Granted Patent
Utility
US 6,181,853 · App. 09/392,831
Wavelength division multiplexing/demultiplexing device using dual polymer lenses
Inventor:
Robert K. Wade
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Sep 8, 1999
Inventor
Robert K. Wade
Assignee (at issue)
LightChip, 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.