Granted Patent
Utility
US 6,263,135 · App. 09/323,094
Wavelength division multiplexing/demultiplexing devices using high index of refraction crystalline lenses
Inventor:
Robert K. Wade
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: Jun 1, 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.