John D. Denkenberger

John D. Denkenberger


Christensen O'Connor Johnson Kindness PLLC

Recognized since 2011

Seattle, Washington

Practice Areas

Litigation - Intellectual Property

Patent Law

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John Denkenberger is the managing member of COJK, a member of the firm's executive committee, and chair of the litigation practice group. John has successfully litigated patent, trademark, trade secret, and unfair business competition issues in federal and state courts. He has also successfully litigated AIA post-grant challenges, including inter partes review, before the Patent Trial and Appeal Board. In addition to his litigation practice, John also advises clients on foreign and domestic patent and trademark procurement, technology licensing, and litigation strategies in a variety of technology areas, including mechanical, electromechanical, acoustics, and software. Prior to becoming an attorney, John worked for 10 years as a research and design engineer in the aerospace and aircraft industry.

Since its inception in 2013, John has been named to Intellectual Asset Management's Patent 1000 — The World's Leading Patent Professionals. He is ranked in Chambers USA for intellectual property law; is recognized in Managing Intellectual Property magazine’s IP Stars for his work in patent law; and has been named a Washington Super Lawyer.


Location
  • 1201 Third Avenue, Suite 3600
    Seattle, WA 98101
Education
  • State University of New York at Buffalo, B.S., Mechanical Engineering, graduated 1986
  • Seattle University, J.D., cum laude, graduated 1995
Bar Admissions
  • Washington, Washington State Bar
Affiliations
  • American Bar Association - Member
  • American Intellectual Property Law Association - Member
  • Asian Bar Association of Washington - Member
  • King County Bar Association - Member
  • Patent Trial and Appeal Board Bar Association - Member
  • Washington State Patent Law Association - Member
Court Admissions
  • Supreme Court of the United States
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. District Court for the District of Colorado
  • U.S. District Court for the Eastern District of Texas
  • U.S. District Court for the Western District of Washington

Recognized in The Best Lawyers in America® 2025 for work in:
  • Litigation - Intellectual Property
  • Patent Law
Awards:
  • Chambers USA
  • Intellectual Asset Management, IAM Patent 1000 - The World's Leading Patent Professionals
  • Managing Intellectual Property, IP Stars
  • Super Lawyers, Washington
Additional Areas of Practice:
  • Litigation - Patent

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Publications

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