Granted Patent
Utility
US 6,279,538 · App. 09/382,189
Method for evaluating an ion current signal of a self-igniting internal combustion engine
Inventors:
Ruediger Herweg, Katsuyoshi Koyanagi, Rudolf Maly, Gerhard Muenkel, Gregor Renner, Hartung Wilstermann
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Aug 23, 1999
Inventors
Ruediger Herweg
Katsuyoshi Koyanagi
Rudolf Maly
Gerhard Muenkel
Gregor Renner
Hartung Wilstermann
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.