Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4450262 | Hydrophilic copolymer compositions useful as contact lenses | Nancy J. Drake, Michael D. Hilston | 1984-05-22 |
| 4379893 | Surface-treated soft contact lenses | Nancy J. Drake | 1983-04-12 |