Granted Patent
Utility
US 5,117,196 · App. 07/512,960
Optical amplifier gain control
Inventors:
Richard E. Epworth, Kevin C. Byron, Robert A. Baker, Nigel Taylor
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Apr 23, 1990
Inventors
Richard E. Epworth
Kevin C. Byron
Robert A. Baker
Nigel Taylor
Assignee (at issue)
STC PLC
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.