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 into any correspondent for the full asserter list and co-located associates.

Co-location clusters (25)

Mailing addresses where two or more distinct correspondents appear. Could mean a shared firm, shared office building, or registered-agent service. When distinct attorney names cluster at one address AND those attorneys file for ostensibly-unrelated LLCs, that’s the fingerprint of a centrally-operated assertion campaign.

AttorneyFirmAssertersPatentsRecordingsAddresses
(firm only — no attorney name)Perkins Coie8684
(firm only — no attorney name)STERNE KESSLER GOLDSTEIN & FOX7272
Constantine G. MarantidisMarantidis & Shore7171
(firm only — no attorney name)Knobbe, Martens, Olson & Bear6573
(firm only — no attorney name)O'Melveny & Myers5154
(firm only — no attorney name)Phenix4171
John M. Ang-NuttaKing & Spalding4151
ERIK S. MAURERBANNER & WITCOFF4141
(firm only — no attorney name)McDonnell Boehnen Hulbert & Berghoff3332
(firm only — no attorney name)NIXON & VANDERHYE3332
(firm only — no attorney name)Ropes & Gray3232
THEODORE S. RAPPAPORT3233
John F. Jeter3141
Robert P. DonovanDonovan & Yee3141
Matthew W. BoothThe Booth Law Office3131
Isaac RabicoffRabicoff Law3131
(firm only — no attorney name)The Pacid Group3131
John M. FonderFonder3131
John W. OsborneOsborne Law3131
(firm only — no attorney name)HARNESS, DICKEY & PIERCE3131
(firm only — no attorney name)Rabicoff Law2232
(firm only — no attorney name)Russ, August & Kabat2222
Ramy EmamEmam & Associates2131
Althea Prince2131
Lori A. HissongBrinks Hofer Gilson & Lione2131
Matthew G. McAndrewsGIBSON, DUNN & CRUTCHER2131
Christopher P. SingerRimon2131
Jonathan D. LinkOlshan Frome Wolosky2131
(firm only — no attorney name)Schwegman Lundberg & Woessner2131
(firm only — no attorney name)Gibson, Dunn & Crutcher2131
David R. D'ZurillaSCHWEGMAN LUNDBERG & WOESSNER2131
KENNETH R. SITTERSON, JR2121
Stephen T. Schott2121
Bebe L. Fairchild2121
Bebe Fairchild2121
Michael R. FrisciaMCCARTER & ENGLISH2121
Kunal P. ShahLeydig, Voit & Mayer2121
H. Lee Browne2122
Richard M. SaccocioThe Saccocio Law Firm2121
Jonathan T. SuderFriedman, Suder & Cooke2121
J. David LutenLuten & Dobbs2121
John DoeThe Patent Firm2121
WILLIAM J. LONG2121
GREGORY S. DONAHUETHE LAW OFFICE OF GREGORY S. DONAHUE2121
Matthew J. RizzoloRizzolo & Rizzolo2121
C. Brandon BrickerCaldwell Cassady & Curry2121
Charles CalkinsKilpatrick Townsend & Stockton2121
Hylina E. CannonDentons US2121
(firm only — no attorney name)Duane Morris2121
(firm only — no attorney name)Morrison & Foerster2122
Nitin PennThe Penn Group2121
Christopher P. KingKing & Schickli2121
Costa B. ZinoberSnell & Wilmer2121
Sean C. CroninGoodwin Procter2121
Michael T. CiaschiniPillsbury Winthrop Shaw Pittman2121
(firm only — no attorney name)The Gray-MENG2121
(firm only — no attorney name)THE WEBB LAW FIRM2121
Matthew P. BarthalBARTHAL & ASSOCIATES2121
Michael T. O'NeillLaw Office of Michael T. O'Neill2121
(firm only — no attorney name)Simpson Thacher & Bartlett2121
(firm only — no attorney name)Antonelli, Terry, Stout & Kraus2121
(firm only — no attorney name)ONE-E-WAY, INC.2121
Robert A. GreenSheppard Mullin Richter & Hampton2121
WILLIAM W. L. CHENLAW OFFICES OF WILLIAM W. L. CHEN2121
Michael T. SmithTUESDAY IP2121
(firm only — no attorney name)LEE & HAYES2121
Matthew E. ConnorsGesmer Updegrove2121
(firm only — no attorney name)STOEL RIVES2121
Yasuhiko SuzukiSuzuys & Suzuys2121
Kentaro Mizuno2121
Matthew F. LambrinosWolf, Greenfield & Sacks1231
Marc A. FensterRuss August & Kabat1121
Thomas W. CookMcAfee & Taft1121
Paul J. SkiermontShore Deary1121
Otis W. CarrollIreland, Carroll & Kelley1121
Daniel A. ShifrinShifrin & Associates1121
J. David LutenThe Luten Law Firm1121
(firm only — no attorney name)JENSEN & PUNTIGAM1121
(firm only — no attorney name)Thelen Reid Brown Raysman & Steiner1121
(firm only — no attorney name)BROWDY AND NEIMARK1122
Venkatesh S. MurthyGIBBONS1121
Joseph M. NotoThe Noto Law Group1121
Masahiro Yoshida1121
Jessica L. RochaSidley Austin1121
HENRY J. RASHADLAW OFFICE OF HENRY J. RASHAD1111
Joseph M. NotoThe Webb Law Firm1111
Michael G. VergaNelson Mullins Riley & Scarborough1111
D. Scott ParishGCA Law Partners1111
Stephen B. AckermanThe Law Office of Stephen B. ACKERMAN1111
Michael T. RenaudMintz Levin Cohn Ferris Glovsky and Popeo1111
(firm only — no attorney name)Mintz Levin; Russ August & Kabat1110
(firm only — no attorney name)SGR-IP LAW1111
(firm only — no attorney name)ALSTON & BIRD1111
(firm only — no attorney name)SMITH, GAMBRELL & RUSSELL1111
(firm only — no attorney name)PROCOPIO, CORY, HARGREAVES & SAVITCH1111
William F. HeinzeK&L Gates1111
(firm only — no attorney name)Cantor Colburn1111
Mark B. HurstDISH NETWORK1111
Brandon K. OberhammerDISH NETWORK1111
RYAN T. GRACEGRACE & GRACE1111
R. Trevor CarterTraskbritt1111
Jeffrey M. LinstoneRopes & Gray1111
Ryan T. SmithBrownstein Hyatt Farber Schreck1111
David R. WrightWORKMAN NYDEGGER1111
Timothy A. Cook1111
Anthony M VernaceSIMPSON THACHER & BARTLETT1111
(firm only — no attorney name)Lando & Anastasi1111
Thomas C. WronaMintz, Levin, Cohn, Ferris, Glovsky and Popeo1111
Andrew T. ZiolkowskiCooley1111
ROBERT J. SACCOKATTEN MUCHIN ROSENMAN1111
Suzanne K. HendersonHenderson, Franklin, Starnes & Holt1111
Andrea Hence EvansThe Law Firm of Andrea Hence Evans1111
MASAO YAMAZAKI1111
KENTA SATOSATO & ASSOCIATES1111
Paul A. RagusaBaker Botts1111
Joseph M. TeleoglouTeleoglou Law1111
Jordan S. WeinsteinOblon, Spivak, McClelland, Maier & Neustadt1111
MICHAEL J. LENNONKENYON & KENYON1111
(firm only — no attorney name)McHugh & Assoc1111
(firm only — no attorney name)Antonelli, Terry, & Stout1111
(firm only — no attorney name)Beyer & Bosom1111
(firm only — no attorney name)Dechert1111
J. Michael GibbonsFulbright & Jaworski1111
William J. BleaseCooley Godward1111
(firm only — no attorney name)Baker & Botts1111
(firm only — no attorney name)Kenyon & Kenyon1111
(firm only — no attorney name)Weingarten, Schurgin, Gagnebin & Lebovici1111
Richard J. StadtmillerDay Pitney1111
Thomas J. WimbiscusMcAndrews, Held & Malloy1111
Michael D. Hobbs, Jr.Troutman Sanders1111
Dean L. Opsahl1111
Director of Intellectual Ventures1111
Thomas R. TACKENBURGTACKENBURG1111
Peter D. KendallOblon Spivak McClelland Maier & Neustadt1111
David L. Barnhill1111
Robert O. GuyolWeingarten, Schurgin, Gagnebin & Lebovici1111
Anthony P. Knerr1111
William J. MasonMason & Associates1111
Ernest J. ParkAlston & Bird1111
(firm only — no attorney name)BLAKELY SOKOLOFF TAYLOR & ZAFMAN1111
Laurence C. Klein1111
Joseph R. HroudaHROUDA,NUSS & OMI1111
Daniel A. GarteiserGarteiser, Honeywell & Lohmeyer1111
R. Gibson DannerDanner & Associates1111
Gregory J. LunnWoodcock Washburn Kurtz1111
J. David LutenLuten Law Firm1111
David L. HayesDLA Piper1111
(firm only — no attorney name)Finnegan, Henderson, Farabow, Garrett & Dunner1111
Roger S. R Rydin1111
David L. FehrmanPerkins Coie1111
Michael W. O'SULLIVANO'SULLIVAN KEYES1111
Wendy M. HopkinsNavins & Hopkins1111
Steven C. Geoffrey1111
Steven Geoffrey1111
James J. KortyHeim, Payne & Chastain1111
(firm only — no attorney name)Intellectual Ventures1111
George T. MarcouKilpatrick Stockton1111
Scott A. Hodes1111
E. Russell Tarleton, Jr.1111
Michael J. NewmanRopes & Gray1111
(firm only — no attorney name)Covington & Burling1111
(firm only — no attorney name)Lyon & Lyon1111
(firm only — no attorney name)Brobeck, Phleger & Harrison1111
(firm only — no attorney name)Paul, Hastings, Janofsky & Walker1111
(firm only — no attorney name)Rutan & Tucker1111
(firm only — no attorney name)Thelen Reid & Priest1111
(firm only — no attorney name)Cooley1111
David C. RadulescuRadulescu1111
David A. J. D'afonsecaProskauer Rose1111
David A. WilsonWolf, Greenfield & Sacks1111
Richard A. Salcido1111
(firm only — no attorney name)Mattingly, Stanger, Malur & Brundidge1111
(firm only — no attorney name)Lewis Roca Rothgerber Christie1111
(firm only — no attorney name)KILPATRICK TOWNSEND & STOCKTON1111
John C. RallsPearlstone1111
(firm only — no attorney name)Wenderoth, Lind & Ponack1111
David A. BelloRosenberg, Klein & Lee1111
Richard A. Hertling1111
SEBASTIAN ELLIOT1111
STEVEN J. LAURENTLAURENT & LAURENT1111
John F. Luman1111
(firm only — no attorney name)Merchant & Gould1111
Christopher J. FildesLaw Office of Christopher Fildes1111
Donald D. Prohaska1111
Michael G. Johnston1111
SCOTT G. DRUCKERZEKELMAN INDUSTRIES1111
(firm only — no attorney name)Hewlett-Packard Company1111
(firm only — no attorney name)Hewlett Packard Enterprise1111
Joshua M. GoldsmithCooley1111
(firm only — no attorney name)Heller Ehrman1111
Andrea R. ChouCooley1111
(firm only — no attorney name)ScienBiziP1111
(firm only — no attorney name)THE LAW FIRM OF KAREN DANA1111
(firm only — no attorney name)The Marbury Law Group1111
Michael L. SmithLaw Office of Michael L. Smith1111
Stephen C. AnSANMINA-SCI LAW GROUP1111
Jonathan R. MillerTHE LAW OFFICE OF JONATHAN R. MILLER1111
James H. SalterTHE RAPACKE LAW FIRM1111
(firm only — no attorney name)Lerner, David, Littenberg, Krumholz & Mentlik1111
(firm only — no attorney name)The FPL Law Group1111
David L. O'DellSOREY, GILLILAND & O'DELL1111
Joseph P. BeckDLA Piper (US)1111
Hariklia K. KarisKaris IP Law1111
(firm only — no attorney name)Eitan, Pearl, Latzer & Cohen-Zedek1111
John D. LanzaFish & Richardson1111
Peter M. WernerCooley1111
Thomas A. Ward1111
Jonathan R. MillerHaug Partners1111
(firm only — no attorney name)The Recorder1111
(firm only — no attorney name)Cogency Global Inc.1111
(firm only — no attorney name)Fitch, Even, Tabin & Flannery1111
(firm only — no attorney name)Debevoise & Plimpton1111
Stephen J. StarkMiller & Martin1111
(firm only — no attorney name)Chiacchio, Trahan & Nash1111
Matthew J. DowneyDowney Law Group1111
Raj AbhyankerRaj Abhyanker1111
NATH, GARY M.NATH, GOLDBERG & MEYER1111
ROBERT J. KIPERKATTEN MUCHIN ROSENMAN1111
Joseph D. GaronGarlick & Markison1111
Jeffrey M. DracupKlarquist Sparkman1111
(firm only — no attorney name)Nutter McClennen & Fish1111
ROBERT J. GORMAN, JR.GORMAN & WILLIAMS1111
J. Michael Martinez de AndinoCHERNOFF VILHAUER1111
(firm only — no attorney name)Patterson & Sheridan1111
Michael T. RellerReller & Company1111
Kevin HenningONE1111
Cindy M. Zelson1111
ROBERT J. STERNSULLIVAN & WORCESTER1111
CHRISTOPHER M. LOHFITZPATRICK, CELLA, HARPER & SCINTO1111
Ryan E. DawsServilla Whitney1111
Brett S. HalterHalter, A Professional Law Corporation1111
Russ WeinzimmerRuss Weinzimmer & Associates1111
Alex V. ChachkesChachkes Law1111
(firm only — no attorney name)IPINVESTMENTS, LLC1111
Robert P. LordLaw Office of Robert P. Lord1111
Matthew C. BerntsenBANNER & WITCOFF1111
George PazuniakO'KELLY & O'ROURKE1111
(firm only — no attorney name)NORTON ROSE FULBRIGHT US1111
Gregory K. Canning1111
Joseph M. NotoThe Marbury Law Group1111
Andrew G. Hamill1111
S. H. KimKED & PARTNERS1111
Yue (Robert) XuAPEX-IP LAW1111
Andrew S. EhmkeHaynes and Boone1111
C. Earl Woolfork1111
Donn K. HarmsAmerican Patent & Trademark Law1111
Noboru IwasaMattingly & Malur1111
Robert P. MichalCarter, DeLuca & Farrell1111
ERIK B. WULFFDLA PIPER1111
MATTHEW R. FUPPOSFUPPOS LAW1111
MIKIO ISHIMARUThe Mclaughlin Law Group1111
James J. DeCarloGreenberg Traurig1111
ROBERT C. HOHLLAW OFFICE OF ROBERT C. HOHL1111
J. Michael Martinez de AndinoANDINO REYNAL & SCHOCH1111
JOSHUA E. SCHUTTENHELMKNOBBE, MARTENS, OLSON & BEAR1111
S. Lloyd SmithWorkman Nydegger1111
(firm only — no attorney name)CHRISTIE, PARKER & HALE1111
(firm only — no attorney name)Shinjyu Global IP1111
(firm only — no attorney name)Panasonic Corporation of North America1111
(firm only — no attorney name)Sughrue Mion1111
Stamatios M. StamoulisStamoulis & Associates1111
(firm only — no attorney name)Rabideau Law1111
Thomas T. GordonThe Gordon Law Firm1111
(firm only — no attorney name)Buether Joe & Counselors1111
James E. Eason, Jr.Glankler Brown1111