Granted Patent
Utility
US 5,714,768 · App. 08/547,349
Second-layer phase change memory array on top of a logic device
Inventors:
Stanford R. Ovshinsky, Guy Wicker
Patented Case
View Patent ↗
Granted: Feb 3, 1998
Filed: Oct 24, 1995
Inventors
Stanford R. Ovshinsky
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.