Granted Patent
Utility
US 6,011,885 · App. 08/990,198
Integrated bi-directional gradient refractive index wavelength division multiplexer
Inventors:
Joseph R. Dempewolf, Robert K. Wade, Robert H. Dueck, Boyd V. Hunter, Alan E. Willner
Patented Case
View Patent ↗
Granted: Jan 4, 2000
Filed: Dec 13, 1997
Inventors
Joseph R. Dempewolf
Robert K. Wade
Robert H. Dueck
Boyd V. Hunter
Alan E. Willner
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.