Granted Patent
Utility
US 5,166,758 · App. 07/642,984
Electrically erasable phase change memory
Inventors:
Stanford R. Ovshinsky, Stephen J. Hudgens, Wolodymyr Czubatyj, David Strand, Guy Wicker
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Jan 18, 1991
Inventors
Stanford R. Ovshinsky
Stephen J. Hudgens
Wolodymyr Czubatyj
David Strand
Guy Wicker
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.