Granted Patent
Utility
US 6,607,704 · App. 09/682,781
Sulfur tolerant lean NOx trap
Inventors:
Diane Guttridge, Jun Li, Mohinder S. Chattha, Robert J. Kudla, William L. H. Watkins
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Oct 18, 2001
Inventors
Diane Guttridge
Jun Li
Mohinder S. Chattha
Robert J. Kudla
William L. H. Watkins
Assignee (at issue)
FORD GLOBAL TECHNOLOGIES, LLC
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.