| Patents for F22B 21 - Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically (973) |
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| 04/17/2002 | EP1015813B1 Solid fuel fired boiler plant and furnace unit and flue gas unit for use in such a boiler plant |
| 04/10/2002 | CN1344360A Fossil-fuel fired continuous-flow steam cenerator |
| 04/10/2002 | CN1082607C Steam generator and steam turbine driving unit for use gaseous propellant, esp, hydrogen |
| 04/03/2002 | CN2484477Y Monotube steam boiler with drum and level control function |
| 03/20/2002 | EP1188021A1 Fossil-fuel heated steam generator, comprising denitrification device for heating gas |
| 03/07/2002 | US20020026906 Fossil-fired steam generator |
| 03/07/2002 | US20020026905 Fossil-fuel-fired steam generator |
| 02/28/2002 | US20020024157 Gas-fired humidifier |
| 02/20/2002 | CN1336998A Fossil fuel fired steam generator |
| 02/20/2002 | CN1336997A Fossil fuel fired steam generator |
| 02/14/2002 | US20020017251 Fossil-fired continuous-flow steam generator |
| 01/09/2002 | CN2470675Y Novel boiler water-tube structure |
| 01/09/2002 | CN1330751A Fossil fuel fired continuous-flow steam generator |
| 01/08/2002 | US6336429 Drumless natural circulation boiler |
| 01/03/2002 | US20020000208 Fossil fuel-fired continuous-flow steam generator |
| 01/02/2002 | EP1166015A1 Fossil-fuel fired continuous-flow steam generator |
| 01/02/2002 | EP1166014A1 Fossil-fuel fired continuous steam generator |
| 12/26/2001 | CN2467898Y Boiler |
| 12/19/2001 | CN2466511Y Straight-flow steam boiler with steam drum |
| 12/19/2001 | CN2466510Y Miniature vertical water-tube fuel oil (gas) steam boiler |
| 12/19/2001 | CN2466509Y Vertical water-tube boiler with circular boiler body |
| 12/12/2001 | EP1086339B1 Fossil fuel fired steam generator |
| 12/05/2001 | CN2463682Y Extra-low pressure pollutionless energy-saving overheated steam boiler |
| 11/20/2001 | US6318305 Water-tube boiler |
| 11/14/2001 | EP1154206A2 A gas-fired humidifier |
| 11/10/2001 | CA2347325A1 A gas-fired humidifier |
| 10/31/2001 | CN2457446Y Steam generator heated by gas |
| 10/24/2001 | CN2456028Y Vertical composite gas boiler |
| 10/23/2001 | US6305612 Compact gas fired humidifier |
| 10/17/2001 | EP1144911A1 Fossil fuel fired steam generator |
| 10/17/2001 | EP1144910A1 Fossil fuel fired steam generator |
| 10/10/2001 | EP1141626A1 Method and apparatus in a fluidized bed reactor |
| 10/10/2001 | EP1141625A1 Fossil fuel fired continuos-flow steam generator |
| 09/13/2001 | US20010020451 Compact ultra high efficiency gas fired steam generator |
| 08/30/2001 | US20010018033 NOx removal system for boilers |
| 08/29/2001 | CN1310309A Direct flow steam boiler with steam pocket |
| 08/28/2001 | CA2335707A1 Nox removal system for boilers |
| 08/22/2001 | CN1309754A Fossil fuel fired steam generator |
| 08/15/2001 | CN1308203A Direct-flow steam boiler with steam pocket and possessing water level control function |
| 08/07/2001 | US6269782 Water-tube boiler |
| 07/31/2001 | CA2104744C Combustion method and apparatus for reducing emission concentrations of nox and co |
| 07/11/2001 | CN1302971A Uniflow steam boiler with water level control function |
| 07/05/2001 | CA2295379A1 Compact gas fired humidifier |
| 07/03/2001 | US6253715 Water-tube boiler |
| 06/26/2001 | US6250257 Method for operating a once-through steam generator and once-through steam generator for carrying out the method |
| 06/06/2001 | CN2433513Y Electric heating/gas two-purpose through-flow boiler body |
| 05/02/2001 | EP1096200A1 Wall heat exchanger for boiler furnace |
| 03/28/2001 | EP1086339A1 Fossil fuel fired steam generator |
| 02/14/2001 | CN2419482Y Double boiler with four reverse vertical pipes |
| 02/07/2001 | CN1282848A Watertube boiler |
| 01/17/2001 | EP0834039B1 Energy converter using imploding plasma vortex heating |
| 01/04/2001 | WO2001001040A1 Fossil-fuel heated steam generator, comprising denitrification device for heating gas |
| 12/27/2000 | CN1278315A Method and apparatus for viscosity reduction of clogging hydrocarbons in oil well |
| 12/21/2000 | DE19926918A1 Steam boiler has combustion chamber, heat exchangers, front and back tower, and main body |
| 11/15/2000 | CN2406154Y Steam heating apparatus |
| 11/08/2000 | CN1272606A Watertube boiler |
| 11/08/2000 | CN1272605A Watertube boiler |
| 10/31/2000 | US6138457 Combustion powered cooling system |
| 10/12/2000 | WO2000060283A1 Fossil-fuel fired continuous-flow steam generator |
| 10/12/2000 | WO2000060282A1 Fossil-fuel fired continuous steam generator |
| 10/10/2000 | US6129148 Method for viscosity reduction of clogging hydrocarbons in oil well |
| 09/28/2000 | DE19914761C1 Fossil fuel through-flow steam generator for electrical power plant has vertical evaporator pipes defined by walls of combustion chamber formed in loop at interface between combustion chamber and horizontal gas flue |
| 09/27/2000 | EP0937218B1 Method applicable to a continuous steam generator, and the steam generator needed for applying same |
| 09/12/2000 | US6116196 Water-tube boiler |
| 09/12/2000 | CA2177454C Steam generator |
| 08/24/2000 | DE19929088C1 Fossil fuel heated steam generator e.g. for power station equipment |
| 08/16/2000 | EP1027524A1 Method and apparatus for viscosity reduction of clogging hydrocarbons in oil well |
| 08/16/2000 | CN2392083Y Shell type boiler |
| 08/01/2000 | US6095096 Integrated boiler burner with balanced heat flux |
| 07/27/2000 | DE19901621A1 Fossilbeheizter Dampferzeuger Fossil heated steam generator |
| 07/27/2000 | DE19901430A1 Fossilbeheizter Dampferzeuger Fossil heated steam generator |
| 07/20/2000 | WO2000042353A1 Fossil fuel fired steam generator |
| 07/20/2000 | WO2000042352A1 Fossil fuel fired steam generator |
| 07/12/2000 | CN2387389Y Multiple tubulation arranged through-flow boiler |
| 07/06/2000 | DE19858780A1 Fossilbeheizter Durchlaufdampferzeuger Fossil heated through steam generator |
| 07/05/2000 | EP1015813A1 Solid fuel fired boiler plant and furnace unit and flue gas unit for use in such a boiler plant |
| 06/29/2000 | WO2000037851A1 Fossil fuel fired continuos-flow steam generator |
| 06/28/2000 | CN2385220Y Constant pressure vertical steam boiler |
| 06/21/2000 | CN2384107Y Cross flow steam boiler with double water level control |
| 06/07/2000 | EP0812407B1 Process and system for starting a continuous steam generator |
| 06/02/2000 | WO2000031468A1 Method and apparatus in a fluidized bed reactor |
| 05/24/2000 | CN2379703Y Vertical water-tube boiler using oil (gas) as fuel for producing steam having round section and loop container |
| 05/18/2000 | DE19851809A1 Fossil-fuel steam generator |
| 05/02/2000 | CA2024816C Upflow/downflow heated tube circulating system |
| 04/25/2000 | US6052898 Method of winding fluid heater coils |
| 04/13/2000 | DE19914760C1 Fossil-fuel through-flow steam generator for power plant |
| 04/05/2000 | CN2372554Y Low pressure steam boiler |
| 03/28/2000 | US6041743 Water-tube boiler and burner |
| 02/29/2000 | US6029614 Water-tube boiler with re-circulation means |
| 02/23/2000 | CN2365520Y Coke-firing low-sulphur non-soot discharge boiler |
| 02/02/2000 | EP0767885B1 Marine boiler |
| 01/26/2000 | CN2360721Y Vertical semi-spherical top burning steam boiler |
| 01/19/2000 | CN1241704A Chaff charcoal boiler |
| 01/12/2000 | CN2358341Y Heat collecting steam-smoke generator |
| 01/05/2000 | CN2357216Y Special boiler for refuse power station |
| 12/29/1999 | CN1240020A Working method of once-through boiler and once-through boiler using the method |
| 12/16/1999 | WO1999064787A1 Fossil fuel fired steam generator |
| 12/16/1999 | DE19825800A1 Fossil-fuel steam generator |
| 11/11/1999 | DE19912035A1 Steam generator for a turbine |
| 11/09/1999 | US5979549 Method and apparatus for viscosity reduction of clogging hydrocarbons in oil well |