Patent Assignment
Reel/Frame 031781/0555
Assignment of Assignor's Interest
Recorded: 2013-12-13
Pages: 3
Assignor
TONG, DAVID YOUDONG
Executed: 2013-12-02
Assignee
ECOLAB USA INC.
1601 WEST DIEHL ROAD, NAPERVILLE, ILLINOIS, 60563-1198
Covered Property
(1)
Nitroxide Hydroxylamine and Phenylenediamine Combinations as Polymerization Inhibitors for Ethylenically Unsaturated Monomer Processes
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.