Erwin Koch

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Patents Grantslast 30 patents

Information Patent Grant
Plant to be used for metallurgical treatments of metal compounds an...
- Patent number 5,009,397
- Issue date Apr 23, 1991
- Voest-Alpine Industrieanlagenbau GmbH
- Gerhard Glockler
- C21 - METALLURGY OF IRON
Information Patent Grant
Process and device for implementing hot chemical processes
- Patent number 4,985,067
- Issue date Jan 15, 1991
- K.H.T. Know-How-Trading Patent Verwetung GmbH
- Wilhelm Stadlbauer
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of recovering copper and furnace for carrying out the method
- Patent number 4,781,755
- Issue date Nov 1, 1988
- Voest-Alpine Aktiengesellschaft
- Erwin Koch
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...