Walter Neumann

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Konigsbronn, DE

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Patents Grantslast 30 patents

Information Patent Grant
Hydrophilic silicone rubber article and process for its preparation
- Patent number 4,920,184
- Issue date Apr 24, 1990
- Ciba-Geigy Corporation
- Horst Schafer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Modified silicone rubber and its use as a material for optical lens...
- Patent number 4,853,453
- Issue date Aug 1, 1989
- Ciba-Geigy Corporation
- Horst Schafer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...