Bjorn Widell

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Vesteras, SE

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Patents Grantslast 30 patents

Information Patent Grant
Method for making iron-chromium alloys
- Patent number 4,177,061
- Issue date Dec 4, 1979
- ASEA Aktiebolag
- Sven-Einar Stenkvist
- C21 - METALLURGY OF IRON
Information Patent Grant
Arc furnace for reducing metal oxides and method for operating such...
- Patent number 4,149,024
- Issue date Apr 10, 1979
- ASEA Aktiebolag
- Sven-Einar Stenkvist
- C21 - METALLURGY OF IRON
Information Patent Grant
Furnace and method for the melt reduction of iron oxide
- Patent number 4,146,390
- Issue date Mar 27, 1979
- ASEA Aktiebolag
- Bjorn Widell
- C21 - METALLURGY OF IRON
Information Patent Grant
DC arc furnace arc control
- Patent number 4,135,052
- Issue date Jan 16, 1979
- ASEA Aktiebolag
- Sven-Einar Stenkvist
- F27 - FURNACES KILNS OVENS RETORTS