Granted Patent
Utility
US 6,748,917 · App. 09/936,339
Direct injection spark ignition engine
Inventors:
Michael Hoffmann, Uwe Kreckel
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: May 10, 2002
Inventors
Michael Hoffmann
Uwe Kreckel
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.