Granted Patent
Utility
US 6,281,997 · App. 08/927,781
Dense WDM optical multiplexer and demultiplexer
Inventors:
Stephen B. Alexander, Jean-Luc Archambault, Victor Mizrahi, Henry H. Yaffe
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Sep 11, 1997
Inventors
Stephen B. Alexander
Jean-Luc Archambault
Victor Mizrahi
Henry H. Yaffe
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.