Granted Patent
Utility
US 6,836,581 · App. 10/659,987
Optical filter for wavelength division multipled optical signals
Inventors:
Ping Xie, Simon Yuanxiang Wu, Yalan Mao, Wei Wang, R. Brad Bettman, Nadim Maluf
Patented Case
View Patent ↗
Granted: Dec 28, 2004
Filed: Sep 11, 2003
Inventors
Ping Xie
Simon Yuanxiang Wu
Yalan Mao
Wei Wang
R. Brad Bettman
Nadim Maluf
Assignee (at issue)
FINISAR 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.