Dennis C. Lee

Chicago Office

Dennis C. Lee is an intellectual property attorney who concentrates on patent litigation and procurement. He has experience in litigating patents covering a diverse array of technologies, including mobile applications, LCD television screens, digital cameras, hard disk drives and automated truck transmissions. In addition, Dennis has extensive experience in addressing disputes involving pharmaceutical patents and legal issues arising under the Hatch-Waxman Act. He is involved in all phases of complex litigation, including appeals before the Federal Circuit. 

A registered patent attorney with the US Patent and Trademark Office, Dennis also drafts and secures patents covering a wide range of technologies, including robotic surgical devices, night vision systems for aircraft and home alarm systems. In this role, he partners with clients to design and implement customized strategies to create strong patent protection that transforms ideas into competitive business advantages. Dennis has also worked with clients to develop brands through the procurement of trademarks.

Dennis served as a judicial extern for Judge Samuel Der-Yeghiayan of the US District Court for the Northern District of Illinois. He is active in the Asian-American legal community and serves as president of the Korean-American Bar Association.

Shown below is a selection of Dennis’s engagements.

  • Advanced Display Technologies of Texas, LLC v. Dell, Inc., et al.
  • FastVDO LLC v Apple Inc., et al.
  • Altana Pharma AG, et al. v. Teva Pharma. USA Inc., et al.
  • Infinity Computer Products, Inc. v. Brother International Corp., et al.
  • Apotex, Inc. v. Cephalon, Inc.
  • Development Innovation Group, LLC v. Nokia, Inc., et al.


  • JD, University of Illinois College of Law
  • BS, Computer Engineering, University of Illinois

Bar Admissions

  • Illinois

Court Admissions

  • US District Court, Northern District of Illinois
  • US Court of Appeals, Federal Circuit
  • US Patent & Trademark Office


  • American Bar Association
  • Intellectual Property Law Association of Chicago
  • Korean American Bar Association, President
  • National Asian Pacific American Bar Association


  • Korean
  • Spanish
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