JH

Jean C. Hache

ED Essilor International (Compagnie Generale D'Optique): 2 patents #206 of 693Top 30%
Overall (All Time): #1,675,966 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4673265 Procedure and device for automatic refractometric measurement of the degree of ametropia of a human eye Mireille Servant 1987-06-16
4626090 Cupola-type ophthalmological apparatus the visual field and the electrophysiological examination of the human eye Jacques Charlier, Bruno Buys, Jean-Pierre Sozanski, Yves Moschetto, Pierre Francois 1986-12-02
4619505 Refractometry process and device for measuring the degree of ametropia, and especially the degree of astigmatism, of the eye Mireille Servant 1986-10-28