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Sewage treatment
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Patent number 4,196,074
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Issue date Apr 1, 1980
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BOC Limited
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Michael E. Garrett
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Gas separation
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Patent number 4,190,424
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Issue date Feb 26, 1980
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BOC Limited
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John W. Armond
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C01 - INORGANIC CHEMISTRY
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Treatment of liquid
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Patent number 4,163,712
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Issue date Aug 7, 1979
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BOC Limited
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Kenneth C. Smith
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Treatment of waste water
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Patent number 4,141,823
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Issue date Feb 27, 1979
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The British Oxygen Company Limited
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Kenneth C. Smith
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Treatment of sewage
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Patent number 4,115,258
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Issue date Sep 19, 1978
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Kenneth Cecil Smith
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE