Granted Patent
Utility
US 6,647,048 · App. 09/844,702
Grating-outcoupled surface-emitting lasers using quantum wells with thickness and composition variation
Inventor:
Gary A. Evans
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Apr 27, 2001
Inventor
Gary A. Evans
Assignee (at issue)
PHOTODIGM 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.