Granted Patent
Utility
US 6,145,303 · App. 09/276,131
Process for operating an exhaust gas treatment unit containing a sulfur trap and a nitrogen oxides storage catalyst
Inventors:
Wolfgang Strehlau, Ulrich Göbel, Egbert Lox, Wilfried Muller, Rainer Domesle
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Mar 25, 1999
Inventors
Wolfgang Strehlau
Ulrich Göbel
Egbert Lox
Wilfried Muller
Rainer Domesle
Assignee (at issue)
Degussa-Huels 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.