Granted Patent
Utility
US 6,809,333 · App. 10/451,677
Organic electroluminescence element
Inventors:
Hitoshi Ishikawa, Satoru Toguchi, Hiroshi Tada, Atsushi Oda
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Jun 25, 2003
Inventors
Hitoshi Ishikawa
Satoru Toguchi
Hiroshi Tada
Atsushi Oda
Assignee (at issue)
SAMSUNG DISPLAY 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.