Molding processes

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United States of America Patent

PATENT NO 6113817
SERIAL NO

09047041

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Abstract

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Efficient and consistent processes for manufacturing moldings, especially ophthalmic lenses such as contact lenses. The processes comprises a series of improvements, including improvements in the areas of conditions for dispensing liquid prepolymer into lens molds, male and female mold mating, reusable molds, mold cleaning, lens separation from molds (demolding), lens handling, and in-line inspection. Cyclic series of processing steps are also disclosed. Additionally, an improved molding tool is disclosed, with the molding tool including a male mold housing and a female mold housing, each of which have disposed therein a plurality of mold halves.

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Patent Owner(s)

Patent OwnerAddress
NOVARTIS AGBASEL SUI BASEL BASEL-STADT

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baur, Karl Kornwestheim, DE 12 85
Biel, Roger Frankfurt/M., DE 68 443
Golby, John Aschaffenburg, DE 9 663
Hagmann, Peter Erlenbach/M., DE 66 1729
Hauck, Roland Hohenfels, DE 5 86
Heinrich, Axel Schaafheim, DE 37 318
Herbrechtsmeier, Peter Konigstein/Ts., DE 50 1381
Kretzschmar, Otto Einhausen, DE 10 626
Lang, Anette Grossostheim, DE 2 29
Muller, Achim Aschaffenburg, DE 36 1035
Schulz, Thomas Neu-Isenburg, DE 137 1686
Seiferling, Bernhard Goldbach, DE 53 1609
Steffan, Werner Eichenbuehl, DE 7 403

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