Jan H. Torgersen

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Skjetten, NO

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Patents Grantslast 30 patents

Information Patent Grant
Method of acid leaching of silicates
- Patent number 4,367,215
- Issue date Jan 4, 1983
- Elkem a/s
- Norvald Gjelsvik
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of precipitation of pure aluminiumchloride from solutions wh...
- Patent number 4,297,327
- Issue date Oct 27, 1981
- Elkem-Spigerverket a/s
- Norvald Gjelsvik
- C01 - INORGANIC CHEMISTRY