Granted Patent
Utility
US 6,353,691 · App. 09/492,966
Method and system for splitting or combining optical signal
Inventors:
Wei Li, Yanfeng Yang
Patented Case
View Patent ↗
Granted: Mar 5, 2002
Filed: Jan 27, 2000
Inventors
Wei Li
Yanfeng Yang
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.