Granted Patent
Utility
US 6,350,421 · App. 09/378,693
Nitrogen oxide storage material and nitrogen oxide storing catalyst prepared therefrom
Inventors:
Wolfgang Strehlau, Ulrich Göbel, Lothar Mussmann, Rainer Domesle
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: Aug 23, 1999
Inventors
Wolfgang Strehlau
Ulrich Göbel
Lothar Mussmann
Rainer Domesle
Assignee (at issue)
DMC, 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.