Assignment of Assignor's Interest

Recorded: 2005-04-12 Pages: 9

Assignor

CLEARWATER, INC.

Executed: 2002-10-25

Assignee

CLEARWATER INTERNATIONAL L.L.C.

515 POST OAK BOULEVARD, SUITE 600, HOUSTON, TEXAS, 77027

Covered Property (1)

Invert emulsion drilling fluid and process

Application: 10/267,728 →

Publication: US 2003/0092580

Related Assignments (1)

Other recorded transfers of the patent in this record — the chain of ownership.