Paul A. Calvo, Ph.D.



Paul A. Calvo, Ph.D.
In addition to managing a robust practice working with clients in the biotechnology and pharmaceuticals industries, Paul is the co-editor of the firm’s “Global Patent Prosecution” newsletter.

Paul A. Calvo, Ph.D., is a director in Sterne Kessler's Biotechnology & Chemical Practice Group. Paul represents a diverse group of U.S. and international companies innovating in the biotechnology and pharmaceuticals industries. He provides counsel with regard to global patent portfolio strategy, licensing, patent validity, infringement, and design around strategies. Paul is experienced in U.S. and international patent procurement and enforcement matters (particularly patent prosecution and oppositions), FDA/ANDA practice, technology transfer, invalidity, noninfringement, freedom-to-operate and patentability opinions, and due diligence investigations.  

Additionally, Paul has extensive expertise in prosecuting and investigating patents related to bioproduction methods and therapeutic formulations. He is a recognized leader in understanding the significance and challenges of bioprocessing patents from both an originator and biosimilar perspective. He has authored articles and presented on these topics in both the U.S. and internationally. 

Paul is a contributing author of Patent Office Litigation, Second Edition, published in 2017, and the two-volume set Patent Office Litigation, published in 2012 by Thomson Reuters Westlaw. The first edition focused on the new contested proceedings under the America Invents Act that year, while the second edition provides a fresh and comprehensive exploration of these proceedings. Both books examine how the proceedings interact with other aspects of patent procurement and enforcement, and deliver practical analysis and advice.  

Prior to joining Sterne Kessler, Paul gained extensive technical expertise in the areas of therapeutic antibodies, biotherapeutics, vaccines, cellular immunology, and cell and molecular biology during his graduate studies and post-doctoral fellowships at The University of Pennsylvania and National Institutes of Health.  

Paul earned his B.S. in biology from the University of Scranton, his Ph.D. in molecular and cell biology from the Medical College of Pennsylvania – Hahnemann University, and his J.D. from The Catholic University of America Columbus School of Law.

Paul is fluent in Italian.

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The Catholic University of America Columbus School of Law
Molecular and Cell Biology
Medical College of Pennsylvania - Hahnemann University
University of Scranton


District of Columbia
United States Patent & Trademark Office

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