Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4947436 | Speaker verification using memory address | Paul C. Millar | 1990-08-07 |
| 4686486 | Active filter having series resonant active filter terminated by parallel resonant active filter | Phillip J. Hunter | 1987-08-11 |
| 4315229 | Bandstop filters | Philip E. Greenaway, Charles Nightingale | 1982-02-09 |
| 4217562 | Equalizer networks providing a bump shaped response | John M. Rollett | 1980-08-12 |