Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7150352 | Curved belt conveyor | David Cotter, Kenneth J. Kooistra, Richard Hoisington | 2006-12-19 |
| 6971510 | Curved belt conveyor | David Cotter, Kenneth J. Kooistra, Richard Hoisington | 2005-12-06 |
| 6478142 | Contact assembly for accumulation conveyors | David Cotter, Ronald C. Ehlert, Kenneth J. Kooistra, Curtis E. LeMay | 2002-11-12 |
| 6065588 | Contact assembly for accumulation conveyors | David Cotter, Ronald C. Ehlert, Kenneth J. Kooistra | 2000-05-23 |