Remfry & Sagar Team Member

Debashish Banerjee


Debashish provides strategic counselling to clients predominantly in the pharmaceutical, chemical, crop protection and life sciences domains. He deals with all aspects of patent law and focuses his practice on patent enforcement and invalidation. Debashish also brings to the table rich and diverse experience in the realm of patent prosecution and oppositions. Notably, he has been lead counsel in successfully arguing scores of appeals against adverse decisions by the Patent Office.


Besides this, Debashish synergises his experience from law school and business school to craft and implement market strategies to help clients maximise their IP potential. Having spent more than a decade and a half at the bar, Debashish has in-depth knowledge of Indian patent law and practice – a key asset in meeting the challenges of his role.


Debashish actively drafts briefs and motions. His work also involves preparing opinions on patent validity/invalidity, patent infringement, freedom to operate and claim construction analysis. He has widespread experience in patent infringement investigations, pre-litigation counselling and obtaining interim relief.


He is a seasoned patent litigator having appeared before trial and appellate courts across the country in patent infringement matters. He is adept at negotiating settlements as a tool in appropriate cases.


Off the job, he is regularly invited as a speaker at national and international events and is the author of several articles on patent law and technology.


Practice Areas

Patents; Patent Litigation


Bachelor's Degree in Chemistry, LL.B., Post Graduate Diploma in Business Management


Capital markets, travel, cricket, gastronome!


‘BRONZE Band – Litigation’ – IAM Patent 1000 (The World’s Leading Patent Professionals), 2022-24


‘Rising IP Star’ – Managing Intellectual Property (MIP) magazine 2019-23



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