Granted Patent
Utility
US 6,651,616 · App. 09/979,439
Method for operating a four-stroke reciprocating internal combustion engine with alternating compression ignition and externally supplied ignition
Inventors:
Andreas Juretzka, Rolf-Gunther Nieberding
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Feb 15, 2002
Inventors
Andreas Juretzka
Rolf-Gunther Nieberding
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.