Assignment of Assignor's Interest

Recorded: 2012-02-24 Pages: 3

Assignors

ERGANG, NICHOLAS S.

Executed: 2012-01-25

SARATOVSKY, IAN

Executed: 2012-02-06

CHEN, HUNG TING

Executed: 2012-01-25

Assignee

NALCO COMPANY

1601 W. DIEHL ROAD, NAPERVILLE, ILLINOIS, 60563

Covered Property (1)

Sulfur Containing Silica Particle

Patent: 8,932,549 →

Application: 13/269,116 →

Publication: US 2012/0276275

Related Assignments (2)

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