Leopold Hupfer

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Friedelsheim, DT

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Patents Grantslast 30 patents

Information Patent Grant
Manufacture of N-substituted tetrahydro-1,4-oxazines
- Patent number 4,068,077
- Issue date Jan 10, 1978
- BASF Aktiengesellschaft
- Norbert Goetz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Manufacture of hexamethylene diamine
- Patent number 3,972,938
- Issue date Aug 3, 1976
- BASF Aktiengesellschaft
- Dieter Voges
- C07 - ORGANIC CHEMISTRY