Betsy J. Derwinski

Betsy Derwinski focuses on U.S. and foreign patent application preparation and prosecution, currently devoting a significant portion of her practice to leading athletic footwear and apparel manufacturers. Betsy also has extensive experience in medical devices, surgical equipment and methods of use, including cardiovascular devices and products used in reproductive health technology.  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.

  • J.D.,
    DePaul University College of Law, 2004
  • B.S., Biology and Chemistry,
    William & Mary, 2001
Bar Admissions
  • Colorado
  • Illinois
  • U.S. Dist. Court, N.D. Illinois
  • U.S. Patent & Trademark Office
Technical Background
  • Biochemistry
  • Biopharma
Experience | Legal Experience

Brinks Gilson & Lione, Chicago, Illinois
Shareholder, 2018-Present
Counsel, 2012-2017

Cook Alex Ltd., Chicago, Illinois
Shareholder, 2011-2012
Associate, 2004-2010


"The Incredible Shrinking Patent World: Protecting Medical Device Patents in Light of Increasingly Strict § 101 Patentability Standards," American Conference Institute 4th Advanced Summit on Medical Device Patents, Chicago, March 24, 2014

Representative Matters
  • Secured patent protection for innovations in cardiac and vessel repair that have resulted in major advances in surgical procedures and outcomes.

  • Manages the patent portfolio for a large athletic apparel manufacturer, particularly involving innovative new materials, designs and technologies that are redefining the category.

Press Releases & Events
September 04, 2020

CHICAGO – Brinks Gilson & Lione, one of the nation's largest intellectual property law firms, is proud to announce that shareholders Betsy J. Derwinski, Laura A. Lydigsen, and Virginia Wolk Marino have all been named to the Crain’s Chicago Business list of 2020 Notable Women in Law.


CHICAGO  – Brinks Gilson & Lione is proud to announce it has achieved Mansfield 2.0 Certification Plus status for the second year in a row ...

August 21, 2018

CHICAGO – Brinks Gilson & Lione, one of the nation’s largest intellectual property law firms, is proud to announce that through its participation in the Diversity Lab’s Mansfield Rule Pilot Program 1.0, the firm has achieved Mansfield Rule Certification and Certification Plus status...

January 02, 2018

CHICAGO—Brinks Gilson & Lione, one of the largest intellectual property law firms in the United States, has elected three attorneys as shareholders, effective January 1, 2018. They are Betsy J. Derwinski and E. Brandon Nykiel in Chicago, and Alejandro (Alex) J. Fernandez in Tampa, Fla...


Crain's Notable Women in Law, Crain's Chicago Business, 2020

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