Assignment of Assignor's Interest

Recorded: 2002-06-17 Received: 2002-06-26 Pages: 3

Assignors

RISTOL, GUILLEM SOLE

Executed: 2002-05-31

JOHNSON, CATHY C.

Executed: 2002-06-10

Assignee

ONDEO NALCO COMPANY

ONDEO NALCO CENTER, NAPERVILLE, IL, 60563, UNITED STATES

Covered Property (1)

Use of Anionic Dispersion Polymers as Viscosity Modifiers in Aqueous Drilling Fluids

Application: 10/173,253 →