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.

1242 firms · 7315 total appearances across 2525 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
Ross213California Central District Court(2)Patent Trial and Appeal Board (PTAB)(1)counsel · counsel of record · Counsel
Wilson Elser Moskowitz Edelman & Dicker123California Southern District Court(1)Patent Trial and Appeal Board (PTAB)(1)local counsel · Counsel
O'Kelly & O'Rourke123Patent Trial and Appeal Board (PTAB), United States Patent and Trademark Office (USPTO)(2)Delaware District Court(1)counsel · Counsel · local counsel
Lewis Rice123Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Eastern District of Missouri(1)U.S. District Court for the Southern District of Iowa(1)lead counsel · Counsel · counsel
Ahmad, Zavitsanos, Anaipakos, Alavi & Mensing3—3United States District Court for the Eastern District of Texas(2)U.S. District Court for the Eastern District of Texas, Marshall Division(1)Counsel · Lead Counsel
Ice Miller123Nevada District Court(2)Patent Trial and Appeal Board (PTAB)(1)Counsel (requested withdrawal) · Of Counsel · counsel
Buchalter123California Central District Court(1)U.S. District Court for the Northern District of Georgia(1)Counsel · local counsel
Weintraub Tobin Law Corporation—33Patent Trial and Appeal Board (PTAB)(3)lead counsel · back-up counsel · Lead Counsel
Barclay Damon213New York Southern District Court(2)Delaware District Court(1)significant counsel · Partner, Co-chair of IP Litigation Practice · Counsel
Hueston Hennigan213Minnesota District Court(1)Patent Trial and Appeal Board (PTAB)(1)lead counsel · counsel · Partner
Ramey & Schwaller3—3Texas Western District Court(2)Texas Eastern District Court(1)Counsel · Lead Counsel · lead counsel
Law Office of R. Alan Burnett123Patent Trial and Appeal Board (PTAB)(1)United States Court of Appeals for the Federal Circuit(1)United States Patent and Trademark Office (USPTO)(1)lead counsel · Counsel
Mitchell & Company—33District of Delaware, U.S. Court of Appeals for the Federal Circuit (CAFC)(2)District of Delaware(1)Counsel for Defendant · counsel · Lead Counsel
Zuber Lawler & Del Duca—33District of Delaware, U.S. Court of Appeals for the Federal Circuit (CAFC)(2)District of Delaware(1)Counsel for Defendant · counsel · Lead Counsel
Ballard Spahr123Texas Western District Court(2)Texas Eastern District Court(1)Counsel · Associate Counsel
RL Drolet Patent Prosecution Services123Patent Trial and Appeal Board (PTAB)(2)Southern District of Florida(1)lead counsel · patent counsel · Lead Counsel
Shutts & Bowen123PTAB(1)Southern District of Florida(1)Counsel · Partner · Senior Associate
Bey & Cotropia213Patent Trial and Appeal Board (PTAB)(1)U.S. Court of Appeals for the Federal Circuit(1)U.S. District Court for the Eastern District of Virginia, Norfolk Division(1)Local Counsel · appellate counsel
Gentry Locke2—2Virginia Western District Court(2)local counsel
The Devlin Law Firm2—2Court of Appeals for the Federal Circuit(1)D. Del.(1)lead counsel · of counsel · counsel
Knechtel, Demeur & Samlan2—2Court of Appeals for the Federal Circuit(1)U.S. District Court for the Northern District of Georgia(1)of counsel
Fairfield and Woods2—2Court of Appeals for the Federal Circuit(2)of counsel · Lead Counsel
Woods Rogers Vandeventer Black112U.S. District Court for the Eastern District of Virginia(1)Virginia Western District Court(1)Local Counsel · local counsel
YK Law112California Central District Court(1)Illinois Northern District Court(1)Lead Counsel · attorney of record
Cleary Gottlieb Steen & Hamilton—22Court of Appeals for the Federal Circuit(1)Texas Western District Court(1)Lead Counsel · Counsel · Likely Local Counsel