Practice Areas



  • GM General Counsel Award, 2010
  • GM Chairman’s Honor for Autonomy/Hy-Wire fuel cell vehicle program team, 2002
  • GM/Delphi President's Council Awards - 1998, 1999, 2000
  • Wayne State Law Review
  • West Publishing Company Book Award for Outstanding Scholastic Record


  • Michigan State Bar, 1995
  • U.S. Patent and Trademark Office, 1995


  • Legal Intern for the Honorable Judge Avern Cohn, United States District Court, Eastern District of Michigan, Southern Division and Visiting CAFC Judge, 1994


Wayne State University Law School, J. D., magna cum laude, 1994

Purdue University, Master of Science in Engineering 1990

University of Detroit, Bachelor of Mechanical Engineering, magna cum laude, 1987

Teaching Positions

  • Adjunct Professor, Intellectual Property, Thomas M. Cooley Law School, 2009-2010
Photo of Kathryn A. Marra

Kathryn A. Marra


Kathryn Marra brings more than 20 years of in-house expertise in all aspects of intellectual property and related transactions.  Her trusted, experienced guidance and counsel provides creative and pragmatic solutions.  A true specialty of Kathryn’s is drafting and negotiating complex global IP agreements, including a wide variety of collaboration and venture agreements, technical/patent licenses, purchasing agreements, software and data licenses, service agreements and non-disclosure agreements.  Her practice also focuses on patent prosecution, infringement and clearance analysis, strategic portfolio management and IP training, and divestitures and acquisitions.  Kathryn has supported intellectual property issues globally for numerous advanced technologies throughout her career including autonomous, electric, and fuel cell vehicles, infotainment systems, vehicle software, other software and related services, interiors, exteriors, safety, advanced materials, electro-mechanical components, computer-aided design, manufacturing, additive manufacturing and traditional propulsion systems. 

Experience Highlights

Partner, Cantor Colburn, 2019-present

Intellectual Property Attorney, General Motors Legal Staff, 2002-2018

Intellectual Property Attorney, Delphi Automotive Systems Legal Staff, 1999-2002

Intellectual Property Attorney, General Motors Legal Staff, 1993-1999

Product Analysis Engineering Expert Witness, General Motors, 1990-1993

Current Product Engineering Staff, General Motors, 1987-1990


Professional Affiliations

Intellectual Property Owners Association (IPO)

Community/Civic Involvement

Detroit Free Legal Aid Clinic, Pro Bono Volunteer, 2010-2015