Siegfried Planker

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Konigstein, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of o-acyloxycarboxanilides
- Patent number 5,693,852
- Issue date Dec 2, 1997
- Hoechst Aktiengesellschaft
- Andreas Dierdorf
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of hydroxycarboxanilides
- Patent number 5,631,403
- Issue date May 20, 1997
- Hoechst AG
- Andreas Dierdorf
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of glycoloylanilides
- Patent number 5,616,799
- Issue date Apr 1, 1997
- Hoechst Aktiengesellschaft
- Siegfried Planker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 5-fluoroanthranilic alkyl esters and...
- Patent number 5,543,550
- Issue date Aug 6, 1996
- Hoechst Aktiengesellschaft
- Jochen Rapp
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 2-nitro-3-aminopyridine, and the int...
- Patent number 4,952,697
- Issue date Aug 28, 1990
- Hoechst Aktiengesellschaft
- Siegfried Planker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 2,2'-dichloro-hydrazobenzene
- Patent number 4,217,307
- Issue date Aug 12, 1980
- Hoechst Aktiengesellschaft
- Siegfried Planker
- C07 - ORGANIC CHEMISTRY