Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6322151 | Power buggy | Gregory S. Dombek, Steven E. Jansen, Alan D. Bengtson | 2001-11-27 |
| 6155648 | Power buggy | Gregory S. Dombek, Steven E. Jansen, Alan D. Bengtson | 2000-12-05 |
| 5993109 | Power trowel with counterbalanced trowel blade pitch adjust assembly | Ronald R. Sartler, Todd J. Lutz, Darin Noyes | 1999-11-30 |
| 5340233 | Pneumatically operated rammer | — | 1994-08-23 |