Granted Patent
Utility
US 6,373,604 · App. 09/473,774
Optical MUX/DEMUX
Inventor:
Ping Xie
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Dec 29, 1999
Inventor
Ping Xie
Assignee (at issue)
New Focus, 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.