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.

1466 firms · 10871 total appearances across 3717 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
Francis Law Firm5—5United States District Court for the Eastern District of Kentucky, Lexington Division(2)E.D. Ky. (Lexington; Judge Karen K. Caldwell)(1)U.S. District Court, E.D. Ky. (Lexington Division)(1)local counsel
Sommers Schwartz5—5U.S. District Court for the District of Delaware(2)E.D. Mich. (Southern Division, Judge Robert H. Cleland)(1)U.S. District Court, Eastern District of Michigan(1)lead counsel · co-counsel · local counsel
Ni, Wang & Massand336U.S. District Court for the Western District of Texas(2)Court of Appeals for the Federal Circuit(1)Northern District of Texas(1)of counsel · local counsel · counsel of record
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
Flaster Greenberg426PTAB (Patent Trial and Appeal Board)(3)Court of Appeals for the Federal Circuit(2)North Carolina Middle District Court(1)local counsel · Counsel for Petitioner · of counsel
Thompson & Knight426C.D. Cal.(2)Texas Eastern District Court(2)Patent Trial and Appeal Board(1)appearing counsel · of counsel · core team
Katten Muchin Rosenman246U.S. District Court for the District of Delaware(3)Patent Trial and Appeal Board (PTAB)(2)U.S. District Court for the Northern District of West Virginia(1)lead counsel · merits counsel · outside counsel
Dorsey & Whitney156Patent Trial and Appeal Board(2)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
Morrison Foerster246U.S. District Court for the Western District of Texas(3)U.S. District Court for the District of Delaware(1)U.S. District Court for the Eastern District of Texas(1)of counsel · lead counsel · Partner
Nyemaster Goode6—6U.S. District Court for the Southern District of Iowa(3)U.S. District Court for the District of Arizona(1)U.S. District Court for the District of Utah(1)Local Counsel · local counsel · lead counsel
Siebman, Forrest, Burg & Smith246Texas Eastern District Court(5)Patent Trial and Appeal Board (PTAB), U.S. Patent and Trademark Office(1)Local Counsel · lead counsel
Phillips, McLaughlin & Hall156U.S. District Court for the District of Delaware(5)D. Del.(1)local counsel · Local Counsel
Banie & Ishimoto516California Central District Court(2)N.D. Cal.(1)U.S. District Court(1)lead counsel · local counsel · counsel
Leydig, Voit & Mayer246U.S. District Court for the District of Delaware(2)U.S. District Court for the Eastern District of Texas(2)U.S. District Court for the Northern District of West Virginia; U.S. Court of Appeals for the Federal Circuit; PTAB(1)of counsel · lead counsel · Counsel
Key Kesan Dallmann6—6U.S. District Court for the Eastern District of Texas(3)U.S. District Court for the Western District of Texas(3)Lead Counsel · lead or primary counsel · Counsel
Miller Johnson336Patent Trial and Appeal Board (PTAB)(3)Michigan Western District Court(2)United States District Court for the Western District of Michigan, Southern Division(1)Counsel · Lead Counsel · Attorney
Kellogg, Hansen, Todd, Figel & Frederick516U.S. District Court for the Northern District of West Virginia(3)U.S. International Trade Commission(2)Texas Eastern District Court(1)lead counsel · counsel · Counsel
Caldwell Cassady Curry336Patent Trial and Appeal Board(2)Texas Eastern District Court(1)U.S. District Court for the District of Arizona(1)lead counsel · Attorney for Plaintiff · Lead Counsel
BakerHostetler426Delaware District Court(2)Delaware Supreme Court(1)Patent Trial and Appeal Board (PTAB)(1)Counsel · Counsel (argued) · Local Counsel
Kramer Alberti Lim & Tonkovich336Patent Trial and Appeal Board(3)U.S. District Court for the Western District of Texas(1)United States District Court for the Eastern District of Texas(1)pro hac vice counsel · Likely Lead Counsel · lead counsel