Granted Patent
Utility
US 6,742,507 · App. 10/039,491
Feed composition modification for internal combustion engines
Inventors:
Bowie G. Keefer, Daniel K. Mather, David E. Foster, Denis J. Connor, Carl F. Hunter, Todd W. Smith
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Oct 26, 2001
Inventors
Bowie G. Keefer
Daniel K. Mather
David E. Foster
Denis J. Connor
Carl F. Hunter
Todd W. Smith
Assignee (at issue)
QuestAir Technologies 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.