Practice Areas



  • Managing IP, IP Stars, Michigan, USA, 2013-2018


  • State Bar of Michigan, 1992
  • State Bar of New York, 1987
  • U.S. Patent and Trademark Office, 1983


The George Washington University Law School, J.D., with honors, 1986

 University of Rochester, William E. Simon Graduate School of Business Administration, MBA, 1987

University of Michigan, Ann Arbor, MI, BS in Chemical Engineering, 1980, magna cum laude

Photo of Paul L. Marshall

Paul L. Marshall


Paul Marshall joined the firm as a partner in 2009 after 23 years as in-house legal counsel for some of the top corporations in the world in positions of increasing responsibility. He specializes in intellectual property (IP) transactional and patent procurement and opinion matters involving a range of complex technologies in chemicals, nanomaterials, control algorithms, and automotive. His experience and business acumen are highly valued by clients looking for business-focused IP counsel and services.

Experience Highlights

Partner, Cantor Colburn LLP, 2009-present

Division IP Counsel, Delphi Corporation, Troy, MI, 2003–2009

Assistant General Counsel, Honeywell International Inc. (formerly AlliedSignal Inc.), Troy, MI, 1996–2003

BASF Corporation, Wyandotte, MI, 1991–1996

  • Managing Counsel, 1993–1996
  • Senior Patent Attorney, 1991–1993

Eastman Kodak Company, Rochester, NY 1980-1991

  • Patent Attorney, 1986–1991
  • Patent Law Assistant, 1982–1986
  • Chemical Engineer, 1980–1982


Professional Affiliations

American Intellectual Property Law Association

Intellectual Property Owners Association

Michigan Bar Association

Michigan Intellectual Property Law Association

Rochester Intellectual Property Law Association, 1986-1991, vice-president, treasurer, recording secretary