Patent Assignment
Reel/Frame 025851/0380
Assignment of Assignor's Interest
Recorded: 2011-02-23
Pages: 6
Assignors
SMITH, HARRY D.
Executed: 2011-02-16
SMITH, MICHAEL P.
Executed: 2011-02-19
DUENCKEL, ROBERT
Executed: 2011-02-15
Assignee
CARBO CERAMICS INC.
6565 MACARTHUR BLVD., SUITE 1070, IRVING, TEXAS, 75039
Covered Property
(1)
Methods of Identifying High Neutron Capture Cross Section Doped Proppant in Induced Subterranean Formation Fractures
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 →