Granted Patent
Utility
US 6,137,933 · App. 09/257,045
Integrated bi-directional dual axial gradient refractive index/diffraction grating wavelength division multiplexer
Inventors:
Boyd V. Hunter, Robert K. Wade, Joseph R. Dempewolf, Ray T. Chen
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Feb 25, 1999
Inventors
Boyd V. Hunter
Robert K. Wade
Joseph R. Dempewolf
Ray T. Chen
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.