Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5712327 | Soft gas permeable contact lens having improved clinical performance | Mei Chang | 1998-01-27 |
| 5258490 | Non-irritating soft gas permeable contact lens and process for producing same | — | 1993-11-02 |
| 4343927 | Hydrophilic, soft and oxygen permeable copolymer compositions | — | 1982-08-10 |
| 4182822 | Hydrophilic, soft and oxygen permeable copolymer composition | — | 1980-01-08 |