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.

1248 firms · 7345 total appearances across 2538 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
Zimmer, Citron & Clarke112U.S. Court of Appeals for the Federal Circuit(1)United States District Court for the Western District of Texas(1)counsel · Counsel
Noroozi112Patent Trial and Appeal Board (PTAB)(1)U.S. Court of Appeals for the Federal Circuit (CAFC)(1)Lead Counsel · lead counsel
Armstrong Teasdale112Patent Trial and Appeal Board (PTAB)(1)Texas Northern District Court(1)Of Counsel · Counsel · Lead Counsel
George, Brothers, Kincaid & Horton123Court of Appeals for the Federal Circuit(1)Texas Western District Court(1)U.S. District Court for the Western District of Texas, Austin Division(1)Local Counsel · local counsel
Greer, Burns & Crain3—3Illinois Northern District Court(3)Counsel · lead counsel · of counsel
GrayRobinson213Court of Appeals for the Federal Circuit(1)Southern District of Florida(1)U.S. District Court for the Southern District of Florida, Miami Division(1)Counsel · local counsel
Glaser Weil Fink Howard Avchen & Shapiro3—3Court of Appeals for the Federal Circuit(2)Texas Eastern District Court(1)Of Counsel · of counsel · Of Counsel / Local Counsel
Michael Best & Friedrich123Arizona District Court(2)Indiana Southern District Court(1)Local Counsel · Counsel · lead counsel
Fitch, Even, Tabin & Flannery3—3Court of Appeals for the Federal Circuit(1)Texas Western District Court(1)Washington Western District Court(1)counsel · lead counsel
Dunlap Bennett & Ludwig3—3Texas Western District Court(1)U.S. District Court for the Eastern District of Texas(1)Lead Counsel · of counsel · Of Counsel
The Tadlock Law Firm3—3Texas Eastern District Court(2)U.S. District Court for the Western District of Texas(1)of counsel · Lead Counsel · counsel
Siebman, Burg, Phillips & Smith—33Texas Eastern District Court(3)local counsel · Local Counsel
Winstead3—3Texas Western District Court(2)Texas Eastern District Court(1)Attorney · Shareholder · Associate
Kaufman & Canoles123U.S. District Court for the Eastern District of Virginia(3)local counsel · Local Counsel
Klemchuk123Texas Western District Court(2)United States District Court for the Western District of Michigan, Southern Division(1)Local Counsel · Of Counsel
Workman Nydegger213U.S. District Court for the District of Utah(3)local counsel · of counsel · Local Counsel
The Polasek Law Firm213Florida Middle District Court(2)U.S. District Court for the Eastern District of Texas, Marshall Division(1)Lead Counsel · Co-counsel · Counsel
Roth & Abraham Law Firm213Texas Eastern District Court(3)Counsel · Local Counsel
Davis, Cedillo & Mendoza3—3U.S. District Court for the Northern District of California(2)U.S. District Court for the Eastern District of Texas(1)local counsel · counsel · Local Counsel
ArentFox Schiff123District of Massachusetts(1)U.S. District Court for the Eastern District of Texas(1)U.S. District Court for the Eastern District of Virginia, Norfolk Division(1)counsel · Lead Counsel · lead counsel
Schneider Rothman Intellectual Property Law Group213District of Arizona(1)Southern District of Florida(1)lead counsel · Counsel · of counsel
SRIPLAW3—3Northern District of Georgia(2)Central District of California(1)Lead Counsel · Local Counsel · lead counsel
Beard St. Clair Gaffney213United States District Court for the District of Idaho(2)local counsel · counsel of record
Baker & Hostetler—33District of Delaware(1)District of Delaware, U.S. Court of Appeals for the Federal Circuit (CAFC)(1)U.S. District Court for the Eastern District of Texas(1)lead counsel · of counsel · local counsel
Nix Patterson3—3U.S. District Court for the Eastern District of Texas(3)lead or co-counsel · Lead Trial Counsel · Lead Counsel