| Patents for F24F 12 - Use of energy recovery systems in air conditioning, ventilation or screening (4,852) |
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| 02/03/1999 | CN2306438Y Cooling heat exchange sanitation water heater for lithium bromide central air-conditioner |
| 02/03/1999 | CN1206811A Ice-storage air conditioning system |
| 01/27/1999 | CN2305595Y 恒温换气机 Thermostatic ventilators |
| 01/21/1999 | WO1999002922A1 Integrated heat recovery ventilator-hepa filter |
| 01/21/1999 | CA2295835A1 Integrated heat recovery ventilator-hepa filter |
| 01/20/1999 | EP0892225A2 Air conditioning apparatus and its components |
| 01/13/1999 | EP0890802A2 Exhaust and ventilation device with regenerative heat recovery |
| 01/12/1999 | US5858768 Passing effluent through bed of inert mineral granular material including biomass of autotrophic bacteria which aerobically degrade organic pollutants, sprinkling bed with aqueous liquid, recovering purified and deodorized gas |
| 01/06/1999 | CN2303205Y Cold/hot water machine of lithium bromide absorption type |
| 01/05/1999 | US5855320 Combined furnace and heat recovery system |
| 12/30/1998 | EP0886746A1 Ventilation device and window for accommodating the same |
| 12/30/1998 | EP0886745A1 Air conditioning and/or heating method and device with a high energy efficiency ratio for multiple-unit buildings |
| 12/10/1998 | WO1998019763A3 Regenerator heat exchanger having one or more adjustable performance characteristics |
| 11/18/1998 | EP0877909A1 Regenerative heat recovery unit comprising heat accumulators tiltably movable to have a valve function |
| 11/18/1998 | CN2297662Y Energy-saving domestic air conditioner with water heater |
| 11/18/1998 | CN2297661Y Electronic water-cooling air conditioner |
| 11/05/1998 | WO1998049510A1 Air treatment device, installation, and method |
| 11/05/1998 | DE19718625A1 Heat transfer component used in ventilation and air conditioning systems with heat recovery |
| 11/03/1998 | US5829513 Moulded baffle heat exchanger |
| 10/15/1998 | DE19715506A1 Method and appliance for heating large areas |
| 10/14/1998 | CN2294414Y Equipment for refrigerating and heat generating for air conditioner with storage of cold and heat |
| 10/07/1998 | CN2293762Y 冰箱热水器 Refrigerator Water Heater |
| 10/06/1998 | US5816315 System for conditioning an airstream |
| 10/01/1998 | WO1998043024A1 Air conditioning system |
| 10/01/1998 | WO1998043023A1 Method and arrangement for controlling indoor climate of a building |
| 09/24/1998 | DE19709145C1 Two part heat exchanger for electrical equipment housings |
| 09/16/1998 | EP0864068A1 Device and method for treating and producing fresh air |
| 09/16/1998 | EP0740762B1 Temperature control of ventilation air |
| 09/15/1998 | US5806582 Method and arrangement for controlling heat transfer in ventilation Apparatus or air conditioning apparatus |
| 09/09/1998 | CN1192803A Combined air exchange and air-conditioning unit |
| 09/02/1998 | EP0861403A1 Plate-type crossflow air-to-air heat exchanger having dual pass cooling |
| 08/13/1998 | DE19705206A1 Building interior ventilation system for ventilation of energy saving, enclosed buildings |
| 08/05/1998 | EP0856136A1 Ventilation system |
| 07/29/1998 | EP0855560A2 Ventilation device |
| 07/22/1998 | CN1188214A System for using air-conditioner condensed water into cooling water |
| 07/15/1998 | EP0852688A1 Device for optimising air management in a room |
| 07/09/1998 | WO1998029697A1 Method for ventilating a room |
| 07/07/1998 | US5775114 Refrigeration apparatus |
| 07/02/1998 | DE19654704A1 Raumbelüftungsverfahren Ventilation method |
| 06/17/1998 | CN2284361Y Air heating appts. |
| 06/10/1998 | EP0846923A2 Heat recovery device |
| 06/09/1998 | US5761908 For a room within a building |
| 05/27/1998 | EP0843799A1 Combined air exchange and air-conditioning unit |
| 05/27/1998 | CN2282661Y Heat-pipe energy-recovering air-conditioner |
| 05/27/1998 | CN1182861A Counter flow type heat exchanger |
| 05/20/1998 | DE19647345A1 Ventilation equipment for room in building |
| 05/20/1998 | CN1182188A Heat exchanger and method of manufacturing heat exchanging member of heat exchanger |
| 05/14/1998 | WO1998019763A2 Regenerator heat exchanger having one or more adjustable performance characteristics |
| 05/14/1998 | DE19641318A1 Regenerativer Wärmetauscher Regenerative heat exchanger |
| 05/13/1998 | CN1181802A Heating unit |
| 05/06/1998 | CN2280870Y Convective air exchanger |
| 04/22/1998 | CN2279551Y Ventilation energy recoverer |
| 04/16/1998 | WO1998015784A2 Regenerative heat exchanger |
| 04/08/1998 | CN2278174Y Air circulation indoor temp.- adjusting and ventilation device |
| 03/25/1998 | CN2277050Y Thermal insulating air interchanger for room |
| 03/18/1998 | EP0829692A2 Heat exchanger and method of manufacturing a heat exchanging member of a heat exchanger |
| 03/11/1998 | EP0828131A2 Opposed flow heat exchanger |
| 03/11/1998 | EP0828118A2 Ventilating device for the simultaneous aeration and de-aeration of spaces |
| 03/03/1998 | US5722483 Air exchange apparatus and method |
| 02/19/1998 | WO1998006982A1 Air exchange apparatus and method |
| 01/15/1998 | WO1998001711A1 Air-conditioner |
| 01/15/1998 | CA2260228A1 Air-conditioning installation |
| 01/14/1998 | EP0817944A1 Heating unit |
| 01/07/1998 | EP0816790A2 Heat transfer element,more paricularly for air conditioning plant with heat recovery |
| 01/07/1998 | EP0816770A2 Pipe insert lining to build in wall openings |
| 01/07/1998 | EP0816769A2 Air circulation operating apparatus for forced ventilation device |
| 01/02/1998 | DE19625772A1 Room ventilator with regenerative heat recovery |
| 12/17/1997 | CN2270915Y Cold and hot bidirectional scavenger fan |
| 12/17/1997 | CN2270914Y Cold or hot air dual-purpose inlet |
| 12/03/1997 | CN1166590A Air conditioning hot wate rshower bath |
| 11/19/1997 | EP0807791A2 Ventilation system for the rooms of a building |
| 11/13/1997 | DE19618154A1 Air-conditioning and ventilation system for rooms in low temperature house |
| 10/23/1997 | DE19614913A1 House-ventilation system with heat-recovery by heat-pump |
| 10/15/1997 | EP0800641A1 Plate heat exchanger with wetting device |
| 10/01/1997 | CN2263768Y Energy storage air conditioner |
| 09/25/1997 | WO1997035152A1 Ventilation device and window for accommodating the same |
| 09/24/1997 | CN2263306Y Energy-saving heat exchanger for air interchanger |
| 09/18/1997 | WO1997034112A1 Air conditioning and/or heating method and device with a high energy efficiency ratio for multiple-unit buildings |
| 09/10/1997 | CN2262208Y High efficiency energy saving cold and hot water equipment |
| 08/26/1997 | US5660228 Modular air-to-air heat exchanger |
| 08/07/1997 | WO1997028412A1 Regenerative heat recovery unit comprising heat accumulators tiltably movable to have a valve function |
| 08/06/1997 | EP0787953A2 Air-conditioner with energy recovery |
| 07/23/1997 | EP0785399A2 Air-air heat exchanger |
| 07/22/1997 | US5649428 Hybrid air-conditioning system with improved recovery evaporator and subcool condenser coils |
| 07/16/1997 | EP0783655A1 Heating, cooling and ventilating system, and room atmosphere conditioning unit for such a system |
| 07/02/1997 | CN2257367Y Full heat recovery air interchanger |
| 06/18/1997 | CN2256516Y Axial flow air exchanger |
| 06/12/1997 | WO1997021059A1 Device and method for treating and producing fresh air |
| 06/12/1997 | DE19545869A1 Heating system for multistorey building |
| 06/11/1997 | CN2256078Y Pipes for separate refrigerating and air-conditioning apparatus |
| 06/04/1997 | EP0777094A2 Heat exchanging element |
| 06/04/1997 | CN2255585Y Water heater using air-conditioner as heat source |
| 05/30/1997 | CA2190793A1 Heat exchanging element |
| 05/27/1997 | US5632334 For transferring heat between first and second airflows |
| 05/04/1997 | CA2162098A1 Rotating energy recovery ventilator |
| 05/01/1997 | WO1997015794A1 Method and arrangement for conveying heat from exhaust air into inlet air by a heat exchanger via which non-freezing heat transfer liquid is circulated |
| 05/01/1997 | WO1997015793A1 Ventilation system |
| 05/01/1997 | WO1997015790A1 Ventilation system |
| 04/30/1997 | DE19539811A1 Ventilation equipment with fan and heat-exchanger |
| 04/23/1997 | CN2252955Y Domestic multi-room air conditioner |