Granted Patent
Utility
US 6,650,809 · App. 09/809,162
Multiple band optical multiplexer and demultiplexer
Inventors:
Jian-Jun He, Orazlo Berolo, Michael Davis
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Mar 16, 2001
Inventors
Jian-Jun He
Orazlo Berolo
Michael Davis
Assignee (at issue)
MetroPhotonics Inc.
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.