Granted Patent
Utility
US 6,824,892 · App. 09/986,136
Electroluminescent polymer having good carrier transport balance and electroluminescent device using the same
Inventors:
Byung Hee Sohn, Kwang-Yeon Lee, Jung Il Jin, Kyung-Kon Kim, Young-Rae Hong
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Nov 7, 2001
Inventors
Byung Hee Sohn
Kwang-Yeon Lee
Jung Il Jin
Kyung-Kon Kim
Young-Rae Hong
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.