Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6244708 | Contact lenses providing improved visual acuity | Judith E. Chapman, Ian G. Cox, Graham W. Biddle, Kevin Jacob DeRyke | 2001-06-12 |
| 5815239 | Contact lenses providing improved visual acuity | Judith E. Chapman, Ian G. Cox, Graham W. Biddle, Kevin Jacob DeRyke | 1998-09-29 |