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Jean-Pierre Degand
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Paris, FR
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Patents Grants
last 30 patents
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Patent Grant
Organic glass ophthalmic lens having an impact-resistant primer lay...
Patent number
6,858,305
Issue date
Feb 22, 2005
Essilor International Compagnie Generale d'Optique
Jean-Pierre Degand
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Ophthalmic lens made of organic glass with an impact-resistant inte...
Patent number
6,489,028
Issue date
Dec 3, 2002
Essilor International Compagnie Generale d'Optique
Jean-Pierre Degand
G02 - OPTICS
Patents Applications
last 30 patents
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Patent Application
Organic glass ophthalmic lens having an impact-resistant primer lay...
Publication number
20020071091
Publication date
Jun 13, 2002
Jean-Pierre Degand
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL