Granted Patent
Utility
US 6,226,117 · App. 09/092,419
Noise figure measurement of optical amplifiers by power substitution
Inventor:
Christian Hentschel
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: Jun 5, 1998
Inventor
Christian Hentschel
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.