Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681886 | Caoutchouc mixture, tread made therefrom and tire with this tread | Gunter Dietrich, Ulrich Steinbrecht | 1997-10-28 |
| 5604286 | Caoutchouc mixture, tread made therefrom and tire with this tread | G unter Dietrich, Ulrich Steinbrecht | 1997-02-18 |