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
Carter Arnett538Patent Trial and Appeal Board (PTAB)(3)United States District Court for the Western District of Texas(3)U.S. Court of Appeals for the Federal Circuit(1)Attorney · Counsel · Attorney of record
Brown Rudnick538Patent Trial and Appeal Board (PTAB)(3)Texas Eastern District Court(3)California Central District Court(1)Counsel · lead counsel · Partner
Siebman, Forrest, Burg & Smith358Texas Eastern District Court(6)Patent Trial and Appeal Board (PTAB)(2)Local Counsel · lead counsel · local counsel
J. Wesley Hill8—8Texas Eastern District Court(8)local counsel · Local Counsel · lead counsel
Lowenstein & Weatherwax178Patent Trial and Appeal Board (PTAB)(7)Virginia Eastern District Court(1)Counsel · Lead Counsel · counsel
Spencer Fane268Patent Trial and Appeal Board (PTAB)(3)Arizona District Court(2)United States District Court, District of Nevada(2)Partner · local counsel · Counsel
Chachkes Law448Texas Eastern District Court(5)Attorney · Attorney for Defendants · Principal Attorney
Lewis Brisbois Bisgaard & Smith448U.S. District Court for the Central District of California(5)U.S. District Court for the District of Delaware(2)U.S. District Court for the Eastern District of Texas(1)Lead Counsel · lead counsel · 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
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
Holland & Hart347Wyoming District Court(3)Texas Eastern District Court(2)Texas Western District Court(1)Of Counsel · Counsel of Record · counsel
Crowell & Moring257Patent Trial and Appeal Board (PTAB)(2)Court of Appeals for the Federal Circuit(1)Delaware District Court(1)counsel · Lead Counsel · lead 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
Cahill Gordon & Reindel347Delaware District Court(2)Texas Western District Court(2)E.D. Texas(1)Lead Counsel · Counsel of record · Counsel (admitted Pro Hac Vice)
Knobbe Martens347California 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
Volpe Koenig167Patent Trial and Appeal Board (PTAB)(6)New York Southern District Court(1)Counsel for Patent Owner · lead counsel · Shareholder
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
Davis Firm426Patent Trial and Appeal Board (PTAB)(3)District Court, E.D. Texas(1)Texas Eastern District Court(1)local counsel · Counsel for Petitioner · counsel
Womble Bond Dickinson (US)426U.S. District Court for the District of Delaware(2)U.S. Patent Trial and Appeal Board (PTAB)(2)Court of Appeals for the Federal Circuit(1)Of Counsel · pro hac vice counsel · counsel
Foster, Murphy, Altman & Nickel426Texas Eastern District Court(3)Texas Western District Court(1)U.S. District Court for the Central District of California(1)Counsel · lead counsel · Of Counsel
Sullivan & Cromwell336Patent Trial and Appeal Board (PTAB)(2)Virginia Eastern District Court(2)U.S. District Court for the Eastern District of Virginia, Norfolk Division(1)Counsel · Appellate Counsel · lead counsel
Jenner & Block156Delaware District Court(2)Patent Trial and Appeal Board (PTAB)(2)Court of Appeals for the Federal Circuit(1)Counsel · Of Counsel · lead counsel
Charhon, Callahan, Robson & Garza156Patent Trial and Appeal Board(2)Court of Appeals for the Federal Circuit(1)U.S. District Court for the Eastern District of Texas(1)counsel · lead counsel · Likely Local Counsel