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Herbert Siegel
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Hofheim am Taunus, DE
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last 30 patents
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Patent Grant
7-diphenylmethylenebicycloheptane or 7-diphenylmethylenebicylcohept...
Patent number
5,141,937
Issue date
Aug 25, 1992
Hoechst Aktiengesellschaft
Herbert Siegel
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Radiation-sensitive compounds, radiation-sensitive mixture prepared...
Patent number
5,114,816
Issue date
May 19, 1992
Hoechst Aktiengesellschaft
Siegfried Scheler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Arylmethylazoles and their salts, agents which contain these compou...
Patent number
5,100,890
Issue date
Mar 31, 1992
Hoechst Aktiengesellschaft
Herbert Siegel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing substituted 1,2-naphthoquinone-(2)-diazide-4-...
Patent number
5,082,932
Issue date
Jan 21, 1992
Hoechst Aktiengesellschaft
Herbert Siegel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Arylmethylazole preparation processes
Patent number
5,023,357
Issue date
Jun 11, 1991
Hoechst Aktiengesellschaft
Herbert Siegel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
1-(1-aryl-2-hydroxyethyl)-imidazoles and salts thereof, medicaments...
Patent number
4,999,352
Issue date
Mar 12, 1991
Hoechst Aktiengesellschaft
Klaus-Dieter Kampe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Arylmethylazoles and their salts, processes for their preparation,...
Patent number
4,876,354
Issue date
Oct 24, 1989
Hoechst Aktiengesellschaft
Herbert Siegel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2-chloroethanephosphonyl dichloride
Patent number
4,855,087
Issue date
Aug 8, 1989
Hoechst Aktiengesellschaft
Herbert Siegel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Alkenylazoles, a process for their preparation and their use
Patent number
4,808,606
Issue date
Feb 28, 1989
Hoechst Aktiengesellschaft
Herbert Siegel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of vinylphosphonic dichloride
Patent number
4,761,251
Issue date
Aug 2, 1988
Hoechst Aktiengesellschaft
Herbert Siegel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of vinylphosphonic dichloride
Patent number
4,761,252
Issue date
Aug 2, 1988
Hoechst Aktiengesellschaft
Herbert Siegel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2-chloroethanephosphonic dichloride
Patent number
4,749,524
Issue date
Jun 7, 1988
Hoechst Aktiengesellschaft
Herbert Siegel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-bicycloheptyl-and n-bicycloheptenyl-imidazoles for affecting seru...
Patent number
4,647,575
Issue date
Mar 3, 1987
Hoechst Aktiengesellschaft
Herbert Siegel
C07 - ORGANIC CHEMISTRY