Brian P. O'Donnell

Of Counsel

Brian P. O’Donnell focuses his practice on trademark, copyright and unfair competition litigation, and counseling. Brian manages large global trademark portfolios and is knowledgeable in the clearance, prosecution, and maintenance of trademarks worldwide. In addition, he assists clients on trade secrets, right of publicity, data privacy, e-commerce, and patent and domain name dispute resolution proceedings.

Brian has participated in trademark opposition and cancellation proceedings before the U.S. Trademark Trial and Appeal Board and the Canadian Intellectual Property Office; and he has directed trademark investigations in the United States, Canada, and China. He also has tried pro bono felony cases in state criminal court and counseled a variety of nonprofit organizations on IP issues.

An active member in the International Trademark Association, Brian currently serves as chair of the Building Bridges Committee and was previously the Chair of the Pro Bono Committee and a member of the Law Firm Committee, Enforcement Committee, and the Emerging Issues Committee.

Brian also brings valuable in-house experience to his IP practice, having managed the global trademark and patent portfolios for Kellogg Company.

Loyola University Chicago School of Law, 2001, J.D.
The London School of Economics and Political Science, 1995, M.S.
University of Illinois at Urbana–Champaign, 1994, B.A.
Ruprecht-Karls-University Heidelberg, 1993, KZZ

Illinois
District of Columbia
Colorado
US Supreme Court
US Court of Appeals for the Seventh Circuit
US District Court for the Eastern District of Michigan
US District Court for the Eastern District of Wisconsin
US District Court for the Northern District of Illinois

Leading Trademark Practitioner, Enforcement and Litigation, WTR 1000, World Trademark Review (2024)

Listed, , The Best Lawyers in America, Ones to Watch, Intellectual Property Law, Washington, DC (2024, 2025)

Member, International Trademark Association

Chair, Building Bridges Committee (2022, 2023)
Project Leader, Law Firm Committee (2014, 2015)
Chair, Pro Bono Committee (2012, 2013)
Enforcement Committee (2010, 2011)
Pro Bono Project Team (2010, 2011)
Emerging Issues Committee (2009)