Karl Aertken

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Dulmen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing 2-propyn-1-ol
- Patent number 4,967,019
- Issue date Oct 30, 1990
- Gaf-Huels Chemie GMBH
- Helmut Westernacher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of manufacturing 2-propyn-1-ol
- Patent number 4,855,516
- Issue date Aug 8, 1989
- Gaff-Huels Chemie GmbH
- Helmut Westernacher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of manufacturing propynol
- Patent number 4,847,440
- Issue date Jul 11, 1989
- Huels Aktiengesellschaft
- Helmut Westernacher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Distillation of butinediol-1,4
- Patent number 4,373,999
- Issue date Feb 15, 1983
- GAF-Huls Chemie GmbH
- Helmut Westernacher
- C07 - ORGANIC CHEMISTRY