Granted Patent
Utility
US 5,320,923 · App. 08/010,101
Reusable, positive-charging organic photoconductor containing phthalocyanine pigment, hydroxy binder and silicon stabilizer
Inventor:
Khe C. Nguyen
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Jan 28, 1993
Inventor
Khe C. Nguyen
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.