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Rolf Horlein
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Frankfurt am Main, DE
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last 30 patents
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Patent Grant
Process for the preparation of cephem prodrug esters
Patent number
5,637,721
Issue date
Jun 10, 1997
Hoechst Aktiengesellschaft
Elisabeth Defossa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Diastereomers of 1-(isopropoxycarbonyloxy)ethyl 3-cephem-4-carboxyl...
Patent number
5,614,623
Issue date
Mar 25, 1997
Hoechst Aktiengesellschaft
Gerd Fischer
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of cephem prodrug esters
Patent number
5,589,594
Issue date
Dec 31, 1996
Hoechst Aktiengesellschaft
Elisabeth Defossa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Diastereomers of 1-(isopropoxycarbonyloxy) ethyl 3-cephem 4-carboxy...
Patent number
5,550,232
Issue date
Aug 27, 1996
Hoechst Aktiengesellschaft
Gerd Fischer
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Diastereomers of 1-(isopropoxycarbonyloxy)ethyl 3-cephem-4-carboxylate
Patent number
5,461,043
Issue date
Oct 24, 1995
Hoechst Aktiengesellschaft
Gerd Fischer
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Tetracyclic antibiotics and processes for their preparation
Patent number
5,405,844
Issue date
Apr 11, 1995
Hoechst Aktiengesellschaft
Uwe Gerlach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of penem compounds
Patent number
5,198,544
Issue date
Mar 30, 1993
Hoechst Aktiengesellschaft
Karl-Heinz Budt
C07 - ORGANIC CHEMISTRY