Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6507240 | Hybrid audio amplifier | — | 2003-01-14 |
| 5705950 | Hybrid solid state/vacuum tube audio amplifier | — | 1998-01-06 |
| 5343159 | Direct box employing hybrid vacuum tube and solid state circuitry | — | 1994-08-30 |
| 5022305 | Tube overdrive pedal operable using low voltage DC battery eliminator | — | 1991-06-11 |
| 4987381 | Tube sound solid-state amplifier | — | 1991-01-22 |