Peter PrommerPartner

Peter advises technology-focused businesses, from emerging companies to leading global corporations, on strategies to build, protect, and leverage intellectual property portfolios that align with their business objectives. His practice focuses on patent portfolio management, domestic and foreign patent preparation and prosecution, and intellectual property transactional matters in a variety of technical fields. Peter further has extensive experience preparing patent opinions for effectively counseling clients on enforcement and avoidance strategies, including clearance, infringement, and invalidity opinions. His experience includes working with companies in a variety of industries that include mechanical, electronic, software, and materials technologies.

In addition to providing counsel on intellectual property procurement, transactional, and opinion matters, Peter’s experience extends to providing guidance on post-grant and effective enforcement strategies. He further advises clients on trademark prosecution, as well as, agreements on general IP matters.

Prior to joining Pranger, Peter was a partner at a Global 100 and an AmLaw 200 law firm. He has practiced intellectual property law for over 20 years, after spending his early career as a licensed professional engineer and engineering consultant.


  • Advising leading healthcare and technology companies on strategically building global patent portfolios related to wearable devices, durable medical devices, implant technologies, digital healthcare solutions, diagnostic and monitoring devices, and healthcare management systems.
  • Counseling electronics and health care companies on technology agreement matters.
  • Counseling leading computer hardware manufacturers on strategically building and protecting their IP portfolios, including in inter partes reviews (IPR) proceedings before the Patent Trial and Appeal Board (PTAB).
  • Counseling international leaders in engineering, manufacturing, and scientific research technologies strategical building and protecting IP portfolios, and on patent opinion matters, including for battery systems, power equipment, simulation software, packaging systems, infrastructure systems, and composites.
  • Advising world-renowned research institutions on licensed and non-licensed technologies directed to COVID-10-related technologies, microfluidic cell structure devices, medical imaging, positioning systems, and micro-electonmechanical system (MEMS)  technologies.
  • Representing both plaintiffs and defendants in patent litigation and other intellectual property matters related to consumer electronics, medical device, imaging, and digital technologies.


J.D., University of Illinois College of Law, magnum cum laude

Bucerius Law School, Hamburg, Germany

M.S., Northwestern University, Walter P. Murphy Fellow

B.S., University of Illinois at Urbana-Champaign, with honors


Creating a Culture of IP Evangelists: How Do You Make Your Organization Acutely Aware of the Value of Your Portfolio and the Importance of Protection, World Intellectual Property Review Summit, Chicago, March 2024 (Moderator)

IP Policy and Innovator Perspectives on Artificial Intelligence: A Virtual Chat with the USPTO and entigenlogic®, Illinois Intellectual Property Alliance, Webinar, June 2021 (Moderator)

A View into the Intellectual Property Crystal Ball Under the New Biden Administration, Nixon Peabody’s 2021 Virtual CLE Week, Webinar, March 2021 (Speaker)

Intellectual Property Strategies to Improve Your Company’s Competitiveness, Chicago Connectory (by Bosch and 1871), Webinar, June 2020 (Speaker)

More Certainty on Limits to Early § 101 Challenges – How Will This Impact Patent Owners and Applicants, Intellectual Prop. & Tech. Law Journal, Vol. 32, No. 5, May 2020 (Co-Author)

Intellectual Property in SMEs – How IP Strategies Can Improve Your Competitiveness, German American Chamber of Commerce, Business Luncheon, Schaumburg, Illinois, March 2020 (Speaker)

Wired Attire: The IP and Business of Wearable Tech, Nixon Peabody’s Modern IP Lawyer: A Boot Camp for Success Seminar, Chicago, June 2017 (Moderator)