Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8642876 | Microprocessor controlled, accelerometer based guitar pickup switching system | Leonard A. DeRoche, Paul John Schwab, Nelson Spike Jones, John Boyet Stevens | 2014-02-04 |
| 4625428 | Lighted plumb bob | — | 1986-12-02 |