Gerd Fischer

Person

Limburg, DE

People

Patents Grantslast 30 patents

Information 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
Crystalline acid addition salts of diastereomerically pure 1-(2,2-d...
- Patent number 5,594,133
- Issue date Jan 14, 1997
- Hoechst Aktiengesellschaft
- Elisabeth Defossa
- 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
Crystalline acid addition salts of diastereomerically pure 1-(2,2-d...
- Patent number 5,556,850
- Issue date Sep 17, 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
Process for the cleavage of cephalosporin prodrug esters to 7-amino...
- Patent number 5,410,042
- Issue date Apr 25, 1995
- Hoechst Aktiengesellschaft
- Norbert Krass
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cephalosporin derivatives
- Patent number RE34865
- Issue date Feb 21, 1995
- Hoechst Aktiengesellschaft
- Friedhelm Adam
- 514 - Drug, bio-affecting and body treating compositions
Information Patent Grant
Cephalosporin derivatives
- Patent number 5,306,717
- Issue date Apr 26, 1994
- Hoechst Aktiengesellschaft
- Friedhelm Adam
- 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
Information Patent Grant
Cephalosporin derivatives
- Patent number 5,100,887
- Issue date Mar 31, 1992
- Hoechst Aktiengesellschaft
- Friedhelm Adam
- C07 - ORGANIC CHEMISTRY

Gerd Fischer

Person

Patents Grantslast 30 patents

Process for the preparation of cephem prodrug esters

Diastereomers of 1-(isopropoxycarbonyloxy)ethyl 3-cephem-4-carboxyl...

Crystalline acid addition salts of diastereomerically pure 1-(2,2-d...

Process for the preparation of cephem prodrug esters

Crystalline acid addition salts of diastereomerically pure 1-(2,2-d...

Diastereomers of 1-(isopropoxycarbonyloxy) ethyl 3-cephem 4-carboxy...

Diastereomers of 1-(isopropoxycarbonyloxy)ethyl 3-cephem-4-carboxylate

Process for the cleavage of cephalosporin prodrug esters to 7-amino...

Cephalosporin derivatives

Cephalosporin derivatives

Process for the preparation of penem compounds

Cephalosporin derivatives