Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6149528 | Amusement ride vehicle folding seat | David G. Volz, Chad E. Brose, Joseph o Chadwick | 2000-11-21 |
| D429625 | Support frame for mechanical wedge grip | Steven E. Sikkila, Daniel Ewert | 2000-08-22 |
| D413506 | Support frame for a mechanical wedge grip | Steven E. Sikkila, Daniel Ewert | 1999-09-07 |