Gunther Hammen

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Dormagen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of N- and O-substituted diurethanes and...
- Patent number 4,593,117
- Issue date Jun 3, 1986
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of polyisocyanates
- Patent number 4,388,246
- Issue date Jun 14, 1983
- Bayer Aktiengesellschaft
- Rudolf Sundermann
- C07 - ORGANIC CHEMISTRY