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.

1445 firms · 10668 total appearances across 3630 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
Morris, Manning & Martin156N.D. Ga.(2)Patent Trial and Appeal Board (PTAB)(2)C.D. Cal.(1)lead counsel · local counsel · Lead Counsel
Loeb & Loeb6—6U.S. District Court for the District of Delaware(2)California Central District Court(1)Patent Trial and Appeal Board (PTAB)(1)pro hac vice · of counsel · lead counsel
Lerner David Littenberg Krumholz & Mentlik246U.S. District Court for the District of Delaware(4)United States Patent and Trademark Office, Patent Trial and Appeal Board(2)lead counsel · backup counsel · 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
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 · defense counsel · Counsel
BakerHostetler426Delaware District Court(2)Delaware Supreme Court(1)Patent Trial and Appeal Board (PTAB)(1)Counsel · Counsel (argued) · Local 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
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
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
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
Banie & Ishimoto516California Central District Court(2)N.D. Cal.(1)U.S. District Court(1)lead counsel · local counsel · counsel
Phillips, McLaughlin & Hall156U.S. District Court for the District of Delaware(5)D. Del.(1)local counsel · Local 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
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
Baker & Hostetler—66C.D. Cal.(3)District of Delaware(1)District of Delaware, U.S. Court of Appeals for the Federal Circuit (CAFC)(1)lead counsel · of counsel · local 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
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
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
Foster, Murphy, Altman & Nickel426Texas Eastern District Court(3)Texas Western District Court(1)U.S. District Court for the Central District of California(1)Counsel · lead counsel · Of 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