| Patents for F24J 3 - Other production or use of heat, not derived from combustion (4,775) |
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| 09/19/1989 | US4866939 Method and apparatus for extracting geothermal fluid |
| 07/05/1989 | EP0322489A1 Snow melting method utilizing heat retaining function of underground aquifer without sprinkling water |
| 07/05/1989 | CN1033677A Power generation plant |
| 07/05/1989 | CN1004720B Geothermal electropower station and its mode of operation |
| 06/01/1989 | WO1989004913A1 Power generation plant |
| 05/10/1989 | EP0314719A1 Binary compression heat pump with solution circuit. |
| 05/03/1989 | EP0313764A2 Energy conversion device |
| 04/05/1989 | EP0309467A1 Thermodynamic cycle. |
| 03/15/1989 | EP0306508A1 Heat accumulator with a heat storage and absorption body of low thermal conductivity. |
| 02/15/1989 | EP0303504A1 Underground chemical reactor |
| 02/15/1989 | EP0113769B1 Mutation assays involving blood cells that metabolize toxic substances |
| 02/09/1989 | WO1989001114A1 Apparatus for frictionally heating liquid |
| 01/17/1989 | US4798176 Apparatus for frictionally heating liquid |
| 12/28/1988 | EP0296645A1 Process for composting organic material and apparatus therefor |
| 12/15/1988 | DE3718437A1 Device for generating heat |
| 12/01/1988 | WO1988009468A1 Binary compression heat pump with solution circuit |
| 12/01/1988 | EP0281556A4 Heating system using a liquid heater as the source of heat. |
| 11/17/1988 | EP0122274B1 Improvements to solar collectors |
| 11/01/1988 | US4781151 Flameless heat source |
| 10/25/1988 | US4779575 Liquid friction heating apparatus |
| 10/13/1988 | DE3811399A1 Process for the aerobic fermentative hydrolysis, in particular composting, of organic substances and apparatus for carrying out this process |
| 10/11/1988 | CA1242943A1 Heating apparatus having multi-stage fans |
| 10/06/1988 | WO1988007652A1 Reservoirs for media |
| 10/06/1988 | WO1988007507A1 Process for composting organic material and device for carrying out this process |
| 09/29/1988 | DE3808773A1 Anlage zur gewinnung atmosphaerischer und terrestrischer waerme Plant for the recovery of atmospheric and terrestrial warmth |
| 09/27/1988 | US4773388 Friction heat generator suitable for automobile vehicles |
| 09/22/1988 | WO1988007161A1 Method for recovering latent heat from a heat transfer medium |
| 09/22/1988 | WO1988007160A1 Installation for the generation of an outgoing or incoming heat flow in a body of low thermal conductivity |
| 09/22/1988 | WO1988007159A1 Installation for the exploitation of atmospheric and terrestrial heat |
| 09/14/1988 | EP0281556A1 Heating system using a liquid heater as the source of heat |
| 08/17/1988 | EP0149628B1 Method and device for temperature control of liquids |
| 05/04/1988 | EP0162095B1 Method and equipment for utilization of the freezing heat of water as a source of heat of a heat pump |
| 05/03/1988 | US4741388 Underground heat exchanging apparatus |
| 04/28/1988 | DE3636041A1 Energy generation from deep-mining systems with decentral heat exchangers |
| 04/21/1988 | DE3632658A1 Heating system with a drive device |
| 04/12/1988 | US4737082 Lift valve for rotary screw compressors |
| 04/07/1988 | WO1988002461A1 Heating system using a liquid heater as the source of heat |
| 03/29/1988 | US4733635 Heat generator for automobile vehicles |
| 03/03/1988 | DE3626158A1 Obtaining energy from cooling circuits in deep mining installations |
| 03/01/1988 | CA1233330A1 Method and equipment for utilization of the freezing heat of water as a source of heat of a heat pump |
| 02/18/1988 | DE3621393A1 Obtaining energy from deep mines |
| 01/26/1988 | US4721066 Self-adjusting fail safe friction heater system |
| 01/12/1988 | US4718248 Four element refrigeration heat pump and geothermal control systems |
| 12/29/1987 | US4715429 Method and means for applying a heat exchanger in a drill hole for the purpose of heat recovery or storage |
| 12/17/1987 | WO1987007676A1 Thermodynamic cycle |
| 12/03/1987 | DE3617801A1 Method for obtaining energy from the surrounding air |
| 11/24/1987 | US4708878 Acoustic ultrasonic waves |
| 11/19/1987 | WO1987007000A1 Hydraulic friction heat generator |
| 10/07/1987 | EP0239573A1 Method of recovering ice formation energy |
| 10/07/1987 | CN86210053U Self heating device for undermine workers |
| 10/07/1987 | CN86208443U Heat-storage device by the use of latent heat of phase change |
| 09/29/1987 | US4696283 Kinetic heater |
| 09/22/1987 | US4694658 Method and equipment for utilization of the freezing heat of water as a source of heat of a heat pump |
| 09/17/1987 | DE3632543A1 System for obtaining and transmitting thermal energy |
| 09/16/1987 | EP0236640A1 Method and apparatus for extracting geothermal fluid |
| 09/15/1987 | US4693301 Method for heating a road by means of geothermally fed heating installation as well as a road-heating installation for carrying out the method |
| 09/15/1987 | US4693300 Method and apparatus for sprinklerless snow control |
| 09/01/1987 | US4690205 Arrangement for ensuring that ice will form substantially uniformly on a tubular heat exchanger placed in water |
| 08/26/1987 | EP0233811A1 Friction-heat generator, particularly for a motor vehicle |
| 08/18/1987 | US4687138 Device in or for high-pressure cleaning units for heating the water by circulation |
| 08/11/1987 | US4685443 Hydraulic friction heat generator |
| 07/22/1987 | EP0229058A1 Video holographic generation (vhg) and angled square lens refraction |
| 07/22/1987 | EP0094399B1 Solar heat absorbing device |
| 07/09/1987 | DE3600230A1 Heat recovery installation for utilising geothermal energy e.g. for heating buildings |
| 07/07/1987 | US4678400 Rotary means for use as a heat source |
| 06/19/1987 | DE3544310A1 Method and appliance for harnessing thermal energy by heat transformation |
| 05/26/1987 | CA1222172A1 Heating system or furnace |
| 05/13/1987 | CN85106919A Geothermal electropower station and its mode of operation |
| 05/12/1987 | US4664068 Heat generating unit for heating a liquid |
| 04/14/1987 | US4657076 Chemical injection tube mounting structure for geothermal well |
| 04/09/1987 | WO1987002121A1 Method of recovering ice formation energy |
| 03/24/1987 | US4651681 Heating system using a liquid heater as the source of heat |
| 03/19/1987 | DE3532542A1 Erdwaermegespeiste fahrbahn-heizungsanlage Erdwaermegespeiste roadway-heating system |
| 03/18/1987 | EP0214884A1 Heat generator for a motor vehicle |
| 03/18/1987 | CN85106574A Cascaded power plant using low and medium temperature source fluid |
| 03/10/1987 | US4648458 Process for eliminating static venting of vapor-dominated geothermal wells |
| 03/03/1987 | US4646714 Friction heat generator |
| 02/25/1987 | EP0211751A1 Heat generator for a motor vehicle |
| 02/25/1987 | CN86200521U Geothermy suction device |
| 02/24/1987 | US4644750 Heat recovery systems |
| 02/17/1987 | US4642987 Process and equipment for the utilization of geothermic energy |
| 02/04/1987 | EP0210930A1 Heat generator for a motor vehicle |
| 01/29/1987 | WO1987000716A1 Video holographic generation (vhg) and angled square lens refraction |
| 01/27/1987 | US4638642 Heat pump |
| 01/07/1987 | EP0207911A1 A method and means for applying a heat exchanger in a drill hole for the purpose of heat recovery and storage |
| 12/02/1986 | CA1214698A1 Solar collector |
| 10/14/1986 | CA1212643A1 Mutation assays involving blood cells that metabolize toxic substances |
| 09/23/1986 | US4612712 Machine for heating an article or product by vapor condensation |
| 09/10/1986 | EP0109425B1 Solar collector |
| 09/02/1986 | CA1210654A1 Hydrodynamic device |
| 08/26/1986 | CA1210288A1 Heat generating apparatus by use of a multistage rotary means |
| 08/26/1986 | CA1210287A1 Heating process and its apparatus in reducing air pressure within a chamber at a balanced level |
| 08/13/1986 | EP0190161A1 Improvements in earth heat recovery systems |
| 07/15/1986 | US4600821 Apparatus for inductively heating fluid |
| 07/02/1986 | CN85105399A Method of exploiting deep geothermal heat |
| 07/02/1986 | CN85105379A Water-steam transfer system for exploiting deep geothermal heat |
| 06/24/1986 | US4596209 Wind turbine heat generating apparatus |
| 06/24/1986 | US4596077 Heating process and its apparatus in reducing air pressure within a balanced level |
| 06/10/1986 | CA1205798A1 Arrangement for tubular heat exchangers located in a lake |
| 05/27/1986 | US4590918 Heat generating apparatus by use of multistage rotary means |