Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879711 | Satellite communications system employing frequency reuse | — | 1989-11-07 |
| 4872015 | Satellite communications system for mobile users | — | 1989-10-03 |
| 4858229 | Filter interconnection matrix | James D. Thompson | 1989-08-15 |
| 4831619 | Satellite communications system having multiple downlink beams powered by pooled transmitters | — | 1989-05-16 |
| 4831334 | Envelope amplifier | Thomas Hudspeth, David S. Kaplan | 1989-05-16 |
| 4827268 | Beam-forming network | — | 1989-05-02 |
| 4823341 | Satellite communications system having frequency addressable high gain downlink beams | — | 1989-04-18 |
| 4819227 | Satellite communications system employing frequency reuse | — | 1989-04-04 |