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Method for direct steelmaking
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Patent number 6,214,085
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Issue date Apr 10, 2001
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Calderon Energy Company of Bowling Green, Inc.
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Albert Calderon
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C21 - METALLURGY OF IRON
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Method for producing uniform quality coke
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Patent number 6,077,399
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Issue date Jun 20, 2000
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Calderon Energy Company of Bowling Green, Inc.
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Albert Calderon
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Method for coking coal
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Patent number 5,607,556
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Issue date Mar 4, 1997
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Albert Calderon
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C21 - METALLURGY OF IRON
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Slagging gasification apparatus
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Patent number 5,136,808
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Issue date Aug 11, 1992
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Albert Calderon
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Method for gasifying coal
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Patent number 4,469,488
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Issue date Sep 4, 1984
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Albert Calderon
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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