Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6205774 | Method for detecting flow-reducing changes in an exhaust-gas catalyst body | Peter Hohner, Hartung Wilstermann | 2001-03-27 |
| 6170455 | Internal combustion engine | Werner Eissler, Arnold Kaden | 2001-01-09 |