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.

1449 firms · 10730 total appearances across 3648 cases with counsel data.

FirmPlaintiffDefendantTotalTop courtsTop roles
X-Patents—22Delaware District Court(1)Patent Trial and Appeal Board (PTAB)(1)counsel
Cork Maloney—22Patent Trial and Appeal Board (PTAB)(2)Back-Up Counsel · Counsel
DiCello Levitt2—2New York Southern District Court(2)Partner · significant counsel
The Law Offices of David A. Gerasimow2—2Texas Eastern District Court(1)Texas Western District Court(1)lead counsel · attorney
Dowell Commercial Litigation—22Patent Trial and Appeal Board (PTAB)(2)Lead Counsel
Eversheds Sutherland—22Patent Trial and Appeal Board (PTAB)(2)counsel · lead counsel · counsel; back-up counsel
Taylor English Duma—22Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Middle District of Georgia (Macon Division)(1)Of Counsel/Local Counsel · local counsel
Sterlington2—2U.S. District Court for the District of New Jersey (Camden)(2)of counsel · Of Counsel · lead trial counsel
Pinckney, Weidinger, Urban & Joyce—22Delaware District Court(1)Patent Trial and Appeal Board (PTAB)(1)local counsel · Local Counsel
Apple Inc.—22California Northern District Court(1)U.S. District Court for the Western District of Texas, Midland/Odessa(1)Senior Litigation Counsel · Chief IP Counsel · Counsel, IP Litigation
Cabello Hall Zinda—22Patent Trial and Appeal Board (PTAB)(1)Texas Eastern District Court(1)local counsel · lead counsel
Potomac Law Group—22Texas Eastern District Court(2)counsel · Partner · lead counsel
KellDann Law112Patent Trial and Appeal Board (PTAB)(1)Texas Eastern District Court(1)back-up counsel · Founding Partner, Managing Partner · Founding Partner, Head of Practice
Wilson Robertson & Astley2—2Texas Eastern District Court(2)local counsel
Meta Platforms112Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Western District of Washington(1)in-house · In-House Counsel
Kercsmar & O'Hara112Patent Trial and Appeal Board (PTAB)(1)U.S. District Court for the Northern District of California(1)Lead Counsel · lead counsel · counsel
Lash & Goldberg—22Florida Southern District Court(2)local counsel · lead local counsel
A&O Shearman2—2Patent Trial and Appeal Board (PTAB)(2)Petitioner Counsel · lead counsel
The Concept Law Group112Ohio Northern District Court(1)PTAB(1)Partner, Registered Patent Attorney · Partner, Litigation and Entertainment Law · Associate
Finnegan2—2Patent Trial and Appeal Board, U.S. Patent and Trademark Office(1)Texas Eastern District Court(1)back-up counsel · lead counsel