Granted Patent
Utility
US 6,487,336 · App. 09/976,404
WDM channel equalization and control
Inventor:
Xiaotian Steve Yao
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Oct 11, 2001
Inventor
Xiaotian Steve Yao
Assignee (at issue)
General Photonics 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.