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.

1245 firms · 7334 total appearances across 2532 cases with counsel data.

Firm	Plaintiff	Defendant	Total	Top courts	Top roles
Fee, Smith & Sharp	2	—	2	U.S. District Court for the Eastern District of Texas(2)	of counsel
The Cooper Law Group	2	—	2	U.S. District Court for the Eastern District of Texas(2)	Counsel · Lead Counsel
Brann & Isaacson	1	1	2	Texas Eastern District Court(1)U.S. District Court for the District of Delaware(1)	counsel · trial counsel · lead counsel
Microsoft Corporation	1	1	2	U.S. Court of Appeals for the Federal Circuit(1)U.S. District Court for the Eastern District of Texas(1)	Associate General Counsel · of counsel
D'Annunzio & D'Annunzio	2	—	2	D. Del.(2)	Lead Counsel · counsel
Phillips, McLaughlin & Hall	1	1	2	D. Del.(1)Delaware District Court(1)	local counsel · Local Counsel
The Heartfield Law Firm	—	2	2	E.D. Tex.(1)U.S. District Court for the Eastern District of Texas(1)	local counsel · Lead Counsel
Crenshaw, Ware & Martin	2	—	2	Court of Appeals for the Federal Circuit(1)U.S. District Court for the Eastern District of Virginia(1)	Local Counsel · lead counsel
Hall Estill	—	2	2	Patent Trial and Appeal Board(1)U.S. District Court for the Central District of California(1)	Counsel · lead counsel
Blackbird Technologies	2	—	2	U.S. District Court for the District of Delaware(2)	Lead Counsel · lead counsel / in-house
Lee Sullivan Shea & Smith	1	1	2	Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the District of Delaware(1)	attorney · Lead Counsel
King & Wood Mallesons	2	—	2	Patent Trial and Appeal Board (PTAB)(1)	counsel · Counsel · lead counsel
Progress	2	—	2	U.S. District Court for the Southern District of New York(2)	Special Counsel · Lead Counsel · Counsel
Hudnell Law Group	2	—	2	U.S. District Court for the Southern District of New York(2)	Counsel · Counsel for Plaintiff-Appellant
Clark Hill	—	2	2	Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Eastern District of Texas(1)	counsel · Lead Counsel
Samsung Electronics US IP Center	—	2	2	U.S. District Court for the Eastern District of Texas(2)	in-house
Roth & Abraham	—	2	2	United States Patent and Trademark Office, Patent Trial and Appeal Board(2)	Likely counsel · Counsel
Dell Technologies	—	2	2	Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Western District of Texas(1)	in-house · Senior Litigation Counsel for IP Matters · Legal Director, IP
Neal, Gerber & Eisenberg	1	1	2	Texas Eastern District Court(1)U.S. District Court for the Western District of Texas(1)	Counsel · lead counsel
Zuber Lawler	1	1	2	U.S. District Court for the Central District of California.(1)USPTO Patent Trial and Appeal Board.(1)	Counsel · Lead Counsel · Back-up Counsel
Offor Evans	1	1	2	U.S. District Court for the Eastern District of Texas(1)USPTO Patent Trial and Appeal Board(1)	Counsel
Warner Norcross + Judd	2	—	2	Michigan Western District Court(2)	Counsel
Dacus Firm	—	2	2	Texas Western District Court(1)U.S. District Court for the Eastern District of Texas(1)	Local Counsel for Defendant · local counsel
Thompson Hine	1	1	2	Patent Trial and Appeal Board (PTAB)(1)US District Court, California Northern District Court(1)	lead counsel · Partner · counsel (to be admitted pro hac vice)
Simpson Thacher & Bartlett	1	1	2	U.S. District Court for the Eastern District of Texas, Marshall Division(1)	Lead Counsel · lead counsel