Granted Patent
Utility
US 5,770,041 · App. 08/804,050
Non-enolizable oxygenates as antifoulants
Inventors:
Vincent E. Lewis, Robert D. McClain, Michael K. Poindexter
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Feb 21, 1997
Inventors
Vincent E. Lewis
Robert D. McClain
Michael K. Poindexter
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.