Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4952048 | Method of designing a non-progressive multifocal ophthalmic lens | Michael Walach | 1990-08-28 |
| 4869588 | Non-progressive multifocal ophthamic lenses | Michael Walach | 1989-09-26 |
| 4867553 | Finished composite eyeglass lens | — | 1989-09-19 |
| 4846913 | Method for making bifocal lens | J. Edward deRojas | 1989-07-11 |
| 4645317 | Eyeglass lens modules and method | Edward deRojas | 1987-02-24 |
| 4577942 | Laminated high correction eyeglass lens | Edward de Rojas | 1986-03-25 |
| 4573776 | Biconvex aphakic prosthetic lens | Edward deRojas | 1986-03-04 |
| 4185897 | Prosthetic aspheric spectacle lens for aphakia | — | 1980-01-29 |