Granted Patent
Utility
US 6,117,364 · App. 09/321,240
Acid corrosion inhibitor
Inventors:
Mark A. Vorderbruggen, Dennis A. Williams
Patented Case
View Patent ↗
Granted: Sep 12, 2000
Filed: May 27, 1999
Inventors
Mark A. Vorderbruggen
Dennis A. Williams
Assignee (at issue)
Nalco/Exxon Energy Chemicals, 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.