ClassID:

142241

F03B17/04 - CPC Classification

Classification description:

Other machines or engines using hydrostatic thrust Alleged

Recent Application in this class:
#1
20260092596
2026-04-02

COMMUNICATING FLUID VESSEL ENGINE SYSTEMS

#2
20260036109
2026-02-05

A HYDRO-DYNAMIC ELECTRIC MACHINE HAVING TANDEM WATER TOWERS FOR USE WITH A PLURALITY OF SHUTTLES TO GENERATE ELECTRICITY

#3
20250314230
2025-10-09

SYSTEM FOR GENERATING ELECTRICITY WITH TANDEM TOWERS

#4
20250314229
2025-10-09

Bicycle-Like Pressure-Differential Engine Apparatus

#5
20250137432
2025-05-01

Pressure-Differential Engine Apparatus

#6
20250092860
2025-03-20

COMMUNICATING FLUID VESSEL ENGINE SYSTEMS

#7
20250070616
2025-02-27

Systems and methods for producing clean energy

#8
20240418259
2024-12-19

HYDRAULIC PRESSURE POWER BATTERY

#9
20240392741
2024-11-28

Buoyancy engine

#10
20240360816
2024-10-31

COMMUNICATING FLUID VESSEL ENGINE SYSTEMS

#11
20240200539
2024-06-20

HYDRO-MECHANICAL ENERGY TRANSFER SYSTEM WITH DYNAMIC WATER TANKS AND TURBINE GENERATOR

#12
20240093674
2024-03-21

Communicating fluid vessel engine systems

#13
20240011458
2024-01-11

Hydrostatic pressure to kinetic energy conversion system

#14
20230417216
2023-12-28

Pressure-Differential Engine Apparatus

#15
20230374966
2023-11-23

Displacement device including force displacement mechanism with constant volume boot

#16
20230250874
2023-08-10

Hydraulic pressure power battery

#17
20230204008
2023-06-29

Displacement device including force displacement mechanism with constant volume boot

#18
20230008972
2023-01-12

APPARATUS AND A METHOD FOR BUOYANT ELEVATION OF A MASS

#19
20220412301
2022-12-29

Energy conversion device

#20
20220235734
2022-07-28

Energy generator

#21
20220213865
2022-07-07

Displacement device including force displacement mechanism with constant volume boot

#22
20220186704
2022-06-16

Power generator with multiple turbine units

#23
20220186703
2022-06-16

System and method for balancing operational systems of an electric generator

#24
20220145864
2022-05-12

Differential gravity power generator

#25
20210363960
2021-11-25

MACHINE FOR DRIVING AN ELECTRIC GENERATOR

#26
20210363957
2021-11-25

Gravitational turbine engine

#27
20210246864
2021-08-12

MACHINE FOR DRIVING AN ELECTRIC GENERATOR

#28
20210148327
2021-05-20

Power generator

#29
20210062780
2021-03-04

Power generation by continuous floatation

#30
20200217295
2020-07-09

Hydraulic device using gravity and buoyancy forces and method for operating such a device

#31
20200158077
2020-05-21

P3M3 SL

#32
20200032765
2020-01-30

Method and devices for obtaining energy from the earth's gravitational force, and device for introducing a working body into a liquid

#33
20190368463
2019-12-05

SYSTEM AND METHOD OF HARNESSING ENERGY WITH A NON-BUOYANT OBJECT AND A BUOYANT OBJECT

#34
20190360454
2019-11-28

Apparatus for generating energy

#35
20190316560
2019-10-17

Gravitational turbine engine

#36
20190249644
2019-08-15

Displacement device with force displacement mechanism

#37
20190249643
2019-08-15

DISPLACEMENT DEVICE FOR MACHINE POWERED GENERATOR

#38
20190226524
2019-07-25

Buoyancy-enhanced helical loop drive system

#39
20190186472
2019-06-20

Gravity and buoyancy engine

#40
20190128412
2019-05-02

Hydraulic pressure power battery

#41
20190101095
2019-04-04

Hydroelectric turbine system

#42
20190055916
2019-02-21

CONTROL SYSTEM FOR MACHINE ELECTRIC GENERATOR

#43
20190055915
2019-02-21

MACHINE GENERATOR WITH CYCLICAL, VERTICAL MASS TRANSPORT MECHANISM

#44
20190032629
2019-01-31

Device for automatically generating energy

#45
20180291866
2018-10-11

Buoyant force conversion device and method

#46
20180171964
2018-06-21

BUOYANT ROTATION DEVICE

#47
20180128249
2018-05-10

Transient Liquid Pressure Power Generation Systems and Associated Devices and Methods

#48
20180119668
2018-05-03

GRAVITATIONAL POWER PLANT FOR GENERATING ELECTRICITY

#49
20180066628
2018-03-08

Method and devices for obtaining energy from the earth's gravitational force, and device for introducing a working body into a liquid

#50
20180010572
2018-01-11

ROTARY AIDED CONJUNCTIVE ENERGY SYSTEM

#51
20170321651
2017-11-09

Mass levitator with energy conversion

#52
20170306920
2017-10-26

The engine operated by the buoyancy of water

#53
20170254324
2017-09-07

Gravitational inversion pump

#54
20170211540
2017-07-27

HYDRAULIC POWER GENERATION DEVICE

#55
20170130692
2017-05-11

Gravity Pneumatic Buoyant Powered Wheel Generator

#56
20170101976
2017-04-13

Buoyancy Lift Gravity Powered Electrical Generator with Circulating Vessels on Wheels and Helix Glides

#57
20170085155
2017-03-23

HIGH EFFICIENCY ENERGY PRODUCTION APPARATUS USING POTENTIAL ENERGY

#58
20170051716
2017-02-23

Wave-Driven Power Generation System

#59
20170022963
2017-01-26

Syngenergy Apparatus

#60
20160215753
2016-07-28

Mass levitator with energy conversion

#61
20160169189
2016-06-16

ENGINE FOR CONVERSION OF THERMAL ENERGY TO KINETIC ENERGY

#62
20160146180
2016-05-26

Buoyancy-driven power generation system

#63
20160146179
2016-05-26

EXTRACTION OF GRAVITATIONAL FIELD ENERGY

#64
20150226079
2015-08-13

Hydro-Electrenergy

#65
20150214862
2015-07-30

Dielectric elastomer powered boat and electricity generator and associated method

#66
20150211381
2015-07-30

SUBMERSIBLE TURBINE SYSTEM

#67
20150159798
2015-06-11

Hose guiding device

#68
20150143805
2015-05-28

POWER GENERATION/TRANSMISSION DEVICE

#69
20150130192
2015-05-14

GRAVITY BASED ENERGY CONVERSION DEVICE

#70
20150113968
2015-04-30

Transient liquid pressure power generation systems and associated devices and methods

#71
20150040556
2015-02-12

ZERO EMISSIONS POWER PLANT

#72
20150013326
2015-01-15

POWER GENERATING APPARATUS

#73
20150001855
2015-01-01

WATER COLUMN GENERATOR FOR GENERATING ELECTRICITY

#74
20140217736
2014-08-07

Wave-driven power generation system

#75
20140217734
2014-08-07

Wave-making and power-generating system

#76
20140197642
2014-07-17

GRAVITY AND BOUYANCY ENGINE DRIVEN GENERATOR

#77
20140191509
2014-07-10

Stauffer submerged electricity generator

#78
20140183865
2014-07-03

Alternative energy sourse

#79
20140175804
2014-06-26

METHOD AND APPARATUS OF GENERATING POWER FROM ATMOSPHERIC PRESSURE AND VACUUM

#80
20140079531
2014-03-20

Hydrostatic motor and method for operating a hydrostatic motor

#81
20130340433
2013-12-26

Transient liquid pressure power generation systems and associated devices and methods

#82
20130205777
2013-08-15

Low flow power plant

#83
20130175808
2013-07-11

WATER COLUMN GENERATOR FOR GENERATING ELECTRICITY

#84
20130104536
2013-05-02

Device for obtaining internal energy from liquid by utilizing buoyancy and method therefor

#85
20130089410
2013-04-11

Hydro-electric tube generation

#86
20120312008
2012-12-13

HYDRAULIC GENERATOR

#87
20120235422
2012-09-20

Energy generation device

#88
20120198833
2012-08-09

GRAVITY AND BUOYANCY ENGINE

#89
20120169066
2012-07-05

Hydro-mechanical electric power generator and method of generating electric power

#90
20120159941
2012-06-28

Jay gravi-buoyant balls

#91
20120119508
2012-05-17

Gravity and Buoyancy Electricity Generation System

#92
20120085088
2012-04-12

Gravity buoyancy generator

#93
20120060489
2012-03-15

Well Buoyancy Elevator and Conveyor Power Apparatus and Method

#94
20120047885
2012-03-01

Potential energy regenerating system and method and electricity regenerating system and method

#95
20120031090
2012-02-09

CIRCULAR MOVEMENT ELECTRICITY GENERATING MACHINE

#96
20110289913
2011-12-01

WAVE ENERGY TRANSFER SYSTEM

#97
20110278855
2011-11-17

Cyclic gravitation power generation system

#98
20110266804
2011-11-03

ANCIENT HYDROELECTRIC COMPANY

#99
20110221209
2011-09-15

Buoyancy Energy Cell

#100
20110209469
2011-09-01

System and method to recapture energy of a hydraulic motor

#101
20110162356
2011-07-07

Rotational gravity/buoyancy power generator

#102
20110146257
2011-06-23

High torque output drive system

#103
20110108362
2011-05-12

Free energy

#104
20110012369
2011-01-20

Submerged power generator

#105
20110011086
2011-01-20

Water piston engine

#106
20100307149
2010-12-09

HYDRODYNAMIC ENERGY GENERATION SYSTEM

#107
20100301611
2010-12-02

Dynamic pressure differential hydroelectric generator

#108
20100283261
2010-11-11

Buoyancy energy cell

#109
20100281857
2010-11-11

System and Method of Maintaining Pressure of a Hydraulic Motor

#110
20100270811
2010-10-28

Generating station which transforms the force of gravity into electricity

#111
20100225117
2010-09-09

Method of Generating Electricity

#112
20100223922
2010-09-09

"Closed Loop" Economy of Motion Machine

#113
20100187833
2010-07-29

Jay gravi-buoyant balls

#114
20100176597
2010-07-15

Fluid-based electrical generator

#115
20100154405
2010-06-24

Buoyancy engine using a segmented chain

#116
20100146961
2010-06-17

ENGINE USING BOUYANT ELEMENTS

#117
20100127509
2010-05-27

Gravity Engine

#118
20100126804
2010-05-27

AN ENGINE USING POTENTIAL AND BUOYANCY ENERGY WITH DE PRESSURE TRANSFER BOX

#119
20100084866
2010-04-08

System and method for a hydro-hydraulic gravitational generator

#120
20100001537
2010-01-07

DEVICE AND METHOD FOR PRODUCING ELECTRICITY

#121
20100001536
2010-01-07

METHOD AND APPARATUS FOR GENERATING MOTION OF A SERIES OF HOLLOW ELEMENTS IN A FLUID ENVIRONMENT

#122
20090309373
2009-12-17

Mechanical output work generating apparatus incorporating buoyancy inducing components

#123
20090302615
2009-12-10

Hidroflot

#124
20090284231
2009-11-19

Electric generating system with energy transfer device

#125
20090252563
2009-10-08

APPARATUS AND METHOD UTILIZING BUOYANCY

#126
20090236856
2009-09-24

Power generating apparatus

#127
20090230687
2009-09-17

Electrical generation from water power

#128
20090185484
2009-07-23

Rapid response method for the failure of links between different routing domains

#129
20090140525
2009-06-04

System and process for generating hydroelectric power

#130
20090127864
2009-05-21

Robot gravity-based electrical generator

#131
20090090104
2009-04-09

Vertical fluid container with endless chain

#132
20090084106
2009-04-02

Machine to convert gravity to mechanical energy

#133
20090084105
2009-04-02

Machine to convert gravity to mechanical energy

#134
20090021016
2009-01-22

Double gravity/buoyancy/density energy process

#135
20080264052
2008-10-30

Apparatus and associated methods to generate useable energy

#136
20080256944
2008-10-23

Adiabatic D1D3 Isochoric D3 D2 Isothermal D2 D1

#137
20080197637
2008-08-21

Process for utilization of hydrostatic energy and gravity and resulting equipment

#138
20080092535
2008-04-24

SYSTEMS AND METHODS USING GRAVITY AND BUOYANCY FOR PRODUCING ENERGY

#139
20080085158
2008-04-10

Trick Dam

#140
20080028760
2008-02-07

Philippians 419 engine - power generation

#141
20070284883
2007-12-13

Clean energy generation system

#142
20070283689
2007-12-13

Economy of motion machine

#143
20070271916
2007-11-29

Device for Producing Energy

#144
20070125079
2007-06-07

Buoyancy propulsion air and water transfer system

#145
20070096470
2007-05-03

Gravitational and air transfer electrical generation

#146
20070080540
2007-04-12

HYDRAULIC BUOYANCY KINETIC ENERGY APPARATUS

#147
20070000246
2007-01-04

Energy transfer device

#148
20060288698
2006-12-28

Torque generator

#149
20060272327
2006-12-07

Power tower

#150
20060267346
2006-11-30

Hydraulic power plant driven by gravity and buoyancy circulation

#151
20060168953
2006-08-03

Energy producing buoyancy pump

#152
20060159076
2006-07-20

Rapid response method for the failure of links between different routing domains

#153
20060130475
2006-06-22

Power generator with floats

#154
20060064975
2006-03-30

Power generating system utilizing buoyancy

#155
20060042244
2006-03-02

Sealed shaft gravity buoyancy energy system and method of use thereof

#156
20060037314
2006-02-23

Energy multiplier

#157
20050252206
2005-11-17

Buoyancy motor

#158
18654996
2025-01-28

Systems and methods for producing clean energy

#159
17129831
2025-08-12

Combined system of gravitational potential energy and modulated buoyancy

#160
15990740
2019-02-26

Buoyancy mill a machine that produces clean useful mechanical energy using buoyancy as a propellant

#161
15071838
2018-04-10

Mitigating hydraulic gradients by assisting gas displacement pumps with inverted hydrostatic standpipes

#162
13916474
2014-10-21

Buoyancy assisted motor-generator