Patent Lawyers King County

WLAM Foundation announces new Florence King Scholar in Patent Law

David Sheldon’s strong background in computer science and technical experience in software engineering help him assist his software industry clients with patent drafting, prosecution, and counseling. David’s technical expertise includes technologies such as control systems, encryption, wireless communication, information search and retrieval, compiler optimization, and social networking platforms. David also advises his clients on other vital issues relating to software products, including open source licensing and developing comprehensive strategies for protection of software using copyright, trademarks, design patents, and trade secrets to supplement utility patent protection. David’s patent prosecution experience includes a wide variety of other technical fields as well, such as medical and mechanical devices/processes.

David currently serves as chair of the Community Education Committee for the Washington State Patent Law Association. He is recognized in The Best Lawyers in America for his work in patent law. Prior to joining COJK, David worked in various computing-related roles, including designing and coding software testing utilities for Microsoft.


  • J.D., Order of the Coif, UCLA School of Law, 2007
  • B.S., cum laude, Computer Science, Northwestern University, 1999

Professional Experience

  • Christensen O'Connor Johnson KindnessPLLC, Seattle, WA, 2006 - present
  • The Honorable Judge Catherine Shaffer, Kent, WA, Summer 2005
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Technical Experience

  • Software Design Engineer/Test - Assistance Platform, Microsoft Corporation, 2002-2004
  • Software Test Engineer - Exchange QFE, Microsoft Corporation, 1999 - 2002
  • Programmer/Webmaster, E-insure Services, Inc., 1997 - 1999
  • PC Specialist, Encyclopedia Britannica, Inc., 1995 - 1996

Bar & Court Admissions

  • United States Patent and Trademark Office
  • Washington State Bar

Professional Affiliations

  • American Bar Association
  • King County Bar Association
  • Washington State Patent Law Association: Chair, Community Education Committee
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