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.

1443 firms · 10622 total appearances across 3609 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
Rozier Hardt McDonough51455E.D. Tex.(13)Texas Eastern District Court(12)W.D. Tex.(6)lead counsel · Lead Counsel · local counsel
Jones Day233255Patent Trial and Appeal Board (PTAB)(13)Texas Eastern District Court(10)Delaware District Court(5)lead counsel · back-up counsel · counsel
Hecht Partners322254Patent Trial and Appeal Board(22)U.S. District Court for the Western District of Texas, Waco Division(7)Western District of Texas(6)lead counsel · counsel · of counsel
McCarter & English421254U.S. District Court for the District of Delaware(32)Patent Trial and Appeal Board(10)U.S. Court of Appeals for the Federal Circuit(6)local counsel · lead counsel · counsel
Goodwin Procter272754Patent Trial and Appeal Board (PTAB)(19)U.S. District Court for the Eastern District of Texas(7)Delaware District Court(6)lead counsel · counsel of record · Counsel
Mayer Brown203252USPTO Patent Trial and Appeal Board(22)U.S. District Court for the Eastern District of Texas(10)U.S. District Court for the District of Delaware(4)counsel · lead counsel · back-up counsel
Erise IP421052Patent Trial and Appeal Board (PTAB)(41)United States District Court for the Western District of Texas(5)U.S. District Court for the Northern District of Georgia(2)lead counsel · Lead Counsel · counsel
Fabricant302252Patent Trial and Appeal Board (PTAB)(21)U.S. District Court for the Eastern District of Texas(18)U.S. District Court for the Western District of Texas(5)lead counsel · Counsel · Lead Counsel
Greenberg Traurig272451Patent Trial and Appeal Board (PTAB)(17)United States District Court for the District of Delaware(9)Texas Eastern District Court(7)Counsel · back-up counsel · lead counsel
McAndrews, Held & Malloy282351USPTO Patent Trial and Appeal Board(15)Delaware District Court(9)Texas Eastern District Court(8)lead counsel · backup counsel · of counsel
Kilpatrick Townsend & Stockton222850U.S. Court of Appeals for the Federal Circuit(9)Patent Trial and Appeal Board(8)Texas Eastern District Court(8)lead counsel · counsel · Counsel
Fenwick & West44650U.S. District Court for the Western District of Texas(10)U.S. District Court for the Eastern District of Texas(9)Delaware District Court(8)lead counsel · of counsel · appellate counsel
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo292049Patent Trial and Appeal Board (PTAB)(20)Texas Western District Court(5)U.S. Court of Appeals for the Federal Circuit(4)of counsel · lead counsel · Lead Counsel
Duane Morris153348Patent Trial and Appeal Board (PTAB)(15)Delaware District Court(10)Texas Eastern District Court(4)lead counsel · trial counsel · Counsel
Caldwell Cassady & Curry371148U.S. District Court for the Southern District of Iowa(10)Texas Eastern District Court(9)Patent Trial and Appeal Board (PTAB)(8)Lead Counsel · lead counsel · Counsel
Findlay Craft252247Texas Eastern District Court(19)U.S. District Court for the Eastern District of Texas, Marshall Division(7)Texas Western District Court(5)local counsel · Local Counsel · lead counsel
Wilson Sonsini Goodrich & Rosati222547Patent Trial and Appeal Board (PTAB)(19)U.S. District Court for the District of Delaware(11)U.S. District Court for the Western District of Texas(3)lead counsel · of counsel · back-up counsel
Kasowitz Benson Torres281745Texas Western District Court(15)Patent Trial and Appeal Board (PTAB)(6)Texas Eastern District Court(6)Counsel · lead counsel · counsel
Kheyfits Belenky44—44W.D. Tex.(8)E.D. Tex.(7)S.D.N.Y.(7)lead counsel · of counsel · counsel
Reichman Jorgensen Lehman & Feldberg35944Texas Western District Court(8)U.S. District Court for the Eastern District of Texas, Marshall Division(8)Patent Trial and Appeal Board (PTAB)(6)lead counsel · counsel · of counsel