Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619754 | Power buggy | Lee J. Weber, Jeff A. Himmelsbach | 2003-09-16 |
| 6457902 | Truss screed with covered vibrator shaft | Thomas G. Artzberger | 2002-10-01 |
| 6322151 | Power buggy | Steven E. Jansen, Alan D. Bengtson, Robert M. Motl | 2001-11-27 |
| 6155648 | Power buggy | Steven E. Jansen, Alan D. Bengtson, Robert M. Motl | 2000-12-05 |
| D410313 | Power buggy | Steven E. Jansen, Alan D. Bengtson | 1999-05-25 |