Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358097 | Accumulation conveyor with retractable sensor | Douglas J. Bakkila, David Cotter, Bernard H. Woltjer, Arthur J. Terpstra, Jr. | 1994-10-25 |
| 4562921 | Track for conveyor chain | Hendrik Leemkuil, Peter M. Perdok | 1986-01-07 |
| 4425069 | Transport for loading semitrailers and the like | Charles W. Saur | 1984-01-10 |