Granted Patent
Utility
US 6,651,611 · App. 10/132,390
Combustion chamber for swirl flow two valve spark ignition direct injection engine
Inventors:
Andreas M. Lippert, Alexandros C. Alkidas, Ko-Jen Wu, William R. Matthes, Jennifer L. Liedtke, David L. Reuss, Alan W. Hayman, Gerald J. Schimelfening, Gerald A. Silvas
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Apr 25, 2002
Inventors
Andreas M. Lippert
Alexandros C. Alkidas
Ko-Jen Wu
William R. Matthes
Jennifer L. Liedtke
David L. Reuss
Alan W. Hayman
Gerald J. Schimelfening
Gerald A. Silvas
Assignee (at issue)
General Motors LLC
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.