Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5431079 | Full-dumping tremolo guitar | — | 1995-07-11 |
| 5162603 | Muting for touch guitar | — | 1992-11-10 |
| 5018423 | Neck adjustment mechanism for stringed instruments | David Bunker | 1991-05-28 |
| 4201108 | Electric stringed instrument | — | 1980-05-06 |