Granted Patent
Utility
US 5,365,216 · App. 08/203,916
Catalyst monitoring using ego sensors
Inventors:
Allan Joseph Kotwicki, Douglas R. Hamburg
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Mar 1, 1994
Inventors
Allan Joseph Kotwicki
Douglas R. Hamburg
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.