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Dalton R. Stafford
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Lethbridge, CA
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last 30 patents
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Patent Grant
Wastewater biological phosphorus removal process
Patent number
5,480,548
Issue date
Jan 2, 1996
CH2M Hill, Inc.
Glen T. Daigger
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE