Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5601417 | Hydraulic pump with ball bearing pistons | John Hoffman, Charles Lord | 1997-02-11 |
| 5114183 | Recreational vehicle frame | Ramon Michen | 1992-05-19 |
| 4828148 | Fluid mixing dispenser | John F. Trout | 1989-05-09 |
| 4418798 | Disc brake with wedge pins | Donald D. Johannesen | 1983-12-06 |
| 4310075 | Disc brake | Donald D. Johannesen | 1982-01-12 |