Granted Patent
Utility
US 6,181,221 · App. 09/167,053
Reflective waveguide variable power divider/combiner
Inventors:
Rolf Kich, James M. Barker
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Oct 6, 1998
Inventors
Rolf Kich
James M. Barker
Assignee (at issue)
HUGHES ELECTRONICS LIMITED
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.