Granted Patent
Utility
US 6,294,140 · App. 09/409,744
Layered noble metal-containing exhaust gas catalyst and its preparation
Inventors:
Lothar Mussmann, Dieter Lindner, Michael Harris, Thomas Kreuzer, Egbert Lox
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Oct 1, 1999
Inventors
Lothar Mussmann
Dieter Lindner
Michael Harris
Thomas Kreuzer
Egbert Lox
Assignee (at issue)
Degussa AG
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.