Granted Patent
Utility
US 5,687,112 · App. 08/635,442
Multibit single cell memory element having tapered contact
Inventor:
Stanford R. Ovshinsky
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Apr 19, 1996
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.