Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6371490 | Flat gasket | Wilhelm Kullen, Wolfgang Wondraschek | 2002-04-16 |
| 6371492 | Gasket, in particular, for motor vehicles | — | 2002-04-16 |
| 6309157 | Screw with sleeve | Erich Amann | 2001-10-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6371490 | Flat gasket | Wilhelm Kullen, Wolfgang Wondraschek | 2002-04-16 |
| 6371492 | Gasket, in particular, for motor vehicles | — | 2002-04-16 |
| 6309157 | Screw with sleeve | Erich Amann | 2001-10-30 |