Nathan J. Oesch, Associate


Nate Oesch focuses his practice on appellate, complex civil, and intellectual property litigation matters. He works with a wide spectrum of companies to address their litigation needs, with an emphasis on proceedings before federal courts. As a former law clerk, Nate has experience with a wide variety of legal issues.  He also uses his knowledge of the Eastern District of Wisconsin gained as a federal law clerk to serve as local counsel for out-of-state firms in proceedings within the district.

In addition to his litigation practice, Nate helps his clients navigate a variety intellectual property issues related to copyrights, patents, and trademarks.  He is particularly interested in helping startups navigate legal issues as they begin to grow and develop.

His recent work includes:

  • Successfully defending against a preliminary injunction seeking to enjoin allegedly false advertising related to capabilities of a client’s product.
  • Successfully moving to dismiss a Wisconsin Deceptive Trade Practices Act claim regarding statements in a client’s advertising.
  • Successfully moving to dismiss antitrust and additional claims against a client who operates in the Milwaukee, Wisconsin area and obtaining an affirmance of the decision at the Seventh Circuit.
  • Successfully obtaining dismissal at summary judgment of claims against client in maritime personal injury case.

Nate is also involved in the firm’s pro bono efforts, taking on both Wisconsin public defender appointments at the appellate level, as well as requests for counsel in § 1983 prisoner litigation cases in the Eastern District of Wisconsin.

Before joining Quarles & Brady, Nate served as a law clerk for the Honorable William C. Griesbach in the United States District Court for the Eastern District of Wisconsin. In addition, he worked as a Judicial Intern for the Honorable Diane S. Sykes in the Seventh Circuit Court of Appeals, as well as for the Honorable Charles N. Clevert in the United States District Court for the Eastern District of Wisconsin.

Prior to his legal career, Nate worked as a research associate for the Insurance Institute for Highway Safety (IIHS), an independent, nonprofit, scientific, and educational organization dedicated to reducing the losses from motor vehicle crashes. His research was focused on human factors and its application to advanced in-vehicle safety systems.

Legal Services

Education and Honors

  • Marquette University Law School (J.D., magna cum laude, 2018)
    • Marquette Law Review (Comment Editor)
    • CALI Awards (highest grade) in Appellate Writing & Advocacy, Evidence, Federal Courts, International Law, and Tort Theory
    • Jenkins Moot Court Honors Competition, Winner & Best Brief
    • Marquette Law School Pro Bono Honors Society
  • St. John's College (B.A., 2009)
    • Majors: Philosophy, History of Mathematics & Science
    • Minors: Classical Studies, Comparative Literature
    • Member, National Collegiate Croquet Championship Team 2009

Bar Admissions

  • Wisconsin

Court Admissions

  • U.S. District Court, Eastern District of Wisconsin
  • U.S. Court of Appeals, 7th Circuit

Professional and Civic Activities

  • American Bar Association, member
  • Seventh Circuit Bar Association, member
  • Eastern District of Wisconsin Bar Association, member
    • membership committee
    • pro bono recruitment committee

Professional Recognition

  • Ruth La Fave Trailblazer Award (Eastern District of Wisconsin Bar Association 2019)
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