Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4580883 | Progressive multifocal ophthalmic lenses | — | 1986-04-08 |
| 4537479 | Progressive multifocal ophthalmic lens | Sakiho Okazaki | 1985-08-27 |
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4580883 | Progressive multifocal ophthalmic lenses | — | 1986-04-08 |
| 4537479 | Progressive multifocal ophthalmic lens | Sakiho Okazaki | 1985-08-27 |