Assignment of Assignor's Interest

Recorded: 2005-01-31 Pages: 4

Assignor

OSCA, INC.

Executed: 2002-09-30

Assignee

BJ SERVICES COMPANY, U.S.A.

5500 NORTHWEST CENTRAL DRIV, HOUSTON, TEXAS, 77092

Covered Property (1)

Well treatment fluid

Application: 10/973,755 →

Publication: US 2005/0113264

Related Assignments (2)

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