Thatcher A. Rahmeier



Thatcher A. Rahmeier represents domestic and foreign clients in a variety of matters including patent litigation, patent prosecution, counseling and opinions, trademark and copyright litigation, and unfair competition and trade secrets in the Electronic, Computer and Internet fields, as well as the Mechanical Arts and other diverse areas of technology. Among others, Thatcher works on matters involving automotives, telecommunications, signal processing, semiconductor fabrication, digital and analog circuits, networking, computer-related business methods, and e-commerce.

Thatcher participates in all areas of Federal litigation, including mediation and other forms of alternate dispute resolution. He also negotiates settlements and license agreements, as well as litigates related contractual disputes. Additionally, he has litigated in the International Trade Commission. Thatcher is a contributor to Drinker Biddle’s PTAB Trial Blog. He also has represented Delaware inmates as lead counsel in civil rights actions in Federal Court, through all aspects of pre-trial and trial.

During law school, Thatcher served as a judicial extern for Judge Fred Silverman of the Superior Court of Delaware. While at the University of Miami, Thatcher focused his electrical studies in the areas of acoustics, digital audio, transducers, multimedia, and speech and signal processing. In addition, Thatcher designed an efficient and accurate software-based speech recognition module.


Bar Admissions

  • Delaware
  • U.S. Patent and Trademark Office


  • University of Pittsburgh School of Law, J.D., 2008, cum laude, Pittsburgh Journal of Technology Law and Policy
  • University of Miami, B.S.E.E., 2004

Court Admissions

  • U.S. Court of Appeals, Federal Circuit
  • U.S. Court of Appeals, Third Circuit
  • U.S. District Court, District of Delaware
  • U.S. District Court, Eastern District of Michigan
  • U.S. District Court, Eastern District of Texas


  • American Bar Association
  • Delaware Bar Association
  • Eta Kappa Nu
  • Federal Bar Association