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IP Lex · Indian IP case law

Search Indian IP Case Law

Judgments of the Supreme Court and the High Courts on patents, trade marks, copyright, designs and geographical indications — organised by Act and section, each with a link to the judgment on the court’s website.

118Judgments indexed
15Acts & Rules linked
5Courts covered
6IP categories

Recently added judgments

Case notes prepared by the Ragulika IP team, each linked to the judgment on the court’s website.

Patents

Natera Inc. & Anr. v. The Assistant Controller of Patents and Designs

Delhi High Court · C.A.(COMM.IPD-PAT) 16/2023

The exclusion of diagnostic methods from patentability under Section 3(i) of the Patents Act, 1970 applies without distinction between in vivo and in vitro processes, and covers a method whose complete specification and final clai…

BiotechnologyClaim ConstructionPatent ProsecutionSection 3(i)
Designs

NEC Corporation & Ors. v. The Controller of Patents and Designs & Anr.

Calcutta High Court · 2026:CHC-OS:71

A graphical user interface is not per se excluded from registration as a design under Sections 2(a) and 2(d) of the Designs Act, 2000; the requirement that a design be applied to an article by an industrial process must be constru…

Copyright Design OverlapDesign RegistrationDigital PlatformsNovelty
Trade Marks

Neon Laboratories Ltd. v. Medical Technologies Ltd. & Ors.

Supreme Court of India · (2016) 2 SCC 672

Under Section 34 of the Trade Marks Act, 1999, actual continuous prior use of a mark in the market prevails over a rival's earlier-dated application for registration where the registrant remained inactive for a prolonged period; t…

Deceptive SimilarityNon-usePassing OffPrior User
Trade Marks

New Balance Athletics Inc. v. Astormueller AG and Ors.

Delhi High Court · CS(COMM) 962/2025

Registration of a mark is no defence to a passing off action, since rights under Section 27(2) are independent of and override the bar in Section 28(3) on one registered proprietor suing another for infringement. Registration mere…

Anti-Dissection RuleDeceptive SimilarityInitial Interest ConfusionPassing Off
Patents

Nippon A&L Inc. v. The Controller of Patents

Delhi High Court · 2022 SCC OnLine Del 1909

An amendment restricting product-by-process claims to process-only claims is permissible under Section 59 where it narrows rather than broadens the scope of the claims as originally filed and remains within matter already disclose…

Claim AmendmentPatent ProsecutionProduct By Process ClaimsSection 59
Patents

Novartis AG v. Union of India & Ors.

Supreme Court of India · (2013) 6 SCC 1

Section 3(d) of the Patents Act, 1970 imposes a distinct and higher threshold of patentability for new forms of known substances, over and above the ordinary tests of novelty and inventive step. A new form of a known substance mus…

EfficacyEvergreeningInventive StepKnown Substance
Copyright

Opella Healthcare Group v. Pureca Laboratories Pvt Ltd (Copyright)

Delhi High Court · CS(COMM) 552/2024 & I.A. 32616/2024 (arising from I.A. 4622/2025)

A defendant cannot defend a copyright infringement suit on the basis of a registration that has been cancelled by an unchallenged rectification order which found the artistic work to be a copy of the plaintiff's pre-existing get-u…

Artistic WorkColourable ImitationCopyright RectificationLabel Design
Trade Marks

Opella Healthcare Group v. Pureca Laboratories Pvt Ltd (Trade Marks)

Delhi High Court · CS(COMM) 552/2024 & I.A. 32616/2024 (arising out of I.A. 4622/2025)

Where a coordinate bench, following an unchallenged rectification order, has found the mark in question deceptively similar to the plaintiff's registered mark, the defendant has no real prospect of successfully defending the infri…

Deceptive SimilarityPassing OffPharmaceutical MarksPrior Use
Patents

OpenTV Inc. v. The Controller of Patents and Designs & Anr.

Delhi High Court · 2023:DHC:3305

The exclusion of business methods under Section 3(k) is absolute and unqualified, unlike the per se qualification applicable to computer programmes; the true nature of a claim is determined by its substance rather than its form or…

Business MethodClaim AmendmentComputer Related InventionsSection 3(k)
Trade Marks

Parle Products Pvt. Ltd. v. The Registrar of Trade Marks & Anr.

Delhi High Court · LPA 316/2026 & CM APPL. 27819-20/2026

Where two parties file competing applications for registration of an identical or deceptively similar trade mark on a proposed-to-be-used basis, priority for registration under Section 18 of the Trade Marks Act, 1999 is determined…

Approbation and ReprobationPrior RegistrationPriorityProposed to be Used
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