Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5983463 | Latchplate or tongue assembly with dual mode of operation | David Prentkowski, Trevor P. Ashline | 1999-11-16 |
| 5107982 | Conveyor apparatus | — | 1992-04-28 |
| D295567 | Combined air filteration housing and conveyor unit | Rutherford L. Cooper | 1988-05-03 |