Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11372264 | Progressive spectacle lens with a variable refractive index, and method for designing and producing same | Christoph Menke, Helmut Wietschorke | 2022-06-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11372264 | Progressive spectacle lens with a variable refractive index, and method for designing and producing same | Christoph Menke, Helmut Wietschorke | 2022-06-28 |