Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4662646 | Trailing mower and drawbar articulation | James L. Wirsbinski, Dale A. Manteufel | 1987-05-05 |
| 4582504 | Trailing mower, belt, clutch and brake assembly | James L. Wirsbinski, Dale A. Manteufel | 1986-04-15 |
| 4421177 | End drive rotary cultivator | Roger T. Gault | 1983-12-20 |
| 4367603 | Snow caster having ring gear and spur gear drive means | — | 1983-01-11 |
| 4358300 | Welding fume and spark trap | James L. Wirsbinski | 1982-11-09 |
| 4204293 | Differential unit | — | 1980-05-27 |