Counsel registry

Representatives

Law firms representing parties in tracked US patent litigation. Counts come from per-case “Plaintiff representatives” and “Defendant representatives” sections. A firm with multiple attorneys on one case counts as a single appearance per side. Click any column header to sort; defaults to total cases, descending.

1466 firms · 10901 total appearances across 3732 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
Irell & Manella403575Texas Eastern District Court(19)Patent Trial and Appeal Board (PTAB)(16)U.S. District Court for the Northern District of California(5)lead counsel · of counsel · Counsel
Sidley Austin255580Patent Trial and Appeal Board(25)U.S. District Court for the Eastern District of Texas(15)U.S. District Court for the District of Delaware(8)lead counsel · counsel · Lead Counsel
Potter Anderson & Corroon186280U.S. District Court for the District of Delaware(61)USPTO Patent Trial and Appeal Board (inter partes review)(6)D. Del.(3)local counsel · Local Counsel · lead local counsel
Alston & Bird344680Texas Eastern District Court(28)Patent Trial and Appeal Board (PTAB)(18)U.S. District Court for the Eastern District of Texas, Marshall Division(6)counsel · lead counsel · Counsel
Baker Botts355085Patent Trial and Appeal Board (PTAB)(22)U.S. District Court for the Eastern District of Texas(15)U.S. District Court for the District of Delaware(9)lead counsel · of counsel · Counsel
Paul Hastings473986Patent Trial and Appeal Board (PTAB)(27)U.S. District Court for the District of Delaware(16)U.S. District Court for the District of New Jersey(9)of counsel · lead counsel · Lead Counsel
Gibson, Dunn & Crutcher246488U.S. District Court for the District of Delaware(17)Patent Trial and Appeal Board (PTAB)(16)Texas Eastern District Court(14)lead counsel · counsel · of counsel
Sterne, Kessler, Goldstein & Fox315889Patent Trial and Appeal Board (PTAB)(55)Delaware District Court(7)Court of Appeals for the Federal Circuit(6)lead counsel · counsel · Counsel
Wilmer Cutler Pickering Hale and Dorr197190Patent Trial and Appeal Board (PTAB)(24)U.S. Court of Appeals for the Federal Circuit(14)Texas Eastern District Court(10)lead counsel · counsel · back-up counsel
The Dacus Firm405595U.S. District Court for the Eastern District of Texas(42)U.S. District Court for the Western District of Texas(18)Patent Trial and Appeal Board (PTAB)(6)local counsel · Local Counsel · of counsel
Susman Godfrey8228110Texas Eastern District Court(30)Texas Western District Court(18)Patent Trial and Appeal Board(17)lead counsel · counsel · Lead Counsel
Nelson Bumgardner Conroy9221113U.S. District Court for the Eastern District of Texas(24)USPTO Patent Trial and Appeal Board(18)U.S. District Court for the Western District of Texas(9)lead counsel · back-up counsel · Counsel
Capshaw DeRieux9916115U.S. District Court for the Eastern District of Texas(61)U.S. District Court for the Western District of Texas(18)Patent Trial and Appeal Board (PTAB)(8)local counsel · Local Counsel · lead counsel
McKool Smith8235117Texas Eastern District Court(38)Patent Trial and Appeal Board (PTAB)(29)U.S. District Court for the District of Delaware(12)lead counsel · counsel · Counsel
Ward, Smith & Hill12015135U.S. District Court for the Eastern District of Texas(87)Texas Western District Court(17)Patent Trial and Appeal Board (PTAB)(9)local counsel · Local Counsel · Of Counsel
Kirkland & Ellis4796143Texas Eastern District Court(32)Patent Trial and Appeal Board (PTAB)(26)U.S. District Court for the District of Delaware(12)lead counsel · counsel · Counsel
Miller Fair Henry12125146Texas Eastern District Court(98)Patent Trial and Appeal Board (PTAB)(16)Texas Western District Court(11)local counsel · Local Counsel · of counsel
Farnan11039149U.S. District Court for the District of Delaware(94)Patent Trial and Appeal Board (PTAB)(24)U.S. District Court for the District of Delaware, Judge Jennifer L. Hall(5)local counsel · Local Counsel · lead counsel
Perkins Coie52101153Patent Trial and Appeal Board (PTAB)(49)California Northern District Court(17)U.S. District Court for the Eastern District of Texas(12)lead counsel · Counsel · back-up counsel
Finnegan, Henderson, Farabow, Garrett & Dunner7682158Patent Trial and Appeal Board (PTAB)(69)Texas Eastern District Court(22)U.S. Court of Appeals for the Federal Circuit(14)lead counsel · back-up counsel · Counsel