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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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Corrosion control
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Patent number 5,022,926
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Issue date Jun 11, 1991
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W. R. Grace & Co.-Conn.
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Robert P. Kreh
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Gallic acid as an oxygen scavenger
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Patent number 4,968,438
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Issue date Nov 6, 1990
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Nalco Chemical Company
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Cynthia A. Soderquist
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Polyacrylate scale inhibition
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Patent number 4,680,124
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Issue date Jul 14, 1987
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Nalco Chemical Company
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Paul R. Young
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Boiler water treating compositions
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Patent number 4,545,920
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Issue date Oct 8, 1985
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Nalco Chemical Company
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Walter F. Lorenc
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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