Practice Areas



  • State of Connecticut, 1999
  • State of California, 1975
  • U.S. Patent and Trademark Office, 1973


Georgetown Law Center, J.D., 1972

University of New Haven, MBA., 1987

Michigan State University, B.S., Chemical Engineering, 1968

Photo of William A. Simons

William A. Simons

Of Counsel

William Simons engages in patent preparation, prosecution, counseling, and opinion work in a variety of chemical and chemical engineering technologies. Bill has more than four decades of experience in patent law and other intellectual property (IP) law areas, beginning as a Patent Examiner at the U.S. Patent and Trademark Office in the food arts and later as in-house patent counsel at Olin Corporation, 3D Systems Corporation, and NexPlanar Corporation, a high-tech start-up. While a partner at general practice firm Wiggin and Dana, Bill founded and chaired the Patent Practice Group. During this time, he prepared and prosecuted thousands of patent applications. Examples of areas in which Bill has drafted and prosecuted patents and prepared opinions include chlor/alkali processing; water treatment chemicals; photoresists and other photo chemistry applications; chemical mechanical polishing (CMP) pads and other semiconductor chemicals and processes; printed wire board chemicals and many other electronic chemistry applications; 3D printing and other rapid phototyping/manufacturing processes; agricultural chemicals; polyurethane and other polymer compositions; rocket fuels; and anti-dandruff agents.

Bill has also recently lectured on IP law at Manchester Community College, where he was able to implement his past experience as a Patent Examiner and create an interactive lecture that has made him a favorite instructor. Bill, while a Patent Examiner, examined one of the first patents for Pringles (R) crisps. He gave his students packages of Pringles (R) to examine while he explains the concepts of patents, trademarks, copyrights and trade secrets through this product and its packaging while his students enjoyed the result of a successfully patented product. 

Experience Highlights

Counsel, Cantor Colburn LLP, Hartford, CT, 2010-present

Patent Counsel, NexPlanar Corporation, Hillsboro, OR, 2008-2010

Assistant General Counsel, 3D Systems Corporation, Rock Hills, SC, 2006-2008

Wiggin & Dana, New Haven, CT

  • Partner, 1997-2005
  • Counsel, 1993-1996

Senior Patent Counsel, Olin Corporation, Cheshire and New Haven, CT, 1976-1993

Patent Attorney, Beckman Instruments, Fullerton, CA, 1974-1975

Patent Attorney, Chernoff and Vilhauer, Portland, OR, 1973-1974

Patent Examiner, U.S. Patent and Trademark Office, Arlington, VA, 1968-1973

Professional Affiliations

American Intellectual Property Law Association

Connecticut Bar Association

California Bar Association

Intellectual Property Owners Association (IPO)