Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5950368 | Waterproof pit cover | — | 1999-09-14 |
| 4446903 | Non-pneumatic tire | Richard L. Clinefelter | 1984-05-08 |
| 4253893 | Non-pneumatic tire | Richard L. Clinefelter | 1981-03-03 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5950368 | Waterproof pit cover | — | 1999-09-14 |
| 4446903 | Non-pneumatic tire | Richard L. Clinefelter | 1984-05-08 |
| 4253893 | Non-pneumatic tire | Richard L. Clinefelter | 1981-03-03 |