Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5100232 | Apparatus and method for detecting hidden marks on progressive aspheric ophthalmic lenses | John T. Winthrop | 1992-03-31 |
| 4417790 | Finished ophthalmic lens comprising an optical smooth coating over a rough-surfaced base | W. Clifford Dawson, George D. Bard, Bernard L. Laurin | 1983-11-29 |