Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10782541 | Method for designing a lens shape and spectacle lens | Ray Steven Spratt, Philipp Ellinger, Helmut Wietschorke, Angela Nolan | 2020-09-22 |
| 10775641 | Method for designing a lens shape and spectacle lens | Ray Steven Spratt, Philipp Ellinger, Helmut Wietschorke, Angela Nolan | 2020-09-15 |
| 10775642 | Method for designing a lens shape and spectacle lens | Ray Steven Spratt, Philipp Ellinger, Helmut Wietschorke, Angela Nolan | 2020-09-15 |