Granted Patent
Utility
US 5,940,196 · App. 08/858,067
Optical communications system with wavelength division multiplexing
Inventors:
David Piehler, Xingyu Zou, Alan C. Nilsson, Chien-Yu Kuo
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: May 16, 1997
Inventors
David Piehler
Xingyu Zou
Alan C. Nilsson
Chien-Yu Kuo
Assignee (at issue)
Harmonic Lightwaves
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.