Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11160370 | High-strength colored glass ceramics as a cooktop, smooth on both sides | Birgit Doerk, Evelin Weiss, Thomas Zenker, Ulf Hoffmann, Silke Knoche +4 more | 2021-11-02 |
| RE48575 | Display device, in particular for cooktops | Evelin Weiss, Gerold Ohl, Thomas Zenker | 2021-06-01 |