Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5965661 | Unvulcanized rubber mixture for treads of vehicle pneumatic tires | Joachim Dumke, Anja Schneider, Wolfgang Loreth | 1999-10-12 |
| 5614041 | Pneumatic tire with an exterior additional layer on the tread strip for reinforcing the tread | Joachim Dumke, Reinhard Teves | 1997-03-25 |