Granted Patent
Utility
US 6,498,665 · App. 09/377,747
System for adding/dropping wavelength division multiplexed optical signals
Inventors:
Corinne Chauzat, Paolo Ottolenghi, Stephane Ruggeri, Michel Sotom
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Aug 20, 1999
Inventors
Corinne Chauzat
Paolo Ottolenghi
Stephane Ruggeri
Michel Sotom
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.