Granted Patent
Utility
US 6,614,983 · App. 10/033,687
Variable optical attenuator
Inventors:
Kun-Tsan Wu, Chien-Cheng Chen
Patented Case
View Patent ↗
Granted: Sep 2, 2003
Filed: Dec 27, 2001
Inventors
Kun-Tsan Wu
Chien-Cheng Chen
Assignee (at issue)
Hon Hai Precision Ind. Co., Ltd.
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.