Lothar Witzke

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Bruhl, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of basic copper carbonate
- Patent number 4,659,555
- Issue date Apr 21, 1987
- Th. Goldschmidt AG 03
- Werner Gottfried
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the manufacture of iron and aluminum-free zinc chloride...
- Patent number 4,282,190
- Issue date Aug 4, 1981
- Th. Goldschmidt AG
- Wolfgang Muller
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for treating hydroxide sludge residues containing nonferrou...
- Patent number 4,242,127
- Issue date Dec 30, 1980
- Th. Goldschmidt AG
- Wolfgang Muller
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for working up nonferrous metal hydroxide sludge waste
- Patent number 4,162,294
- Issue date Jul 24, 1979
- Th. Goldschmidt AG
- Lothar Witzke
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Liquid-liquid extraction of nickel
- Patent number 4,162,296
- Issue date Jul 24, 1979
- Th. Goldschmidt AG
- Wolfgang Muller
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Processing nonferrous metal hydroxide sludge wastes
- Patent number 4,151,257
- Issue date Apr 24, 1979
- Th. Goldschmidt AG
- Wolfgang Muller
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...