Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5106403 | Organic lens mould method with process for making a countersink | — | 1992-04-21 |
| 4992086 | Multifocal lens method | — | 1991-02-12 |
| 4906422 | Method of producing moulds for organic polymer multifocal lenses | — | 1990-03-06 |
| 4883525 | Glass-ceramic support for fusing and sagging ophthmalmic multifocal lenses | Harry L. Burke | 1989-11-28 |
| 4842632 | Method of making multifocal lens blanks | — | 1989-06-27 |