Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10875140 | Manufacturing method for manufacturing a spectacle lens, spectacle lens and lens design method | Ray Steven Spratt, Philipp Ellinger, Michael Gall | 2020-12-29 |
| 10782541 | Method for designing a lens shape and spectacle lens | Ray Steven Spratt, Philipp Ellinger, Helmut Wietschorke, Saulius Raymond Varnas | 2020-09-22 |
| 10775641 | Method for designing a lens shape and spectacle lens | Ray Steven Spratt, Philipp Ellinger, Helmut Wietschorke, Saulius Raymond Varnas | 2020-09-15 |
| 10775642 | Method for designing a lens shape and spectacle lens | Ray Steven Spratt, Philipp Ellinger, Helmut Wietschorke, Saulius Raymond Varnas | 2020-09-15 |