Helmut Meidert

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Frankfurt am Main, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the isolation of crystalline 1,3-cylohexanedione
- Patent number 4,487,971
- Issue date Dec 11, 1984
- Hoechst Aktiengesellschaft
- Heinz Litterer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
8-Oxo-5,6,7,8-tetrahydro-2-quinolone and process for the preparatio...
- Patent number 4,277,606
- Issue date Jul 7, 1981
- Hoechst Aktiengesellschaft
- Helmut Meidert
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
8-Chloro-5,6,7,8-tetrahydro-2-quinolone and 8-bromo-5,6,7,8-tetrahy...
- Patent number 4,226,997
- Issue date Oct 7, 1980
- Hoechst Aktiengesellschaft
- Helmut Meidert
- C07 - ORGANIC CHEMISTRY