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Method of recovering metal values from ores
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Patent number 8,038,767
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Issue date Oct 18, 2011
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Drinkard Metalox, Inc.
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William F. Drinkard, Jr.
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Nickel-laterite process
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Patent number 8,016,913
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Issue date Sep 13, 2011
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Drinkard Metalox, Inc.
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William F. Drinkard, Jr.
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Nitric acid production and recycle
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Patent number 6,264,909
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Issue date Jul 24, 2001
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Drinkard Metalox, Inc.
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William F. Drinkard
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Recycling of CdTe photovoltaic waste
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Patent number 5,997,718
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Issue date Dec 7, 1999
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Drinkard Metalox, Inc.
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Robert E. Goozner
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Separation of calcium from metal compounds
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Patent number 5,980,842
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Issue date Nov 9, 1999
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Drinkard Metalox, Inc.
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William F. Drinkard
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Metallurgical dust recycle process
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Patent number 5,912,402
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Issue date Jun 15, 1999
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Drinkard Metalox, Inc.
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William F. Drinkard
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Recycling of CdTe photovoltaic waste
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Patent number 5,897,685
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Issue date Apr 27, 1999
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Drinkard Metalox, Inc.
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Robert E. Goozner
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Recycling of CIS photovoltaic waste
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Patent number 5,779,877
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Issue date Jul 14, 1998
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Drinkard Metalox, Inc.
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William F. Drinkard
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR