Granted Patent
Utility
US 6,069,442 · App. 08/937,217
Organic electroluminescent device with inorganic electron transporting layer
Inventors:
Liang-Sun Hung, Joseph K. Madathil
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Sep 18, 1997
Inventors
Liang-Sun Hung
Joseph K. Madathil
Assignee (at issue)
EASTMAN KODAK COMPANY
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.