Granted Patent
Utility
US 5,959,749 · App. 09/081,666
Optical add/drop multiplexer/demultiplexer
Inventors:
David John Danagher, Alan Glen Solheim, Maurice O'Sullivan, Richard A. Habel, Kim B. Roberts, Duncan Forbes, Nigel Baker, Ian Hardcastle, Takis Hadjifotiou, Bipin Patel, Giuseppe Bordogna, James Harley
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: May 20, 1997
Inventors
David John Danagher
Alan Glen Solheim
Maurice O'Sullivan
Richard A. Habel
Kim B. Roberts
Duncan Forbes
Nigel Baker
Ian Hardcastle
Takis Hadjifotiou
Bipin Patel
Giuseppe Bordogna
James Harley
Assignee (at issue)
Nortel Networks Limited
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.