Granted Patent
Utility
US 6,720,092 · App. 10/191,251
White organic light-emitting devices using rubrene layer
Inventor:
Tukaram K. Hatwar
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Jul 8, 2002
Inventor
Tukaram K. Hatwar
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.