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Performance grade asphalt and methods
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Patent number 6,203,606
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Issue date Mar 20, 2001
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Texaco Inc.
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Bruce R. Bond
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Reconstituting lubricating oil
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Patent number 5,447,628
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Issue date Sep 5, 1995
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Texaco Inc.
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Charles W. Harrison
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Used lubricating oil reclaiming
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Patent number 5,306,419
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Issue date Apr 26, 1994
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Texaco Inc.
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Charles W. Harrison
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS