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

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


John McCauley is a trial and appellate lawyer with fifteen years’ experience handling complex cases throughout the country. He has represented plaintiffs and defendants in a wide range of commercial, intellectual-property, shareholder, antitrust, and constitutional matters. John joined Hansen Reynolds in 2015 after clerking for the Honorable Michael S. Kanne on the U.S. Court of Appeals for the Seventh Circuit and practicing with a large national firm. Before law school, John worked for a management consultancy advising clients in the banking sector.


Successfully defended Wisconsin counties against former President Trump’s challenge 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 recoveries in the U.S.—after a successful month-long bench trial. Co-counsel with Susman Godfrey LLP.

Defended municipalities and law-enforcement officers against a variety of Section 1983 constitutional claims in federal district court and before the Seventh Circuit.

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

Representing “micro-hospital” developer pursuing claims in federal court for breach of NDA and misappropriation of trade secrets.

Representing plaintiff antitrust class alleging restraint of trade, monopolization, and unfair methods of competition against large hospital in Wisconsin.

Successfully defended pharmaceutical company in federal court against nine-figure contract, fraudulent-inducement, and RICO claims.

Prevailed on summary judgment and obtained multimillion-dollar settlement for consultant who negotiated IP-licensing deals in the medical-device industry.

Challenged Mine Safety & Health Administration’s promulgation of a new “pattern of violations” rule; briefed and argued the case before the U.S. Court of Appeals for the Sixth Circuit.

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.

Defended Fortune 100 drug wholesaler against opioid lawsuits filed in Wisconsin.

Established precedent in Pennsylvania permitting holder of mining rights to subside the surface; defeated claims of eminent domain and adverse possession by owner of the surface estate.

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

Obtained favorable resolution for plaintiff coal mine in a property and mineral-rights dispute against the operator of a natural-gas pipeline; defeated effort to dismiss the case on federal-preemption grounds.

Obtained relief for Ohio-based energy company against a competitor that was infringing on client’s trademark and trade name.

Defended trucker fuel card company against class action and competitor lawsuits alleging monopolization and related antitrust claims.

Defended major chemical company in billion-dollar environmental-indemnity dispute.


  • “Judge Conen works tirelessly to resolve cases at mediation. He is well prepared and understands the central issues in question. Unlike many mediators, Judge Conen will continue to work with the parties even if mediation failed to see if a resolution can be reached prior to trial.”

  • “My firm and opposing counsel engaged Jeffrey Conen/Hansen Reynolds to facilitate and conduct a binding mediation through the Chicago Bar Association mediation service in an exceptionally difficult and emotionally charged matter. Mr. Conen was excellent in his handling of the file from intake through conduct of the mediation and we ended up resolving the matter through his efforts in far shorter than was ever expected. I highly recommend Mr. Conen and look forward to using his services again should the need ever arises in the future.”

  • “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