Granted Patent
Utility
US 5,593,933 · App. 08/521,500
Refractory oxides based silver-tungsten lean-NOx catalyst
Inventors:
Mohinder S. Chattha, Robert J. Kudla
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: Aug 30, 1995
Inventors
Mohinder S. Chattha
Robert J. Kudla
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.