Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10384492 | Tire with substantially helicoid-shaped sipe | Hans R. Dorfi, Robert W. Asper | 2019-08-20 |
| 10266014 | Tire having circumferentially biased sipe depths | John L. Turner | 2019-04-23 |