Granted Patent
Utility
US 5,268,086 · App. 07/741,378
Catalyst monitoring using ego sensors
Inventors:
Douglas R. Hamburg, Eleftherios M. Logothetis, Jacobus Hendrik Visser, Richard E. Soltis
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Aug 7, 1991
Inventors
Douglas R. Hamburg
Eleftherios M. Logothetis
Jacobus Hendrik Visser
Richard E. Soltis
Assignee (at issue)
Ford Motor Company
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.