address per Rule 13 + 15.

3. FER Response Strategy

A. The Response Workflow

✅ FER Response Workflow

1. RECEIVE FER + Diarise deadlines · Response: 6 months from FER date. · Form 4 extension: 3 additional months. · Form 3 update: 3 months from FER date (independent). 2. ANALYZE EACH OBJECTION · Categorize: substantive vs. formal. · Identify cited prior art. · Determine response strategy. 3. CONSULT INVENTORS · Technical clarifications. · Distinguishing features. · Additional embodiments. 4. PRIOR ART REVIEW · Read cited references carefully. · Identify weaknesses in citations. · Consider new prior art if needed. 5. DRAFT ARGUMENTS · Address every adverse finding. · Use technical reasoning. · Cite relevant case law. · Be persuasive but accurate. 6. CLAIM AMENDMENTS (if needed) · Section 59 strict — no new matter. · Narrow claims to distinguish. · Add fallback dependent claims. · Ensure antecedent basis. 7. EVIDENCE FILING · Affidavits (technical experts). · Comparative data. · Commercial success. · Long-felt need. 8. FILE RESPONSE + ANY EVIDENCE · Form 13 (amendments). · Within deadline. 9. REQUEST HEARING (if needed) · Section 14. · Where written alone insufficient.

B. Section 59 — Amendment Limitations

Section 59 Patents Act 1970

"59. Supplementary provisions as to amendment of application or specification.—(1) No amendment of an application for a patent or a complete specification or any document relating thereto shall be made except by way of disclaimer, correction or explanation, and no amendment thereof shall be allowed, except for the purpose of incorporating actual fact, and no amendment of a complete specification shall be allowed the effect of which would be that the specification as amended would claim or describe matter not in substance disclosed or shown in the specification before the amendment, or that any claim of the specification as amended would not fall wholly within the scope of a claim of the specification before the amendment."

C. Amendment Strategy

Original specification = absolute boundary (no new matter).
Verbatim or clearly equivalent textual support required.
Pre-grant amendments more flexible than post-grant.
Disclaimer + correction + explanation permitted.
Strategic narrowing to distinguish prior art.
Adding fallback positions through dependent claims.

4. Pre-Grant Opposition Response (Section 25(1))

A. The 2024 Rules Framework

✅ Pre-Grant Opposition Response (2024 Rules)

CONTROLLER'S NEW PRIMA FACIE SCREENING: · Controller first decides MAINTAINABILITY. · If no prima facie case → notice to opponent → refusal order within 1 month. · If prima facie case → notice to applicant. APPLICANT REPLY (2 MONTHS — reduced from 3): · Reply statement addressing each ground. · Evidence (if any). · Affidavits where appropriate. · Form TM-O equivalent for patents. KEY STRATEGIC POINTS: · Treat each ground separately. · Use Section 25(1)(a)-(k) framework. · Address novelty + inventive step distinctly. · Section 8 compliance critical. · Engineering Analysis 2021 framework for foreign filings. HEARING (₹7,500 per side — new 2024 fee): · Oral arguments. · Both parties heard. · Section 14 procedure. OUTCOME: · Allow opposition + refuse application. · OR Allow application + dismiss opposition. · OR Allow with amendments.

B. Opposition Board Process

Three members appointed by Controller (Section 25(3)).
Examine notice + documents.
Submit joint recommendation with reasons.
Timeline: 2 months from documents (reduced from 3 in 2024).
Recommendation considered by Controller.
Final order: maintain, amend, or revoke.

5. Post-Grant Opposition Response (Section 25(2))

A. Foundational Framework

Filed by PERSON INTERESTED only.
Within 12 months from grant publication.
Form 7 — notice of opposition.
Same eleven grounds as pre-grant.
Higher fees (₹40,000) reflect serious nature.

B. Response Strategy

✅ Post-Grant Response Strategy

1. ENTRY OF APPEARANCE · Within prescribed time. · Form 7A. 2. WRITTEN STATEMENT · Address each ground separately. · Strong evidence base. · Affidavits + technical reports. 3. EVIDENCE FILING · Comparative data. · Commercial success. · Long-felt need. · Industry praise. 4. OPPOSITION BOARD INTERACTION · Joint recommendation crucial. · Engage actively. · 2-month timeline. 5. HEARING · Comprehensive oral arguments. · Cross-examination of opposition witnesses. · Re-examination of own witnesses. 6. OUTCOME OPTIONS · Maintain patent unchanged. · Amend specification (Section 25(4)). · Revoke patent. 7. APPEAL · Section 117A — to HC IP Division. · Within 3 months. · Comprehensive appeal grounds.

6. Hearings — Effective Advocacy

A. Pre-Hearing Preparation

Comprehensive written submission first.
Strong technical arguments.
Cited case law summary.
Demonstrative materials prepared.
Inventor available (if needed).
Expert witness reports.

B. Hearing Procedure

Applicant's opening arguments.
Examiner's objections summarized.
Applicant's detailed responses.
Discussion of each adverse finding.
Suggested amendments (if any).
Closing arguments.
Order reserved.

C. Common Hearing Pitfalls

Inadequate preparation.
Poor technical communication.
Failing to address all objections.
Ineffective claim amendments offered.
Lack of supporting evidence.
Argumentative rather than persuasive tone.

7. Section 8 Compliance — Critical 2024 Update

A. Section 8 Requirements

Section 8 Patents Act — Foreign Filing Disclosure

"8. Information and undertaking regarding foreign applications.—(1) Where an applicant for a patent under this Act is prosecuting either alone or jointly with any other person an application for a patent in any country outside India in respect of the same or substantially the same invention, or where to his knowledge such an application is being prosecuted by some person through whom he claims or by some person deriving title from him, he shall file along with his application or subsequently within the prescribed period as the Controller may allow— (a) a statement setting out detailed particulars of such application; (b) an undertaking that, up to the date of the acceptance of his complete specification filed in India, he would keep the Controller informed in writing, from time to time, of detailed particulars as required under clause (a) in respect of every other application relating to the same or substantially the same invention, if any, filed in any country outside India subsequently to the filing of the statement referred to in the aforesaid clause."

B. 2024 Form 3 Simplification

OLD: Multiple Form 3 filings as foreign filings change.
NEW (2024): SINGLE submission within 3 months of FER.
Controller may search foreign databases (relaxation).
Section 8 relaxed compliance burden.
Form 4 extension up to 3 months.
CRITICAL: Independent of FER response deadline.

8. Recent Prosecution Cases

📖 Vishal Prafulsingh Solanke v. Controller of Patent and Designs, 2025:BHC-OS:4952

Facts — Patent application refused after pre-grant opposition + regular examination.

Holding — Bombay HC: Pre-grant opposition + examination INDEPENDENT tracks. Single valid ground sufficient for refusal.

Significance — Reinforces strict prosecution requirements.

Lesson — Address ALL grounds, not just convenient ones.

📖 Novartis v. Natco Pharma, LPA 50/2023 (Del HC division bench)

Background — Distinct examination/opposition processes question.

Holding — Delhi HC: Distinct framework; both must be addressed independently.

Significance — Foundation for Vishal Solanke 2025.

📖 OpenTV Inc. v. Controller of Patents, 2023:DHC:3305

Background — Software/business method patent application.

Holding — Delhi HC: Single valid ground sufficient for refusal; absolute bar on business methods.

Significance — Demonstrates one-strike-out framework.

9. Strategic Considerations

✅ For applicants — eight points

For FER response, address every adverse finding comprehensively.

For amendments, work within Section 59 strict limits.

For Section 3(k) software, leverage CRI Guidelines 2025.

For Section 3(d) pharma, provide therapeutic efficacy data.

For Section 8, single Form 3 within 3 months of FER (2024).

For pre-grant opposition, leverage prima facie screening (2024).

For hearings, prepare comprehensive written submissions first.

For appeals, file within 3 months to HC IP Division.

10. Memory Aid — Quick Recall

✅ Quick Recall — Patent Prosecution

FER 4-part structure: bibliographic + substantive + formal + Section 8.

FER response: 6 months + 3 month extension (Rule 24B(5)+(6)).

Form 3 single submission within 3 months of FER (2024).

Section 59 — strict amendment framework; no new matter.

Section 25(1) pre-grant opposition: prima facie screening (2024); 2-month reply.

Section 25(2) post-grant: 12 months from grant; Form 7; ₹40,000 fee.

Opposition Board: 2 months recommendation (2024).

Section 14 hearings: oral arguments.

Section 117A — appeal to HC IP Division within 3 months.

CRI Guidelines 2025 — three-step test for AI/software.

Caleb Suresh Motupalli 2025 — sufficiency strict.

Vishal Solanke 2025 — pre-grant + examination distinct tracks.

OpenTV 2023 — single valid ground sufficient for refusal.

Engineering Analysis 2021 — foreign filing royalty taxation framework.

🎯 EXAM POINTERS — TOPIC 145

Patent Prosecution lifecycle: Filing → Publication → RFE → Examination → FER → Response → Hearing → Grant/Refusal → Opposition.
Section 11A — Publication 18 months from priority date.
Section 11B — RFE within 31 months (2024 reform; previously 48).
Rule 24B — Standard examination procedure.
Rule 24C — Expedited examination.
FER 4-part structure: bibliographic + substantive + formal + Section 8.
FER response timeline: 6 months + 3 month extension on Form 4 (Rule 24B(5)+(6)).
Section 14 — Hearing rights.
Section 59 Patents Act — STRICT amendment framework; no new matter beyond original specification.
Pre-grant opposition (Section 25(1)) — any person; prima facie screening (2024); 2-month reply.
Post-grant opposition (Section 25(2)) — person interested; 12 months from grant; Form 7; ₹40,000 fee.
Opposition Board (Section 25(3)) — 3 members; 2-month recommendation (2024).
Section 25(1)(a)-(k) — eleven grounds for opposition.
Section 117A — appeal to HC IP Division within 3 months.
Section 8 — Foreign filing disclosure obligation.
Form 3 single submission within 3 months of FER (2024 reform).
CRI Guidelines 2025 (29 July 2025) — three-step test for software/AI.
Caleb Suresh Motupalli v. Controller (2025) — Section 10(4) sufficiency strict.
Vishal Solanke v. Controller (2025:BHC-OS:4952) — pre-grant opposition + examination distinct tracks.
Novartis v. Natco (LPA 50/2023) — distinct examination/opposition framework.
OpenTV v. Controller (2023:DHC:3305) — single valid ground sufficient for refusal; business methods absolute bar.
Engineering Analysis Centre v. CIT (AIR 2021 SC 1394) — software royalty taxation.
Telefonaktiebolaget v. Lava (2024:DHC:2698) — seven-step novelty.