Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5350001 | Tire having a tread surface with fine cut-outs at the tire tread surface | Otto Beckmann, Ernst Petraschek | 1994-09-27 |
| 5137068 | Radial-ply tire for trucks with tread blocks divided into two parallelogram-shaped parts | Josef Stelzer | 1992-08-11 |