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 · 10890 total appearances across 3725 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
Loeb & Loeb14115U.S. District Court for the District of Delaware(5)U.S. District Court for the District of New Jersey(5)Patent Trial and Appeal Board (PTAB)(2)of counsel · counsel · pro hac vice
Buether Joe & Carpenter16—16Texas Western District Court(7)U.S. District Court for the Eastern District of Texas(5)California Northern District Court(1)lead counsel · of counsel · counsel
Albritton Law Firm13316U.S. District Court for the Eastern District of Texas(11)Delaware District Court(1)U.S. District Court for the Eastern District of Texas, Tyler Division(1)local counsel · Local Counsel · of counsel
Sullivan & Cromwell10616Patent Trial and Appeal Board (PTAB)(4)U.S. Court of Appeals for the Federal Circuit(4)Virginia Eastern District Court(2)appellate counsel · counsel of record · lead counsel
White & Case7916Patent Trial and Appeal Board (PTAB)(5)U.S. Court of Appeals for the Federal Circuit(2)U.S. District Court for the Eastern District of Texas(2)lead counsel · counsel · Associate
Heyman Enerio Gattuso & Hirzel31316Delaware District Court(12)D. Del.(1)D. Del. (Judge Noreika)(1)local counsel · lead counsel · Local Counsel
Bragalone Olejko Saad15217Texas Eastern District Court(14)U.S. District Court for the District of Delaware(1)counsel · lead counsel · Lead Counsel
Shook, Hardy & Bacon71017California Central District Court(4)Texas Western District Court(3)USPTO Patent Trial and Appeal Board (PTAB)(3)counsel · lead counsel · Lead Counsel
Jenner & Block11617Delaware District Court(2)Patent Trial and Appeal Board (PTAB)(2)S.D.N.Y.(2)lead counsel · counsel · of counsel
Troutman Pepper Hamilton Sanders71017U.S. District Court for the Eastern District of Texas(7)PTAB(3)District of New Jersey(1)Counsel · local counsel · Lead Counsel
Herbert Smith Freehills Kramer (US)51217Patent Trial and Appeal Board (PTAB)(12)U.S. Court of Appeals for the Federal Circuit(2)Delaware District Court(1)Lead Counsel · Backup Counsel · Counsel
Nelson Bumgardner Albritton16117Patent Trial and Appeal Board (USPTO)(3)U.S. District Court, Western District of Texas(3)U.S. District Court for the Western District of Texas, Waco Division(2)lead counsel · attorney of record · counsel
Smith, Katzenstein & Jenkins71118U.S. District Court for the District of Delaware(14)Patent Trial and Appeal Board (PTAB)(3)U.S. Court of Appeals for the Federal Circuit(1)local counsel · Local Counsel
Dechert81018Patent Trial and Appeal Board (PTAB)(9)New Jersey District Court(5)Delaware District Court(1)lead counsel · of counsel · Counsel
Vinson & Elkins31518U.S. District Court for the Eastern District of Texas(6)U.S. District Court for the Western District of Texas(4)Patent Trial and Appeal Board (PTAB)(3)lead counsel · Attorney · of counsel
Fabricant Rubino Lambrianakos13518U.S. District Court for the Eastern District of Texas(10)Patent Trial and Appeal Board (PTAB)(4)U.S. District Court for the Eastern District of Texas, Marshall Division(1)Counsel · Lead Counsel · lead counsel
Haltom & Doan41418Texas Eastern District Court(10)Patent Trial and Appeal Board (PTAB)(1)Texas(1)Local Counsel · local counsel · Counsel
Lowenstein & Weatherwax41418Patent Trial and Appeal Board (PTAB)(13)U.S. Court of Appeals for the Federal Circuit(1)U.S. District Court for the Eastern District of Michigan (Detroit); originally E.D. Tex.(1)back-up counsel · Counsel · lead counsel
Kent & Risley18119U.S. District Court for the Eastern District of Texas(8)E.D. Tex.(3)C.D. Cal.(1)lead counsel · local counsel · Lead Counsel
Akin Gump Strauss Hauer & Feld81119Texas Eastern District Court(4)Texas Western District Court(4)U.S. District Court for the District of Delaware(4)lead counsel · Counsel · Lead Counsel