IP Library › Assignment 022977/0509
Patent Assignment
Reel/Frame 022977/0509

Assignment of Assignor's Interest

Recorded: 2009-07-20 Pages: 9
Assignor
DIBIASIO, MICHAEL
Executed: 2008-08-12
Assignee
CLEARWATER INTERNATIONAL, LLC
515 POST OAK BLVD, SUITE 600, HOUSTON, TEXAS, 77027
Covered Property (1)
Enhanced Oil-Based Foam Drilling Fluid Compositions and Method for Making and Using Same
Patent: 8,141,661 →
Application: 12/167,087 →
Publication: US 2010/0000795
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 20, 2009
From: KAKADJIAN, SARKIS R.; FALANA, OLUSEGUN M.; MARSHALL, EDWARD; ZAMORA, FRANK
To: CLEARWATER INTERNATIONAL, LLC
Reel/Frame 022977/0418 →
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 18, 2017
From: LUBRIZOL OILFIELD SOLUTIONS, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 043331/0330 →