Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5119322 | Digital DTMF tone detector | — | 1992-06-02 |
| 4862452 | Digital signal processing system | A. David Milton | 1989-08-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5119322 | Digital DTMF tone detector | — | 1992-06-02 |
| 4862452 | Digital signal processing system | A. David Milton | 1989-08-29 |