Author: Sharad Vadehra, Shikha Baiswar, Reena MP Singh.

August 1, 2025
Blog
No Comments

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 […]

May 22, 2023
Blog
No Comments

INTERPRETATION OF KNOWN PROCESS UNDER SECTION 3(D) BY DELHI HIGH COURT – Tapas Chatterjee v. Assistant Controller of Patents and Designs

Introduction Section 3(d) of the Indian Patents Act, 1970 holds a unique position within India’s patent law framework, particularly in relation to life sciences. It imposes additional scrutiny on patent applications concerning processes in this field. According to Section 3(d), patents cannot be granted for the mere use of a known process unless it results […]