Patent Assignment
Reel/Frame 043621/0845
Assignment of Assignor's Interest
Recorded: 2017-09-19
Pages: 3
Assignors
RAO, NARASIMHA M.
Executed: 2012-03-02
HATCH, STEVEN R.
Executed: 2012-02-29
VON DRASEK, WILLIAM A.
Executed: 2012-03-01
Assignee
NALCO COMPANY
1601 WEST DIEHL ROAD, NAPERVILLE, ILLINOIS, 60563-1198
Covered Property
(1)
Treatment of Industrial Water Systems
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.