Heribert Seyffert

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Essen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for the synthesis of polymers, which have polyurethane and/o...
- Patent number 5,418,311
- Issue date May 23, 1995
- Th. Goldschmidt AG
- Werner Schafer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparation for the water-repellant impregnation of porous, mineral...
- Patent number 5,196,054
- Issue date Mar 23, 1993
- Th. Goldschmidt AG
- Manfred Schmuck
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES