Hans Hellbach

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Frankenthal, DE

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of nicotinamide
- Patent number 4,681,946
- Issue date Jul 21, 1987
- BASF Aktiengesellschaft
- Karl G. Baur
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of hexamethylene 1,6-diisocyanate and/or isomeric diiso...
- Patent number 4,613,466
- Issue date Sep 23, 1986
- BASF Aktiengesellschaft
- Franz Merger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Multiple-step process for the preparation of hexamethylene diisocya...
- Patent number 4,596,678
- Issue date Jun 24, 1986
- BASF Aktiengesellschaft
- Franz Merger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Multiple-step process for the preparation of 3-isocyanatomethyl-3,5...
- Patent number 4,596,679
- Issue date Jun 24, 1986
- BASF Aktiengesellschaft
- Hans Hellbach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process and apparatus for the safe supply of molecular oxygen or of...
- Patent number 4,491,674
- Issue date Jan 1, 1985
- BASF Aktiengesellschaft
- Norbert Rieber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of isocyanates by thermal cleaving of u...
- Patent number 4,482,499
- Issue date Nov 13, 1984
- BASF Aktiengesellschaft
- Franz Merger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Manufacture of alkylphenols
- Patent number 4,138,591
- Issue date Feb 6, 1979
- BASF Aktiengesellschaft
- Karl G. Baur
- C07 - ORGANIC CHEMISTRY