Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6375360 | Ball bearing | Ulrike Weisskopf | 2002-04-23 |
| 6269870 | Exhaust heat exchanger | Matthias Banzhaf, Martin Bauer, Claus Beck, Martin Bott, Steffen Brunner +11 more | 2001-08-07 |
| 6158896 | Play-free radial ball bearing | Alexander Zernickel, Herbert Erhart | 2000-12-12 |
| 5839835 | Self-aligning ball bearing | Alexander Zernickel, Herbert J. Erhardt | 1998-11-24 |
| 4323275 | Sun visor with auxiliary visors | — | 1982-04-06 |
| 4297750 | Toilet and cover | — | 1981-11-03 |