Patent Assignment
Reel/Frame 027984/0839
Assignment of Assignor's Interest
Recorded: 2012-04-04
Pages: 3
Assignee
NALCO COMPANY
1601 W DIEHL ROAD, NAPERVILLE, ILLINOIS, 60563-1198
Covered Property
(1)
Chemical Additives to Inhibit the Air Oxidation and Spontaneous Combustion of Coal
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.