Granted Patent
Utility
US 5,909,191 · App. 08/942,704
Multiple beam antenna and beamforming network
Inventors:
Edward Hirshfield, Evert C. Nygren, Ernesto A. Balderrama, George S. Cohen
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Oct 1, 1997
Inventors
Edward Hirshfield
Evert C. Nygren
Ernesto A. Balderrama
George S. Cohen
Assignee (at issue)
Space Systems/Loral, LLC
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.