Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323194 | Perimeter with non spherical bowl | Vincent Michael Patella | 1994-06-21 |
| 5303022 | Lensometer with guided lens movement for progressive addition lens | William E. Humphrey, James E. Sheedy | 1994-04-12 |