IP Library › Assignment 020766/0954
Patent Assignment
Reel/Frame 020766/0954

Assignment of Assignor's Interest

Recorded: 2008-04-07 Pages: 2
Assignors
SCHWARTZ, KEVIN M.
Executed: 2002-08-26
SMITH, KEVIN W.
Executed: 2002-08-26
CHEN, SHIH-RUEY T.
Executed: 2002-08-26
Assignee
CLEARWATER, INC.
5605 GRAND AVENUE, PITTSBURGH, PENNSYLVANIA, 15225
Covered Property (1)
Polymeric Gel System and Use in Hydrocarbon Recovery
Patent: 7,575,057 →
Application: 12/033,098 →
Publication: US 2008/0202749
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Apr 7, 2008
From: CLEARWATER, INC.
To: CLEARWATER INTERNATIONAL, L.L.C.
Reel/Frame 020767/0024 →
Assignment of Assignor's Interest Oct 9, 2015
From: CLEARWATER INTERNATIONAL, L.L.C.
To: LUBRIZOL OILFIELD SOLUTIONS, INC.
Reel/Frame 036822/0379 →