Michael Zolffel

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Marl, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of esters
- Patent number 5,177,229
- Issue date Jan 5, 1993
- Huls Aktiengesellschaft
- John Kahsnitz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the continuous production of alkylesters of saturated a...
- Patent number 4,502,992
- Issue date Mar 5, 1985
- Chemische Werke H/u/ ls AG
- Peter Hofmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Separating the chlorination products from the reaction gases obtain...
- Patent number 4,456,778
- Issue date Jun 26, 1984
- Chemische Werke Huels Aktiengesellschaft
- Michael Zolffel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the separation of methanol from mixtures of tetrahydrof...
- Patent number 4,332,645
- Issue date Jun 1, 1982
- Chemische Werke Huls Aktiengesellschaft
- Wolfgang H. E. Muller
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing pure methyl tert.-butyl ether
- Patent number 4,219,678
- Issue date Aug 26, 1980
- Chemische Werke Huls AG
- Fritz Obenaus
- C07 - ORGANIC CHEMISTRY