Gerhard Hefele

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Romerberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing shell catalysts for the catalytic vapor-phase...
- Patent number 6,528,683
- Issue date Mar 4, 2003
- BASF Aktiengesellschaft
- Thomas Heidemann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing acid phthalic anhydride and an appropriate she...
- Patent number 6,458,970
- Issue date Oct 1, 2002
- BASF Aktiengesellschaft
- Gerhard Hefele
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing phthalic anhydride by means of catalytic vapor...
- Patent number 6,362,345
- Issue date Mar 26, 2002
- BASF Aktiengesellschaft
- Thomas Heidemann
- C07 - ORGANIC CHEMISTRY