Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054843 | Bonded composite insulated floor construction | — | 1991-10-08 |
| 4562968 | Pneumatic spreader | Gerald L. Widmer | 1986-01-07 |
| 4288034 | Boom shock and tilt system | Gerald L. Widmer, Richard H. Pardee | 1981-09-08 |