Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D281772 | Hydraulic shock absorber | Robert J. Heideman | 1985-12-17 |
| 4482035 | Shock absorber | Robert J. Heideman | 1984-11-13 |
| 4321987 | Shock absorber | Robert J. Heideman | 1982-03-30 |
| 4298101 | Shock absorber | Robert J. Heideman | 1981-11-03 |