Inventor · disambiguated record
Gerard Obrecht
Also filed as: OBRECHT GERARD
4 granted patents·213 citations·filing 1986–1991
82Inventor score
Files withESSILOR INT4
Top patents by PatentIndex Score
4 records- 0187US5172143AArtificial optical lens and method of manufacturing itESSILOR INT·Filed 1991·Granted Dec 15, 1992·65 cites·16 claims
- 0267US4854689AProgressive ophthalmic lensESSILOR INT·Filed 1986·Granted Aug 8, 1989·34 cites·5 claims
- 0361US4976534ASimultaneous vision optical lens for correcting presbyopiaESSILOR INT·Filed 1990·Granted Dec 11, 1990·92 cites·5 claims
- 0455US4796988AProgressive lensESSILOR INT·Filed 1986·Granted Jan 10, 1989·22 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →