Granted Patent
Utility
US 5,416,865 · App. 08/275,493
Optical waveguide gain-shaped amplifier including wavelength multiplexing coupler
Inventor:
Alan Fielding
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: Jul 15, 1994
Inventor
Alan Fielding
Assignee (at issue)
Nortel Networks Limited
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.