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
Wiley Rein	1	1	2	Patent Trial and Appeal Board (PTAB) of the USPTO(1)Texas Eastern District Court(1)	Counsel
Apple Inc.	—	2	2	California Northern District Court(1)U.S. District Court for the Western District of Texas, Midland/Odessa(1)	Senior Litigation Counsel · Chief IP Counsel · Counsel, IP Litigation
Pinckney, Weidinger, Urban & Joyce	—	2	2	Delaware District Court(1)Patent Trial and Appeal Board (PTAB)(1)	local counsel · Local Counsel
Weintraub Genshlea Chediak Sproul	—	2	2	Patent Trial and Appeal Board (PTAB)(2)	Counsel · Attorney for Patent Owner
Dowell Commercial Litigation	—	2	2	Patent Trial and Appeal Board (PTAB)(2)	Lead Counsel
The Law Offices of David A. Gerasimow	2	—	2	Texas Eastern District Court(1)Texas Western District Court(1)	lead counsel · attorney
DiCello Levitt	2	—	2	New York Southern District Court(2)	Partner · significant counsel
Tabet Divito & Rothstein	1	1	2	Patent Trial and Appeal Board (PTAB)(1)	local counsel · Local Counsel
Groombridge, Wu, Baughman & Stone	—	2	2	Patent Trial and Appeal Board (PTAB)(1)Texas Eastern District Court(1)	Partner · counsel
Hecht Partners	—	2	2	Patent Trial and Appeal Board (PTAB)(2)	Lead Counsel
Cork Maloney	—	2	2	Patent Trial and Appeal Board (PTAB)(2)	Back-Up Counsel · Counsel
Walker Stevens Cannom	—	2	2	Delaware District Court(2)	lead counsel · local counsel
Kramer	2	—	2	Texas Western District Court(1)U.S. District Court for the Western District of Texas, Waco Division (WDTX)(1)	Lead Counsel · Counsel · Partner
Weintraub Tobin Chediak Coleman Grodin Law Corporation	2	—	2	U.S. District Court for the Northern District of California(1)U.S. District Court for the Northern District of California, San Jose Division(1)	counsel · lead counsel
Fletcher Yoder	1	1	2	Patent Trial and Appeal Board (PTAB)(1)Texas Eastern District Court(1)	Counsel · lead counsel · Lead Counsel
Mintz	—	2	2	Delaware District Court(2)	Lead Counsel · Co-chair of the ITC Practice, Member in IP Litigation Practice
Sills Cummis & Gross	1	1	2	New Jersey District Court(1)PTAB (United States Patent and Trademark Office)(1)	lead counsel; local counsel · Local Counsel
Stamoulis & Butsika	2	—	2	U.S. District Court for the District of Delaware(2)	lead counsel · local counsel
Norton Rose Fulbright	1	1	2	Court of Appeals for the Federal Circuit(1)Texas Eastern District Court(1)	of counsel · counsel
Adduci, Mastriani & Schaumberg	2	—	2	U.S. District Court for the Eastern District of Virginia(2)	local counsel
Ciccarelli Law Firm	1	1	2	Texas Western District Court(1)U.S. District Court for the Eastern District of Virginia(1)	Counsel · local counsel
Moore & Van Allen	—	2	2	North Carolina Western District Court(2)	Local Counsel · lead counsel
Resnick & Louis	2	—	2	Delaware District Court(1)United States District Court of Delaware(1)	counsel · Of Counsel/Local Counsel
The Pitcock Law Group	1	1	2	Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Eastern District of Texas(1)	lead counsel · Lead Counsel
Chaudhari Law	1	1	2	Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Eastern District of Texas(1)	counsel · Counsel