Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8502053 | Pick for string instruments | Paul Gustafson, James Harrell Cobb | 2013-08-06 |
| 5447187 | Truck door cushion | — | 1995-09-05 |
| 5129786 | Variable pitch pan blade retention arrangement | — | 1992-07-14 |
| 4789304 | Insulated propeller blade | David P. Nagle | 1988-12-06 |