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Patents Grantslast 30 patents

Information Patent Grant
Fin array for heat transfer assemblies and method of making same
- Patent number 6,598,669
- Issue date Jul 29, 2003
- Peerless of America
- Roger Paulman
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Heat transfer pipe with spiral internal ribs
- Patent number 6,533,030
- Issue date Mar 18, 2003
- F.W. Brokelmann Aluminiumwerk GmbH & Co. KG
- Jovan Mitrovic
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Heat exchange tubing blade assembly
- Patent number 4,275,785
- Issue date Jun 30, 1981
- Industrial Blast Coil Corporation
- Leo J. Kerivan
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Fire tube for a heating boiler
- Patent number 4,214,627
- Issue date Jul 29, 1980
- Interliz Anstalt
- Wolfgang Kunkel
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
2959402
- Patent number 2,959,402
- Issue date Nov 8, 1960
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
2772861
- Patent number 2,772,861
- Issue date Dec 4, 1956
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2752129
- Patent number 2,752,129
- Issue date Jun 26, 1956
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
2653800
- Patent number 2,653,800
- Issue date Sep 29, 1953
- H01 - BASIC ELECTRIC ELEMENTS