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Dynamic heat sink
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Patent number 5,000,254
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Issue date Mar 19, 1991
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Digital Equipment Corporation
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Edward J. Williams
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F28 - HEAT EXCHANGE IN GENERAL
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Wind generating means
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Patent number 4,497,177
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Issue date Feb 5, 1985
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Max F. Anderson
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3494415
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Patent number 3,494,415
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Issue date Feb 10, 1970
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F24 - HEATING RANGES VENTILATING
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3407871
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Patent number 3,407,871
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Issue date Oct 29, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3364988
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Patent number 3,364,988
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Issue date Jan 23, 1968
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3171476
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Patent number 3,171,476
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Issue date Mar 2, 1965
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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1783844
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Patent number 1,783,844
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Issue date Dec 2, 1930
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F28 - HEAT EXCHANGE IN GENERAL
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1290772
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Patent number 1,290,772
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Issue date Jan 7, 1919
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1139505
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Patent number 1,139,505
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Issue date May 18, 1915
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F28 - HEAT EXCHANGE IN GENERAL
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1126149
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Patent number 1,126,149
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Issue date Jan 26, 1915
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F28 - HEAT EXCHANGE IN GENERAL
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1066128
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Patent number 1,066,128
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Issue date Jul 1, 1913
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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731215
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Patent number 731,215
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Issue date Jun 16, 1903
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F28 - HEAT EXCHANGE IN GENERAL
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221840
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Patent number 221,840
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Issue date Nov 18, 1879
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F28 - HEAT EXCHANGE IN GENERAL
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203306
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Patent number 203,306
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Issue date May 7, 1878
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F28 - HEAT EXCHANGE IN GENERAL
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170482
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Patent number 170,482
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Issue date Nov 30, 1875
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F28 - HEAT EXCHANGE IN GENERAL
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113690
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Patent number 113,690
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Issue date Apr 11, 1871
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F28 - HEAT EXCHANGE IN GENERAL
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62991
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Patent number 62,991
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Issue date Mar 19, 1867
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F28 - HEAT EXCHANGE IN GENERAL