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.

1242 firms · 7315 total appearances across 2525 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
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
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
Fabricant, Rubino & Lambrianakos415U.S. District Court for the Eastern District of Texas(3)U.S. District Court for the Western District of Texas(1)U.S. Patent and Trademark Office, Patent Trial and Appeal Board (PTAB)(1)Counsel · lead counsel · counsel
Nyemaster Goode5—5U.S. District Court for the Southern District of Iowa(2)U.S. District Court for the District of Arizona(1)U.S. District Court for the District of Utah(1)Local Counsel · lead counsel · local counsel
Parsons Behle & Latimer415U.S. District Court for the District of Utah(5)local counsel
Hatch Law Group415U.S. District Court for the District of Utah(5)local counsel · Local Counsel · Counsel
Keker & Van Nest—55Texas Eastern District Court(2)California Central District Court(1)Rhode Island District Court(1)of counsel · lead counsel · trial counsel
Brown Rudnick235Patent Trial and Appeal Board (PTAB)(3)California Central District Court(1)U.S. District Court for the District of Massachusetts(1)Counsel · Partner · local counsel
Munger, Tolles & Olson145U.S. Court of Appeals for the Federal Circuit(2)PTAB(1)U.S. District Court for the Central District of California(1)co-lead counsel · Likely partner or senior associate · Counsel
Wiggin and Dana415Delaware District Court(3)Patent Trial and Appeal Board (PTAB)(1)Lead Counsel · Of Counsel · lead counsel