Patrick J. McCarthy

Patrick J. McCarthy is a distinguished patent litigator whose practice focuses on complex technology disputes, primarily as a Partner in Goodwin Procter's Intellectual Property Litigation group in Washington, D.C.. He is an electrical engineer by background, lending him significant expertise in areas such as semiconductors, computers, wireless technologies, consumer electronics, and mechanical arts. His experience also extends to smartphone hardware and software, telecommunications, global positioning systems, networking, and automated vehicle systems.

McCarthy is recognized for his balanced practice, representing both patent holders and accused infringers. His caseload includes representing plaintiffs, as seen in his role as Lead Counsel for X1 Discovery, Inc. in its patent infringement suit against Microsoft Corporation, which involved patents related to search and discovery software. Concurrently, he also represented Microsoft Corporation as Pro Hac Vice counsel in a related matter against X1 Discovery, Inc., demonstrating his capacity to litigate effectively for both sides.

His notable accomplishments include securing a complete victory for major lightbulb companies in a Section 337 investigation before the International Trade Commission (ITC), a decision upheld by the Commissioners and currently on appeal. In June 2021, he led a trial team to a significant jury verdict for outdoor display manufacturers, where the jury found all remaining asserted patents to be both not infringed and invalid, earning him national "Litigator of the Week" recognition. McCarthy possesses extensive experience in ITC Section 337 investigations, having handled approximately forty such cases.

While specific records of him personally leading inter partes review (IPR) proceedings were not explicitly detailed, his firm, Goodwin Procter, handles IPRs for its clients, including those involved in the X1 Discovery v. Microsoft litigation. His deep involvement in parallel ITC proceedings often suggests familiarity with related patent validity challenges. He is an accomplished jury trial specialist.