Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D559167 | Tire tread | Oliver Knispel | 2008-01-08 |
| D512682 | Tire tread | Helmut Meister, Oliver Knispel | 2005-12-13 |
| 5435366 | Pneumatic tire with tread having good aqua-planing performance and good winter characteristics | Karl G. Voigt | 1995-07-25 |
| D354029 | Vehicle tire | Karl G. Voigt | 1995-01-03 |