Plastic castings molds

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7845615
SERIAL NO

10940343

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention is concerned with the problem that with known plastic casting moulds, especially those of polypropylene, the lenses produced with these moulds have a slippery surface. The invention solves this problem through the use of polymers which are notable for their very low oxygen permeability.

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Patent Owner(s)

  • NOVARTIS AG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hagmann, Peter Erlenbach am Main, DE 66 1672
Heinrich, Axel Schwanewede, DE 37 310
Hoerner, Willi Sulzbach, DE 4 42
Janssen, Robert Allen Alpharetta, US 44 724
Lally, John Martin Lilburn, US 50 2230
Seiferling, Bernhard Goldbach, DE 53 1556
Szokolay, Robert Earl Norcross, US 4 42

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