Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D679241 | Tire | Helmut Wolfgang Fehl, Wolfgang Karl Maegerle, Bernd Richard Loewenhaupt, Hartono Edy, Jaap Leendertse +1 more | 2013-04-02 |
| 7467652 | Three-dimensional tread sipes and mold blade for forming three-dimensional tread sipes | Oliver Knispel, Thomas Michael Hirsch, Helmut Wolfgang Fehl | 2008-12-23 |
| 7434606 | Pneumatic tire with tread having continuous ribs and block rows | Tadao Matsumoto | 2008-10-14 |
| D558125 | Tire tread | Christian Windisch, Helmut Wolfgang Fehl, Yasuo Wada, Osamu Abe | 2007-12-25 |
| 6796350 | Vehicle tire having non-uniformly profiled tread with respect to its center | Manfred Gerresheim, Klaus-Dieter Riehl, Hideaki Sugihara | 2004-09-28 |
| D491518 | Tire tread | Helmut Wolfgang Fehl, Christian Windisch, Wako Iwamura, Tadao Matsumoto, Nobuaki Minami | 2004-06-15 |
| D491517 | Tire Tread | Tadao Matsumoto, Nobuaki Minami, Helmut Wolfgang Fehl, Christian Windisch | 2004-06-15 |
| 6672351 | Vehicle tire with continously reducing vertical spacing of tread surface with respect to breaker | Manfred Gerresheim, Klaus-Dieter Riehl, Hans Winter | 2004-01-06 |
| 6668887 | Vehicle tire with reinforcement beneath overwide circumferential tread groove | Manfred Gerresheim, Klaus-Dieter Riehl, Hans Winter | 2003-12-30 |
| D466472 | Tire tread | Osamu Abe | 2002-12-03 |
| 5996661 | Vehicle tire | Manfred Gerresheim, Dieter Glotzbach, Joachim Riegel | 1999-12-07 |
| D409956 | Vehicle tire | Manfred Gerresheim, Dieter Glotzbach, Joachim Riegel | 1999-05-18 |