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
Buchanan Ingersoll & Rooney	1	1	2	District of Delaware, U.S. Court of Appeals for the Federal Circuit (CAFC)(1)U.S. District Court for the Southern District of Iowa(1)	Counsel for Defendant · lead counsel · counsel
Schwegman Lundberg & Woessner	—	2	2	Patent Trial and Appeal Board (PTAB)(2)	of counsel · lead counsel
Kramer Alberti Lim & Tonkovich	2	—	2	U.S. District Court for the Western District of Texas(1)United States District Court for the Eastern District of Texas(1)	Likely Lead Counsel · Counsel
Cadwell Thomas	1	1	2	Delaware District Court(1)Patent Trial and Appeal Board (PTAB)(1)	Lead Counsel · Co-Counsel
Radulescu	1	1	2	Delaware District Court(1)Patent Trial and Appeal Board (PTAB)(1)	Of Counsel · lead counsel · Lead Counsel
Skipper Law	1	1	2	Eastern District of Texas, Marshall Division(1)Patent Trial and Appeal Board (PTAB)(1)	lead counsel · counsel
Lee & Ko	—	2	2	Eastern District of Texas, Marshall Division(2)	Counsel · Lead Counsel · Korean Counsel
Jeffer Mangels Butler & Mitchell	2	—	2	California Central District Court(1)U.S. District Court for the Southern District of Florida, Miami Division(1)	Lead Counsel · Partner
Klarquist	2	—	2	United States District Court for the Western District of Texas, Waco Division(1)Washington Western District Court(1)	local counsel · Lead Counsel
Patterson Thuente IP	1	1	2	California Northern District Court(1)PTAB(1)	Counsel
The Concept Law Group	1	1	2	Ohio Northern District Court(1)PTAB(1)	Partner, Registered Patent Attorney · Partner, Litigation and Entertainment Law · Associate
Renner Otto Boisselle & Sklar	1	1	2	Ohio Northern District Court(1)PTAB(1)	Partner · Associate Attorney, Registered Patent Attorney · lead counsel
A&O Shearman	2	—	2	Patent Trial and Appeal Board (PTAB)(2)	Petitioner Counsel · lead counsel
Carmichael IP	—	2	2	Patent Trial and Appeal Board (PTAB) of the United States Patent and Trademark Office (USPTO)(2)	Other Counsel · Lead Counsel · Partner
Loeb & Loeb	2	—	2	California Central District Court(1)Patent Trial and Appeal Board (PTAB)(1)	pro hac vice · lead counsel · counsel
Morris, Manning & Martin	1	1	2	Patent Trial and Appeal Board (PTAB)(2)	local counsel · Lead Counsel · Counsel
LashGoldberg	—	2	2	California Northern District Court(1)U.S. District Court for the Southern District of Florida(1)	local counsel · lead counsel · counsel
Kercsmar & O'Hara	1	1	2	Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Northern District of California(1)	Lead Counsel · lead counsel · counsel
Stearns Weaver Miller Weissler Alhadeff & Sitterson	2	—	2	Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Northern District of California(1)	counsel · Attorney
Lex Tecnica	—	2	2	Nevada District Court(2)	Local Counsel · local counsel
Meta Platforms	1	1	2	Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Western District of Washington(1)	in-house · In-House Counsel
Wilson Robertson & Astley	2	—	2	Texas Eastern District Court(2)	local counsel
KellDann Law	1	1	2	Patent Trial and Appeal Board (PTAB)(1)Texas Eastern District Court(1)	back-up counsel · Founding Partner, Managing Partner · Founding Partner, Head of Practice
Greenblum & Bernstein	—	2	2	Texas Eastern District Court(1)U.S. International Trade Commission (USITC)(1)	lead counsel · counsel
Cabello Hall Zinda	—	2	2	Patent Trial and Appeal Board (PTAB)(1)Texas Eastern District Court(1)	local counsel · lead counsel