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Polybetaines as asphalt emulsifiers
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Patent number 6,540,822
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Issue date Apr 1, 2003
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Akzo Nobel N.V.
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Julia Mary Wates
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Lipopolysaccharide biosurfactant
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Patent number 6,063,602
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Issue date May 16, 2000
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EniTecnologie S.p.A.
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Giulio Prosperi
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Dispersing agent
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Patent number 5,882,393
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Issue date Mar 16, 1999
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EFKA-Chemicals B.V.
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Peter Hermann Quednau
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Pitch control composition
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Patent number 5,702,644
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Issue date Dec 30, 1997
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Ashland Inc.
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Linda M. Hlivka
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Ternary surfactant mixtures
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Patent number 5,164,117
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Issue date Nov 17, 1992
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Ethyl Corporation
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Joe D. Sauer
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Polyesteramide dispersing agent
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Patent number 5,153,069
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Issue date Oct 6, 1992
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Canestri; Giuseppe
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Giuseppe Canestri
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Polyesteramide dispersing agent
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Patent number 4,999,132
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Issue date Mar 12, 1991
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Bergvik Kemi AB
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Giuseppe Canestri
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...