Delhi High Court | Intellepedia

The P-C Problem: Something that a Trademark Registry Search in 2001 could have prevented

The Delhi High Court has held that Intas Pharmaceuticals’ mark CLAVIX constitutes pharmaceutical trademark infringement of Sanofi’s blockbuster heart drug mark PLAVIX, differing by just one letter. The court granted a permanent injunction and nominal damages of Rs. 20 lakhs, but dismissed Sanofi’s passing off claim for want of established goodwill in India in 2001.

Philips DVD Standard Essential Patent Damages Reversed After 17 Years

digital illustration showing a DVD disc on the left fragmenting and dissolving into a green printed circuit board chip on the right, with bold red and gold forensic-style stamps reading "PROOF" and "EVIDENCE" superimposed across the transition. The dark navy background features faint circuit-line patterns. A text panel on the right reads "Philips DVD Patent Damages reversed after 17 Years."

In suits filed as far back as 2009, Koninklijke Philips claimed its DVD decoding patent was a standard essential patent infringed by two Delhi-based manufacturers. The Single Judge awarded substantial royalty-based damages. On appeal in 2026, the Division Bench reversed entirely, finding Philips had not proven essentiality, infringement, or a FRAND royalty rate.

Sacred Cow, Groundless Threat: Delhi High Court on Copyrights and Amazon

In the case of Avaia Ventures Private Limited v. Wildship Enterprises Private Limited, a competitor filed successive copyright complaints on Amazon against a seller of silver plated Kamdhenu cow idols, armed with no copyright registration, no court proceedings, and a product page URL where the copyright number should have been. The Delhi High Court found that filing platform level takedown complaints without ever approaching a court of competent jurisdiction is a groundless threat within the meaning of Section 60 of the Copyright Act, 1957. The court also held, at a prima facie stage, that the Kamdhenu cow with calf is a sacred motif in the public domain and that mass commercial production of more than fifty units had, in any event, extinguished any copyright the complainant may have claimed.

Dhurandhar Song Rights: Oye Oye, Not So Easy

Promotional banner for “The Revenge: Dhurandhar” showing a lone man walking through a fiery, orange-lit urban setting, with bold metallic title text in the foreground and flames surrounding the scene.

In the case of Trimurti Films Private Limited v. B62 Studios Private Limited & Ors., the plaintiff claimed copyright ownership over Tirchi Topiwale from the film Tridev and objected to its use and remix in Dhurandhar: The Revenge. The defendants relied on a 1988 assignment agreement and earlier uses of songs from Tridev in other films. The court refused interim relief after considering the agreement, prior conduct, suppression allegations, and balance of convenience.

Delhi High Court Revisits the Scope of Section 3(d) in Agrochemical Patents

Banner reading “Section 3(d) and Agrochemicals: Beyond Therapeutic Efficacy,” with illustrated farmers spraying crops on both sides.

The Delhi High Court interprets Section 3(d) in the agrochemical context by extending efficacy beyond therapeutic effect to encompass stability, usability, and practical field performance.

Mold-Tek Wins Patent Infringement Injunction Against Former Distributor

Patent infringement interim injunction India : Delhi High Court upholds tamper-evident packaging patents in Mold-Tek Packaging Limited v. Pronton Plast Pack Pvt. Ltd., 2026

In Mold-Tek Packaging Limited v. Pronton Plast Pack Pvt. Ltd., the Delhi High Court found both tamper-evident packaging patents valid and prima facie infringed, granted an interim injunction, and rejected the Gillette Defence, in a patent infringement case where the rival’s CEO was once the plaintiff’s own authorised distributor.

Golden Stag Hunts Blue Mangoes: Copyright Claim Falls Short

Golden stag glowing in a dark forest, symbolizing the copyright infringement dispute over Golden Stag and The House of Blue Mangoes.

In the case of Mr. David Davidar vs Ms. Sivasundari Bose, two novels set in South India turned into a long dispute over copyright and reputation. Ms. Bose claimed that The House of Blue Mangoes drew from her manuscript Golden Stag, while Mr. Davidar denied access, denied copying, and challenged the allegations.

Delhi HC Orders Xiaomi to Pay ₹272 Crore in Standard Essential Patent (SEP) Dispute

Standard essential patent pro tem security order - Delhi High Court directs Xiaomi to deposit ₹272 crore in Malikie Innovations and BlackBerry cellular SEP dispute

The Delhi High Court has ordered Xiaomi to deposit ₹272 crore as pro tem security in a standard essential patent infringement suit filed by Malikie Innovations Ltd., which holds BlackBerry’s cellular SEP portfolio. Did Xiaomi’s own move in a Chinese court inadvertently seal the outcome?

No Passport for Trademark Exhaustion – Delhi HC Resets the Rules

Indian passport featured image - Delhi High Court ruling on trademark international exhaustion under Section 30(3) Trade Marks Act, illustrating that foreign trademark registration carries no automatic rights in India

When a Chinese manufacturer’s Indian agent registers the STELLADEXIN trademark and the manufacturer later authorises a rival to sell the same cookers in India, who can claim infringement? The Delhi High Court Division Bench answers that question and, in doing so, resets the limits of international exhaustion and prior user under Indian trademark law.

Dung Deal: Delhi High Court Remands Cattle Manure Battery Patent

Sodium-ion battery with hard carbon electrode material - Delhi High Court post-grant opposition ruling on cattle manure-derived battery patent

The Delhi High Court has set aside a post-grant revocation of a patent covering a cattle manure-derived hard carbon process for sodium-ion batteries, finding that the Deputy Controller failed to apply the mandatory five-step inventive step test. The case raises sharp questions about procedural rigour in post-grant opposition proceedings under the Patents Act, 1970.