Granted Patent
Utility
US 5,933,260 · App. 08/846,027
Method and system for wavelength division multiplexer
Inventors:
Xiaofan Cao, Yu Zheng
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: Apr 25, 1997
Inventors
Xiaofan Cao
Yu Zheng
Assignee (at issue)
Oplink Communications, LLC
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.