ClassID:

142530

F03G7/04 - page 2 - CPC Classification

Classification description:

Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature

Recent Application in this class:
#301
20110187126
2011-08-04

Hot dry rock generation system

#302
20110175358
2011-07-21

ONE AND TWO-STAGE DIRECT GAS AND STEAM SCREW EXPANDER GENERATOR SYSTEM (DSG)

#303
20110174537
2011-07-21

Method and System for Forming a Non-Circular Borehole

#304
20110155393
2011-06-30

Generating power in a well

#305
20110144947
2011-06-16

Online diagnostic method and online diagnostic system for geothermal generation facility

#306
20110126539
2011-06-02

Combined geothermal and solar thermal organic rankine cycle system

#307
20110083438
2011-04-14

Systems and methods for combined thermal and compressed gas energy conversion systems

#308
20110079010
2011-04-07

SYSTEMS AND METHODS FOR COMBINED THERMAL AND COMPRESSED GAS ENERGY CONVERSION SYSTEMS

#309
20110067399
2011-03-24

GEOTHERMAL POWER SYSTEM

#310
20110062724
2011-03-17

Hybrid solar collector and geo-thermal concept

#311
20110048408
2011-03-03

Pressurized solar power system

#312
20110036774
2011-02-17

Spiral wound membrane module for forward osmotic use

#313
20100300560
2010-12-02

Water alteration structure and system having heat transfer conduit

#314
20100300095
2010-12-02

SEA SURFACE COOLING SYSTEM UTILIZING OTEC

#315
20100300094
2010-12-02

SYSTEM FOR POWER GENERATION BY MEANS OF A STEAM POWER UNIT, AND METHOD THEREFOR

#316
20100300091
2010-12-02

Geothermal power generation system and method of making power using the system

#317
20100288465
2010-11-18

Geothermal energy system and method of operation

#318
20100283255
2010-11-11

Energy harvesting roadway panel

#319
20100281900
2010-11-11

Arrangement adapted for energy transformation

#320
20100258251
2010-10-14

System integration to produce concentrated brine and electricity from geopressured-geothermal reservoirs

#321
20100243201
2010-09-30

Earth heat transfer loop apparatus

#322
20100242474
2010-09-30

Multi-heat source power plant

#323
20100223924
2010-09-09

Heat engine apparatus and method

#324
20100212321
2010-08-26

Heat exchangers and tower structure for density-driven power generation

#325
20100205960
2010-08-19

Systems and methods for combined thermal and compressed gas energy conversion systems

#326
20100199668
2010-08-12

AIR POWER GENERATOR TOWER

#327
20100192575
2010-08-05

PROCESS AND SYSTEMS

#328
20100180593
2010-07-22

System for Closed-Loop Large Scale Geothermal Energy Harvesting

#329
20100141052
2010-06-10

System for powering devices from intraluminal pressure changes

#330
20100140959
2010-06-10

Device and system for generation of power from intraluminal pressure changes

#331
20100140958
2010-06-10

Method for powering devices from intraluminal pressure changes

#332
20100140957
2010-06-10

Method for generation of power from intraluminal pressure changes

#333
20100140956
2010-06-10

Method for generation of power from intraluminal pressure changes

#334
20100139886
2010-06-10

System and method for geothermal conduit loop in-ground installation and soil penetrating head therefor

#335
20100089060
2010-04-15

HYBRID POWER FACILITIES

#336
20100077752
2010-04-01

Methods and/or systems for magnetobaric assisted generation of power from low temperature heat

#337
20100071366
2010-03-25

Methods and systems for electric power generation using geothermal field enhancements

#338
20100052326
2010-03-04

GEOTHERMAL ENERGY SYSTEM

#339
20100032207
2010-02-11

Method and System for Forming a Non-Circular Borehole

#340
20100031652
2010-02-11

Deep sea geothermal energy system

#341
20100024423
2010-02-04

Osmotic Heat Engine

#342
20100011767
2010-01-21

Steam driven turbine drive

#343
20090320475
2009-12-31

System and method of capturing geothermal heat from within a drilled well to generate electricity

#344
20090320474
2009-12-31

HEAT RECOVERY FROM GEOTHERMAL SOURCE

#345
20090320459
2009-12-31

Hydro-actuated engine

#346
20090315333
2009-12-24

PRODUCTION OF ELECTRICITY FROM LOW-TEMPERATURE ENERGY SOURCES

#347
20090250392
2009-10-08

SEMI-PERMEABLE MEMBRANE FOR USE IN OSMOSIS

#348
20090217664
2009-09-03

Submerged Geo-Ocean Thermal Energy System

#349
20090165461
2009-07-02

Energy transfer machine and method

#350
20090152872
2009-06-18

SYSTEM FOR COLLECTING ENERGY FROM THE ROTATION OF THE EARTH

#351
20090126923
2009-05-21

Closed loop energy production from geothermal reservoirs

#352
20090056328
2009-03-05

Micro generator system

#353
20090047072
2009-02-19

INSTALLATION FOR CONVEYING SUPERHEATED FLUID

#354
20090015016
2009-01-15

Deep water power generation system and apparatus

#355
20080292456
2008-11-27

Device for producing mechanical energy by means of a divergent, telescopic and auto sustained chimney

#356
20080271453
2008-11-06

Immanuel system to produce electricity through geothermal energy

#357
20080223041
2008-09-18

Geothermal canal with hydrostatic system for use in a geothermal power plant

#358
20080210634
2008-09-04

Semi-permeable membrane for use in osmosis, and method and plant for providing elevated pressure by osmosis to create power

#359
20080202119
2008-08-28

Method of combining wastewater treatment and power generation technologies

#360
20080169723
2008-07-17

Semi-permeable membrane for use in osmosis and method and plant for providing elevated pressure by osmosis to create power

#361
20080150296
2008-06-26

System and method for creating a geothermal roadway utility with alternative energy pumping system

#362
20080093125
2008-04-24

Method and System for Forming a Non-Circular Borehole

#363
20070257493
2007-11-08

Hydrocratic generator

#364
20070256840
2007-11-08

Method for operating actuator and an actuator device for use in drainage pipe used for producing oil and/or gas

#365
20070245730
2007-10-25

Structure and methods using multi-systems for electricity generation and water desalination

#366
20070209358
2007-09-13

System and method to generate environment-friendly power by tapping atmospheric cold

#367
20070199341
2007-08-30

Water sump structure

#368
20070152452
2007-07-05

Hydrocratic generator

#369
20070151244
2007-07-05

Thermodynamic power conversion cycle and methods of use

#370
20070120367
2007-05-31

Method and system for generating electricity utilizing naturally occurring gas

#371
20070119592
2007-05-31

Earth heat transfer loop apparatus

#372
20070068160
2007-03-29

Energy transfer system and associated methods

#373
20070056285
2007-03-15

Monocoque turbo-generator

#374
20060242953
2006-11-02

Method and system for exploiting natural pressure differences

#375
20060226656
2006-10-12

Hydrocratic generator

#376
20060213502
2006-09-28

method and apparatus to convert low temperature thermal energy to electricity

#377
20060196184
2006-09-07

Helical screw expander for power production from solar, geothermal, and industrial processes

#378
20060123789
2006-06-15

Dynamic heat sink engine

#379
20060112691
2006-06-01

Method of generating power from naturally occurring heat without fuels and motors using the same

#380
20060055175
2006-03-16

Hybrid thermodynamic cycle and hybrid energy system

#381
20060026962
2006-02-09

Nuclear power plant with universal Carnot cycle turbine

#382
20060012178
2006-01-19

Hydrocratic generator

#383
20060006657
2006-01-12

Hydrocratic generator

#384
20050279094
2005-12-22

Almost-perpetual ecology system

#385
20050258099
2005-11-24

Machine and method to derive energy from through diffusion and/or osmotic pressure

#386
20050219459
2005-10-06

Beautiful eye

#387
20050205260
2005-09-22

Wellbore rig with heat transfer loop apparatus

#388
20050160734
2005-07-28

Method of combining wastewater treatment and power generation technologies

#389
20050155350
2005-07-21

Geothermal power generator

#390
20050132700
2005-06-23

Converting energy from flowing fluids into electrical energy

#391
20050132699
2005-06-23

Converting pressure energy from renewable energy sources into electrical energy

#392
20050127679
2005-06-16

Hydrocratic generator

#393
20050080520
2005-04-14

Waste recovery and material handling process to replace the traditional trash transfer station and landfil by extracting reusable material and energy from joined refuse streams to include; office waste, dry waste, wet garbage and the special hazardous material handling of biological, chemical, and nuclear waste

#394
20050039449
2005-02-24

Power generating apparatus

#395
18519837
2025-04-22

Geothermal power systems and methods for subsea systems

#396
18150738
2023-05-23

Atmospheric energy recovery

#397
17894546
2025-03-04

Renewable geothermal energy harvesting systems and methods

#398
17806474
2023-04-11

Energy collection apparatus

#399
14935359
2018-02-13

Hot air electric generating systems

#400
14828812
2016-01-26

Magnetically coupled expander pump with axial flow path

#401
14715535
2015-09-29

Geothermal energy generator system

#402
14707863
2017-10-31

Thermosiphoning supercritical CO2 in geothermal energy production

#403
13898594
2017-05-16

System and method for capacitive heat to electrical energy conversion

#404
13782419
2015-08-04

Fluid pressure based power generation system

#405
13323899
2015-05-19

High efficiency OTEC service station