Jan Vermehren

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Hofheim am Taunus, DE

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Patents Grantslast 30 patents

Information Patent Grant
Substituted N-hydroxycinnamamides, processes for their preparation,...
- Patent number 5,424,480
- Issue date Jun 13, 1995
- Hoechst Aktiengesellschaft
- Jan Vermehren
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing substituted 2-cyanopyridines
- Patent number 5,258,520
- Issue date Nov 2, 1993
- Hoechst Aktiengesellschaft
- Wolfgang Giencke
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyrimidine derivatives compositions containing them, and their use...
- Patent number 5,164,393
- Issue date Nov 17, 1992
- Hoechst Aktiengesellschaft
- Jan Vermehren
- C07 - ORGANIC CHEMISTRY