Patent Assignment
Reel/Frame 030271/0675
Assignment of Assignor's Interest
Recorded: 2013-04-22
Pages: 3
Assignors
SMITH, HARRY D., JR.
Executed: 2012-08-08
HAN, XIAOGANG
Executed: 2012-08-14
DUENCKEL, ROBERT
Executed: 2012-08-01
Assignee
CARBO CERAMICS, INC.
575 NORTH DAIRY ASHFORD, SUITE 300, HOUSTON, TEXAS, 77079
Covered Property
(1)
Use of PNC Tools to Determine the Depth and Relative Location of Proppant in Fractures and the Near Borehole Region
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Patent Security Agreement
Apr 28, 2016
From: CARBO CERAMICS INC.; FALCON TECHNOLOGIES AND SERVICES, INC.; STRATAGEN, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 038555/0688 →
Release of Security Interest
Mar 3, 2017
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: CARBO CERAMICS INC.; ASSET GUARD PRODUCTS INC. (F/K/A FALCON TECHNOLOGIES AND SERVICES, INC.); STRATAGEN, INC.
Reel/Frame 041879/0930 →