Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6878020 | Jet boat emergency braking system | — | 2005-04-12 |
| 6652333 | Jet boat steering system | — | 2003-11-25 |
| 6015071 | Vehicle storage divider | Kevin J. Fellows, Philip P. Cannon, David J. Spykerman, Rollin E. Nothwehr | 2000-01-18 |
| 5967584 | Expandable trunk storage system | David John McCarthy, Russell P. Shafer, Jr., Jonathan Alan Dykstra, Donald L. Sauer, Chester R. Wisniewski +2 more | 1999-10-19 |
| 5421632 | Multiple visor system with concentric pivot axes | Edward T. Boerema | 1995-06-06 |