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Metal value recovery
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Patent number 4,765,827
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Issue date Aug 23, 1988
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Ensci, Inc.
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Thomas J. Clough
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Sorbent for removing metals from fluids
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Patent number 4,338,288
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Issue date Jul 6, 1982
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Mobil Oil Corporation
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Louis D. Rollmann
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Sorbent for removing metals from fluids
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Patent number 4,222,897
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Issue date Sep 16, 1980
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Mobil Oil Corporation
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Louis D. Rollmann
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Recovery of metals from Atlantic sea nodules
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Patent number 4,208,379
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Issue date Jun 17, 1980
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The United States of America as represented by the Secretary of the Interior
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John E. Pahlman
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Manganese ore leaching process
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Patent number 4,150,091
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Issue date Apr 17, 1979
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Sun Ocean Ventures, Inc.
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Henry J. Peterson
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Cuprion process start-up control
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Patent number 4,107,262
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Issue date Aug 15, 1978
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Kennecott Copper Corporation
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Robert E. Lueders
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Cobalt stripping process
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Patent number 4,083,915
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Issue date Apr 11, 1978
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Kennecott Copper Corporation
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Gale L. Hubred
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Metal extraction from sea nodules
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Patent number 4,066,733
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Issue date Jan 3, 1978
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Ethyl Corporation
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Michael Dubeck
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...