Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441795 | Molded multifocal lens and mold assembly | — | 1984-04-10 |
| 4292030 | Teaching device for progressive power lenses | Wiktor J. Rupp | 1981-09-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441795 | Molded multifocal lens and mold assembly | — | 1984-04-10 |
| 4292030 | Teaching device for progressive power lenses | Wiktor J. Rupp | 1981-09-29 |