Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033840 | Interpupillary distance measuring device with no moving parts | Christian Massart | 1991-07-23 |
| 4714330 | Device for detecting and/or measuring visual deficiencies | — | 1987-12-22 |
| 4597651 | Apparatus for the detection of eye sight defects and cassette for the operation of such an apparatus | Christine Capo-Gual, Luc Delattre | 1986-07-01 |
| 4591246 | Ocular parameter measuring device | Bernard Cousyn, Ahmed Haddadi | 1986-05-27 |
| 4391527 | Process and device for the positioning of an optical measuring instrument and a spectacle frame in relation to each other | — | 1983-07-05 |