Granted Patent
Utility
US 6,309,486 · App. 09/697,390
Polychromatic organic electroluminescent device and method of manufacturing the same
Inventors:
Koji Kawaguchi, Toshiyuki Kanno
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Oct 26, 2000
Inventors
Koji Kawaguchi
Toshiyuki Kanno
Assignee (at issue)
FUJI ELECTRIC CO., LTD.
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.