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Per Harald Collin
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Falun, SW
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Patents Grants
last 30 patents
Information
Patent Grant
Method for simultaneous combined production of electrical energy an...
Patent number
4,094,665
Issue date
Jun 13, 1978
Stora Kopparbergs Bergslags AB
Per Harald Collin
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of reducing finely grained material containing iron oxides i...
Patent number
4,084,958
Issue date
Apr 18, 1978
Stora Kopparbergs Bergslags Aktiebolag
Per Harald Collin
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus for the melt reduction of fine-grained iron oxide material
Patent number
4,080,511
Issue date
Mar 21, 1978
ASEA Aktiebolag
Per Harald Collin
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and apparatus for the melt reduction of iron oxides
Patent number
4,079,185
Issue date
Mar 14, 1978
ASEA Aktiebolag
Per Harald Collin
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for reducing material containing iron oxides
Patent number
4,073,642
Issue date
Feb 14, 1978
Stora Kopparbergs Bergslags Aktiebolag
Per H. Collin
C21 - METALLURGY OF IRON
Information
Patent Grant
Furnace for melting solid ferrous pieces
Patent number
4,033,562
Issue date
Jul 5, 1977
Asea Aktiebolag
Per Harald Collin
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus for and process of converting carbonaceous materials cont...
Patent number
4,026,679
Issue date
May 31, 1977
Stora Kopparbergs Bergslags Aktiebolag
Per Harald Collin
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Method for simultaneous combined production of electrical energy an...
Patent number
3,985,544
Issue date
Oct 12, 1976
Stora Kopparbergs Bergslags Aktiebolag
Per Harald Collin
C21 - METALLURGY OF IRON
Information
Patent Grant
Furnace and method for reducing metal oxides to molten metal
Patent number
3,947,621
Issue date
Mar 30, 1976
Allmanna Svenska Elektriska Aktiebolaget
Per Harald Collin
C21 - METALLURGY OF IRON
Information
Patent Grant
Inductially heated gas lift pump action method for melt reduction
Patent number
3,932,173
Issue date
Jan 13, 1976
Allmanna Svenska Elektriska Aktiebolaget
Per Harald Collin
C21 - METALLURGY OF IRON