Jeffrey S. Gundersen


Jeffrey S. Gundersen


Jeff Gundersen is focused on helping businesses of all sizes achieve their goals by capitalizing on innovation. For more than two decades, clients have come to Jeff for intellectual property counsel. Moreover, he is highly experienced at building and running teams charged with supporting all client legal needs, whether litigation, business, or intellectual property focused. He is well positioned to provide practical legal counsel with an understanding that any request for legal counsel is tied to an underlying business challenge or opportunity.

As a registered patent lawyer, Jeff helps clients with their patent procurement, enforcement, and counseling needs, including infringement matters, licensing, and transactions. Further, Jeff is experienced in the preparation and negotiation of intellectual property agreements, preparation of patent opinions, and performing transactional due diligence. Importantly, he also counsels multinational companies regarding global intellectual property strategies.

With longstanding clients in a wide range of fields, Jeff’s breadth of experience permits him to help clients succeed in addressing their business challenges regardless of field. Jeff represents clients focused on smart buildings, medical devices, robotics, transportation solutions including electric and autonomous vehicles, artificial intelligence, engines and outdoor power equipment, marine technologies, clean energy including nuclear power, water technologies, and energy storage.

Jeff worked as a nuclear engineer for an energy company for several years before attending law school and joining Foley. Jeff is presently chair of the firm’s Intellectual Property Department.

Awards and Recognition

  • Selected by his peers for inclusion in The Best Lawyers in America© in the field of Patent Law (2017-2024)
  • Recognized in IAM Patent 1000 – The World’s Leading Patent Practitioners in the field of patent prosecution (2020-2021)
  • Recognized by Chambers USA: America’s Leading Lawyers for Business in intellectual property in Wisconsin (2010-2023)
18 January 2024 Article

Foley Named Top General Practice Firm in Harrity Ranking

Foley & Lardner LLP has once again proven that its unique offering of a large intellectual property (IP) practice within a general practice (GP) platform resonates with clients.
17 August 2023 Honors and Awards

Foley Attorneys Recognized in 2024 Best Lawyers in America

Foley & Lardner LLP proudly announced today that 236 of the firm’s attorneys across 20 U.S. offices have received recognition in the 2024 edition of The Best Lawyers in America©.
01 June 2023 Press Releases

Foley Earns Top Rankings in Chambers USA 2023

Foley & Lardner LLP is pleased to announce that it has again been recognized by Chambers & Partners as one of the top law firms in the country in the 2023 edition of Chambers USA, America’s Leading Lawyers for Business.
14 February 2023

The Power of Intellectual Property Amplified by a General Practice Platform

Foley & Lardner LLP’s large intellectual property (IP) practice within a general practice (GP) platform is unique among its peers.
17 January 2023 In the News

Jeffrey Gundersen Discusses Foley Ranking in Top Four Patent Firms of 2022

Foley & Lardner LLP Partner Jeffrey Gundersen is quoted in the Law360 article, “This Firm Keeps Reeling In The Most Utility Patents,” discussing Foley ranking among the highest four firms in the country for total utility patents won in 2022.
18 August 2022 Press Releases

Foley Attorneys Recognized in 2023 Best Lawyers in America

Foley & Lardner LLP proudly announced that 250 of our attorneys across 20 offices have received recognition in the 2023 edition of The Best Lawyers in America.