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.

1465 firms · 10858 total appearances across 3709 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
Ramey & Schwaller314Texas Western District Court(2)Texas Eastern District Court(1)United States Patent and Trademark Office, Patent Trial and Appeal Board (PTAB)(1)lead counsel · back-up counsel · Counsel
Weintraub Tobin Chediak Coleman Grodin314California Northern District Court(2)Patent Trial and Appeal Board (PTAB)(1)United States District Court, Northern District of California, San Jose Division(1)counsel · lead counsel · Attorney for Plaintiff
Gemini Law134U.S. District Court for the District of Delaware(2)District of New Jersey(1)Patent Trial and Appeal Board (PTAB)(1)lead counsel · trial counsel · counsel
Ciccarelli Law Firm314Texas Western District Court(2)U.S. District Court for the Eastern District of Virginia(1)U.S. District Court for the Western District of Texas, Waco Division(1)local counsel · Counsel
Duane Morris & Selvam134Patent Trial and Appeal Board (PTAB)(2)International Trade Commission (ITC)(1)U.S. District Court, Central District of California(1)Lead Counsel · Chairman · Director
RuyakCherian314Court of Appeals for the Federal Circuit(2)Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Eastern District of Texas(1)Counsel · counsel · plaintiff's counsel
Foley Hoag—44Patent Trial and Appeal Board (PTAB)(3)U.S. District Court for the District of Massachusetts(1)Lead Counsel · Back-up Counsel · Backup Counsel
Ward & Smith4—4United States District Court for the Eastern District of Texas(3)Patent Trial and Appeal Board (PTAB)(1)local counsel · lead counsel
Porter Hedges134Western District of Texas(2)Patent Trial and Appeal Board(1)local counsel · outside counsel of record
Stoll Keenon Ogden—44Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Eastern District of Kentucky(1)U.S. District Court, E.D. Ky. (Lexington Division)(1)local counsel
The Glennon Law Firm4—4U.S. District Court for the Western District of New York(3)W.D.N.Y.(1)local counsel
Harrigan Leyh Farmer & Thomsen4—4U.S. District Court, W.D. Texas (Waco Division) — Judge Alan D. Albright(1)U.S. District Court, Western District of Washington(1)U.S. District Court, Western District of Washington (Seattle Division)(1)local counsel · former local counsel
Ellenoff Grossman & Schole314D. Delaware(1)U.S. Court of Appeals for the Federal Circuit(1)USPTO Patent Trial and Appeal Board(1)pro hac vice · backup counsel · back-up counsel (patent owner)
Fried, Frank, Harris, Shriver & Jacobson224Patent Trial and Appeal Board(2)U.S. District Court for the Eastern District of Texas(1)lead counsel · back-up counsel
Dontzin Nagy & Fleissig—44Patent Trial and Appeal Board (PTAB)(2)United States Court of Appeals for the Federal Circuit(1)United States District Court for the Southern District of New York(1)local counsel · associate · lead trial counsel
Bartko, Zankel, Bunzel & Miller224U.S. District Court for the Northern District of California(4)local counsel · team member · lead local counsel
Bryan Cave224U.S. District Court for the Northern District of Georgia(2)U.S. District Court for the Eastern District of Texas, Tyler Division(1)USPTO Patent Trial and Appeal Board(1)local counsel · outside counsel · lead trial counsel
Taft Stettinius & Hollister235Court of Appeals for the Federal Circuit(1)Louisiana Eastern District Court(1)Texas Eastern District Court(1)lead counsel · local counsel · potential counsel
Young, Garcia & Quadrozzi415U.S. District Court for the Eastern District of Michigan (Detroit); originally E.D. Tenn.(4)Court of Appeals for the Federal Circuit(1)local counsel
Michael Best & Friedrich145Arizona District Court(2)Indiana Southern District Court(1)U.S. Court of Appeals for the Federal Circuit(1)briefing counsel · lead counsel · appellate counsel