Granted Patent
Utility
US 6,361,864 · App. 09/243,674
Method for making high-efficacy and long life electroluminescent phophor
Inventors:
Chen-Wen Fan, Richard G. W. Gingerich, Dale E. Benjamin
Patented Case
View Patent ↗
Granted: Mar 26, 2002
Filed: Feb 2, 1999
Inventors
Chen-Wen Fan
Richard G. W. Gingerich
Dale E. Benjamin
Assignee (at issue)
OSRAM SYLVANIA 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.