Granted Patent
Utility
US 5,842,340 · App. 08/806,179
Method for controlling the level of oxygen stored by a catalyst within a catalytic converter
Inventors:
Kevin J. Bush, Bruce A. Church, David Frankowski, Darren Schumacher, Michael A. Badalament
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Feb 26, 1997
Inventors
Kevin J. Bush
Bruce A. Church
David Frankowski
Darren Schumacher
Michael A. Badalament
Assignee (at issue)
Motorola, 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.