Granted Patent
Utility
US 5,912,477 · App. 08/859,675
High efficiency light emitting diodes
Inventor:
Gerald H. Negley
Patented Case
View Patent ↗
Granted: Jun 15, 1999
Filed: May 20, 1997
Inventor
Gerald H. Negley
Assignee (at issue)
Cree Research Inc.
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.