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
Wilson Sonsini Goodrich & Rosati142034Patent Trial and Appeal Board (PTAB)(13)U.S. District Court for the District of Delaware(9)U.S. Court of Appeals for the Federal Circuit(2)lead counsel · of counsel · Counsel
Fenwick & West23234U.S. District Court for the Eastern District of Texas(9)U.S. District Court for the Western District of Texas(9)U.S. District Court for the District of Delaware(6)lead counsel · of counsel · Counsel
Cherry Johnson Siegmund James221032Texas Western District Court(18)Texas Northern District Court(2)PTAB(1)local counsel · Counsel · Local Counsel
Nelson Bumgardner Conroy24832U.S. District Court for the Eastern District of Texas(16)U.S. District Court for the Western District of Texas(7)Patent Trial and Appeal Board (PTAB)(5)Counsel · lead counsel · counsel
Goodwin Procter201232Patent Trial and Appeal Board (PTAB)(12)U.S. District Court for the Eastern District of Texas(7)Delaware District Court(3)Counsel · Lead Counsel · lead counsel
Greenberg Traurig171431Patent Trial and Appeal Board (PTAB)(10)Texas Eastern District Court(7)Delaware District Court(5)Counsel · counsel · Attorney
Weil, Gotshal & Manges82331Patent Trial and Appeal Board (PTAB)(5)U.S. District Court for the District of Delaware(5)U.S. District Court for the Western District of Texas(5)Lead Counsel · lead counsel · Counsel
Garteiser Honea30—30Texas Eastern District Court(23)U.S. District Court for the Western District of Texas(4)California Northern District Court(2)lead counsel · Counsel · Lead Counsel
Berger & Hipskind25530Eastern District of Texas(14)U.S. District Court for the Western District of Texas(3)Eastern District of Texas (E.D. Tex.)(2)lead counsel · Lead Counsel · Counsel
Knobbe, Martens, Olson & Bear171229Patent Trial and Appeal Board (PTAB)(11)U.S. District Court for the Northern District of California(6)U.S. District Court for the Central District of California(4)Counsel · lead counsel · Lead Counsel
Venable111829U.S. District Court for the District of New Jersey(6)USPTO Patent Trial and Appeal Board(5)U.S. District Court for the Eastern District of Texas(3)lead counsel · Lead Counsel · Of Counsel
Latham & Watkins72229U.S. District Court for the District of Delaware(9)Patent Trial and Appeal Board (PTAB)(8)Texas Western District Court(3)lead counsel · Of Counsel · Lead Counsel
Findlay Craft131629Texas Eastern District Court(17)Texas Western District Court(5)Patent Trial and Appeal Board (PTAB)(4)Local Counsel · local counsel · Counsel
Ziolkowski Patent Solutions Group171229Wisconsin Eastern District Court(11)Patent Trial and Appeal Board (PTAB)(8)U.S. District Court for the Central District of California(3)Counsel · co-counsel · Lead Counsel
Scheef & Stone141428U.S. District Court for the Eastern District of Texas(19)Patent Trial and Appeal Board(4)Texas Western District Court(3)local counsel · Local Counsel · Local Counsel/Lead Counsel
Ashby & Geddes131427U.S. District Court for the District of Delaware(19)Patent Trial and Appeal Board (PTAB)(4)Court of Appeals for the Federal Circuit(3)local counsel · Local Counsel · Lead Counsel
McAndrews, Held & Malloy161127Texas Eastern District Court(8)Delaware District Court(7)Patent Trial and Appeal Board (PTAB)(5)lead counsel · Of Counsel · Counsel
Daignault Iyer121527Patent Trial and Appeal Board (PTAB)(10)Virginia Eastern District Court(4)Texas Eastern District Court(3)Counsel · lead counsel · Lead Counsel
Duane Morris81826Delaware District Court(9)Patent Trial and Appeal Board (PTAB)(8)Texas Eastern District Court(3)Counsel · counsel · Partner
Mayer Brown91625Patent Trial and Appeal Board (PTAB)(9)U.S. District Court for the Eastern District of Texas(9)Texas Western District Court(2)counsel · Counsel · lead counsel
Covington & Burling101525Texas Eastern District Court(13)Patent Trial and Appeal Board (PTAB)(4)Texas Western District Court(3)Counsel · lead counsel · Lead Counsel
Husch Blackwell121224Wisconsin Eastern District Court(11)California Central District Court(5)Patent Trial and Appeal Board (PTAB)(3)Counsel · counsel · lead counsel
Wood Herron & Evans24—24Texas Eastern District Court(10)Arizona District Court(2)Florida Northern District Court(2)lead counsel · of counsel · Of Counsel
Bunsow De Mory16723U.S. District Court for the Eastern District of Texas(9)Patent Trial and Appeal Board (PTAB)(6)Delaware District Court(3)Counsel · lead counsel · Lead Counsel
Brooks Kushman51823Patent Trial and Appeal Board (PTAB)(8)Delaware District Court(4)Tennessee Eastern District Court(2)Counsel · lead counsel · Lead Counsel