Granted Patent
Utility
US 6,766,077 · App. 09/986,828
Planar waveguide echelle grating device with astigmatic grating facets
Inventors:
Muthukumaran Packirisamy, Andre Delage
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Nov 13, 2001
Inventors
Muthukumaran Packirisamy
Andre Delage
Assignee (at issue)
LNL Technologies, 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.