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.

1249 firms · 7347 total appearances across 2539 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
ATech Designs, Inc.—11Patent Trial and Appeal Board (PTAB)(1)Attorney for Patent Owner
Olson & Cepuritis1—1Patent Trial and Appeal Board (PTAB), United States Patent and Trademark Office(1)Lead Counsel
Kaleo Legal1—1Virginia Eastern District Court(1)local counsel
Leffler Law Firm1—1California Central District Court(1)lead counsel
Katz1—1Patent Trial and Appeal Board (PTAB)(1)attorney
McAllister & Associates1—1Texas Western District Court(1)Counsel · Lead Counsel
Latham & Frederick1—1Texas Western District Court(1)Of Counsel
Rivkin Radler1—1Texas Eastern District Court(1)Counsel
Squire Patton Boggs1—1Texas Eastern District Court(1)Trial Lawyer
Rifkin Weiner Livingston1—1Texas Eastern District Court(1)Counsel
Glacier Law1—1Patent Trial and Appeal Board (PTAB)(1)Counsel
Wilentz, Goldman & Spitzer—11West Virginia Northern District Court(1)counsel of record
McAughan, De La Rosa & Cedillo—11U.S. District Court for the Eastern District of Texas(1)Lead/National Counsel
Schrader Companion Duff & Law—11U.S. District Court for the Northern District of West Virginia; U.S. Court of Appeals for the Federal Circuit; PTAB(1)local counsel
Bienert Katzman Littrell Williams1—1U.S. District Court for the Central District of California (transferred to N.D.W. Va.); U.S. Court of Appeals for the Federal Circuit(1)Local Counsel (initially in C.D. Cal.)
Schiff Hardin1—1PTAB(1)counsel
AFS Law1—1PTAB(1)counsel
Maynard Nexsen1—1Patent Trial and Appeal Board (PTAB)(1)attorney for plaintiff
Cohen IP Law Group—11Patent Trial and Appeal Board (PTAB)(1)Lead Counsel
Goldfarb—11Patent Trial and Appeal Board (PTAB)(1)Of Counsel
Fish IP Law—11Patent Trial and Appeal Board (PTAB)(1)counsel
WPAT1—1Delaware District Court(1)lead counsel
Aitken Law Offices1—1Delaware District Court(1)lead counsel
Greensfelder, Hemker & Gale—11United States Judicial Panel on Multidistrict Litigation, centralized in the Southern District of Iowa.(1)counsel
Stanley, Rehling & Henry1—1U.S. District Court for the Southern District of Iowa(1)local counsel