Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10838231 | Progressive spectacle lens having a variable refractive index and method for the design and production thereof | Christoph Menke, Helmut Wietschorke | 2020-11-17 |
| 10754157 | Optical element | Jens Hofmann, Wolf Krause, Joerg Puetz, Georg Michels | 2020-08-25 |
| 10558045 | Method for producing an optical element | Jens Hofmann, Wolf Krause, Joerg Puetz, Georg Michels | 2020-02-11 |