Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6142627 | Short-corridor progressive lens | — | 2000-11-07 |
| 5726734 | Hard/soft superposition progressive lens design | — | 1998-03-10 |
| 5235357 | Spectacle lenses having an inside-out conicoidal front surface and method for forming same | Richard B. Whitney | 1993-08-10 |
| 5123725 | Progressive addition spectacle lens | — | 1992-06-23 |
| 5100232 | Apparatus and method for detecting hidden marks on progressive aspheric ophthalmic lenses | Luther Smith | 1992-03-31 |
| 4942696 | Blocking shim and method for prescription-laboratory processing of aspheric progressive-addition lenses | Alexander F. Menyhart, James Duszlak | 1990-07-24 |
| 4861153 | Progressive addition spectacle lens | — | 1989-08-29 |
| 4514061 | Progressive power ophthalmic lenses | — | 1985-04-30 |