IP Library › Assignment 032437/0631
Patent Assignment
Reel/Frame 032437/0631

Assignment of Assignor's Interest

Recorded: 2014-03-14 Pages: 4
Assignors
PURNHAGEN, DAVID W.
Executed: 2014-02-27
XU, CHUNCHUAN
Executed: 2014-02-27
ALEX, PAUL A.
Executed: 2014-02-27
Assignee
UNDERGROUND SYSTEMS, INC.
84 BUSINESS PARK DRIVE, SUITE 109, ARMONK, NEW YORK, 10504
Covered Property (1)
Dynamic Wide-Area Earth Thermal Properties and Earth Ambient Temperature Determination System
Patent: 9,638,586 →
Application: 14/196,170 →
Publication: US 2015/0253458
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Mar 25, 2014
From: PURNHAGEN, DAVID W., MR.; XU, CHUNCHUAN, MR.; ALEX, PAUL A., MR.
To: UNDERGROUND SYSTEMS, INC.
Reel/Frame 032514/0347 →
Security Interest Nov 1, 2018
From: UNDERGROUND SYSTEMS, INC.
To: PEOPLE'S UNITED BANK, NATIONAL ASSOCIATION
Reel/Frame 047384/0553 →