Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7942415 | Mail sorting machine with improved diverter panel | Kenneth S. Hastings, John W. Sheffield | 2011-05-17 |
| D603629 | Double door for a postal sorting machine | Kenneth S. Hastings, John W. Sheffield | 2009-11-10 |
| 5598914 | Removable sidewall for a molded spiral chute | James Sulzer | 1997-02-04 |
| 4974215 | Loading dock range finding system | John Bolz, Craig Brunswick, David Klochan, William F. Koch, Ken Pastotnik +1 more | 1990-11-27 |