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
YOSSI BEN-DOVEITAN, MAUL & PARTNERS1111
(firm only — no attorney name)The Gray Law Firm1111
(firm only — no attorney name)WETZEL LAW FIRM1111
Matthew S. Bethards1111
Robert A. ParsonsINTELLECTUAL VENTURES MANAGEMENT1111
Michael J. MondelliMANDELI LAW1111
Jeffrey M. BrownKory & Partners1111
Jeffrey M. SchwartzJEFFREY M. SCHWARTZ1111
LORNA HAGANKIRKLAND & ELLIS1111
CHRISTINA NEWMAN1111
ERIC M. ABERMORRISON & FOERSTER1111
MARK A. NELSON1111
Jeffrey M. HayesHayes Soloway1111
Robert M. O'Keefe1111
(firm only — no attorney name)BUCHANAN INGERSOLL & ROONEY1111
Jeffrey M. HershFISH & RICHARDSON1111
BLAIR M. JACOBSONKUTAK ROCK1111
JOHN M. D'ANGELOCHIESA SHAHINIAN & GIANTOMASI1111
Goro TerunumaPanasonic Intellectual Property Management1111
Jeffrey G. ShellSHELL LAW GROUP1111
Scott W. JohnsonJohnson & Stoel1111
Jesse C. Bunch1111
Timothy J. Kelly1111
John R. Vane1111
GANDHI, ANILKUMAR S., PILGAONKAR, PRATIBHA S., RUSTOMJEE, MAHARUKH T.1110