Granted Patent
Utility
US 6,236,781 · App. 09/409,463
Duplicated-port waveguide grating router having substantially flat passbands
Inventors:
Christopher Doerr, Randy Clinton Giles
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Sep 30, 1999
Inventors
Christopher Doerr
Randy Clinton Giles
Assignee (at issue)
Agere Systems Optoelectronics Guardian Corporation
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.