Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9591866 | Stable frozen aerated products manufactured by low-temperature extrusion technology | Steffen Dose, Wilhelm Karl Silberzahn | 2017-03-14 |
| 8956680 | Natural stabiliser system for frozen dessert | Karl Wilhelm Silberzahn | 2015-02-17 |