Thomas E. Zemaitis

Thomas E. Zemaitis


Philadelphia, PA
Phone: 215.981.4361    Fax: 215.981.4750

Thomas E. Zemaitis is a partner in the Philadelphia office of Pepper Hamilton LLP. He concentrates his practice in all types of commercial litigation, with an emphasis on intellectual property, particularly trademark, copyright and false advertising matters and on antitrust and trade regulation matters. His experience also includes securities, trade secret, contract, tortious interference and product liability cases.

Mr. Zemaitis joined Pepper as an associate in the Litigation Department in the Philadelphia office in 1976, and he became a partner in 1984. He left the firm to serve as general attorney for major litigation with Bell Atlantic Corporation from January 1992 through June 1993, and returned to the firm as a litigation partner in July 1993. Within Pepper, Mr. Zemaitis is the firm's general counsel. He has served as chair of the Professional Responsibility Committee, the Compensation Committee, the Associates Committee, and the Hiring Committee, and as a member of the Philadelphia Summer Associates Committee.  He also has been the partner in charge of associate assignments in the Litigation Department, head of training for litigation associates and coordinator of pro bono activities.


  • J.D., magna cum laude, University of Pennsylvania Law School, 1976, editor of the Law Review; awarded Order of the Coif.
  • B.A., English, magna cum laude, University of Pennsylvania, 1973

Bar Admissions

  • New York
  • Pennsylvania

Court Admissions

  • U.S. Court of Appeals, Eighth Circuit
  • U.S. District Court, Southern District of New York
  • U.S. Court of Appeals, Second Circuit
  • U.S. Court of Appeals, District of Columbia Circuit
  • U.S. District Court, Eastern District of Michigan
  • U.S. Court of Appeals, Sixth Circuit
  • U.S. Court of Appeals, Eleventh Circuit
  • U.S. Court of Appeals, Fifth Circuit
  • United States Supreme Court
  • U.S. Court of Appeals, Third Circuit
  • U.S. District Court, Eastern District of Pennsylvania

Practice Areas