Granted Patent
Utility
US 6,654,518 · App. 09/704,111
Tap output collimator
Inventor:
Zhimin Liu
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Oct 30, 2000
Inventor
Zhimin Liu
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.