Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5473334 | Polarized antenna having longitudinal shunt slotted and rotational series slotted feed plates | Phillip Richardson | 1995-12-05 |
| 5369414 | Dual end resonant array antenna feed having a septum | Phillip Richardson | 1994-11-29 |
| 5097227 | Microwave oscillator position sensor | Han-Tzong Yuan, Hua Q. Tserng | 1992-03-17 |
| 5019831 | Dual end resonant slot array antenna feed having a septum | Phillip Richardson | 1991-05-28 |