Helmut Porkert

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Dormagen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of dimethyl polysulphides
- Patent number 4,337,359
- Issue date Jun 29, 1982
- Bayer Aktiengesellschaft
- Hermann Arold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for continuously working up solutions of the type accumulat...
- Patent number 4,195,032
- Issue date Mar 25, 1980
- Bayer Aktiengesellschaft
- Johannes Koster
- C07 - ORGANIC CHEMISTRY