Bret Hrivnak

Bret A. Hrivnak


200 Public Square
Suite 2800
Cleveland, Ohio 44114

Primary Practices

As a patent and trademark attorney, Bret A. Hrivnak counsels clients on the protection of U.S. and international intellectual property, including patents, trademarks, copyrights, trade secrets and domain names. Bret manages worldwide IP portfolios and develops global strategies for IP protection.

Bret’s IP experience includes prosecuting and defending disputes arising under state, federal and international laws, including proceedings before the Board of Patent Appeals and Interferences, the Trademark Trial and Appeal Board and the World Intellectual Property Organization.

Bret’s representation also includes preparing and reviewing agreements, including licenses, assignments, joint ventures and development agreements, supply agreements, mergers and acquisitions, and other intellectual property transactions.  Bret also addresses antitrust issues that may arise in such transactions or otherwise during the course of his clients’ business activities.

Professional History

  • Partner, Hahn Loeser & Parks LLP, 2013-present; Associate, 2004-12; Law Clerk/Patent Agent, 2002-04
  • Race Tire Development Engineer, Bridgestone/Firestone, Inc., 1996-2001
  • R&D Engineer, East Manufacturing Corp., 1994-96


  • University of Akron School of Law, J.D., 2004
    • Honors & Activities: Certificate in Intellectual Property Law
  • University of Akron, M.S., Mechanical Engineering, 2001
    • Honors & Activities: Published Thesis, “Influence of Notch Severity on Impact Toughness and Fracture; Behavior of Three Aluminum Alloys”
  • University of Akron, B.S., Mechanical Engineering, 1994
Awards & Distinctions

Rising Star, Ohio Super Lawyers®, 2010, 2014


Akron Torchbearers, Class of 2010

Bar Admissions

State of Ohio, 2004


U.S. District Court for the Northern District of Ohio; U.S. Court of Appeals for the Federal Circuit; U.S. Patent and Trademark Office

Memberships & Affiliations

Institute for Creative Leadership, Board of Trustees, Member


Scanlon-Bell American Inn of Court, Member


Ohio State Bar Association, IP Law Section, Vice Chair; CLE Program Director


American Intellectual Property Law Association, Member


Cleveland Intellectual Property Association, Member


Licensing Executives Society (LES), Past Member


Scanlon Inn of Courts, Past Member