Attorney Doug Christensen's headshot

Douglas J. Christensen

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Practice Areas

  • Intellectual Property
  • Patent

Bar Admissions

  • Minnesota, 1985
  • U.S. District Court District of Minnesota
  • U.S. Patent and Trademark Office
  • U.S. Court of Appeals 8th Circuit
  • U.S. Court of Appeals Federal Circuit
  • Minnesota Supreme Court


  • Super Lawyers, 2006-2008, 2012-2018


Doug Christensen, a partner at Patterson, Thuente, Skaar & Christensen, P.A., maintains a vibrant U.S. and international patent prosecution practice, having obtained hundreds of patents for clients with global name recognition. Mr. Christensen counsels clients on all aspects of intellectual property, including licensing and domestic and foreign patent infringement litigation. Mr. Christensen focuses his practice on the mechanical, electro-mechanical, medical devices, and semiconductor manufacturing arts, and is experienced in developing and managing extensive client patent portfolios. Additionally, Mr. Christensen's extensive first chair trial experience is a valued asset in counseling his clients on infringement matters.


  • Hamline University School of Law, St. Paul, Minnesota
    • J.D. - 1985
  • University of Minnesota
    • B.S. - 1977
    • Major: Mechanical Engineering

Professional Associations

  • Minnesota Intellectual Property Law Association, Member
  • American Intellectual Property Law Association, Member
  • Minnesota State Bar Association, Member
  • American Society of Mechanical Engineers, Member

Certified Legal Specialties

  • Patent and Trademark, United States Patent and Trademark Office, 1992

Current Employment Position

  • Partner
  • Patent Attorney