Walter Koch

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Muhlheim am Main, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for roasting refractory gold ores
- Patent number 5,425,799
- Issue date Jun 20, 1995
- Metallgesellschaft Aktiengesellschaft
- Walter Koch
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recovering TiO.sub.2 concentrates from TiO.sub.2 -containing substa...
- Patent number 5,186,920
- Issue date Feb 16, 1993
- Metallgesellschaft Aktiengesellschaft
- Rudolf Heng
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of processing small batteries
- Patent number 4,775,107
- Issue date Oct 4, 1988
- Metallgesellschaft AG
- Rudolf Heng
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of processing sodium oxalate formed during the digestion of...
- Patent number 4,663,132
- Issue date May 5, 1987
- Metallgesellschaft AG
- Hans-Werner Schmidt
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of processing sodium oxalate formed during the digestion of...
- Patent number 4,643,885
- Issue date Feb 17, 1987
- Metallgesellschaft AG
- Hans-Werner Schmidt
- C01 - INORGANIC CHEMISTRY