Skip to content David R. Heckadon


San Francisco
315 Pacific Avenue
San Francisco, CA 94111


J.D., University of Calgary

M.B.A., University of Windsor

Bachelor of Commerce, honors, University of Windsor

B.S., Mechanical Engineering, University of Windsor


LEED® AP certified by the U.S. Green Building Council


  • Icelandic

David Heckadon is of counsel in GRSM’s San Francisco office and a member of the Intellectual Property practice group.

David’s intellectual property practice focuses on patent application and prosecution. He has significant experience managing corporate patent portfolios and dockets (both domestic and foreign) and managing the patenting process from reviewing initial invention disclosure forms and meeting with inventors to drafting and prosecuting patents to allowance.

David also has significant experience with freedom to operate and infringement analyses, due diligence reviews and patent technical review for litigation support.

David’s patent practice spans a wide variety of technical fields, including:

  • Electro-mechanical systems, mechanical systems, scanning devices, medical imaging.

  • Internet and computer systems, software and business method patents, pharmaceutical software management systems,

  • Chemical analysis systems, renewable energy, microfluidics,

  • Medical device systems, and

  • Design patents.

A registered patent attorney, David also handles matters covering trademarks, copyrights, trade dress, trade secrets, licensing, technology transfer, and non-disclosure and non-compete agreements in global markets.

David’s green technology practice focuses on patent applications for renewable energy companies, Green Building issues and greenhouse gas legislation. David is the first and only lawyer in the U.S. who is both a registered U.S. Patent Attorney and a Leadership in Energy & Environmental Design Accredited Professional (LEED® AP) certified by the U.S. Green Building Council.


Washington D.C. 
Ontario (Canada) (inactive)
U.S. Patent and Trademark Office

Publications & Presentations