Granted Patent
Utility
US 5,910,097 · App. 08/895,900
Internal combustion engine exhaust emission control system with adsorbers for nitrogen oxides
Inventors:
Walter Boegner, Karl-Ernst Haak, Bernd Krutzsch, Wim Verrelst, Dirk Voigtlaender, Guenter Wenninger, Friedrich Wirbeleit
Patented Case
View Patent ↗
Granted: Jun 8, 1999
Filed: Jul 17, 1997
Inventors
Walter Boegner
Karl-Ernst Haak
Bernd Krutzsch
Wim Verrelst
Dirk Voigtlaender
Guenter Wenninger
Friedrich Wirbeleit
Assignee (at issue)
Daimler-Benz 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.