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.

1249 firms · 7347 total appearances across 2539 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
Klarquist Sparkman246Patent Trial and Appeal Board (PTAB) of the USPTO(3)Texas Eastern District Court(2)U.S. District Court for the Western District of Washington(1)lead counsel · counsel · of counsel
Carter Arnett426Patent Trial and Appeal Board (PTAB) of the USPTO(2)United States District Court for the Western District of Texas(2)U.S. Court of Appeals for the Federal Circuit(1)Attorney · local counsel · Counsel
Key Kesan Dallmann6—6U.S. District Court for the Eastern District of Texas(3)U.S. District Court for the Western District of Texas(3)Lead Counsel · lead or primary counsel · Counsel
Reinhart Boerner Van Deuren156Wisconsin Eastern District Court(6)local counsel · Counsel · counsel
Miller Johnson336Patent Trial and Appeal Board (PTAB)(3)Michigan Western District Court(2)United States District Court for the Western District of Michigan, Southern Division(1)Counsel · Lead Counsel · Attorney
Kellogg, Hansen, Todd, Figel & Frederick516U.S. District Court for the Northern District of West Virginia(3)U.S. International Trade Commission(2)Texas Eastern District Court(1)lead counsel · counsel · Counsel
BakerHostetler426Delaware District Court(2)Delaware Supreme Court(1)Patent Trial and Appeal Board (PTAB)(1)Counsel · Counsel (argued) · Local Counsel
Knobbe Martens336California Northern District Court(1)Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Central District of California(1)counsel · lead counsel · key counsel
Padmanabhan & Dawson156Patent Trial and Appeal Board (PTAB)(5)Delaware District Court(1)Counsel · lead counsel · Lead Counsel
Fredrikson & Byron336Patent Trial and Appeal Board (PTAB)(2)United States Judicial Panel on Multidistrict Litigation, centralized in the Southern District of Iowa.(2)Minnesota District Court(1)Counsel · counsel · local counsel
Volpe Koenig156Patent Trial and Appeal Board (PTAB)(5)New York Southern District Court(1)Counsel for Patent Owner · lead counsel · Attorney
Miller Barondess246U.S. District Court for the Central District of California(6)Lead Counsel · lead counsel · Counsel for Defendants
Lex Lumina336U.S. Court of Appeals for the Federal Circuit (CAFC)(2)U.S. Patent Trial and Appeal Board (PTAB)(2)Northern District of California(1)Counsel · Lead Counsel (for appeal) · Lead Counsel
The Webb Law Firm257U.S. District Court for the Western District of Texas(3)Court of Appeals for the Federal Circuit(1)Pennsylvania Eastern District Court(1)lead counsel · Counsel · local counsel
Tensegrity Law Group527U.S. District Court for the District of Delaware(3)Patent Trial and Appeal Board (PTAB)(2)California Northern District Court(1)lead counsel · pro hac vice · of counsel
Alavi Anaipakos7—7U.S. District Court for the Eastern District of Texas(5)California Northern District Court(1)U.S. District Court for the Eastern District of Texas, Marshall Division(1)Counsel · of counsel · lead counsel
Berger & Hipskind617U.S. District Court for the Western District of Texas(3)U.S. District Court for the Central District of California(2)Delaware District Court(1)of counsel · lead counsel · Lead Counsel
Holland & Hart347Wyoming District Court(3)Texas Eastern District Court(2)Texas Western District Court(1)Of Counsel · Counsel of Record · counsel
Manatt, Phelps & Phillips437Patent Trial and Appeal Board (PTAB)(2)Texas Western District Court(2)U.S. District Court for the Northern District of Georgia(2)Counsel · of counsel · lead counsel
Steptoe347Patent Trial and Appeal Board (PTAB)(5)Delaware District Court(1)Texas Eastern District Court(1)Attorney · Counsel · lead counsel
Davis Wright Tremaine437Arizona District Court(4)Patent Trial and Appeal Board (PTAB)(1)Washington Western District Court(1)Counsel · Litigation attorney · Of Counsel
Graves & Shaw527Court of Appeals for the Federal Circuit(2)Patent Trial and Appeal Board(2)U.S. District Court for the Western District of Texas, Waco Division(2)Counsel · lead counsel · Lead Counsel
MoloLamken628United States Court of Appeals for the Federal Circuit(2)United States Patent and Trademark Office, Patent Trial and Appeal Board(2)California Central District Court(1)counsel · Lead Counsel · Counsel
Cole Schotz448Texas Eastern District Court(4)Patent Trial and Appeal Board (PTAB)(2)California Central District Court(1)Attorney to be Noticed · attorney to be noticed · Counsel
Heyman Enerio Gattuso & Hirzel358Delaware District Court(5)D. Del.(1)local counsel · Local Counsel · Partner, likely local counsel