Granted Patent
Utility
US 6,400,479 · App. 09/467,607
Optical power balancer for optical amplified WDM networks
Inventors:
Jianying Zhou, Richard A. Barry, Naimish Patel
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Dec 20, 1999
Inventors
Jianying Zhou
Richard A. Barry
Naimish Patel
Assignee (at issue)
Sycamore Networks, 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.