The resources, expertise, and resolve to meet every challenge.

The Hilliard & Shadowen team has extensive courtroom experience, so we know how to meet the challenges of complex cases. We have the resources, knowledge and professional expertise to achieve the best possible results.

Steve Shadowen

Steve Shadowen is a founding partner at Hilliard & Shadowen LLP and specializes in economic justice and civil rights. Over his extensive career, he has been lead counsel in numerous groundbreaking cases.

Mr. Shadowen is regularly recognized as a top national antitrust lawyer, a result of his dedicated work on cases where intellectual property and antitrust law intersect, such as:

  • In re KDur Antitrust Litig.: Mr. Shadowen won the Third Circuit argument that turned the tide for the plaintiffs in the pay-for-delay antitrust cases.
  • In re Cardizem CD Antitrust Litig.:  Mr. Shadowen won the first appellate case that ruled for plaintiffs on the pay-for-delay issue.
  • In re Brand-Name Prescription Drugs Antitrust Litig.:  Mr. Shadowen was lead counsel for the purchaser plaintiffs in the landmark litigation that began calling Big Pharma to account for anticompetitive conduct. 
  • Abbott Labs. v. Teva Pharmaceuticals, U.S.A., Inc.:  Mr. Shadowen was on plaintiffs' trial team, and was one of the driving forces in the litigation, in the first case to accept the "product hopping" theory of anticompetitive conduct.

For his work in securing economic justice for healthcare consumers, in 2013 the American Antitrust Institute awarded Mr. Shadowen its first-ever national accolade for Outstanding Antitrust Litigation Achievement in Private Law Practice.  Mr. Shadowen also consistently garners recognition as a Best Lawyer in America for Antitrust and Commercial Litigation and as a Pennsylvania SuperLawyer. He serves on the advisory boards of the American Antitrust Institute and the Institute for Consumer Antitrust Studies and is an adjunct professor at the Pennsylvania State University Dickinson School of Law. Mr. Shadowen has published numerous papers on antitrust and civil rights issues and lectured on antitrust and competition law at universities across the nation and in Europe. He is a committed advocate for equal access to education and serves as a trustee of St. Edward’s University.  From 1999 - 2014, Mr. Shadowen was the President and Chair of the Board of the Joshua Group, an at–risk youth education and advocacy organization.  He is now Chair Emeritus.

Prior to starting Hilliard & Shadowen LLP, Mr. Shadowen was a partner at the Philadelphia-based firms, Hangley Aronchick Segal & Pudlin, and Schnader Harrison Segal & Lewis, where he represented plaintiffs in antitrust litigation for more than 19 years.

As a law student he was the criminal procedure project editor of the Georgetown Law Journal. Upon graduation from Georgetown he served as a clerk for the Hon. Boyce F. Martin, Jr. of the United States Court of Appeals for the Sixth Circuit.

"Our judicial system is the crucible in which citizens bring their values and judgment to bear on important social questions. Hilliard Shadowen lawyers view zealous, ethical representation of our clients as the highest
civic calling."
-Steve Shadowen


  • J.D., Georgetown University Law Center, cum laude
  • B.A., St. Edward’s University, summa cum laude


  • American Antitrust Institute Advisory Board 
  • Institute for Consumer Antitrust Studies Advisory Board
  • Best Lawyer in America for Antitrust and Commercial Litigation
  • Pennsylvania SuperLawyer


“Bringing Market Discipline to Pharmaceutical Product Reformulations,” 42 Int’l Rev. Intel. Prop. & Comp. Law 698 ( 2011) (with K. Leffler and J. Lukens).

"Personal Dignity, Equal Opportunity, and the Elimination of Legacy Preferences," 21 Geo Mason U. Civ. Rts. L.J. 31 (2010)

“Heirs of the American Experiment,” in Affirmative Action for the Rich: Legacy Preferences in College Admissions (R. Kahlenberg, ed., 2010) (with S. Tulante).

“Anticompetitive Product Changes in the Pharmaceutical Industry,” 41 Rutgers L.J. 1 (2009) (with K. Leffler & J. Lukens).

“Obama: Stay Away from Notre Dame’s Commencement,” The American Prospect online (May 12, 2009) (with R. Kahlenberg).

“No Distinctions Except Those Which Merit Originates: The Unlawfulness of Legacy Preferences In Public and Private Universities,” 49 Santa Clara L. Rev. 51 (2008) (with S. Tulante & S. Alpern).