Granted Patent
Utility
US 5,645,948 · App. 08/700,252
Blue organic electroluminescent devices
Inventors:
Jianmin Shi, Ching W. Tang, Chin H. Chen
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Aug 20, 1996
Inventors
Jianmin Shi
Ching W. Tang
Chin H. Chen
Assignee (at issue)
EASTMAN KODAK COMPANY
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.