Granted Patent
Utility
US 6,815,094 · App. 10/749,390
Diphenyl anthracene derivatives and organic electroluminescent device employing the same
Inventors:
Ji Hoon Lee, Soo-Hyoung Lee, Jhun-Mo Son
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Jan 2, 2004
Inventors
Ji Hoon Lee
Soo-Hyoung Lee
Jhun-Mo Son
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.