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
Bartlit Beck224Patent Trial and Appeal Board (PTAB)(1)U.S. Court of Appeals for the Federal Circuit(1)U.S. District Court for the District of Delaware(1)Lead Counsel · counsel · Counsel
Osborn Maledon224Arizona District Court(3)local counsel · Local Counsel
Kroub, Silbersher & Kolmykov224PTAB(2)Texas Western District Court(1)U.S. District Court for the Eastern District of Texas(1)Partner · Counsel for Patent Owner · Counsel of Record
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
Hatch Law134California Northern District Court(2)California Central District Court(1)United States District Court, District of Nevada(1)counsel · Counsel
Dentons US134Texas Eastern District Court(3)Lead Counsel · Partner · Local Counsel
Clement & Murphy4—4U.S. Court of Appeals for the Federal Circuit(2)U.S. District Court for the Eastern District of Virginia, Norfolk Division(1)United States District Court for the Eastern District of Virginia; U.S. Court of Appeals for the Federal Circuit (CAFC).(1)appellate counsel · Of Counsel · Appellate Counsel
Ortiz & Lopez4—4Illinois Northern District Court(2)California Northern District Court(1)Texas Eastern District Court(1)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