Patent Assignment
Reel/Frame 043987/0357
Assignment of Assignor's Interest
Recorded: 2017-10-31
Pages: 5
Assignee
CARBO CERAMICS INC.
575 N. DAIRY ASHFORD RD., SUITE 300, HOUSTON, TEXAS, 77079
Covered Property
(1)
Use of Natural Low-Level Radioactivity of Raw Materials to Evaluate Gravel Pack and Cement Placement in Wells
Application:
62/158,372 →
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 →