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Oil production additive formulations
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Patent number 7,285,519
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Issue date Oct 23, 2007
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Croda International PLC
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Terence Cox
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Drilling fluids and method of drilling
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Patent number 7,122,507
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Issue date Oct 17, 2006
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Imperial Chemical Industries PLC
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Neil Grainger
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Method of oil/gas well stimulation
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Patent number 6,849,582
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Issue date Feb 1, 2005
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Imperial Chemical Industries PLC
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Neil Grainger
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Oil recovery process
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Patent number 4,199,027
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Issue date Apr 22, 1980
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Imperial Chemical Industries Limited
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Terence Cox
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...