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Heat engines
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Patent number 3,938,335
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Issue date Feb 17, 1976
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Edward F. Marwick
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3844899
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Patent number 3,844,899
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Issue date Oct 29, 1974
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3827946
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Patent number 3,827,946
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Issue date Aug 6, 1974
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3691020
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Patent number 3,691,020
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Issue date Sep 12, 1972
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C07 - ORGANIC CHEMISTRY
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3677905
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Patent number 3,677,905
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Issue date Jul 18, 1972
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3649469
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Patent number 3,649,469
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Issue date Mar 14, 1972
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3607663
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Patent number 3,607,663
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Issue date Sep 21, 1971
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3514375
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Patent number 3,514,375
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Issue date May 26, 1970
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3489652
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Patent number 3,489,652
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Issue date Jan 13, 1970
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3467587
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Patent number 3,467,587
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Issue date Sep 16, 1969
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3451220
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Patent number 3,451,220
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Issue date Jun 24, 1969
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3425914
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Patent number 3,425,914
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Issue date Feb 4, 1969
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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3416318
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Patent number 3,416,318
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Issue date Dec 17, 1968
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3356591
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Patent number 3,356,591
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Issue date Dec 5, 1967
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3352107
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Patent number 3,352,107
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Issue date Nov 14, 1967
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3347753
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Patent number 3,347,753
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Issue date Oct 17, 1967
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3243359
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Patent number 3,243,359
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Issue date Mar 29, 1966
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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3215189
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Patent number 3,215,189
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Issue date Nov 2, 1965
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3213001
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Patent number 3,213,001
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Issue date Oct 19, 1965
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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3147598
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Patent number 3,147,598
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Issue date Sep 8, 1964
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3076096
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Patent number 3,076,096
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Issue date Jan 29, 1963
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3072626
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Patent number 3,072,626
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Issue date Jan 8, 1963
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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2979442
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Patent number 2,979,442
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Issue date Apr 11, 1961
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE