Shannon K. Clark

Clark Shannon

Shannon K. Clark is a patent litigator. Shannon focuses on cases involving chemicals, pharmaceuticals, and biotechnology, and has extensive experience litigating Abbreviated New Drug Application (ANDA) cases brought under the Hatch-Waxman Act. She has litigated patent disputes from inception through trial, including as lead trial counsel. Prior to joining Venable, Shannon was an attorney at the boutique intellectual property (IP) firm Fitzpatrick, Cella, Harper & Scinto. She also served as a judicial law clerk to the Honorable Garrett E. Brown, Jr., U.S.D.J., and the Honorable Joel A. Pisano, U.S.D.J., in the U.S. District Court for the District of New Jersey.


Representative Matters

  • Represented Novartis in Novartis v. Breckenridge, West-Ward, and Par (Zortress® (everolimus) for kidney and liver transplantation); Novartis v. West-Ward (Afinitor® (everolimus) for renal cell carcinoma and pancreatic neuroendocrine tumors); Novartis v. Par (Afinitor® (everolimus) for breast cancer)
  • Represented Regeneron in Regeneron v. Merus (VelocImmune® transgenic mice)
  • Represented Bausch Health in Bausch Health v. Sun (Xifaxan® (rifaximin) for travelers’ diarrhea); Bausch Health v. Sandoz (Xifaxan® (rifaximin) to treat irritable bowel syndrome with diarrhea); Valeant v. Actavis (Xifaxan® (rifaximin) to treat irritable bowel syndrome with diarrhea and hepatic encephalopathy)
  • Represented UCB in UCB v. Mallinckrodt and UCB v. Teva (Metadate® CD (methylphenidate) for attention deficit hyperactivity disorder)

Representative Clients

  • Gilead
  • UCB
  • Regeneron
  • Novartis
  • Bausch Health




  • J.D. magna cum laude Seton Hall University School of Law 2011
  • B.S. Biology cum laude Birmingham-Southern College 2008

Bar Admissions

  • Virginia
  • New York
  • U.S. Patent and Trademark Office

Court Admissions

  • U.S. Court of Appeals for the Federal Circuit


  • The Best Lawyers in America, Ones to Watch, 2021 – 2022, 2024


Pro Bono

  • Secured compassionate release of a federal inmate during the COVID-19 pandemic


  • Member, Junior League