Granted Patent
Utility
US 6,312,839 · App. 09/568,021
Blue-light emitting compound and display device adopting the same as color developing substance
Inventors:
Dong Hyun Kim, Han-sung Yu, Soon-Ki Kwon, Dong Cheol Shin, Yun-Hi Kim
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: May 10, 2000
Inventors
Dong Hyun Kim
Han-sung Yu
Soon-Ki Kwon
Dong Cheol Shin
Yun-Hi Kim
Assignee (at issue)
Samsung Display Devices 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.