Daniel A. Boehnen is a founder of McDonnell Boehnen Hulbert & Berghoff LLP. His practice focuses primarily on trials, appeals, opposition proceedings, and all forms of disputed patent matters. Clients often seek his counsel on general IP, business, and legal problems because of his keen insight and his ability to create understanding, simplify problems, and innovate solutions. Clients praise Mr. Boehnen for crafting aggressive strategies to try cases and settle cases while remaining sensitive to the client’s business goals. Mr. Boehnen and his team have been praised by clients as the most integrated and efficient attorneys they work with.

His litigation experience encompasses a wide range of high-tech industries in all levels of the federal court system. He has been involved in many notable and precedent-setting cases.

Mr. Boehnen is frequently invited as a guest speaker to corporate and professional groups.

  • J.D., Cornell Law School
  • B.S., University of Notre Dame,

    Chemical Engineering

Bar Admissions
  • Illinois
  • U.S. Patent & Trademark Office
  • Federal Circuit Bar Association
    • Former Governor
  • Association of Patent Law Firms
    • Founder
    • Former President and Board Member
  • Cornell Law Alumni Association of Greater Chicago
    • Founder
    • Former Chair


  • Chambers USA
  • Who’s Who Legal
  • IAM Patent 1000
  • IAM Global Leaders Guide
  • IAM Patent Litigation 250
  • Best Lawyers in America (2006-2024)
  • Illinois Super Lawyers
  • Leading Lawyers Network
  • Top Patent Trial Lawyers in Illinois (Crain’s Chicago Business)
  • American Bar Foundation Fellow
  • LAWYER GLOBAL 100 for intellectual property law, by LAWYER Monthly Magazine

Published Articles

American Bar Association Handbook on Patent Litigation Strategies.

  • Contributing Author

“Intellectual Property Litigation,” Lawyer Monthly, September 2011.