Granted Patent
Utility
US 6,824,593 · App. 10/728,473
Hydrogen purification membranes, components and fuel processing systems containing the same
Inventors:
David J. Edlund, William A. Pledger, R. Todd Studebaker
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Dec 5, 2003
Inventors
David J. Edlund
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.