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
Steptoe & Johnson224Texas Eastern District Court(2)California Northern District Court(1)U.S. District Court for the Northern District of West Virginia; U.S. Court of Appeals for the Federal Circuit(1)Counsel · local counsel · Appearing Counsel
Foley Hoag—44Patent Trial and Appeal Board (PTAB)(4)Lead Counsel · Counsel · Back-up Counsel
Greene Espel314Minnesota District Court(2)Patent Trial and Appeal Board (PTAB)(1)Local Counsel · Attorney · local counsel
Wilson, Robertson & Vandeventer224Texas Eastern District Court(3)Local Counsel · lead counsel · local counsel
Bartlit Beck224Patent Trial and Appeal Board (PTAB)(1)U.S. Court of Appeals for the Federal Circuit(1)U.S. District Court for the District of Delaware(1)Lead Counsel · counsel · Counsel
Osborn Maledon224Arizona District Court(3)local counsel · Local Counsel
Kroub, Silbersher & Kolmykov224PTAB(2)Texas Western District Court(1)U.S. District Court for the Eastern District of Texas(1)Partner · Counsel for Patent Owner · Counsel of Record
Weintraub Tobin Chediak Coleman Grodin314California Northern District Court(2)Patent Trial and Appeal Board (PTAB)(1)United States District Court, Northern District of California, San Jose Division(1)counsel · lead counsel · Attorney for Plaintiff
Willkie Farr & Gallagher224California Central District Court(1)District of New Jersey(1)Ohio Southern District Court(1)lead counsel · of counsel · Lead Counsel
Hatch Law134California Northern District Court(2)California Central District Court(1)United States District Court, District of Nevada(1)counsel · Counsel
Dentons US134Texas Eastern District Court(3)Lead Counsel · Partner · Local Counsel
Clement & Murphy4—4U.S. Court of Appeals for the Federal Circuit(2)U.S. District Court for the Eastern District of Virginia, Norfolk Division(1)United States District Court for the Eastern District of Virginia; U.S. Court of Appeals for the Federal Circuit (CAFC).(1)appellate counsel · Of Counsel · Appellate Counsel
Ortiz & Lopez4—4Illinois Northern District Court(2)California Northern District Court(1)Texas Eastern District Court(1)lead counsel
Slayden Grubert Beard145U.S. District Court for the Western District of Texas(2)Texas(1)U.S. District Court for the Eastern District of Texas(1)local counsel · Counsel · Local Counsel
Arnold & Porter235U.S. District Court for the Eastern District of Texas(2)New York Southern District Court(1)Patent Trial and Appeal Board (PTAB)(1)counsel · Of Counsel / Additional Counsel · Lead Counsel
Cherian415Court of Appeals for the Federal Circuit(2)U.S. District Court for the Eastern District of Texas(2)Patent Trial and Appeal Board(1)Counsel of Record · lead counsel · Of Counsel
Foster, Murphy, Altman & Nickel325U.S. District Court for the Eastern District of Texas(2)Texas Western District Court(1)U.S. District Court for the Central District of California(1)Counsel · lead counsel · Of Counsel
Dorsey & Whitney145Patent Trial and Appeal Board(1)U.S. District Court for the District of Delaware(1)U.S. District Court for the Eastern District of Texas(1)Counsel · of counsel · lead counsel
Jenner & Block145Delaware District Court(2)Patent Trial and Appeal Board (PTAB)(2)U.S. District Court for the Northern District of West Virginia; U.S. Court of Appeals for the Federal Circuit; PTAB(1)Counsel · Of Counsel · lead counsel
Morrison Foerster235Texas Western District Court(2)U.S. District Court for the District of Delaware(1)U.S. District Court for the Eastern District of Texas(1)Partner · lead counsel · partner
Cherian Harkins Dunham325Texas Eastern District Court(2)Court of Appeals for the Federal Circuit(1)Florida Southern District Court(1)Lead Counsel · Counsel · Of Counsel
Pillsbury Winthrop Shaw Pittman145U.S. District Court for the Southern District of California(2)Florida Northern District Court(1)U.S. District Court for the Eastern District of New York(1)lead counsel · counsel · Attorney for Defendant
Shore Chan DePumpo5—5U.S. District Court for the Eastern District of Texas(2)Texas Western District Court(1)U.S. District Court for the District of Delaware(1)local counsel · lead counsel · counsel
Dovel & Luner5—5Texas Eastern District Court(2)U.S. District Court for the Central District of California(1)U.S. District Court for the District of Delaware(1)Of Counsel · Lead Counsel · lead counsel
AddyHart415Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Central District of California(1)U.S. District Court for the Eastern District of Virginia(1)lead counsel · Lead Counsel · of counsel