Derek Gretkowski



(215) 366-4459

(215) 665-2013

Derek focuses his practice on complex patent cases in the pharmaceutical and biotechnology industries. In addition to representing companies in Hatch-Waxman and biosimilar litigation, his practice includes representing clients seeking patentability, infringement, and invalidity analyses, as well as developing strategic plans for clients seeking to protect their intellectual property around the world.

Derek was most recently a summer associate at Cozen O’Connor. Prior to that, he was a judicial extern for the Honorable Christopher J. Burke, U.S. District Court for the District of Delaware, and a judicial intern for the Honorable J. Curtis Joyner, U.S. District Court for the Eastern District of Pennsylvania.

Derek earned his bachelor’s degree in chemistry and philosophy from the University of Delaware. He earned his law degree, magna cum laude, from Rutgers University School of Law, where he was Order of the Coif, the associate managing editor of the Rutgers University Law Review, and served as a board member of The Honorable James Hunter III Moot Court Competition.




  • Rutgers University School of Law, J.D., magna cum laude, 2021
  • University of Delaware, B.A., 2018
  • University of Delaware, B.S., 2018
  • Pennsylvania