Granted Patent
Utility
US 6,580,856 · App. 10/134,398
Wavelength division multiplexing/demultiplexing devices using homogeneous refractive index lenses
Inventor:
Robert K. Wade
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Apr 30, 2002
Inventor
Robert K. Wade
Assignee (at issue)
Confluent Photonics Corporation
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.