Karl-Friedrich Christmann

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Dormagen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the isolation of 2,2-dimethyl-7-hydroxy-coumaran
- Patent number 4,647,676
- Issue date Mar 3, 1987
- Bayer Aktiengesellschaft
- Manfred Lenthe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Isolation of dihydroxybenzene-monoethers from reaction mixtures
- Patent number 4,486,611
- Issue date Dec 4, 1984
- Bayer Aktiengesellschaft
- Manfred Lenthe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of certain 2-methyl-2,3-dihydro-benzofuran-7-ols
- Patent number 4,321,204
- Issue date Mar 23, 1982
- Bayer Aktiengesellschaft
- Gerhard Buttner
- C07 - ORGANIC CHEMISTRY