Hans Krekeler

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Wiesbaden, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process for regenerating palladium catalysts
- Patent number 4,092,267
- Issue date May 30, 1978
- Hoechst Aktiengesellschaft
- Hans Fernholz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the manufacture of hydroquinone
- Patent number 4,024,196
- Issue date May 17, 1977
- Hoechst Aktiengesellschaft
- Hans Krekeler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of carbon tetrachloride and phosgene
- Patent number 3,931,309
- Issue date Jan 6, 1976
- Hoechst Aktiengesellschaft
- Wilhelm Riemenschneider
- C07 - ORGANIC CHEMISTRY