Patent Assignment
Reel/Frame 025055/0659
Assignment of Assignor's Interest
Recorded: 2010-09-28
Pages: 10
Assignors
ZAMORA, FRANK
Executed: 2010-09-16
BRAMBLETT, MARILYN J.
Executed: 2010-09-16
HERNANDEZ, MARIO B.
Executed: 2010-09-16
POWELL, RON
Executed: 2010-09-16
KAKADJIAN, SARKIS R.
Executed: 2010-09-16
FALANA, OLUSEGUN MATTHEW
Executed: 2010-09-16
Assignee
CLEARWATER INTERNATIONAL, LLC
515 POST OAK BLVD., SUIT 600, HOUSTON, TEXAS, 77027
Covered Property
(1)
Novel Weight Materials for Use in Cement, Spacer and Drilling Fluids
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 9, 2015
From: CLEARWATER INTERNATIONAL, L.L.C.
To: LUBRIZOL OILFIELD SOLUTIONS, INC.
Reel/Frame 036822/0379 →
Assignment of Assignor's Interest
Aug 11, 2017
From: LUBRIZOL OILFIELD SOLUTIONS, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 043265/0755 →