IP Library › Assignment 022331/0752
Patent Assignment
Reel/Frame 022331/0752

Assignment of Assignor's Interest

Recorded: 2009-03-04 Pages: 5
Assignors
SMITH, KEVIN W.
Executed: 2002-05-02
GATLIN, LARRY W.
Executed: 2002-05-03
HALLMAN, JOHN H.
Executed: 2002-05-03
Assignee
CLEARWATER, INC.
5605 GRAND AVENUE, PITTSBURGH, PENNSYLVANIA, 15225
Covered Property (1)
Heat Exchange Fluids Comprising Amine Carboxylate
Patent: 7,452,480 →
Application: 11/251,058 →
Publication: US 2006/0038158
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Mar 4, 2009
From: CLEARWATER, INC.
To: CLEARWATER INTERNATIONAL, L.L.C.
Reel/Frame 022331/0757 →
Assignment of Assignor's Interest Oct 9, 2015
From: CLEARWATER INTERNATIONAL, L.L.C.
To: LUBRIZOL OILFIELD SOLUTIONS, INC.
Reel/Frame 036822/0379 →