| Patents for F03G 4 - Devices for producing mechanical power from geothermal energy (645) |
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| 04/08/2009 | CN101405505A Thermodynamic power conversion cycle and methods of use |
| 03/19/2009 | US20090071153 Method and system for energy storage and recovery |
| 03/12/2009 | US20090065255 Method and system for installing geothermal transfer apparatuses with a sonic drill |
| 02/11/2009 | CN101363331A Method for producing power utilizing natural heat energy and prime move |
| 01/08/2009 | WO2009003236A1 An installation for conveying superheated fluid |
| 10/08/2008 | CN201129276Y Geothermal energy engine |
| 10/02/2008 | US20080236784 Pipe arrangement |
| 09/24/2008 | CN101270735A Corrosion resistant multifunctional vacuum circulated water warehouse of novel geothermic power generation plant |
| 09/10/2008 | EP1966489A2 Method of developingand producing deep geothermal reservoirs |
| 09/10/2008 | EP1966488A2 Thermodynamic power conversion cycle and methods of use |
| 09/09/2008 | US7422798 Which operates with geothermal vapours containing corrosive agents such as chlorides or sulfides, having stator blades surfaced with an alloy of 54-58% by weight nickel, 21-23% chromium; and 12-14% molybdenum |
| 09/03/2008 | EP1238234B1 Ground energy transfer system and method |
| 07/10/2008 | DE102006046461A1 Compound pipe for technical gas for generating electrical energy from heat, has both ends connected together to form circulation for energy flow |
| 06/26/2008 | US20080148732 System and Method for Creating a Geothermal Roadway Utility |
| 06/26/2008 | US20080148731 Heat engines |
| 06/19/2008 | DE102006060250A1 Verfahren und eine Vorrichtung zur Dampferzeugung in Dampfkraftwerken, bei dem kaltes Kondensat und/oder Verbrennungsluft vor der Dampferzeugung vorgewärmt wird Method and apparatus for generating steam in steam power stations, wherein the cold condensate and / or combustion air is preheated prior to the steam generation |
| 05/30/2008 | CA2569423A1 Method of generating power from naturally occurring heat without fuels and motors using the same |
| 05/22/2008 | US20080116694 Self-sustaining on-site production of electricity and/or steam for use in the in situ processing of oil shale and/or oil sands |
| 05/21/2008 | CN101182832A Heat energy and solar complementary thermal current power generation system |
| 05/08/2008 | DE10343544B4 Kraftwerksanlage zur Nutzung der Wärme eines geothermischen Reservoirs Power plant to use the heat of a geothermal reservoir |
| 04/03/2008 | DE102006043409A1 Stromerzeugung im Grundlastbereich mit geothermischer Energie Electricity baseload geothermal energy |
| 03/12/2008 | CN101139976A Method and device for electricity generation by using geothermal energy |
| 03/05/2008 | CN201031776Y Non-steam turbine geothermal energy electric generating set |
| 02/21/2008 | WO2007079245A3 Thermodynamic power conversion cycle and methods of use |
| 02/14/2008 | DE102006035764A1 Three-stage process to generate electricity from ambient power sources e.g. geothermal and solar energy |
| 02/07/2008 | WO2008014620A1 Heat recovery from geothermal source |
| 02/07/2008 | CA2651293A1 Heat recovery from geothermal source |
| 12/13/2007 | WO2007064406A3 Systems and methods for generating electricity using a thermoelectric generator and body of water |
| 11/28/2007 | CN200982278Y Geothermal energy air different temperature generation device |
| 11/22/2007 | DE102006018215A1 Verfahren und Vorrichtung zur Nutzung von SC-GeoSteam in Kombination mit SC-Wärme- und Druckwasser-Kraftwerke Method and apparatus for use of SC-GeoSteam in combination with SC heat and pressure water power plants |
| 11/14/2007 | EP1546512A4 Cascading closed loop cycle power generation |
| 09/27/2007 | US20070224037 Geothermal turbine |
| 09/27/2007 | US20070223999 Method of Developing and Producing Deep Geothermal Reservoirs |
| 08/29/2007 | CN101027480A Method of developing and producing deep geothermal reservoirs |
| 08/23/2007 | DE102007006512A1 Method for energy storage e.g., wind power or solar energy, involves supplying thermal energy from thermal reservoir to heat collector |
| 07/12/2007 | CA2634763A1 Thermodynamic power conversion cycle and methods of use |
| 07/10/2007 | CA2572840A1 Method for converting thermal energy into mechanical work |
| 07/04/2007 | EP1803898A2 Geothermal turbine |
| 06/13/2007 | CN1321297C Method and system for exchanging earth energy, especially to produce an electric current |
| 04/19/2007 | DE102005049215A1 Verfahren und Vorrichtung zur Gewinnung von mechanischer oder elektrischer Energie aus Wärme Method and apparatus for the recovery of mechanical or electrical energy from heat |
| 03/22/2007 | DE102005044714A1 Vorrichtung zur Versickerung für Regenwasser Apparatus for percolation of rain water |
| 01/24/2007 | EP1676030A4 Apparatus and method for low cost control of shape memory alloy actuators |
| 01/23/2007 | US7165943 Geothermal turbine |
| 12/28/2006 | DE10327602B4 Erdwärmesonde Geothermal probe |
| 12/07/2006 | WO2005121409A3 Method of and apparatus for producing hydrogen using geothermal enerby |
| 08/24/2006 | WO2005026539A3 Apparatus and method for low cost control of shape memory alloy actuators |
| 07/05/2006 | EP1676030A2 Apparatus and method for low cost control of shape memory alloy actuators |
| 06/13/2006 | US7059131 Method and system for exchanging earth energy between earthly bodies and an energy exchanger, especially to produce an electric current |
| 06/08/2006 | WO2006002325A3 Method of developingand producing deep geothermal reservoirs |
| 05/30/2006 | CA2220147C Multistage two-phase turbine |
| 03/09/2006 | US20060048511 Apparatus and method for low cost control of shape memory alloy actuators |
| 03/09/2006 | DE202005009635U1 Heating module for terrestrial heat pump, has defined number of absorber modules that are inserted into ground and interconnected to absorber module rows by welding, where module rows form overall heat removal surface |
| 01/19/2006 | DE102004030717A1 Process to convert and store geothermal energy and/or regenerative energy e.g. hydroelectricity by conversion into chemical energy |
| 01/05/2006 | CA2560331A1 Method of developing and producing deep geothermal reservoirs |
| 10/13/2005 | DE102004014878A1 Method for feed of geothermal energy is carried out by use of shaft on existing power station location and dug for temperature necessary for condensate preheating and steam production in power plant |
| 06/29/2005 | EP1546512A1 Cascading closed loop cycle power generation |
| 03/24/2005 | WO2005026539A2 Apparatus and method for low cost control of shape memory alloy actuators |
| 03/01/2005 | US6860718 Geothermal turbine |
| 02/03/2005 | US20050025617 Geothermal turbine |
| 10/20/2004 | EP1409870A4 Geothermal power generation |
| 09/30/2004 | DE202004007567U1 Geothermal sonde of pipe and inside tube uses roll-up corrugated pipe or plastics forming annulus with metal inner tube with enclosed temperature compensator for heat exchange technology. |
| 07/06/2004 | US6758652 Apparatus for choking the control stage of a steam turbine and steam turbine |
| 06/03/2004 | WO2004047071A1 Flute embouchure |
| 04/21/2004 | EP1409870A1 Geothermal power generation |
| 04/14/2004 | EP1327111B1 Method and system for exchanging earth energy between earthly bodies and an energy exchanger, especially to produce an electric current |
| 02/26/2004 | US20040035110 Method and system for exchanging earth energy between earthly bodies and an energy exchanger, especially to produce an electric current |
| 01/29/2004 | WO2004009965A1 Cascading closed loop cycle power generation |
| 01/29/2004 | CA2493155A1 Cascading closed loop cycle power generation |
| 01/21/2004 | CN1469983A Method and system for exchanging earth energy between earthly bodies an energy exchanger, especially to produce an electric current |
| 01/06/2004 | US6672850 Torque control oil pump with low parasitic loss and rapid pressure transient response |
| 11/27/2003 | WO2003064818A3 Geothermal steam turbine |
| 09/04/2003 | US20030165382 Geothermal turbine |
| 09/03/2003 | EP0839278B1 Multistage two-phase turbine |
| 08/07/2003 | WO2003064818A2 Geothermal steam turbine |
| 07/30/2003 | EP1331362A2 Geothermal steam turbine |
| 07/16/2003 | EP1327111A1 Method and system for exchanging earth energy between earthly bodies and an energy exchanger, especially to produce an electric current |
| 07/01/2003 | US6585047 System for heat exchange with earth loops |
| 06/26/2003 | US20030118454 Torque control oil pump with low parasitic loss and rapid pressure transient response |
| 04/01/2003 | US6539717 Geothermal steam processing |
| 02/13/2003 | CA2425480A1 Geothermal power generation |
| 02/05/2003 | CN1100933C Method and device for converting heat into useful energy using separating-closing return circuit |
| 01/08/2003 | EP1273762A1 Apparatus for controling the inlet stage of a steam turbine and steam turbine |
| 01/02/2003 | US20030002980 Apparatus for choking the control stage of a steam turbine and steam turbine |
| 10/03/2002 | WO2002077541A1 Thermal use of bore holes in the ground or in mountains and probe for using in said bore holes |
| 10/02/2002 | DE10114448A1 Verwendung von Bohrungen im Erdreich oder im Gebirge für die Wärmenutzung und Sonde zur Verwendung in den Bohrungen Use of holes in the ground or in the mountains for the use of heat and probe for use in the holes |
| 09/11/2002 | EP1238234A2 An energy transfer system and a method for providing energy transfer services |
| 09/11/2002 | CN1369037A Transport network comprising fleet of vehicles, boat and station for recharging such transport system with compressed air |
| 08/08/2002 | US20020104651 Systems for heat exchange with earth loops |
| 05/02/2002 | EP1200732A1 Transport network comprising a fleet of vehicles, boat and station for recharging such a transport system with compressed air |
| 04/25/2002 | WO2002033332A1 Method and system for exchanging earth energy between earthly bodies and an energy exchanger, especially to produce an electric current |
| 04/25/2002 | CA2424753A1 Method and system for exchanging earth energy between earthly bodies and an energy exchanger, especially for current gerneration |
| 12/27/2001 | WO2001042721A3 An energy transfer system and a method for providing energy transfer services |
| 12/25/2001 | US6332320 Geothermal steam processing |
| 11/13/2001 | US6314738 Multistage two-phase turbine |
| 11/07/2001 | CN1320770A Geo-energy electric generator with closed convection tubes |
| 09/11/2001 | US6286314 Geothermal steam processing |
| 08/22/2001 | EP1125061A1 Method and device for treating geothermal fluids |
| 08/21/2001 | US6276438 Energy systems |
| 08/02/2001 | US20010010156 Geothermal steam processing |
| 07/12/2001 | US20010007193 Geothermal steam processing |