Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5449858 | Guitar feedback device and method | Jonathan D. Phelps | 1995-09-12 |
| 5111167 | Surface acoustic wave device and method utilizing plural multi-strip couplers | — | 1992-05-05 |