Granted Patent
Utility
US 6,699,383 · App. 10/156,483
Method for determining a NOx concentration
Inventors:
Bertrand Lemire, Tim Walde
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: May 28, 2002
Inventors
Bertrand Lemire
Tim Walde
Assignee (at issue)
Siemens Aktiengesellschaft
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.