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Heat exchanger
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Patent number 5,803,165
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Issue date Sep 8, 1998
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Hitachi, Ltd.
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Naoki Shikazono
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F28 - HEAT EXCHANGE IN GENERAL
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Method of making a heat exchanger
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Patent number 5,797,184
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Issue date Aug 25, 1998
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Sanden Corporation
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Hiroshi Tanaka
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Evaporator of refrigerator
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Patent number 5,784,897
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Issue date Jul 28, 1998
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Daewoo Electronics Co., Ltd.
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Jun-Chul Shin
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Evaporator tube
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Patent number 5,597,039
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Issue date Jan 28, 1997
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High Performance Tube, Inc.
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Klaus K. Rieger
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 5,586,598
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Issue date Dec 24, 1996
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Sanden Corporation
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Hiroshi Tanaka
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Heat exchange tubing blade assembly
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Patent number 4,275,785
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Issue date Jun 30, 1981
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Industrial Blast Coil Corporation
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Leo J. Kerivan
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3887004
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Patent number 3,887,004
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Issue date Jun 3, 1975
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F28 - HEAT EXCHANGE IN GENERAL
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3731738
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Patent number 3,731,738
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Issue date May 8, 1973
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F28 - HEAT EXCHANGE IN GENERAL
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3687194
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Patent number 3,687,194
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Issue date Aug 29, 1972
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3467180
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Patent number 3,467,180
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Issue date Sep 16, 1969
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3443634
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Patent number 3,443,634
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Issue date May 13, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3384168
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Patent number 3,384,168
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Issue date May 21, 1968
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F24 - HEATING RANGES VENTILATING
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3373803
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Patent number 3,373,803
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Issue date Mar 19, 1968
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3302701
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Patent number 3,302,701
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Issue date Feb 7, 1967
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F28 - HEAT EXCHANGE IN GENERAL
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3077928
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Patent number 3,077,928
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Issue date Feb 19, 1963
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...