Duane Morris LLP

Partner

Anthony J. Fitzpatrick is Chair of  the Patent Litigation Division of the firm's Intellectual Property Practice Group. His practice focuses on patent, trade secret and other technology-related litigation. Mr. Fitzpatrick has extensive experience as lead counsel at trials in federal and state courts and in arbitration. He has also argued on multiple occasions before the Court of Appeals for the Federal Circuit and before the Patent Trial and Appeal Board of the USPTO.

Mr. Fitzpatrick has litigated matters involving diverse technologies, and has gained particular experience in the life sciences, including pharmaceuticals, biologics, medical devices and diagnostics. He frequently represents clients in disputes concerning the inventorship, ownership and licensing of patents. Mr. Fitzpatrick has extensive experience in negotiating and drafting agreements to resolve complex intellectual property disputes, including agreements to resolve litigation under the Hatch-Waxman Act.

Mr. Fitzpatrick also maintains an active practice in the field of alternative dispute resolution. In addition to representing parties in arbitration proceedings, he is a member of the American Arbitration Association’s panel of arbitrators for commercial and life sciences matters.

In July 2023, Mr. Fitzpatrick was named a Massachusetts Go To Lawyer for IP Law by Massachusetts Lawyers Weekly (one of 22 lawyers named in the state). He has been shortlisted for LMG Life Sciences’ General Patent Litigator of the Year: New England Award in 2019, 2022 and 2023. In addition, Mr. Fitzpatrick has been named repeatedly as an IP Star by Managing Intellectual Property magazine and as a Massachusetts and New England SuperLawyer in the field of intellectual property litigation.

Mr. Fitzpatrick is a frequent speaker and commentator on patent litigation topics, including serving as Chair of Massachusetts Continuing Legal Education's Annual New England Intellectual Property Conference. An active member of the Boston Bar Association, he received the association’s President’s Award in 2016 for his longstanding service on its Amicus Committee. Mr. Fitzpatrick holds law degrees from Boston University School of Law (Juris Doctor, 1993), The Honorable Society of King's Inns, Dublin (Barrister-at-Law, 1988), and University College Dublin (Bachelor of Civil Law, 1986), and he is admitted to practice in the Commonwealth of Massachusetts and in his native Republic of Ireland.