Granted Patent
Utility
US 6,162,453 · App. 09/389,950
C.sub.7 -C.sub.12 Diol & Diol alkoxylates as coupling agents for surfactant formulations
Inventor:
Robert O. Keys
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Sep 3, 1999
Inventor
Robert O. Keys
Assignee (at issue)
Witco Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.