Granted Patent
Utility
US 6,818,329 · App. 10/678,856
Organic electroluminescent devices having a metal sub-layer within a hole-transporting region
Inventors:
Liang-Sheng Liao, Joseph K. Madathil
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Oct 3, 2003
Inventors
Liang-Sheng Liao
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.