Granted Patent
Utility
US 6,690,850 · App. 09/874,338
Article comprising a reflection-type spectral equalizer/optical switch
Inventor:
Dennis S. Greywall
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Jun 5, 2001
Inventor
Dennis S. Greywall
Assignees (at issue)
Agere Systems Inc.
LUCENT TECHNOLOGIES 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.