Jeffrey S. Gundersen



Jeffrey (Jeff) S. Gundersen is a partner and intellectual property lawyer with Foley & Lardner LLP and vice chair of the firm’s Intellectual Property Department. He provides counsel relating to patent acquisition and enforcement, product design, patent infringement matters, licensing, and transactions. In addition to the preparation of intellectual property agreements, patent opinions, and transactional due diligence opinions, he also counsels multi-national companies regarding global patent prosecution strategies. Jeff worked as a nuclear engineer for an energy company for several years before attending law school.


Jeff graduated from the University of Wisconsin as a Distinguished Scholar in the top 10 percent of his College of Engineering class with a Bachelor of Science degree in nuclear engineering in 1992. He is a member of the Tau Beta Pi National Engineering Honor Society. The University of Wisconsin awarded Jeff two Master of Science degrees in 1993, one in medical physics and a second in nuclear engineering and engineering physics. Jeff graduated from Marquette University Law School, summa cum laude, in 2000.


Jeff was recognized in IAM Patent 1000 – The World’s Leading Patent Practitioners for his work in patent prosecution in 2020. Jeff was recognized by Chambers USA: America’s Leading Lawyers for Business in intellectual property in Wisconsin (2010 - 2020). He was also selected for inclusion in the 2018 Wisconsin Super Lawyers® list as well as the 2006, 2008 and 2009 Wisconsin Super Lawyers–Rising Stars® lists. In addition, Jeff was selected by his peers for inclusion in The Best Lawyers in America© in the field of Patent Law (2017 - 2021) as well as The Legal 500 for his work in patent prosecution (2014, 2015 and 2017), patent licensing and transactional (2015, 2017, and 2018), and patent portfolio management and licensing (2016).


Jeff is admitted to practice in Wisconsin and before the U.S. Patent and Trademark Office.