Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5834665 | Guitar bridge bias converter | Mark Jefferson Hanns | 1998-11-10 |
| 5058284 | Precision gauge assembly | — | 1991-10-22 |
| 4838744 | Intermodal system for transporting a semi-trailer on two railway vehicles | Charles M. Bakka, Roger D. Sims | 1989-06-13 |