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.

1443 firms · 10622 total appearances across 3609 cases with counsel data.

Firm	Plaintiff	Defendant	Total	Top courts	Top roles
Baker Botts	33	49	82	Patent Trial and Appeal Board (PTAB)(20)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
Potter Anderson & Corroon	19	61	80	U.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
Sidley Austin	25	54	79	Patent 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
Alston & Bird	33	45	78	Texas 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
Irell & Manella	41	35	76	Texas Eastern District Court(20)Patent Trial and Appeal Board (PTAB)(16)U.S. District Court for the Northern District of California(5)	lead counsel · of counsel · Counsel
Rabicoff Law	69	6	75	Texas Eastern District Court(33)Texas Western District Court(9)E.D. Tex.(4)	lead counsel · Lead Counsel · of counsel
DLA Piper	20	53	73	Patent Trial and Appeal Board (PTAB)(18)Texas Eastern District Court(14)U.S. District Court for the Western District of Texas(8)	lead counsel · Counsel · of counsel
Ramey	70	3	73	Western District of Texas(28)Texas Northern District Court(8)Texas Eastern District Court(7)	lead counsel · of counsel · Lead Counsel
Paul Hastings	33	38	71	Patent Trial and Appeal Board (PTAB)(26)Delaware District Court(12)U.S. District Court for the Eastern District of Texas(7)	lead counsel · of counsel · Lead Counsel
Morgan, Lewis & Bockius	24	46	70	Patent Trial and Appeal Board (PTAB)(26)U.S. District Court for the Western District of Texas(6)Texas Eastern District Court(4)	lead counsel · counsel · Counsel
Morrison & Foerster	17	49	66	Texas Western District Court(13)Patent Trial and Appeal Board (PTAB)(12)Texas Eastern District Court(11)	Lead Counsel · lead counsel · counsel
Bragalone Conroy	47	18	65	USPTO Patent Trial and Appeal Board(19)U.S. District Court for the District of Delaware(15)U.S. District Court for the Eastern District of Texas(14)	lead counsel · back-up counsel · of counsel
Winston & Strawn	20	45	65	Patent Trial and Appeal Board (PTAB)(16)U.S. District Court for the Eastern District of Texas(15)Delaware District Court(7)	lead counsel · Counsel · counsel
Potter Minton	11	53	64	U.S. District Court for the Eastern District of Texas(45)U.S. District Court for the Eastern District of Texas (Tyler Division)(3)U.S. District Court for the Western District of Texas(3)	local counsel · Local Counsel · counsel
Richards, Layton & Finger	17	47	64	U.S. District Court for the District of Delaware(46)USPTO Patent Trial and Appeal Board(8)U.S. Court of Appeals for the Federal Circuit(2)	local counsel · Local Counsel · lead counsel
Haynes and Boone	38	25	63	Patent Trial and Appeal Board (PTAB)(39)U.S. Court of Appeals for the Federal Circuit(8)Texas Western District Court(3)	Counsel · lead counsel · back-up counsel
Desmarais	23	40	63	Texas Eastern District Court(14)Patent Trial and Appeal Board(12)U.S. District Court for the District of Delaware(11)	lead counsel · counsel · Lead Counsel
Orrick, Herrington & Sutcliffe	20	40	60	Patent Trial and Appeal Board (PTAB)(12)Texas Eastern District Court(11)U.S. District Court for the District of Delaware(9)	lead counsel · Lead Counsel · Counsel
O'Melveny & Myers	17	43	60	Patent Trial and Appeal Board (PTAB)(19)Texas Eastern District Court(12)U.S. District Court for the Western District of Texas(5)	Back-Up Counsel · lead counsel · Counsel
Kramer Levin Naftalis & Frankel	40	19	59	Patent Trial and Appeal Board (PTAB)(23)U.S. District Court for the Eastern District of Virginia(7)U.S. Court of Appeals for the Federal Circuit(5)	trial counsel · lead counsel · Lead Counsel