Granted Patent
Utility
US 6,813,397 · App. 09/992,050
Micro-optic polarization beam multiplexing/de-multiplexing system
Inventor:
Dong Lin
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Nov 21, 2001
Inventor
Dong Lin
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.