Granted Patent
Utility
US 6,328,821 · App. 09/444,812
Modified magnesium based hydrogen storage alloys
Inventors:
Stanford R. Ovshinsky, Rosa Young
Patented Case
View Patent ↗
Granted: Dec 11, 2001
Filed: Nov 22, 1999
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.