David R. Cleveland

Of Counsel

Patent Lawyers

David Cleveland is a patent attorney with more than 35 years of experience in intellectual property law. Serving as Of Counsel for the firm, he brings an invaluable depth of knowledge and experience to the team and our clients. His work for clients, both domestic and international includes:

  • Patent drafting and prosecution
  • IP portfolio management
  • Global market-protection strategies
  • Providing opinions on patentability, clearance, validity, and infringement
  • Post issuance proceedings
  • Drafting and counseling on complex IP-related agreements
  • Licensing, acquisitions and divestitures
  • Expert witness reports and testimony

David works primarily with large corporate legal departments on patent matters in the following technology areas:

  • Chemistry
  • Medical devices
  • Materials
  • Oil refining
  • Asphalt
  • Paints
  • Coatings
  • Optics
  • Mechanical devices

David’s experience includes both in-house positions and private practice, and is uniquely international in scope. He began his career with the 3M Office of Intellectual Property Counsel and held various positions over the span of 20 years, including a five-year post in Brussels Belgium as Senior IP Counsel for Europe and three years as Assistant Chief IP Counsel.   In 2002, David co-founded the IPLM Group and led a successful team of IP practitioners until joining Patterson Thuente IP in 2016.


Macalester College, BA, Chemistry and Economics (Mathematics minor), 1974, cum laude

University of Minnesota Law School, J.D., 1979, cum laude


Supreme Court of Minnesota
U.S. District Court, District of Minnesota
U.S. District Court, District of Colorado
United States Patent and Trademark Office
Solicitor, England and Wales


American Intellectual Property Law Association
Minnesota Intellectual Property Law Association, President 1998 – 1999
American Bar Association
Minnesota State Bar Association
Law Society of England & Wales

David R. Cleveland

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612.252.1555 cleveland@ptslaw.com