Erhard Lange

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Marl, DE

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Patents Grantslast 30 patents

Information Patent Grant
Naphtha-soluble, hydrogenated alkyl aryl ketone/formaldehyde resins...
- Patent number 4,542,194
- Issue date Sep 17, 1985
- Chemische Werke Huels, A.G.
- Jorg Dorffel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the continuous preparation of butane-1,4-diol
- Patent number 4,268,695
- Issue date May 19, 1981
- Chemische Werke Huls Aktiengesellschaft
- Erhard Lange
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Two stage hydrogenation to make neopentyl glycol
- Patent number 4,250,337
- Issue date Feb 10, 1981
- Chemische Werke Huls Aktiengesellschaft
- Manfred zur Hausen
- C07 - ORGANIC CHEMISTRY