Granted Patent
Utility
US 6,310,690 · App. 09/388,350
Dense wavelength division multiplexer utilizing an asymmetric pass band interferometer
Inventors:
Simon Cao, Xiaoping Mao
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Sep 1, 1999
Inventors
Simon Cao
Xiaoping Mao
Assignee (at issue)
Avanex Corporation
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.