Granted Patent
Utility
US 6,185,023 · App. 09/270,488
Optical add-drop multiplexers compatible with very dense WDM optical communication systems
Inventor:
Victor Mizrahi
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Mar 15, 1999
Inventor
Victor Mizrahi
Assignee (at issue)
Ciena 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.