Granted Patent
Utility
US 6,627,340 · App. 09/687,718
Fuel cell hydrogen supply systems using secondary fuel to release stored hydrogen
Inventors:
Stanford R. Ovshinsky, Rosa Young
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: Oct 13, 2000
Inventors
Stanford R. Ovshinsky
Rosa Young
Assignee (at issue)
Energy Conversion Devices, Inc.
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.