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Fuel gas desulfurization
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Patent number 4,252,778
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Issue date Feb 24, 1981
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The United States of America as represented by the United States Department o...
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Ralph T. Yang
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Mechanochemical hydrogenation of coal
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Patent number 4,250,015
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Issue date Feb 10, 1981
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The United States of America as represented by the United States Department o...
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Ralph T. Yang
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Process for producing high-purity coal
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Patent number 4,134,737
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Issue date Jan 16, 1979
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Aluminum Company of America
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Ralph T. Yang
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...