Granted Patent
Utility
US 5,720,893 · App. 08/641,607
Tapered beam expander waveguide integrated with a diode lasesr
Inventors:
Rafael Ben-Michael, Uziel Koren
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: May 1, 1996
Inventors
Rafael Ben-Michael
Uziel Koren
Assignee (at issue)
LUCENT TECHNOLOGIES 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.