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Treatment of tumbler reject
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Patent number 4,131,535
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Issue date Dec 26, 1978
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Her Majesty the Queen in right of Canada, as represented by the Minister of E...
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Kenneth Porteous
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Deaerator circuit for bitumen froth
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Patent number 4,116,809
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Issue date Sep 26, 1978
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Her Majesty the Queen in right of Canada, as represented by the Minister of E...
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Thaddeus Eugene Kizior
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Purification of water for boiler
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Patent number 4,098,691
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Issue date Jul 4, 1978
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Her Majesty the Queen in right of Canada, as represented by the Minister of E...
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John Filby
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Asphalt impregnated felt building materials
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Patent number 4,079,158
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Issue date Mar 14, 1978
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Gulf Oil Canada Limited
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Gerhard J. A. Kennepohl
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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Preparation of petroleum pitch
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Patent number 4,039,423
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Issue date Aug 2, 1977
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Gulf Oil Canada Limited
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Maurice Moyle
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Petroleum pitch preparation
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Patent number 4,013,540
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Issue date Mar 22, 1977
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Gulf Oil Canada Limited
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Maurice Moyle
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Two stage separation system
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Patent number 3,935,076
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Issue date Jan 27, 1976
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Canada-Cities Service, Ltd.
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Lubomyr M. O. Cymbalisty
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL