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Thiophosphine compounds
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Patent number 7,446,228
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Issue date Nov 4, 2008
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Essilor International Compagnie Generale d'Optique
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Sirisoma Wanigatunga
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Process for making thiophosphine compounds
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Patent number 7,378,556
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Issue date May 27, 2008
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Essilor International Compagnie Generale d'Optique
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Sirisoma Wanigatunga
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Method for molding plastic lenses
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Patent number 6,416,689
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Issue date Jul 9, 2002
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Essilor International Compagnie General d'Optique
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Gabriel Keita
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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