Granted Patent
Utility
US 6,758,179 · App. 10/375,513
Method and apparatus for controlling a variable valve system for an internal combustion engine
Inventors:
Daniel L. McKay, Jeffrey M. Pfeiffer, Amanpal S. Grewal
Patented Case
View Patent ↗
Granted: Jul 6, 2004
Filed: Feb 26, 2003
Inventors
Daniel L. McKay
Jeffrey M. Pfeiffer
Amanpal S. Grewal
Assignee (at issue)
Delphi Technologies
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.