Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5732842 | Tank closure, especially for a motor vehicle | Georg Pollak | 1998-03-31 |
| 5230944 | Laminated material having latent inherent delamination potential | Ekkehard Beer, John D. Gribbin, Tobias Rentzsch | 1993-07-27 |
| 4817813 | Closure device in motor vehicles | — | 1989-04-04 |