Granted Patent
Utility
US 6,637,393 · App. 10/056,379
HCCI engine combustion control apparatus and method
Inventor:
Don R. Sutherland
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Jan 24, 2002
Inventor
Don R. Sutherland
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.