Granted Patent
Utility
US 6,506,504 · App. 09/351,163
Light-emitting compound and display device adopting light-emitting compound as color-developing substance
Inventors:
Soon-Ki Kwon, Yun-Hi Kim, Dong Cheol Shin, Jun Hwan Ahn, Han-sung Yu, Jung-hyun Lee
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Jul 12, 1999
Inventors
Soon-Ki Kwon
Yun-Hi Kim
Dong Cheol Shin
Jun Hwan Ahn
Han-sung Yu
Jung-hyun Lee
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.