Walter Michel

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Ilvesheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for inhibiting the formation of mineral deposits from a wat...
- Patent number 4,279,758
- Issue date Jul 21, 1981
- Joh. A. Benckiser GmbH
- Friedrich Kruger
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
N,N-Dialkylureidomethane diphosphonic acid and its preparation
- Patent number 4,255,572
- Issue date Mar 10, 1981
- Friedrich Kruger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process of producing N,N-dimethylamino methane diphosphonic acid
- Patent number 4,139,554
- Issue date Feb 13, 1979
- Joh. A. Benckiser GmbH
- Friedrich Krueger
- C07 - ORGANIC CHEMISTRY