Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10308322 | Onboard boat lift with actuator in hollow tube | — | 2019-06-04 |
| 9950772 | Onboard boat lift structure and method | — | 2018-04-24 |
| 8430045 | On board lift leg construction for pontoon boats with onboard engine | Troy L. Hewitt, Kent M. Evans | 2013-04-30 |
| 5915668 | Fail safe valve actuator | Semor D. Tofte | 1999-06-29 |
| 5558034 | Lift transportable with pontoon boats or the like | — | 1996-09-24 |
| 5333559 | Row crop cultivator and seeding attachment | James A. Johnson, Vincent J. Tomlonovic | 1994-08-02 |
| 4632417 | Bi-fold hinge for a folding toolbar | — | 1986-12-30 |
| 4467872 | Telescoping row marker | — | 1984-08-28 |
| 4267767 | Position lock | Richard L. Peterson, Richard H. Schulz | 1981-05-19 |