Granted Patent
Utility
US 5,814,514 · App. 08/677,516
Biodegradation of the gasoline oxygenates
Inventors:
Robert Jon Steffan, Charles Whitman Condee, Kevin Rock McClay, Jennifer Diane Michelson, Mary F. DeFlaun
Patented Case
View Patent ↗
Granted: Sep 29, 1998
Filed: Jul 10, 1996
Inventors
Robert Jon Steffan
Charles Whitman Condee
Kevin Rock McClay
Jennifer Diane Michelson
Mary F. DeFlaun
Assignee (at issue)
Envirogen, Inc.
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.