Granted Patent
Utility
US 6,404,945 · App. 09/382,492
Wavelength division multiplexing/demultiplexing devices using homogeneous refractive index lenses
Inventor:
Robert K. Wade
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Aug 25, 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.