Tom O. Niemi

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Oja, FI

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Patents Grantslast 30 patents

Information Patent Grant
Process for the recovery of cobalt from its impure, aqueous, in par...
- Patent number 4,208,380
- Issue date Jun 17, 1980
- Outokumpu Oy
- Matti J. Hamalainen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the production of extra fine cobalt powder
- Patent number 4,178,172
- Issue date Dec 11, 1979
- Outokumpu Oy
- Heikki A. Tiitinen
- B22 - CASTING POWDER METALLURGY