John W. McCauley

John W. McCauley


, Partner

John W. McCauley


University of Pennsylvania Law School (J.D., cum laude, 2007; Levy Scholar)

Harvard University (A.B., cum laude, 2002)

University of Virginia (1997 – 98; Jefferson Scholar)

Bar Admissions

State of Wisconsin

State of Ohio

State of Pennsylvania (inactive)

U.S. Court of Appeals for the Sixth Circuit

U.S. Court of Appeals for the Seventh Circuit

U.S. District Court for the Eastern District of Wisconsin

U.S. District Court for the Western District of Wisconsin

U.S. District Court for the Southern District of Ohio

U.S. District Court for the Eastern District of Pennsylvania


Eastern District of Wisconsin Pro Bono Honor Roll (2021-2022)

Levy Scholarship, University of Pennsylvania Law School (2004-2007)

Legal Writing Honors, University of Pennsylvania Law School (2005)


John McCauley represents corporations, small businesses, and governmental entities in a wide range of commercial, intellectual-property, constitutional, and appellate matters. He has represented clients at trial and on appeal in state and federal courts across the country, including the Wisconsin Court of Appeals and Supreme Court, the U.S. Court of Appeals for the Seventh Circuit, and the U.S. Supreme Court. Mr. McCauley joined Hansen Reynolds in 2015 after clerking for Judge Michael S. Kanne on the Seventh Circuit. He was previously an attorney with two national law firms and worked as a management consultant in the financial-services industry.


Successfully defended Wisconsin counties against former President Trump’s challenges to the 2020 election results. Prevailed in the Wisconsin Supreme Court, federal district court, and before the Seventh Circuit.

Obtained over $300 million for minority shareholders of Promega Corporation—one of the largest shareholder-oppression settlements in the U.S.—after a successful month-long bench trial. Co-counsel with Susman Godfrey LLP.

Defended Wisconsin municipalities and law-enforcement officers against a variety of Section 1983 claims alleging First Amendment violations, false arrest, excessive force, and other constitutional claims.

Successfully defended large drug wholesaler in federal court against nine-figure claims for breach of contract, fraud, and racketeering.

Represented large manufacturing company in a complex coverage dispute against its commercial general liability insurers involving “all sums” liability for asbestos exposure.

Represented a California fintech company in litigation over access to real-estate data. Negotiated a favorable resolution out of court.

Successfully defended medical-device company against claims of patent infringement in federal jury trial and on appeal before the Federal Circuit.

Member of defendants’ trial team in multimillion-dollar patent infringement lawsuit involving LED technology.

Secured consultant’s right to millions of dollars in feeds for negotiating IP-licensing deals in the medical-device industry.

Challenged Mine Safety & Health Administration’s promulgation of an illegal “pattern of violations” rule in the U.S. Court of Appeals for the Sixth Circuit.

Defended egg producer in multi-district litigation against price-fixing and other antitrust claims.

Defended DuPont in billion-dollar environmental-indemnity dispute.


  • “Tim Hansen is incredibly effective in a courtroom. Maintaining a low key good humored demeanor he suddenly thrusts to the heart of an issue in a way that sticks in the mind. It was a pleasure to watch him take a case with many difficulties and resolve it favorably for his client while leaving everyone in the case his friend.”

    Gary M. Elden
    Partner / Shook, Hardy & Bacon
  • “I have been doing business with a myriad of Law Firms over the last 40 years, and Hansen Reynolds is by far the best I have ever been associated with. Hansen Reynolds proves that a law firm can WIN and represent the client with the utmost integrity. Let’s face it, litigation can be extremely expensive, and it is refreshing to know Hansen Reynolds treats the clients’ money like their own. Winning and Integrity are synonymous with Hansen Reynolds.”

    Gary R. Kane
    President & CEO / Richardson Industries
  • “We collaborate with Hansen Reynolds when our clients require litigation expertise. The combination of my firm’s substantive IP experience with Hansen Reynolds’ litigation experience is a win-win for our clients.”

    Tim Klintworth
    Partner / Klintworth & Rozenblat