| Patents for F22B 7 - Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body (352) |
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| 02/05/2009 | CA2693346A1 Integral waterwall external heat exchangers |
| 01/28/2009 | CN100455884C Portable high pressure steam generator with gas heater for vehicle |
| 01/14/2009 | CN101344307A Concealed boiler |
| 12/02/2008 | US7458341 Water heater with convoluted flue tube |
| 11/19/2008 | CN101310146A Steam generator |
| 11/13/2008 | US20080277097 Hot-Water Supply System Having Dual Pipe |
| 10/22/2008 | CN201137916Y Repeated heating and quick boiling soy-bean milk boiler hearth |
| 09/25/2008 | US20080230016 Low maintenance fluid heater and method of firing same |
| 09/13/2008 | CA2625536A1 Wood fired boiler |
| 09/03/2008 | CN101255984A Rapid evaporator facilitating to clean |
| 07/24/2008 | US20080173261 Reducing heat transfer surface area requirements of direct fired heaters without decreasing run length |
| 07/23/2008 | CN100404952C Process for using hot coal gas as viscous crude thermal recovery and gas injection boiler fuel |
| 07/10/2008 | WO2008057303A3 Fired heater |
| 07/09/2008 | CN101216189A Range capable of producing steam |
| 07/08/2008 | US7395785 Reducing heat transfer surface area requirements of direct fired heaters without decreasing run length |
| 05/21/2008 | CN201062802Y Multifunctional high-effective energy-saving stove |
| 05/15/2008 | WO2008057303A2 Fired heater |
| 05/01/2008 | US20080098967 Fired heater |
| 04/30/2008 | CN201053667Y Cooling device of high temperature heat furnace |
| 04/30/2008 | CN201053666Y Convection tube bundle device of high temperature heat furnace |
| 04/30/2008 | CN201053665Y High temperature heat furnace |
| 04/09/2008 | CN201045492Y Steam generator |
| 04/02/2008 | EP1904788A1 Steam generator |
| 03/26/2008 | CN101149145A Building block type heat storage and combustion total radiation boiler |
| 03/06/2008 | WO2008026960A1 Process heater mainly used for stabilising gaseousness of natural gas |
| 03/06/2008 | DE102006040833A1 Radiant synthesis gas cooler for e.g. integrated gasification combined cycle power plant, has inner flue including surface with fluid-cooled wing wall surfaces, and fluid-cooled integral gasifier contained within shell |
| 12/25/2007 | US7311064 Gas water heater damper/baffle |
| 12/19/2007 | CN101091088A Boiler furnace that avoids thermal no2 |
| 12/12/2007 | CN200989579Y Kitchen energy-saving steam generator |
| 11/28/2007 | CN200982625Y 节能蒸汽机 Saving steam engine |
| 11/21/2007 | CN200979146Y Energy-saving cascade type hot water, steam generator |
| 11/18/2007 | CA2589544A1 A partition wall structure of a furnace |
| 10/16/2007 | US7281499 Method for starting a steam generator comprising a heating gas channel that can be traversed in an approximately horizontal heating gas direction and a steam generator |
| 10/03/2007 | CN200955731Y 蒸气锅炉 Steam boilers |
| 06/13/2007 | CN1978990A Boiler plant |
| 05/31/2007 | US20070119350 Method of cooling coal fired furnace walls |
| 05/03/2007 | DE10211079B4 Kühler für heiße, staubhaltige Gase Cooler for hot, dust-laden gases |
| 04/11/2007 | CN1945114A Process for using hot coal gas as viscous crude thermal recovery and gas injection boiler fuel |
| 03/08/2007 | CA2556012A1 Looped system fuel-fired fluid heating/storage device |
| 02/07/2007 | EP1748886A2 Non-homogeneous engine component formed by powder metallurgy |
| 02/07/2007 | CN1908511A Portable high pressure steam generator with gas heater for vehicle |
| 01/25/2007 | WO2007009176A1 Steam generator |
| 01/25/2007 | CA2614665A1 Steam generator |
| 11/02/2006 | US20060243224 Boiler gas flow distribution fin apparatus and method |
| 09/06/2006 | CN2812799Y Steam driving automatic barbecues |
| 09/05/2006 | US7100541 High efficiency tank type continuous flow and self cleaning water heater |
| 08/16/2006 | CN1818465A High-efficient burner |
| 08/10/2006 | WO2006058542A3 A method of heating a boiler and a heating system |
| 08/01/2006 | US7083718 Waterboiler system with solids removal apparatus |
| 07/26/2006 | CN1809379A Disease prevention and vaccination prior to thymic reactivations |
| 07/06/2006 | US20060144347 Heat exchanger suitable for a boiler, and a boiler including such a heat exchanger |
| 06/08/2006 | WO2006058542A2 A method of heating a boiler and a heating system |
| 05/18/2006 | WO2005046288B1 Waterboiler system with solids removal apparatus |
| 04/26/2006 | EP1579149A4 Method for reducing the formation of nitrogen oxides in steam generation |
| 04/20/2006 | US20060081271 Steam humidifier and method |
| 04/05/2006 | CN1756924A Method for reducing the formation of nitrogen oxides in steam generation |
| 03/23/2006 | WO2005046288A3 Waterboiler system with solids removal apparatus |
| 03/14/2006 | US7011300 Steam humidifier and method |
| 02/21/2006 | US7000572 Telescopic baffle for water heater |
| 02/01/2006 | EP1620545A2 Disease prevention and vaccination following thymic reactivation |
| 02/01/2006 | EP1620126A2 Disease prevention and vaccination prior to thymic reactivations |
| 02/01/2006 | EP1620125A2 Tolerance to graft following thymic reactivation |
| 02/01/2006 | EP1619952A2 Tolerance to graft prior to thymic regeneration |
| 12/29/2005 | WO2004094599A3 Disease prevention and vaccination following thymic reactivation |
| 12/06/2005 | US6971336 Super low NOx, high efficiency, compact firetube boiler |
| 12/01/2005 | WO2004094988A3 Tolerance to graft prior to thymic regeneration |
| 12/01/2005 | WO2004094649A3 Tolerance to graft following thymic reactivation |
| 11/24/2005 | WO2004103271A3 Disease prevention and vaccination prior to thymic reactivations |
| 10/25/2005 | US6957629 Water heater flue with improved heat transfer |
| 10/13/2005 | US20050223643 Method for reducing the formation of nitrogen oxides in steam generation |
| 10/13/2005 | DE20221393U1 Cooler for hot dust-laden gases has plate with tube inlets having two different radii of curvature connected to inner surfaces to tubes at a tangent |
| 10/06/2005 | DE10315818B4 Dampferzeuger mit reduzierter Kalkablagerung Steam generator with reduced calcification |
| 09/28/2005 | EP1579149A2 Method for reducing the formation of nitrogen oxides in steam generation |
| 05/19/2005 | WO2005046288A2 Waterboiler system with solids removal apparatus |
| 05/05/2005 | US20050092672 Waterboiler system with solids removal apparatus |
| 04/07/2005 | US20050073064 Steam humidifier and method |
| 12/23/2004 | US20040258672 Graft acceptance through manipulation of thymic regeneration |
| 12/02/2004 | WO2004103271A2 Disease prevention and vaccination prior to thymic reactivations |
| 12/02/2004 | CA2528521A1 Disease prevention and vaccination prior to thymic reactivations |
| 11/04/2004 | WO2004094988A2 Tolerance to graft prior to thymic regeneration |
| 11/04/2004 | WO2004094649A2 Tolerance to graft following thymic reactivation |
| 11/04/2004 | WO2004094599A2 Disease prevention and vaccination following thymic reactivation |
| 11/04/2004 | DE10315818A1 Steam generator includes pipes that guide hot exhaust gases to outlet such that pipes are connected to funnel via connecting section and heat exchange section |
| 11/04/2004 | CA2528503A1 Tolerance to graft prior to thymic regeneration |
| 09/23/2004 | US20040185398 Method for reducing the formation of nitrogen oxides in steam generation |
| 09/10/2004 | WO2004059208A3 Method for reducing the formation of nitrogen oxides in steam generation |
| 07/15/2004 | WO2004059208A2 Method for reducing the formation of nitrogen oxides in steam generation |
| 05/19/2004 | CN2616800Y Environmental-protection fume-free energy-saving steam boiler |
| 01/13/2004 | US6675746 Heat exchanger with internal pin elements |
| 01/07/2004 | CN1134021C Separation device for gas and water, atomic energy generating equipment and boiler device |
| 08/05/2003 | US6601405 Single-pass, direct-fired generator for an absorption chiller |
| 05/20/2003 | US6564756 Firetube boiler |
| 05/02/2003 | EP1306613A1 Furnace tubes for large capacity water kettles and manufacturing method therefor |
| 05/01/2003 | WO2003036194A1 Single-pass, direct-fired generator for an absorption chiller |
| 04/24/2003 | US20030074915 Single-pass, direct-fired generator for an absorption chiller |
| 12/05/2002 | DE10126727A1 Compact boiler has pipe arrangement in lower part, combustion chamber, flue gas discharge pipe, burner with flame, deflecting end wall, and water-cooled casing surfaces |
| 05/14/2002 | CA2342144C Gas powered pressureless steam cooker |
| 05/02/2002 | US20020050342 Heat exchanger with internal pin elements |
| 01/08/2002 | CA2159124C Vertical tubeless boiler |
| 11/22/2001 | WO2001087445A1 Steam generator for steam-operated machines and models |