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Method of dispersing iron
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Patent number 5,183,574
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Issue date Feb 2, 1993
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W. R. Grace & Co.-Conn.
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Chih M. Hwa
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Method for controlling scale
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Patent number 5,093,005
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Issue date Mar 3, 1992
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W. R. Grace & Co.-Conn.
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Brian Greaves
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Scale control admixtures
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Patent number 5,049,304
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Issue date Sep 17, 1991
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W. R. Grace & Co.-Conn.
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Brian Greaves
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Treatment of aqueous systems
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Patent number 4,778,655
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Issue date Oct 18, 1988
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W. R. Grace & Co.
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Brian Greaves
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Treatment of aqueous systems
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Patent number 4,432,879
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Issue date Feb 21, 1984
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Dearborn Chemicals, Ltd.
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Brian Greaves
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE