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Paul F. Richardson
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Glen Ellyn, IL, US
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last 30 patents
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Patent Grant
Sulphonate-containing terpolymers as flocculants for suspended solids
Patent number
4,704,209
Issue date
Nov 3, 1987
Nalco Chemical Company
Paul F. Richardson
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Acrylamide diallyl dimethyl ammonium chloride copolymers as improve...
Patent number
4,673,511
Issue date
Jun 16, 1987
Nalco Chemical Company
Paul F. Richardson
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE