Granted Patent
Utility
US 6,187,063 · App. 09/081,867
Aqueous emulsion fuels from petroleum residuum-based fuel oils
Inventor:
Rudolf W. Gunnerman
Patented Case
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Granted: Feb 13, 2001
Filed: May 20, 1998
Inventor
Rudolf W. Gunnerman
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.