Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772777 | Temperature regulated hot plate for an electric coffee maker | Albrecht Weller, Karl Amsel, Bernd Trebitz, Jurgen Schmidt, Ernst Heimrath | 1988-09-20 |
| 4685229 | Air cushioned support sole plate | Bernd Trebitz, Albrecht Weller, Klaus Amsel | 1987-08-11 |