Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805231 | Apparatus for detecting an electronic surveillance device | — | 1989-02-14 |
| 4414534 | Radio frequency detection circuitry having noise discrimination capability | — | 1983-11-08 |
| 4399556 | Device for locating audio surveillance apparatus | — | 1983-08-16 |
| 4368539 | Transmitter detector | — | 1983-01-11 |
| 4264978 | Device for locating audio surveillance apparatus | — | 1981-04-28 |