Douglas (Doug) H. Carsten focuses his practice on complex patent litigation disputes. He counsels clients in various technology areas, including pharmaceuticals, biologics, medical devices, diagnostic products, retail products and computer software. He has substantial first-chair trial experience that includes litigating high-profile and billion-dollar patent cases.

Doug is an active speaker on topics relating to patent law, trial practice, Hatch-Waxman issues and oral presentation skills.


  • Secured a Federal Circuit reversal of a patent term adjustment decision that cost his clients more than a year and a half of patent term relating to the oral pulmonary hypertension drug Orenitram, invalidating a US Patent and Trademark Office (USPTO) regulation that the Federal Circuit had previously affirmed as reasonable (Supernus et al. v. Iancu)*
  • Secured a trial win on a patent relating to United Therapeutics’ flagship product, Remodulin. United Therapeutics’ market capitalization increased approximately $1.2 billion during the trading day in which the US District Court for the District of New Jersey’s decision finding United Therapeutics patent valid and infringed under the doctrine of equivalents was released. (United Therapeutics v. Sandoz)*
  • Obtained trial verdict finding an injector pen for delivering insulin products did not infringe Sanofi’s patent, and further finding the Sanofi patent invalid (Sanofi-Aventis v. Mylan (D. N.J.))*

Lire la suite


  • Daily Journal, “Top Intellectual Property Attorneys”, 2018 to 2020
  • San Diego Super Lawyers, Intellectual Property, 2016 to present
  • Daily Journal, “Top 75 Intellectual Property Litigators”, 2015


Georgetown University Law Center, JD, cum laude, 1998
Harvard University, MA, Organic Chemistry, 1995
State University of New York at Stony Brook, BS, Chemistry and English Literature, BS with departmental honors, summa cum laude, Phi Beta Kappa, 1993

Courts / Agencies
US Supreme Court
US Court of Appeals for the Federal Circuit
US District Court for the Central District of California
US District Court for the Northern District of California
US District Court for the Southern District of California
US Patent and Trademark Office


Douglas H. Carsten

Publications et événements / Médias

No results using the selected filter(s)