Executive Summary
Boehringer Ingelheim Pharma sought permanent injunctions against various Indian pharmaceutical companies, alleging infringement of Patent No. IN 243301 related to Linagliptin tablets. The Delhi High Court examined the applications for interim injunction across multiple connected suits. The court found that the plaintiffs failed to establish a prima facie case, noting concerns about potential patent vulnerability due to prior claiming and attempts at evergreening. Consequently, all interim injunction applications were dismissed, allowing defendants to continue manufacturing and selling the products.
Practitioner Note
This case demonstrates the evidentiary and procedural standards applied in patent matters before Delhi High Court. Understanding the court's reasoning in Boehringer Ingelheim Pharma Gmbh And Co. Kg & Anr. vs Vee Excel Drugs and Pharmaceuticals Private Ltd. & Ors., Alkem Laboratories Ltd & Anr., Micro Labs Limited, Natco Pharma Limited & Anr., Mankind Pharma Limited is valuable context for structuring arguments or assessing risk in similar proceedings.
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