Practice Areas



  • Top 250 Most Active Patent Attorney, Patexia, 2024
  • IP Stars, Managing IP, Connecticut, USA, 2013-2023
  • Faculty Award, Catholic University of America, 1995


  • U.S. District Court of Connecticut, 1996
  • State of Connecticut, 1996
  • Commonwealth of Pennsylvania, 1995
  • U.S. Patent and Trademark Office, 1995


Catholic University of America, J.D., 1994

Rensselaer Polytechnic Institute, B.S., Electrical Engineering, 1989

Teaching Positions

  • Adjunct Professor, University of Connecticut School of Law, Patent Law, 2001-2003
Photo of David A. Fox

David A. Fox

Partner and Co-Chair of the Electrical Engineering Practice
860.286.2929, ext. 1126

David Fox’s experience with patent law began in 1990 as a Patent Examiner with the U.S. Patent and Trademark Office. In 1995, Dave entered private practice counseling clients in all phases of patent prosecution. His current practice involves patent prosecution, due diligence, invalidity/non-infringement opinions and pre-litigation analysis. He has co-chaired the firm’s highly productive Electrical Practice for more than 20 years and focuses his own practice on electrical, software, and mechanical technologies. He has been an adjunct professor of patent law at the University of Connecticut School of Law.

Experience Highlights

Partner, Cantor Colburn LLP, 1996-present

Associate, Ratner Prestia, Valley Forge, Pennsylvania, 1995-1996

Patent Examiner, U.S. Patent and Trademark Office, specializing in image processing arts, 1990-1994



Professional Affiliations

American Bar Association

American Intellectual Property Law Association

Intellectual Property Owners Association (IPO)

Connecticut Bar Association

Connecticut Intellectual Property Law Association