Granted Patent
Utility
US 6,318,075 · App. 09/522,091
Method and device for periodically desulphating a nitrogen oxide or sulphur oxide storage vessel with rich/lean engine cylinder distribution
Inventors:
Josef Gunther, Andreas Hertzberg, Christof Schon, Ralph Stetter, Dirk Voigtlander
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Mar 9, 2000
Inventors
Josef Gunther
Andreas Hertzberg
Christof Schon
Ralph Stetter
Dirk Voigtlander
Assignee (at issue)
Daimlerchrysler 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.