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.

1280 firms · 7744 total appearances across 2683 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
Zuber Lawler & Del Duca—33District of Delaware, U.S. Court of Appeals for the Federal Circuit (CAFC)(2)District of Delaware(1)Counsel for Defendant · counsel · Lead Counsel
Tesla, Inc.213Patent Trial and Appeal Board (PTAB)(2)District Court, E.D. Texas(1)In-house counsel · Patent Attorney · in-house counsel
Ballard Spahr123Texas Western District Court(2)Texas Eastern District Court(1)Counsel · Associate Counsel
RL Drolet Patent Prosecution Services123Patent Trial and Appeal Board (PTAB)(2)Southern District of Florida(1)lead counsel · patent counsel · Lead Counsel
Shutts & Bowen123PTAB(1)Southern District of Florida(1)Counsel · Partner · Senior Associate
Bey & Cotropia213Patent Trial and Appeal Board (PTAB)(1)U.S. Court of Appeals for the Federal Circuit(1)U.S. District Court for the Eastern District of Virginia, Norfolk Division(1)Local Counsel · appellate counsel
Gentry Locke2—2Virginia Western District Court(2)local counsel
The Devlin Law Firm2—2Court of Appeals for the Federal Circuit(1)D. Del.(1)lead counsel · of counsel · counsel
Knechtel, Demeur & Samlan2—2Court of Appeals for the Federal Circuit(1)U.S. District Court for the Northern District of Georgia(1)of counsel
Fairfield and Woods2—2Court of Appeals for the Federal Circuit(2)of counsel · Lead Counsel
Woods Rogers Vandeventer Black112U.S. District Court for the Eastern District of Virginia(1)Virginia Western District Court(1)Local Counsel · local counsel
YK Law112California Central District Court(1)Illinois Northern District Court(1)Lead Counsel · attorney of record
Emerson Thomson Bennett—22Texas Eastern District Court(2)lead counsel
Dykema Gossett112Texas Eastern District Court(1)Texas Western District Court(1)counsel · local counsel
Bracewell—22Texas Eastern District Court(1)Utah District Court(1)counsel · of counsel · lead counsel
Yetter Coleman—22U.S. District Court for the District of Delaware(1)U.S. District Court for the Western District of Texas(1)Lead Counsel · local counsel
Amster, Rothstein & Ebenstein112New York Southern District Court(1)U.S. District Court for the Eastern District of New York(1)lead counsel · of counsel · supervising counsel
Sorey & Gilliland2—2Texas Eastern District Court(1)U.S. District Court for the Western District of Texas(1)lead counsel · local counsel
Ireland, Carroll & Kelley112United States District Court for the Eastern District of Texas(2)local counsel
Carlson, Gaskey & Olds112U.S. District Court for the Northern District of Illinois(1)USPTO Patent Trial and Appeal Board (PTAB)(1)Of Counsel · counsel · lead counsel
Niro, Haller & Niro112U.S. District Court for the District of Colorado(1)U.S. Patent Trial and Appeal Board (PTAB)(1)counsel · lead counsel
The Stafford Davis2—2Texas Eastern District Court(1)U.S. District Court for the District of Delaware(1)lead counsel · counsel
Thompson & Knight112Texas Eastern District Court(2)local counsel · Counsel for Plaintiff
Brownstein Hyatt Farber Schreck—22U.S. District Court for the District of Nevada(2)Counsel · local counsel · Lead Counsel
Katten Muchin Rosenman2—2Patent Trial and Appeal Board (PTAB)(2)lead counsel · backup counsel