Stefan M. Meisner


Stefan Meisner is a partner in the Antitrust and Competition group in the Washington, DC office of Crowell & Moring. He focuses his antitrust practice on complex, multi-district class action litigation alleging Sherman Act violations, U.S. Department of Justice (DOJ) investigations, merger investigations, and intellectual property issues.

He counsels clients on the antitrust implications of patent licensing and settlements of infringement litigation. In addition, he counsels clients on global strategies for addressing cartel prosecutions and defenses, from the inception of government investigations, to the initiation of civil class action litigation in a variety of jurisdictions. He also provides legal services to clients in connection with antitrust matters and electronic discovery issues.

Applying his understanding of clients’ business and legal priorities, Stefan also provides tailored compliance counseling and helps clients proactively address potential risk areas when designing comprehensive compliance programs.

Stefan serves clients in a variety of industries, including consumer products, defense and aerospace, high-tech, semi-conductors, hospitals, alcoholic beverages, steel, mining, and aggregates. He also advises on major mergers and acquisitions.

To develop efficient and effective solutions for businesses facing issues with e-discovery and management of electronically stored information, Stefan counsels clients on electronic discovery issues in the litigation and regulatory arenas. He counsels clients on developing effective strategies for managing electronic records in light of evolving standards on preservation and production of electronic documents and data under the U.S. Federal Rules of Civil Procedure. Stefan also has extensive experience with investigations that involve forensic examination of electronic media and data.

Stefan is active in representing individuals seeking asylum in the U.S. and U.S. service veterans who are seeking government benefits related to their service.

While in law school, he was the Editor-in-Chief of the American University International Law Review.

Representative Matters

  • Representing a Japanese automotive parts manufacturer in the antitrust multi-district litigation relating to automotive parts following DOJ investigation and resolution.
  • Defended a chocolate confectionery company in a class action price fixing litigation, winning summary judgment.
  • Defended Static Control Components, Inc. in a copyright, Digital Millennium Copyright Act (DMCA), and patent infringement action, including assertion of patent misuse defense, obtaining favorable jury verdict after five-week trial, successful Sixth Circuit appeal, and favorable decision from U.S. Supreme Court.
  • Defended a power tools manufacturer, achieving a motion to dismiss with prejudice related to charges of conspiring with other suppliers not to license the plaintiff’s technology and to manipulate certain safety standards.
  • Obtained merger clearance in multiple jurisdictions for defense contractor’s acquisition.
  • Defended a medical device manufacturer in antitrust counterclaim raised in a patent infringement case, winning summary judgment against allegations of “technological tying” of insulin pumps and related disposable infusion “sets.”
  • Defended a semiconductor company in antitrust counterclaim raised in a patent infringement case, winning motion to dismiss against allegations that the patent holder knew its patents were invalid at the time the plaintiff filed its infringement suit.
  • Obtained regulatory clearance in multiple complex acquisitions, often involving Second Requests, for numerous clients.


Admitted to practice: District of Columbia; Maryland


  • Global Competition Review
  • The Legal 500 (2019)
  • Washington Super Lawyers (2012 to present)

Professional Activities and Memberships

  • Member, The Sedona Conference®, Working Group on Electronic Document Retention and Production

Speeches & Presentations


Client Alerts & Newsletters

Press Coverage

Firm News & Announcements

June 14, 2021 Legal 500 United States Ranks Crowell & Moring in Six Practice Areas in 2021 Guide
October 14, 2020 Antitrust Litigator Stefan Meisner Joins Crowell & Moring