Granted Patent
Utility
US 6,463,186 · App. 09/684,283
Magnetically controlled optical switch and optical attenuator
Inventor:
Yi-Qun Li
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Oct 6, 2000
Inventor
Yi-Qun Li
Assignee (at issue)
Intematix 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.