Granted Patent
Utility
US 5,920,409 · App. 08/820,491
Optoelectronic devices using persistent photoconductivity
Inventors:
James D. Chadi, George E. Devlin, Richard A. Linke, Robert L. MacDonald, Tineke Thio
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: May 31, 1996
Inventors
James D. Chadi
George E. Devlin
Richard A. Linke
Robert L. MacDonald
Tineke Thio
Assignee (at issue)
NEC Research Institute, 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.