Correspondent registry

Correspondents.

Every attorney or firm recorded with USPTO when an assignment was filed on a tracked US patent. The correspondent is the most useful tell when assignee LLCs look anonymous — shell chains commonly share one repeat-player attorney even when the LLC names are designed to look unrelated. Click any correspondent for the full asserter list and co-located associates.

How to read this registry

When a patent changes hands, the new owner records the transfer with the USPTO, and the attorney who files it is logged as the correspondent. Patent trolls constantly rename their shell LLCs to look unrelated — but the lawyer who files the paperwork usually doesn’t change. So one repeat-player correspondent, or one shared mailing address, is often the thread that ties a swarm of ostensibly-separate shells back to a single operator: the “47 LLCs all filed by one attorney at one Plano, TX address” pattern. Two views build on this table: Behind the shells (who owns the shells) and Co-location clusters (attorneys sharing an address).

Asserters
Distinct assignee entities (the LLCs / NPEs) this attorney recorded patents for. The headline signal — a high count is a repeat player servicing many entities.
Patents
Distinct patents touched across all of their recordings.
Recordings
Total assignment filings this correspondent appears on.
Addresses
Distinct mailing addresses seen. Shared addresses across different attorneys surface on the clusters page.
AttorneyFirmAssertersPatentsRecordingsAddresses
BRENT ANDERSONCPA GLOBAL1111
Jeffrey C. HandleyPatent Law Group1111
Gregory P. BrownBaker & McKenzie1111
Scott B. MacDonaldLaw Office of Scott B. MacDonald1111
Jeffrey P. KushanSidley Austin1111
Matthew N. BernsteinSheppard Mullin Richter & Hampton1111
Jason B. KomorskyCarstens & Cahoon1111
Jeffrey C. HanleyHanley Flight & Zimmerman1111
Peter S. HeckerFinnegan Henderson Farabow Garrett & Dunner1111
Joshua R. KingKing & SPALDING1111
KORY R. GEHLINDORSEY & WHITNEY1111
GREGORY A. CHOCKGUNDERSON DETTMER STOUGH VILLENEUVE FRANKLIN & HACHIGIAN1111
BRUCE M. WANGFENWICK & WEST1111
R. MICHAEL HENNIGANHENNIGAN & ASSOCIATES1111
ROBERT E. HARBIN, IIIHARBIN LAW1111
DANIEL E. MCNAMARACHRISTENSEN O'CONNOR JOHNSON KINDNESS1111
(firm only — no attorney name)WILMER CUTLER PICKERING HALE AND DORR1111
Anne M. Kabourek1111
NIKKI F. BHOGALBHOGAL & BHOGAL1111
(firm only — no attorney name)PICCADILLY PATENT FUNDING LLC1111
BASS, DAVID P.LAW OFFICE OF DAVID P. BASS1111
GREGORY P. LEEDSLeeds1111
Firas SamiatSamiat & Associates1111
William C. RowlandLaw Office of William Rowland1111
JENNIFER TINGO'BANION & RICE1111