Granted Patent
Utility
US 6,696,572 · App. 10/167,628
Corrosion inhibitor compositions including quaternized compounds
Inventor:
George R. Meyer
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Jun 12, 2002
Inventor
George R. Meyer
Assignee (at issue)
Ondeo Nalco Energy Services, L.P.
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.