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Can a Biosimilar Reference Product Trigger Infringement?

Introduction In a recent development for biologics patents in India, the Delhi High Court has granted interim relief to E.R. Squibb in their infringement suit1 against Zydus Lifesciences. The suit concerns IN 340060, which claims the monoclonal antibody Nivolumab—commercially known as Opdivo®—used in immunotherapy for various cancers. On July 18, 2025, the Court restrained Zydus […]
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Celator’s Patent Upheld against Post-Grant Oppositions filed by Cipla and Mylan

Kan and Krishme successfully represents patentee in landmark post-grant opposition against Indian pharmaceutical companies: Introduction The Indian Patent Office (IPO) has upheld Indian Patent No. 315447 in favor of Celator Pharmaceuticals Inc., dismissing post-grant oppositions filed by Cipla Ltd. and Mylan Laboratories Ltd. This landmark ruling affirms the strength of Celator’s patent covering its novel […]
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Delhi High Court Reaffirms Inventive Step Must Be Evidence-Based, Not Assumption-Driven

Introduction In the fast-evolving world of intellectual property, patent applicants often face procedural and substantive hurdles—especially when navigating oppositions and prior art disclosures. In DONG YANG PC, INC. v. Controller of Patents and Designs, the Korean innovator in automated parking systems challenged the rejection of its Indian patent application on two key grounds: (1) that […]
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Draft Version 2.0 CRI Guidelines 2025: Understanding the Changes and their Impact

Introduction The Indian Patent Office’s Computer Related Inventions (CRI) Guidelines 2025 have undergone some revisions in its second draft, shaping the way patentability is assessed for innovations in fields like Artificial Intelligence (AI), Blockchain, Quantum Computing, and more. These changes aim to enhance clarity, fairness, and consistency in patent examination while fostering innovation in emerging […]
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MS Dhoni’s Quest to Trademark “Captain Cool”

In June 2023, legendary former Indian cricket captain Mahendra Singh Dhoni took a significant step by filing a trademark application for his well-known nickname, “Captain Cool.” The application was submitted by Rithi Sports Management Pvt Ltd, a company associated with Dhoni, to the Trade Marks Registry. The mark was filed under Class 41, which covers […]
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Delhi High Court Stays Multimillion Dollar Decree against Amazon

Introduction On July 1, 2025, the Delhi High Court passed a significant order 1staying the execution of a ₹336 crore (approx. USD 38.8 million) decree awarded against Amazon Technologies Inc. in a trademark infringement suit initiated by Lifestyle Equities CV and Lifestyle Licensing BV—entities associated with the Beverly Hills Polo Club (BHPC) brand. This stay […]
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How Delay and Non-Use Undid Conqueror’s Claims Against Xiaomi

Introduction How Delay and Non-Use Undid Conqueror’s Claims Against Xiaomi The Delhi High Court’s decision in Conqueror Innovations Private Limited & Anr. v. Xiaomi Technology India Private Limited1 [1] offers a meticulous exploration of patent infringement claims and the high threshold required for interim relief in Indian patent litigation. Justice Amit Bansal’s judgment, pronounced on […]
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