Patent Assignment
Reel/Frame 017274/0311
Assignment of Assignor's Interest
Recorded: 2006-03-08
Pages: 4
Assignor
WILSON, JR., THOMAS P.
Executed: 2006-01-31
Assignee
CLEARWATER INTERNATIONAL, LLC
515 POST OAK BLVD., STE. 600, HOUSTON, TEXAS, 77027
Covered Property
(1)
Well Drilling Fluids Having Clay Control Properties
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 →