Granted Patent
Utility
US 6,646,413 · App. 09/987,444
Fuel cell system and method for operating the fuel cell system
Inventors:
Rainer Autenrieth, Gerhard Konrad, Karsten Ledwig, Michael Niehues, Markus Walter
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Nov 14, 2001
Inventors
Rainer Autenrieth
Gerhard Konrad
Karsten Ledwig
Michael Niehues
Markus Walter
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.