Granted Patent
Utility
US 6,494,937 · App. 09/967,172
Hydrogen purification devices, components and fuel processing systems containing the same
Inventors:
David J. Edlund, Charles R. Hill, William A. Pledger, R. Todd Studebaker
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: Sep 27, 2001
Inventors
David J. Edlund
Charles R. Hill
William A. Pledger
R. Todd Studebaker
Assignee (at issue)
Idatech, 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.