Granted Patent
Utility
US 6,236,782 · App. 09/128,477
Grating assisted coupler devices
Inventors:
Anthony Stephen Kewitsch, George Rakuljic, Phil A. Willems, Xiaolin Tong
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Aug 4, 1998
Inventors
Anthony Stephen Kewitsch
George Rakuljic
Phil A. Willems
Xiaolin Tong
Assignee (at issue)
Arroyo Optics, 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.