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.

1280 firms · 7747 total appearances across 2684 cases with counsel data.

Firm	Plaintiff	Defendant	Total	Top courts	Top roles
O'Melveny & Myers	11	37	48	Patent Trial and Appeal Board (PTAB)(15)Texas Eastern District Court(13)U.S. District Court for the Western District of Texas(4)	Back-Up Counsel · lead counsel · Lead Counsel
Rabicoff Law	45	5	50	Texas Eastern District Court(28)Texas Western District Court(9)Patent Trial and Appeal Board(3)	lead counsel · Lead Counsel · of counsel
Desmarais	18	34	52	Texas Eastern District Court(14)U.S. District Court for the District of Delaware(10)Patent Trial and Appeal Board(8)	lead counsel · counsel · Lead Counsel
Irell & Manella	30	23	53	Texas Eastern District Court(20)Patent Trial and Appeal Board (PTAB)(8)U.S. District Court for the Western District of Texas(5)	lead counsel · Counsel · of counsel
Morrison & Foerster	13	43	56	Texas Western District Court(12)Texas Eastern District Court(11)Patent Trial and Appeal Board (PTAB)(9)	Lead Counsel · Counsel · lead counsel
Paul Hastings	24	33	57	Patent Trial and Appeal Board (PTAB)(19)Delaware District Court(11)U.S. District Court for the Eastern District of Texas(8)	lead counsel · Lead Counsel · counsel
Gibson, Dunn & Crutcher	8	51	59	Texas Eastern District Court(13)U.S. District Court for the District of Delaware(8)Patent Trial and Appeal Board (PTAB)(6)	Counsel · Lead Counsel · lead counsel
Potter Minton	14	46	60	U.S. District Court for the Eastern District of Texas(45)U.S. District Court for the Western District of Texas(3)E.D. Tex.(2)	local counsel · Local Counsel · counsel
Sterne, Kessler, Goldstein & Fox	24	39	63	Patent Trial and Appeal Board (PTAB)(34)Court of Appeals for the Federal Circuit(6)Delaware District Court(6)	Counsel · lead counsel · counsel
Wilmer Cutler Pickering Hale and Dorr	12	51	63	Patent Trial and Appeal Board (PTAB)(13)Delaware District Court(9)Texas Eastern District Court(9)	lead counsel · counsel · Counsel
Sidley Austin	18	46	64	Patent Trial and Appeal Board (PTAB)(17)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 & Corroon	16	48	64	U.S. District Court for the District of Delaware(52)D. Del.(3)U.S. Patent Trial and Appeal Board (PTAB)(3)	local counsel · Local Counsel · Potential Local Counsel
The Dacus Firm	36	32	68	U.S. District Court for the Eastern District of Texas(41)U.S. District Court for the Western District of Texas(14)Patent Trial and Appeal Board (PTAB)(3)	local counsel · Local Counsel · of counsel
Baker Botts	33	37	70	Patent Trial and Appeal Board (PTAB)(20)U.S. District Court for the Eastern District of Texas(14)U.S. District Court for the District of Delaware(8)	lead counsel · Counsel · of counsel
Alston & Bird	30	40	70	Texas Eastern District Court(28)Patent Trial and Appeal Board (PTAB)(14)Delaware District Court(4)	counsel · Counsel · lead counsel
Susman Godfrey	58	19	77	Texas Eastern District Court(28)Texas Western District Court(16)U.S. District Court for the District of Delaware(7)	lead counsel · Lead Counsel · Counsel
Farnan	60	32	92	U.S. District Court for the District of Delaware(69)Patent Trial and Appeal Board (PTAB)(11)Texas Western District Court(2)	local counsel · Local Counsel · Likely Local Counsel
Perkins Coie	36	59	95	Patent Trial and Appeal Board (PTAB)(30)California Northern District Court(17)Court of Appeals for the Federal Circuit(7)	Counsel · lead counsel · counsel
McKool Smith	66	30	96	Texas Eastern District Court(41)Patent Trial and Appeal Board (PTAB)(21)Delaware District Court(9)	lead counsel · counsel · Lead Counsel
Kirkland & Ellis	26	78	104	Texas Eastern District Court(35)Patent Trial and Appeal Board (PTAB)(11)U.S. District Court for the Northern District of Illinois(9)	lead counsel · Counsel · Lead Counsel
Capshaw DeRieux	89	16	105	U.S. District Court for the Eastern District of Texas(60)U.S. District Court for the Western District of Texas(17)Patent Trial and Appeal Board (PTAB)(8)	local counsel · Local Counsel · lead counsel
Finnegan, Henderson, Farabow, Garrett & Dunner	49	60	109	Patent Trial and Appeal Board (PTAB)(42)Texas Eastern District Court(22)Delaware District Court(10)	lead counsel · Counsel · Lead Counsel
Ward, Smith & Hill	108	16	124	Texas Eastern District Court(87)Texas Western District Court(17)U.S. District Court for the Eastern District of Texas, Marshall Division(6)	local counsel · Local Counsel · Of Counsel
Morris, Nichols, Arsht & Tunnell	56	76	132	Delaware District Court(100)PTAB(4)Court of Appeals for the Federal Circuit(3)	local counsel · Local Counsel · Counsel
Miller Fair Henry	114	27	141	Texas Eastern District Court(99)Patent Trial and Appeal Board (PTAB)(15)Texas Western District Court(11)	local counsel · Local Counsel · of counsel