Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691784 | Lawn edger attachment for tractors | Ivan W. Bontrager | 1987-09-08 |
| 4629006 | Lawn edger attachment for tractors | Elmer D. Voth | 1986-12-16 |
| 4497160 | Mower with lateral extension wings | Raymond J. Rilling, Elmer D. Voth | 1985-02-05 |
| 4487007 | Storage box for mower clippings | Raymond J. Rilling, Elmer D. Voth | 1984-12-11 |
| 4478026 | Gang reel mower | Raymond J. Rilling, Elmer D. Voth | 1984-10-23 |
| 4266617 | Tractor with full-floating tool bar | Raymond J. Rilling, Elmer D. Voth | 1981-05-12 |
| 4226074 | Lawnmower deck | Raymond J. Rilling, Elmer D. Voth | 1980-10-07 |
| 4204576 | Soil aerating device | Raymond J. Rilling, Elmer D. Voth | 1980-05-27 |
| 4200155 | Lawn edger attachment | Raymond J. Rilling, Elmer D. Voth | 1980-04-29 |