Dietrich Langner

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Frankfurt am Main, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the resolution of racemates of optically active bicycli...
- Patent number 5,175,306
- Issue date Dec 29, 1992
- Hoechst Aktiengesellschaft
- Rolf Geiger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optically active bicyclic imino-alpha-carboxylic esters
- Patent number 4,822,894
- Issue date Apr 18, 1989
- Hoechst Aktiengesellschaft
- Rolf Geiger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Racemates of optically active bicyclic imino-alpha-carboxylic esters
- Patent number 4,668,796
- Issue date May 26, 1987
- Hoechst Aktiengesellschaft
- Rolf Geiger
- C07 - ORGANIC CHEMISTRY