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.

1242 firms · 7315 total appearances across 2525 cases with counsel data.

Firm	Plaintiff	Defendant	Total	Top courts	Top roles
Nelson Bumgardner Conroy	24	8	32	U.S. District Court for the Eastern District of Texas(16)U.S. District Court for the Western District of Texas(7)Patent Trial and Appeal Board (PTAB)(5)	Counsel · lead counsel · counsel
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo	14	17	31	Patent Trial and Appeal Board (PTAB)(14)Texas Western District Court(4)Court of Appeals for the Federal Circuit(2)	Lead Counsel · Counsel · lead counsel
Fenwick & West	2	29	31	U.S. District Court for the Eastern District of Texas(9)U.S. District Court for the Western District of Texas(9)Delaware District Court(5)	lead counsel · of counsel · Counsel
Cherry Johnson Siegmund James	21	10	31	Texas Western District Court(17)Texas Northern District Court(2)PTAB(1)	local counsel · Counsel · Local Counsel
Goodwin Procter	19	12	31	Patent Trial and Appeal Board (PTAB)(11)U.S. District Court for the Eastern District of Texas(7)Delaware District Court(3)	Counsel · Lead Counsel · lead counsel
Knobbe, Martens, Olson & Bear	17	12	29	Patent Trial and Appeal Board (PTAB)(11)U.S. District Court for the Northern District of California(6)U.S. District Court for the Central District of California(4)	Counsel · lead counsel · Lead Counsel
Venable	11	18	29	U.S. District Court for the District of New Jersey(6)USPTO Patent Trial and Appeal Board(5)U.S. District Court for the Eastern District of Texas(3)	lead counsel · Lead Counsel · Of Counsel
Findlay Craft	13	16	29	Texas Eastern District Court(17)Texas Western District Court(5)Patent Trial and Appeal Board (PTAB)(4)	Local Counsel · local counsel · Counsel
Ziolkowski Patent Solutions Group	17	12	29	Wisconsin Eastern District Court(11)Patent Trial and Appeal Board (PTAB)(8)U.S. District Court for the Central District of California(3)	Counsel · co-counsel · Lead Counsel
Garteiser Honea	28	—	28	Texas Eastern District Court(21)U.S. District Court for the Western District of Texas(4)California Northern District Court(2)	lead counsel · Counsel · Lead Counsel
Greenberg Traurig	16	12	28	Patent Trial and Appeal Board (PTAB)(10)Texas Eastern District Court(6)Delaware District Court(5)	Counsel · counsel · Attorney
McAndrews, Held & Malloy	16	11	27	Texas Eastern District Court(8)Delaware District Court(7)Patent Trial and Appeal Board (PTAB)(5)	lead counsel · Of Counsel · Counsel
Daignault Iyer	12	15	27	Patent Trial and Appeal Board (PTAB)(10)Virginia Eastern District Court(4)Texas Eastern District Court(3)	Counsel · lead counsel · Lead Counsel
Scheef & Stone	13	14	27	U.S. District Court for the Eastern District of Texas(18)Patent Trial and Appeal Board(4)Texas Western District Court(3)	local counsel · Local Counsel · Local Counsel/Lead Counsel
Latham & Watkins	7	20	27	U.S. District Court for the District of Delaware(9)Patent Trial and Appeal Board (PTAB)(7)Texas Western District Court(3)	lead counsel · Of Counsel · Lead Counsel
Weil, Gotshal & Manges	5	22	27	U.S. District Court for the Western District of Texas(5)Patent Trial and Appeal Board (PTAB)(4)Texas Eastern District Court(4)	lead counsel · Lead Counsel · Counsel
Ashby & Geddes	12	14	26	U.S. District Court for the District of Delaware(19)Court of Appeals for the Federal Circuit(3)Patent Trial and Appeal Board (PTAB)(3)	local counsel · Local Counsel · Lead Counsel
Mayer Brown	9	16	25	Patent Trial and Appeal Board (PTAB)(9)U.S. District Court for the Eastern District of Texas(9)Texas Western District Court(2)	counsel · Counsel · lead counsel
Covington & Burling	10	15	25	Texas Eastern District Court(13)Patent Trial and Appeal Board (PTAB)(4)Texas Western District Court(3)	Counsel · lead counsel · Lead Counsel
Husch Blackwell	12	12	24	Wisconsin Eastern District Court(11)California Central District Court(5)Patent Trial and Appeal Board (PTAB)(3)	Counsel · counsel · lead counsel
Wood Herron & Evans	24	—	24	Texas Eastern District Court(10)Arizona District Court(2)Florida Northern District Court(2)	lead counsel · of counsel · Of Counsel
Bunsow De Mory	16	7	23	U.S. District Court for the Eastern District of Texas(9)Patent Trial and Appeal Board (PTAB)(6)Delaware District Court(3)	Counsel · lead counsel · Lead Counsel
Jackson Walker	6	17	23	Texas Eastern District Court(5)U.S. District Court for the Western District of Texas(5)Patent Trial and Appeal Board (PTAB)(4)	counsel · local counsel · Counsel
Duane Morris	7	16	23	Patent Trial and Appeal Board (PTAB)(8)Delaware District Court(7)Texas Eastern District Court(3)	Counsel · counsel · Partner
Kramer Levin Naftalis & Frankel	16	6	22	U.S. District Court for the District of Delaware(4)U.S. District Court for the Eastern District of Texas(4)USPTO Patent Trial and Appeal Board (PTAB)(4)	Lead Counsel · lead counsel · Of Counsel