Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862368 | Method for adjusting optimal wheel slip | Friedrich Kost, Anton Van Zanten, Gerhard Kreisselmeier | 1989-08-29 |
| 4824187 | Pressure booster and modulator | Anton Van Zanten | 1989-04-25 |
| 4798991 | Surface-gap spark plug for internal combustion engines | Walter Benedikt, Werner Herden, Karl-Hermann Friese, Helmut Reum, Jurgen Schmatz +1 more | 1989-01-17 |