Peter P. Klepacz, Associate


Peter Klepacz provides patent prosecution and litigation counsel with a focus in life sciences, mechanical engineering and electrical engineering. Notably, Peter has experience working with medical devices, yard maintenance equipment, microscopes, large industrial machines, and IoT. He advises clients in freedom-to-operate opinions and patent portfolio strategy and management. He also drafts technology agreements and participates in due diligence reviews and landscape analyses.

Peter supports all aspects of patent litigation including discovery, depositions, and drafting pleadings. In addition to his litigation practice, Peter helps his clients navigate a variety of matters including intellectual property issues related to trademarks, patents, trade secrets, and copyrights.

Before joining Quarles & Brady, Peter worked as an IP associate at a boutique IP law firm where he gained significant prosecution and litigation experience.

Prior to private practice, Peter gained valuable experience as a judicial intern in the Wisconsin Supreme Court with Justice Shirley S. Abrahamson preparing bench memoranda, conducting legal research, and evaluating parties' arguments to recommend a mandate for the court. He also held a technology transfer legal internship with Marquette University's Office of Research and Innovation drafting licensing agreements and due diligence reviews.

Before attending law school, Peter worked as a research assistant at the Wisconsin Institute for Medical Research in a lab that focused on novel cardiac therapies and G protein-coupled receptor-related therapies.

Legal Services

Education and Honors

  • Marquette University Law School (J.D., magna cum laude, 2020)
    • Marquette Intellectual Property Law Review, managing editor
    • Marquette Law Review, web editor
    • CALI Excellence for the Future Award - Contract Drafting and Property Law
  • University of Wisconsin - Madison (B.S., 2016)
    • Majors: Biochemistry & Polish
    • Certificate: Global Health

Bar Admissions

  • Wisconsin

Court Admissions

  • U.S. Patent and Trademark Office
  • U.S. District Court, Eastern District of Wisconsin
  • U.S. District Court, Western District of Wisconsin


  • Polish
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