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
Gish11011U.S. District Court for the Northern District of California(3)United States District Court for the Eastern District of Texas(3)U.S. District Court for the District of Delaware(2)lead counsel · Lead Counsel · counsel
Rothwell, Figg, Ernst & Manbeck6511Patent Trial and Appeal Board (PTAB)(5)U.S. District Court for the Northern District of West Virginia; U.S. Court of Appeals for the Federal Circuit; PTAB(2)New York Southern District Court(1)co-counsel · counsel for PTAB proceedings · patent counsel
Munger, Tolles & Olson11011Central District of California(3)Patent Trial and Appeal Board (PTAB)(3)U.S. Court of Appeals for the Federal Circuit(3)counsel of record · pro hac vice counsel · trial counsel
Eversheds Sutherland (US)6511Patent Trial and Appeal Board (PTAB)(4)U.S. District Court for the Northern District of California(2)California Central District Court(1)Counsel · Backup Counsel · Lead Counsel
Perilla Knox & Hildebrandt3811Patent Trial and Appeal Board (PTAB)(7)California Central District Court(1)Delaware District Court(1)Lead Counsel · lead counsel · Counsel
Spencer Fane4711Patent Trial and Appeal Board (PTAB)(4)Arizona District Court(2)United States District Court, District of Nevada(2)local counsel · Partner · Counsel
The Simon Law Firm9211Texas Eastern District Court(3)U.S. District Court for the Eastern District of Missouri(3)U.S. District Court for the Southern District of Iowa(2)local counsel · Counsel · Local Counsel
One9211California Northern District Court(4)Texas Eastern District Court(2)United States District Court for the Northern District of California, San Francisco Division(2)Lead Counsel · Counsel · counsel
Barclay Damon6511USPTO Patent Trial and Appeal Board(4)New York Southern District Court(2)U.S. District Court for the District of Delaware (Wilmington Division)(2)lead counsel · back-up counsel · of counsel
Henry & O'Donnell11—11U.S. District Court, Eastern District of Virginia (Alexandria Division; transferred to Norfolk Division)(3)Patent Trial and Appeal Board (USPTO)(2)U.S. Court of Appeals for the Federal Circuit(2)local counsel · co-counsel
Nix, Patterson & Roach11112U.S. District Court for the Eastern District of Texas(7)Eastern District of Texas, Marshall Division(1)U.S. Court of Appeals for the Federal Circuit(1)lead counsel · plaintiff counsel · trial counsel
The Roth Law Firm8412U.S. District Court for the Eastern District of Texas(9)E.D. Tex. (Judge Gilstrap)(2)local counsel · Local Counsel · local and trial counsel
Herbert Smith Freehills Kramer7512Patent Trial and Appeal Board (PTAB)(6)U.S. District Court for the Eastern District of Texas(2)Delaware District Court(1)lead counsel · Lead Counsel · trial counsel
Kelly Hart & Hallman4812U.S. District Court for the Western District of Texas(5)Patent Trial and Appeal Board (PTAB)(3)U.S. District Court for the Western District of Texas, Waco Division (WDTX)(2)local counsel · Local Counsel · of counsel
Mann Tindel & Thompson6612Texas Eastern District Court(5)Court of Appeals for the Federal Circuit(2)U.S. District Court for the Western District of Texas(2)local counsel · Local Counsel · partner
Snell & Wilmer8412U.S. District Court for the District of Arizona(4)California Central District Court(2)U.S. District Court for the District of Nevada(2)Local Counsel · local counsel · Counsel
Brown Rudnick8412Patent Trial and Appeal Board (PTAB)(4)U.S. District Court for the Central District of California(4)Texas Eastern District Court(3)Counsel · lead counsel · Partner
Alavi & Anaipakos8412Patent Trial and Appeal Board (PTAB)(5)Texas Eastern District Court(3)California Central District Court(1)Counsel · counsel · Lead Counsel
Blue Peak Law Group8412Texas Eastern District Court(3)U.S. District Court for the Western District of Texas, Waco Division(3)Washington Western District Court(2)counsel · lead counsel · Lead Counsel
Dority & Manning4812USPTO Patent Trial and Appeal Board(3)U.S. District Court for the District of Delaware (Judge Richard G. Andrews); transferred to U.S. District Court for the Southern District of New York (Judge Analisa Torres)(2)PTAB (IPR)(1)backup counsel · counsel · PTAB counsel