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
ANNE T. CHENSTRIBLING & CHEN1111
LIU, XIAOBINGGUANGZHOU HAOYANG ELECTRONIC CO., LTD.1111
John M. WynneJohn M. Wynne, Attorney at Law1111
Ricardo Bassil1111
KRISTIN S NEWEL1111
(firm only — no attorney name)LG ELECTRONICS INC.1111
GERRY J. WEISS1111
BRIAN LEACHDLA Piper1111
WILLIAM S. PATTISONDUANE MORRIS1111
BARRY C. KESTENBAUMATER WYNNE1111
(firm only — no attorney name)NEAL & MCDEVITT1111
WANG, SHIH-YUAN1111
CHRISTOPHER C. WARDLAW OFFICE OF CHRISTOPHER C. WARD1111
G. E. BETHEL1111
Doreen S. ReineckeNEWELL BRANDS1111
Ruth E. LaudemanLAW OFFICE OF RUTH LAUDEMAN1111
Andrea L. Tran1111
KENNETH B. STOKESSTOKES LAW GROUP1111
(firm only — no attorney name)MORSE, BARNES-BROWN & ROSE1111
Daniel A. S. BurgerRopes & Gray1111
ROBERT J. STUMPF, JR.THE LAW OFFICES OF ROBERT J. STUMPF, JR.1111
GARY M. HOFFMANAVIGEN, INC.1111
BETH D. MCMULLENSANOFFI U.S. SERVICES INC.1111
RYAN K. FRIEDEN1111
JEREMY D. MARRMARR LAW FIRM1111