David G. Hanson

David G. Hanson is a Wisconsin litigation attorney and shareholder at Reinhart Boerner Van Deuren S.C., focused on intellectual property law, ERISA, appellate, and technology-related disputes. His practice includes patent, trademark, copyright, and trade secret litigation, along with Taft-Hartley and ERISA matters. He represents clients across industries such as engineering, manufacturing, mining, biotechnology, construction, and consumer products. His work further includes advertising and media disputes, nondisclosure issues, artificial intelligence matters, and complex commercial conflicts.

David earned his B.A. with honors from the University of Wisconsin-Madison, studying Economics with a mathematical emphasis and Political Science. He later received his J.D. from the University of Wisconsin Law School, where he served on the Law Review. His academic training provided a foundation in legal analysis, economics, and complex technical issues that supports his litigation practice.

David is admitted to practice in Wisconsin and before the US District Courts for the Eastern and Western Districts of Wisconsin. His appellate admissions include the US Courts of Appeals for the Seventh and Federal Circuits. He previously chaired the State Bar of Wisconsin’s Intellectual Property Section and belongs to several federal and local bar associations. Since 1997, he has served as an adjunct professor at Marquette University Law School, where he developed an intellectual property litigation workshop.

David G. Hanson has handled federal jury trials, appellate matters, patent disputes, trade secret cases, trademark proceedings, and ERISA litigation. His experience includes serving as an arbitrator in complex intellectual property disputes and as an expert witness on attorney fee issues. Best Lawyers has named him “Lawyer of the Year” for intellectual property and patent litigation, while Chambers USA has recognized him for many years. His practice combines trial advocacy, technical understanding, and strategic dispute resolution.

Law Office Affiliations

• Shareholder, Reinhart Boerner Van Deuren s.c.
• Former Chair, State Bar of Wisconsin, IP Section
• Member, Milwaukee Bar Association
• Member, American Bar Association, Dispute Resolution Section

Licensed State

• Wisconsin

Education

• University of Wisconsin Law School
  Juris Doctor (JD)
• University of Wisconsin
  BA in Economics with Mathematical Emphasis & Political Science with Honors

Awards & Badges