Granted Patent
Utility
US 6,618,413 · App. 10/024,239
Graded semiconductor layers for reducing threshold voltage for a nitride-based laser diode structure
Inventors:
David P. Bour, Michael A. Kneissl
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Dec 21, 2001
Inventors
David P. Bour
Michael A. Kneissl
Assignee (at issue)
Xerox Corporation
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.