Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5906267 | Zero pressure accumulation conveyor | Martin A. Heit, John J. Wilkins | 1999-05-25 |
| 5582287 | Drive chain for accumulation conveyor | Martin A. Heit, John J. Wilkins | 1996-12-10 |
| 5316130 | Zero pressure accumulation conveyor | Martin A. Heit, John J. Wilkins | 1994-05-31 |