| Patents for F23J 11 - Devices for conducting smoke or fumes, e.g. flues (1,444) |
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| 05/01/2002 | CN2489207Y Waste gas collecting basin |
| 04/17/2002 | CN2486857Y Static dust removing chimney |
| 03/20/2002 | EP1188022A1 Improved mass fuel combustion system |
| 03/06/2002 | EP1184624A1 Device for merging exhaust gasses of a gas heater and a ventilation system with or without connection to a heat recovery unit |
| 03/06/2002 | CN2480708Y Oil-removing dirt-removing flue |
| 03/06/2002 | CN2480707Y High temp. furnace smoke pipe transited from inner thermal-insulation to outer thermal-insulation |
| 03/06/2002 | CN2480706Y Anti-reverse flow valve for kitchen fume exhauster |
| 02/27/2002 | CN2478564Y Catheter hidden operating electric knife pen with exhaust-suction function |
| 02/07/2002 | WO2002009852A2 System and process for removal of pollutants from a gas stream |
| 02/07/2002 | CA2456272A1 System and process for removal of pollutants from a gas stream |
| 01/23/2002 | CN2473470Y Ball shape nozzle |
| 01/09/2002 | CN1077445C Fluid suction device |
| 12/19/2001 | CN2466531Y Energy-saving environment protection boiler flue |
| 12/18/2001 | US6331141 Fluid extraction apparatus |
| 12/12/2001 | EP1086339B1 Fossil fuel fired steam generator |
| 12/05/2001 | CN2463701Y 节能烟道 Saving flue |
| 12/04/2001 | US6324988 Device at rails for exhaust extraction devices |
| 11/28/2001 | CN1323962A Method of making ventilation flue |
| 11/20/2001 | CA2092934C Liquid heating apparatus |
| 10/31/2001 | CN2457461Y Flow guide type roof circulation cover |
| 10/17/2001 | CN2454647Y Forced and natural smoking exhausting device for combustor |
| 10/17/2001 | CN2454646Y Anticross-smoke pipeline for storied building |
| 10/10/2001 | CN2453239Y Device for conducting smoke from boiler |
| 10/03/2001 | CN2451914Y Stainless steel invaginating discharge flues |
| 09/27/2001 | DE10014255A1 Procedure where at least one or more shafts are added to necessary chimney smoke extraction shafts has in one or more shafts, pipes installed for supply of individual storeys with process water, hot water and electricity |
| 09/19/2001 | CN2449071Y Flue gas chimney |
| 09/19/2001 | CN2449070Y Closed pipe fume discharged gas range |
| 09/12/2001 | CN2447646Y Variable-pressure non-return air-exhausting flue structure |
| 09/05/2001 | CN2446394Y Car-type integration gas coil base and upward/downward moving cooker hood set |
| 08/22/2001 | CN1309754A Fossil fuel fired steam generator |
| 08/08/2001 | CN2442107Y Staged variable pressure type common gas exhaust passage |
| 07/11/2001 | CN2438936Y Environment type fumes separating purification pipe apparatus |
| 07/04/2001 | CN2437989Y Oil fume exhaust hood |
| 06/27/2001 | CN2436806Y Smokeless chimney |
| 06/27/2001 | CN2436798Y Vertical flue duct with drop dismountable check valve for kitchen and bathroom of residence building |
| 06/27/2001 | CN1300636A Filter with fire-smoke turbulance mixing and cyclone separation |
| 06/20/2001 | CN2435646Y Metal panel of fume extracting hood |
| 06/20/2001 | CN2435645Y Stepped waste heat recovery plant |
| 06/06/2001 | CN2433530Y Laminar type fog purification device smoke |
| 05/30/2001 | EP1103763A1 Chimney |
| 04/17/2001 | US6216685 Common venting of water heater and induced draft furnace |
| 03/28/2001 | EP1086339A1 Fossil fuel fired steam generator |
| 03/28/2001 | CN2425279Y Heating flue |
| 03/21/2001 | CN2424378Y Blast pressure regulation filtering tube |
| 02/28/2001 | CN2421532Y Internal flow fume exhauster |
| 02/06/2001 | US6182654 Woodstove emission controller |
| 01/31/2001 | CN2417383Y Sac type filtering net for treating smoke or the like |
| 01/03/2001 | CN2413179Y Composite bypass flue of exhaust system for use in gas-turbine electric power plant |
| 12/06/2000 | CN2409423Y Air purifying and freshening device |
| 12/06/2000 | CN2409422Y Combined jointed sleeve of exhausting pipe for kitchen and toilet |
| 11/22/2000 | CN2407247Y Exit flue |
| 11/16/2000 | DE10001607A1 Method for adapting flue gas channel to which combustion boiler of closed type is connected involves channel walls clad with plastic impermeable to flue gas |
| 11/08/2000 | EP1050688A2 Connecting element for rail sections of exhaust extraction devices |
| 09/06/2000 | CN2395205Y Flow guide unit of air exhaust casing for adjustable forced air exhaust water heater |
| 08/02/2000 | CN2390141Y Full-automatic strong air exhauster for water heater |
| 08/02/2000 | CN2390140Y Adjustable full-automatic strong air exhauster for water heater |
| 07/04/2000 | US6083098 Collective air intake and exhaust chimney |
| 06/14/2000 | CN2382956Y Water coated heat absorption chimney |
| 05/03/2000 | CN2376581Y Composite high temp. resistant flue |
| 04/13/2000 | CA2260524A1 Positive air flow ventilation system |
| 04/12/2000 | CN2373693Y Dust-removing energy-saving device for chimney |
| 04/05/2000 | CN2372570Y Energy-saving porous stovepipe |
| 03/22/2000 | CN2370289Y Automatic air exhauster |
| 03/22/2000 | CN2370288Y Semiautomatic locking mechanism for fume exhauster |
| 03/22/2000 | CN2370287Y Smoke exhauster for gas water heater |
| 03/02/2000 | DE19938324A1 Heat exchanger funnel with exhaust air utilization for supplying fireplaces with heated combustion air |
| 02/16/2000 | CN2364342Y Smoke removal device for electro-ion operation therapy apparatus |
| 02/01/2000 | US6019099 Heat removal system for fireplaces |
| 01/19/2000 | CN2359572Y Multifunction flue pipe |
| 01/11/2000 | US6012978 Device for removal of exhausts from vehicles |
| 12/16/1999 | WO1999064787A1 Fossil fuel fired steam generator |
| 12/14/1999 | US6000391 Positive air flow ventilation system |
| 11/17/1999 | CN2349447Y Energy-saving spiral flue |
| 10/28/1999 | DE19837289C1 System for connecting burners to chimney with coaxial pipe |
| 10/05/1999 | US5960787 Gas appliance combustion systems |
| 08/18/1999 | CN1226183A Fluid suction device |
| 04/21/1999 | CN2315487Y Atmospheric vertical boiler with screw chimney |
| 04/21/1999 | CN2315439Y Recovering device for waste heat of boiler |
| 03/17/1999 | CN2310959Y Exhaust gas discharging device for gas water heater |
| 03/17/1999 | CN2310935Y Positive-pressure cinder-discharging dust-removing device |
| 03/16/1999 | US5881654 Combustion apparatus for highly energetic materials |
| 02/10/1999 | EP0895817A2 Device for removal of exhaust gases from vehicles |
| 01/20/1999 | CN2304822Y Furnace with movable chimney for ash removement |
| 12/30/1998 | CN1041458C Liquid heating apparatus |
| 12/23/1998 | CN2301174Y Electric knife burning fume fast discharging device |
| 11/25/1998 | CN2298433Y Radiating flue of oven |
| 10/23/1998 | CA2234264A1 Emission control system, and methods of constructing and utilizing same |
| 10/21/1998 | CN2295123Y Air-exhausting device for gas water-heater |
| 09/23/1998 | CN2292223Y Forced smoke exhausting device for gas combustion water heater |
| 08/11/1998 | US5791980 Telescoping exhaust tube assembly |
| 08/11/1998 | US5791266 Combustion apparatus for highly energetic materials |
| 06/24/1998 | EP0849534A2 Fume discharge device for a thermal plant |
| 06/24/1998 | CN2284602Y Medical waste gas removing device |
| 06/04/1998 | WO1998023900A1 Combustion apparatus for highly energetic materials |
| 05/13/1998 | CN2281483Y Assembled magnesia plate flue |
| 04/14/1998 | US5737911 Method of operating combined plant |
| 03/26/1998 | DE19741901A1 Chimney flue of stacked lightweight components |
| 02/25/1998 | CN2275199Y Convexed window type cooking room |
| 12/24/1997 | WO1997048475A1 Fluid extraction apparatus |
| 12/17/1997 | CN2270892Y Chainless fire grate device |