Granted Patent
Utility
US 6,478,844 · App. 09/460,530
Method for making hydrogen storage alloy
Inventor:
Stanford R. Ovshinsky
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Dec 13, 1999
Inventor
Stanford R. Ovshinsky
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.