Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4492776 | Hydrogel contact lenses for permanent wear | Barry C. Holdstock | 1985-01-08 |
| 4451630 | Hydrogel contact lenses for permanent wear | Barry C. Holdstock | 1984-05-29 |
| 4419463 | Preparation of cross-linked hydrogel copolymers for contact lenses | Barry C. Holdstock | 1983-12-06 |
| 4361657 | Cross-linked hydrogel copolymers for contact lenses | Barry C. Holdstock | 1982-11-30 |