Eric Dittmann

Eric W. Dittmann is global co-chair of the Intellectual Property practice at Paul Hastings, where he oversees the firm’s 100-plus lawyer IP group. Recognized as one of the nation’s leading IP litigators, Eric possesses extensive first-chair experience representing clients in patent litigations, post-grant proceedings, arbitrations, and appellate disputes across a wide range of technologies, with a particular emphasis on the pharmaceutical, biotechnology, and medical device industries. He is regularly trusted by some of the world’s most prominent companies to lead their most critical and business-defining IP disputes. Clients praise him as “an excellent attorney who brings a brilliant strategic mind to every issue” and “an excellent strategist and litigator” (Chambers USA 2025 — Intellectual Property: Patent).

Eric has repeatedly secured high-profile victories that have set significant legal precedents and garnered national industry and media attention. In a biologics jury trial win for AbbVie/Allergan in Delaware federal court, his team established infringement of three Botox®-related patents and obtained $56 million in damages based on a 27% reasonable royalty — tied for the highest percentage ever awarded in a pharmaceutical patent case.

Eric and his teams also secured a complete summary judgment defense win for bluebird bio Inc. and affiliates in a $2 billion patent dispute with San Rocco Therapeutics; a series of bet-the-company successes for JSR Life Sciences across district court, PTAB, and Federal Circuit proceedings; and a seven-year ITC exclusion order for Viking Therapeutics that led to a “Litigator of the Week” recognition by The American Lawyer. He has also played a leading role in BioNTech’s ongoing global COVID-19 vaccine patent disputes. Beyond the life sciences sector, Eric has also spearheaded semiconductor litigation for Inpria (a subsidiary of JSR Corporation), including defeating a preliminary injunction motion that threatened to derail a $6.4 billion acquisition by a Japanese government-controlled entity.

Before entering private practice, Eric served as a law clerk to the Honorable Judge Alan D. Lourie of the U.S. Court of Appeals for the Federal Circuit.

Seton Hall Law School, J.D. (summa cum laude, Associate Editor of the Seton Hall Law Review)

Rutgers University College of Engineering, B.S. in Mechanical Engineering (with High Honors)