Patent Assignment
Reel/Frame 035633/0171
Assignment of Assignor's Interest
Recorded: 2015-05-13
Pages: 3
Assignor
BARTEL, LEWIS C.
Executed: 2015-04-22
Assignee
CARBO CERAMICS INC.
575 N. DAIRY ASHFORD, SUITE 300, HOUSTON, TEXAS, 77079
Covered Property
(1)
Systems and Methods for Locating and Imaging Proppant in an Induced Fracture
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 30, 2015
From: ALDRIDGE, DAVID F.
To: SANDIA CORPORATION
Reel/Frame 035941/0498 →
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 →
Change of Name
Sep 26, 2018
From: SANDIA CORPORATION
To: NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SANDIA, LLC
Reel/Frame 047154/0232 →