Granted Patent
Utility
US 6,337,755 · App. 09/193,753
Polarization independent all-optical regenerators
Inventor:
Xiang Cao
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Nov 17, 1998
Inventor
Xiang Cao
Assignee (at issue)
Qtera 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.