Adam Greenfield

Adam Greenfield is an accomplished intellectual property trial lawyer focusing on complex patent and trade secret litigation and licensing. His practice primarily involves high-stakes disputes in various venues, including U.S. district courts, the U.S. International Trade Commission (ITC), the Patent Trial and Appeal Board (PTAB), and the U.S. Court of Appeals for the Federal Circuit. Greenfield handles matters across a wide range of technologies, with a particular emphasis on electrical and computer technology, standard essential patents (SEPs), and fair, reasonable, and nondiscriminatory (FRAND) licensing. His industry experience spans AI, automotive, defense, energy, financial services, manufacturing, medical devices, computer networking, and consumer electronics.

Greenfield predominantly represents defendants, including operating companies, in patent infringement and trade secret cases. His tracked appearances reflect this preference, with one recorded appearance for the defendant in Nokia Technologies Oy v. Paramount. His representative experience includes securing dismissals for clients such as CertainTeed, Evapco, Kia, O-I Glass, Amazon, Capital One, Honda, and Jaguar Land Rover in multi-patent actions. He has a notable record of defense victories, including obtaining summary judgment of invalidity affirmed on appeal for Jaguar Land Rover and securing early dismissal and invalidation of patents on summary judgment for Capital One.

Adam Greenfield is currently a partner in the Intellectual Property Litigation Practice at Latham & Watkins, having rejoined the firm in August 2025. Prior to this, he was a partner at White & Case. His practice regularly involves proceedings before the Patent Trial and Appeal Board (PTAB).

He earned his J.D., magna cum laude, from the University of Illinois College of Law and holds a B.S. in Electrical Engineering, with honors, from the University of Illinois. Greenfield is admitted to practice in the District of Columbia and Illinois, and before the U.S. Patent and Trademark Office. He also previously served as a law clerk to Judge Kimberly Moore of the U.S. Court of Appeals for the Federal Circuit.