Hans Holtschmidt

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Bergisch, Gladbach, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of tetrachloropyrimidine
- Patent number 4,026,892
- Issue date May 31, 1977
- Bayer Aktiengesellschaft
- Gunther Beck
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Perchlorodiazafulvene
- Patent number 4,021,443
- Issue date May 3, 1977
- Bayer Aktiengesellschaft
- Gunther Beck
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of trichlorothiazole and intermediate
- Patent number 4,018,784
- Issue date Apr 19, 1977
- Bayer Aktiengesellschaft
- Gunther Beck
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2,5-Dichloro-thiazolo[4,5-d]thiazole and process for making same
- Patent number 3,994,913
- Issue date Nov 30, 1976
- Bayer Aktiengesellschaft
- Gunther Beck
- C07 - ORGANIC CHEMISTRY