Phillip Citroën is an intellectual property associate in the Litigation Department in the firm’s Washington, D.C. office.
Mr. Citroën is a registered patent attorney practicing all aspects of patent-related work, including litigation before U.S. district courts and the U.S. International Trade Commission, post-grant proceedings before the Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office (USPTO), appeals, client counseling, and opinions. He also has experience prosecuting patent applications and handling reexamination proceedings before the USPTO. His experience spans a diverse set of technologies, including computer hardware and software, semiconductor devices, Internet and network communications, biotechnology, wireless technologies, digital imaging systems, electronic payment systems, e-commerce, security systems, and business methods. Mr. Citroën has represented petitioners and patent owners in dozens of inter partes review (IPR), covered business method review (CBM), and post-grant review (PGR) proceedings before the PTAB. In many instances, Mr. Citroën’s involvement has been coupled with parallel district court litigation. Mr. Citroën’s trial experience spans all stages of litigation, including managing fact and expert discovery; taking and defending depositions; preparing various discovery, claim construction, summary judgment, and pre- and post-trial briefs; preparing fact and expert witnesses for trial; oral argument; and participating in settlement negotiations.
Law360 recognized Mr. Citroën as a "Legal Lion" for his work for Google on IPRs where the PTAB invalidated three of Blackberry Ltd.'s patents related to smartphone technology.
Mr. Citroën has also gained valuable experience as in-house patent counsel for a Fortune 500 company that provides information infrastructure solutions.
USPTO Proposes Changing Claim Construction Standard for IPRs, PGRs, and CBMs
May 10, 2018
Aqua Products, Inc. v. Matal: Petitioners Bear the Burden of Establishing the Unpatentability of Amended Claims in IPR Proceedings
October 10, 2017
Recognized as the Post-Grant Firm of the Year by IAM Magazine
Paul Hastings was recognized as the Post-Grand Firm of the Year at Intellectual Asset Management's inaugural Global IP Awards. The award recognizes the achievements of the firm's Patent Trial and Appeal Board (PTAB) Team, which practices before the US Patent & Trial Office. Over the past year, the team's accomplishments include numerous post-grant proceeding victories for technology and life sciences clients - four of which were affirmed by the Court of Appeals for the Federal Circuit.
January 30, 2019