Granted Patent
Utility
US 6,650,801 · App. 10/222,716
Reversible optical circulator utilizing a bi-morphic piezoelectric apparatus
Inventors:
Shudong Wu, Simon Cao, Thomas Cooney, Weicheng Chen
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Aug 15, 2002
Inventors
Shudong Wu
Simon Cao
Thomas Cooney
Weicheng Chen
Assignee (at issue)
Avanex 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.