Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5172894 | Dual elastomeric/fluid engine mount | Richard D. Hein, Bradley G. Hampton | 1992-12-22 |
| 4865721 | Vertical-drop grain aspirator | Charles Anthony Smith | 1989-09-12 |
| 4817909 | Elastomeric hanger structure | — | 1989-04-04 |