Patent Assignment
Reel/Frame 042377/0256
Assignment of Assignor's Interest
Recorded: 2017-05-15
Pages: 14
Assignors
DUNCAN, ANDREW
Executed: 2014-07-14
ZURITA, ALFREDO MENDEZ
Executed: 2014-07-20
SMITH, KERN L.
Executed: 2014-07-24
VAN PETEGEM, RONLAD
Executed: 2015-09-21
Assignee
CLEARWATER INTERNATIONAL LLC
2000 ST. JAMES PLACE, HOUSTON, TEXAS, 77056
Covered Property
(1)
Hydraulic Diversion Systems to Enhance Matrix Treatments and Methods for Using Same
Application:
14/257,782 →
Publication:
US 2014/0318793
Related Assignments
(3)
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
Dec 15, 2015
From: SAINI, RAJESH K.; VIGDERMAN, LEONID
To: CLEARWATER INTERNATIONAL LLC
Reel/Frame 037290/0889 →
Assignment of Assignor's Interest
Aug 11, 2017
From: LUBRIZOL OILFIELD SOLUTIONS, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 043265/0755 →