Charles S. Marion

Charles S. Marion


Philadelphia, PA
Phone: 215.981.4119    Fax: 215.981.4750

Charles S. Marion is a partner in the Commercial Litigation and Intellectual Property Litigation Practice Groups of Pepper Hamilton LLP, resident in the Philadelphia office.

Mr. Marion is an experienced litigator who has tried several cases to verdict in various state and federal courts throughout the United States. He has also served as lead counsel in several domestic and international arbitrations, and regularly represents clients in mediations and other types of alternative dispute resolution. Mr. Marion understands the risk, uncertainty, disruption and expense associated with litigation, and often counsels clients on steps they can take to reduce the risk of litigation or, if a lawsuit has been commenced, methods they can utilize and strategies they can implement to resolve the lawsuit at an earlier stage and on the best possible terms.

Mr. Marion practices primarily in the areas of complex business litigation, intellectual property litigation (including patent and trademark infringement cases, claims for unfair competition and breach of non-compete and/or non-solicitation agreements, and trade secret disputes), franchise litigation, securities litigation and product liability. In the last few years, he has advised and defended a growing number of clients whose websites have been accused of violating the Americans with Disabilities Act, and frequently writes and presents webinars and other programs on that subject.Mr. Marion represents corporations and individuals in a variety of industries and his intellectual property and product liability cases involve a wide range of technologies, devices and products (both consumer and industrial).

Mr. Marion is an active member of several professional, charitable, educational and community organizations. He serves as president and trustee of the Chestnut Hill Community Fund, a charitable trust that manages an endowment fund and other assets for the benefit of the Chestnut Hill Community Association in Philadelphia. He is a member of the board of directors of the Wharton Alumni Club of Philadelphia and chairs the club’s monthly networking breakfast meetings. Mr. Marion serves as a member of the advisory council of the Salvation Army Kroc Center of Philadelphia and on the tennis committee of the Philadelphia Cricket Club. He also founded the 2T Group, a business networking group based in Philadelphia.

Professionally, Mr. Marion mentors diverse law students in the Philadelphia region through the Leadership Council on Legal Diversity. He has been an active member of the Forum on Franchising and the Intellectual Property Litigation Committee of the American Bar Association (ABA), and served as an inaugural member of the ABA’s Advisory Panel, through which he was asked to provide input on the direction of the ABA and issues affecting its members. With the Philadelphia Bar Association, he is past chair of the Federal Courts Committee; led several investigative teams for the Commission on Judicial Selection and Retention; served on a special task force studying the economic impact of lawyers on the City of Philadelphia; and was an elected member of the executive committee of the Young Lawyers’ Division. Mr. Marion is also a fellow of the Academy of Advocacy of Temple University.


  • J.D., University of Pennsylvania Law School, 1989
  • B.A., American History, with honors, University of Pennsylvania, 1986
  • B.S., Economics, University of Pennsylvania, The Wharton School

Bar Admissions

  • Florida
  • Pennsylvania

Court Admissions

  • U.S. Court of Appeals, Federal Circuit
  • U.S. District Court, Eastern District of Pennsylvania
  • U.S. District Court, Middle District of Pennsylvania
  • U.S. District Court, Southern District of Florida
  • U.S. District Court, Middle District of Florida
  • U.S. District Court, Eastern District of Wisconsin

Practice Areas