Hermann Hilbrans

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Langenfeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for the reducing treatment of molten metals an...
- Patent number 4,639,269
- Issue date Jan 27, 1987
- Klockner-Humboldt-Deutz Aktiengesellschaft
- Hermann Hilbrans
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for separating non-ferrous metals from ferruginous secondary...
- Patent number 4,491,470
- Issue date Jan 1, 1985
- Klockner-Humboldt Deutz AG
- Hermann Hilbrans
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for recovering zinc from a sulfidic zinc source
- Patent number 4,477,323
- Issue date Oct 16, 1984
- Klockner-Humboldt Deutz AG
- Mohammed Esna-Ashari
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for separating non-ferrous metals from iron-containing mater...
- Patent number 4,447,261
- Issue date May 8, 1984
- Klockner-Humboldt Deutz AG
- Hermann Hilbrans
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...