Granted Patent
Utility
US 6,363,188 · App. 09/571,211
Mode expander with co-directional grating
Inventor:
Gerard A. Alphonse
Patented Case
View Patent ↗
Granted: Mar 26, 2002
Filed: May 16, 2000
Inventor
Gerard A. Alphonse
Assignee (at issue)
Princeton Lightwave, Inc.
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.