Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642864 | Chipper vacuum shredder system and apparatus | Donald G. Penkoske, Gerald C. Burmesch | 1997-07-01 |
| RE34057 | Steering mechanism for a zero turning radius vehicle | — | 1992-09-08 |
| 4790399 | Steering mechanism for a zero turning radius vehicle | — | 1988-12-13 |