A two-judge Bench of the Supreme Court of India (Justice Pamidighantam Sri Narasimha and Justice Alok Aradhe) has issued notice on a Special Leave Petition (SLP) challenging a Calcutta High Court decision regarding Section 53 of the Patents Act, 1970. The apex court will decide whether patent holders are entitled to Patent Term Adjustment (PTA) or extended protection when administrative delays by the Indian Patent Office absorb a significant portion of the statutory 20-year term.
Court: Supreme Court of India
Bench: Justice Pamidighantam Sri Narasimha & Justice Alok Aradhe
Amicus Curiae Appointed: Advocate Kruttika Vijay
Date of Notice Issue: September 2026 | Next Date of Hearing: October 26, 2026
Core Subject: Section 53, Patents Act, 1970 | Section 11A(7) | Patent Term Adjustment (PTA) | Judicial Legislation vs. Executive/Prosecutorial Delay
Key Legal Questions Before the Supreme Court
- Adoption of Patent Term Adjustment (PTA): Can Indian courts read in or judicialize a framework akin to the U.S. Patent Term Adjustment model—which compensates patentees for unnecessary delays during prosecution by extending the patent term beyond 20 years?
- Limits of Section 11A(7) vs. Section 53: Does the protection provided under Section 11A(7) (which allows a patentee to claim damages/privileges from the date of publication once granted) adequately offset the loss of full monopoly rights caused by delayed grant under Section 53?
- Judicial Interference vs. Legislative Function: Does introducing a mechanism for extending patent terms exceed the constitutional boundaries of judicial review under Article 226/Article 136 by stepping into legislative policymaking?
Background & High Court Ruling
- Factual Matrix: The petitioner filed a patent application on May 2, 2005. The patent was granted nearly 7 years later, on December 28, 2012. Under Section 53 of the Patents Act, 1970, the 20-year duration is calculated strictly from the date of filing, causing the patent to expire in May 2025—effectively cutting the commercial monopoly down to ~13 years.
- Calcutta High Court Findings:
- Upheld the strict wording of Section 53, holding that the statutory 20-year term strictly runs from the filing date.
- Held that Section 11A(7) and Section 53 operate in distinct fields: Section 11A(7) confers inchoate rights post-publication upon grant, whereas Section 53 sets an absolute statutory ceiling.
- Concluded that introducing a Patent Term Adjustment system requires legislative amendment and cannot be granted via a writ of mandamus under Article 226.
Comparative Analysis: Statutory Provisions in Question
| Statutory Provision | Current Framework under Patents Act, 1970 | Proposed / Contended PTA Framework |
| Section 53 (Term of Patent) | Fixed 20-year duration starting strictly from the international/national filing date. | Extension/adjustment added to the end of 20 years for Patent Office delays. |
| Section 11A(7) (Post-Publication Rights) | Grants applicant same rights as a patentee from publication date, enforceable only after grant. | Treated as insufficient compensation for missing active commercial monopoly years. |
| Jurisprudential Source | Strict Compliance with TRIPS Agreement Minimum Standards (Art. 33). | Modelled after U.S. 35 U.S.C. § 154(b) (Patent Term Adjustment). |