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Betsy J. Derwinski

Senior Counsel
Phone: +1 312.840.3226
455 N. Cityfront Plaza Drive
Suite 3600
Chicago, IL 60611

Betsy Derwinski's practice focuses on U.S. and foreign patent application preparation and prosecution, currently devoting a significant portion of her practice to medical devices, surgical equipment and methods of use, including cardiovascular devices and products used in reproductive health technology. She also focuses on biochemistry, biopharma, and materials science. Additionally, Betsy has extensive experience in leading athletic footwear and apparel manufacturers. In addition to patent application preparation and prosecution, she provides patentability, validity and infringement analyses and opinions, and counsels clients on patent portfolio management and strategic planning.

Betsy develops a thorough understanding of a client’s business and the industries in which they operate. This allows her to craft tailored solutions that provide the broadest possible patent protection for a client’s crucial innovations with an eye to the specific competitive environment they face.

Always thinking forward, Betsy understands that every case is unique and is part of the broader picture that is her client’s current and future business success.


  • College of William & Mary, B.S. biology and chemistry (2001)
  • DePaul University College of Law, J.D. (2004)


  • Chicago Bar Association
  • Intellectual Property Law Association of Chicago, Board of Managers


Admitted to practice: Colorado, Illinois, U.S. Patent and Trademark Office (USPTO), U.S. District Court for the Northern District of Illinois

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"The Expanded Scope of the Printed Matter Doctrine and Effect on "Mental Steps"," IP Insights (May 30, 2018). Contact: Betsy J. Derwinski
Client Alert / Newsletter
"Deference: The Unanswered Question," Patent Lawyer Magazine (2004). Author: Betsy J. Derwinski

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Crowell & Moring LLP is an international law firm with offices in the United States, Europe, MENA, and Asia that represents clients in litigation and arbitration, regulatory and policy, and transactional and corporate matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation and government-facing matters, as well as its ongoing commitment to pro bono service and diversity, equity, and inclusion.

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