ClassID:

142182

F03B13/08 - CPC Classification

Classification description:

Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus ; Power stations or aggregates Machine or engine aggregates in dams or the like; Conduits therefor, e.g. diffusors

Sub-classes:
Recent Application in this class:
#1
20250361848
2025-11-27

HYDRAULIC TURBINE

#2
20250257708
2025-08-14

RESERVOIR-REGULTING DIGITAL LOAD CONTROL

#3
20250257707
2025-08-14

MODULAR HYDROPOWER SYSTEMS AND METHODS WITH PUMPED STORAGE

#4
20250257538
2025-08-14

Modular Precast Hydro Dam with Powerhouse

#5
20250250959
2025-08-07

POWER AMPLIFICATION, STORAGE AND REGENERATION SYSTEM AND METHOD USING TIDES, WAVES AND/OR WIND

#6
20250246907
2025-07-31

HYDRO-POWER GENERATION FOR IRRIGATION CONTROL

#7
20250177881
2025-06-05

Heat Driven Osmosis Water and Power Generator

#8
20250144560
2025-05-08

Heat Driven Osmosis Water and Power Generator

#9
20250084820
2025-03-13

METHOD AND SYSTEM FOR OPTIMIZING OPERATING SWING OF VERTICAL SHAFT SUSPENDED HYDROGENERATOR UNIT

#10
20250027474
2025-01-23

HYBRID NUCLEAR-HYDRO POWER PLANT

#11
20240426267
2024-12-26

LOCAL POWER GENERATION FOR GAS TO LIQUID CONVERSION AND FLARE REDUCTION SYSTEMS AND METHODS

#12
20240418142
2024-12-19

COMPRESSION RECOVERY DEVICE FOR DELIVERING ELECTRICITY IN PIPELINE SYSTEMS

#13
20240352697
2024-10-24

HYDROKINETIC CHAMBER AND CHAMBER FOR GENERATING HYDROKINETIC ENERGY PERTAINING TO THE ENERGY-GENERATING MODULE OF A FLOATING HYDROELECTRIC POWER PLANT

#14
20240318623
2024-09-26

Apparatuses, Systems, and Methods for Providing Power Generation

#15
20240247633
2024-07-25

HYDRAULIC MACHINE

#16
20240235193
2024-07-11

Hydro-power generation for irrigation control

#17
20240159210
2024-05-16

RESERVOIR-REGULATING DIGITAL LOAD CONTROL

#18
20240151214
2024-05-09

Apparatuses, Systems, and Methods for Extraction and/or Storage of Energy From Moving Fluids

#19
20240142064
2024-05-02

Pipeline energy recovery system

#20
20240141807
2024-05-02

Thermoutilizer

#21
20240141607
2024-05-02

Modular closed loop pumped storage hydropower plant

#22
20240116145
2024-04-11

VARIABLE CONTROL LOGIC FOR ROTATING MACHINERY

#23
20240035433
2024-02-01

MODULAR RIM-DRIVE PUMP-TURBINE

#24
20240026854
2024-01-25

HYDROKINETIC TURBINE AND ARRAY PERFORMANCE OPTIMIZATION BY DYNAMIC TUNING

#25
20240011456
2024-01-11

Tidal stream generation apparatus

#26
20240003328
2024-01-04

Pelton hydraulic turbine and installation

#27
20230417212
2023-12-28

Hydroelectric unit, submersible hydraulic assembly comprising said hydroelectric unit and energy storage plant comprising said hydroelectric unit

#28
20230383490
2023-11-30

SLUICE GATE FOR A HYDROPOWER STATION

#29
20230358202
2023-11-09

DEVICE FOR GENERATING ELECTRIC CURRENT IN A FLUID FLOW CIRCUIT

#30
20230287859
2023-09-14

Energy recovery valve system with lateral flow valve for controlling the fluid flow in a duct

#31
20230272770
2023-08-31

VARIABLE-HEAD HYDROELECTRIC POWER PLANT

#32
20230261546
2023-08-17

WAVE ENERGY HARVESTER

#33
20230059855
2023-02-23

Lee Drive 4 Turbine

#34
20230042799
2023-02-09

UNDERGROUND HYDRAULIC SYSTEM

#35
20230008888
2023-01-12

REPLACING A STUB SHAFT BEARING FOR A HYDROELECTRIC TURBINE USING A RUNNER HUB LIFTING DEVICE

#36
20220372946
2022-11-24

Pumped storage water electric power generation facilities

#37
20220364540
2022-11-17

Multi-hydram turbine system

#38
20220333476
2022-10-20

Self-Powered Downhole Electrolysis Tool

#39
20220317709
2022-10-06

Self-powered remote control system for smart valve

#40
20220221316
2022-07-14

Fluid Monitoring Apparatus

#41
20220213860
2022-07-07

Pumped-storage hydropower generation tower employing conduit turbines installed in multiple stages

#42
20220195978
2022-06-23

Apparatuses, systems, and methods for providing power generation

#43
20220195974
2022-06-23

ENERGY GENERATION AND WATER REGULATION BY DRAINAGE INTO AQUIFERS

#44
20220170439
2022-06-02

Pumped storage water electric power generation facilities

#45
20220074381
2022-03-10

Conduit turbine for supporting conduit of water wheel rotational body, and hydroelectric generator having conduit turbines serially provided in multiple levels

#46
20220034307
2022-02-03

Apparatuses, systems, and methods for extraction and/or storage of energy from moving fluids

#47
20220034290
2022-02-03

Systems and methods for electrical power generation

#48
20210396203
2021-12-23

UNDERGROUND ENERGY PRODUCTION AND STORAGE SYSTEM

#49
20210381482
2021-12-09

Pumped storage water electric power generation facilities

#50
20210293217
2021-09-23

Pumped storage water electric power generation facility and reservoir utilizing coal combustion residuals

#51
20210293157
2021-09-23

Enhanced thermoutilizer

#52
20210257939
2021-08-19

Piezoelectric power apparatus

#53
20210203209
2021-07-01

Wave energy harvester

#54
20210148327
2021-05-20

Power generator

#55
20210062778
2021-03-04

CYCLIC HYDROPOWER SYSTEM

#56
20200400114
2020-12-24

Apparatus and method for generation of electricity utilizing pressurized hydro or turbomachinery technology

#57
20200400113
2020-12-24

SYSTEMS AND METHODS FOR HYDROELECTRIC SYSTEMS

#58
20200392687
2020-12-17

Water intake structure

#59
20200378354
2020-12-03

Apparatus and method for generation of electricity with pressurized water and air flow media

#60
20200347816
2020-11-05

Generating Electricity Using the Outfall of a Waste Water Treatment Plant

#61
20200347815
2020-11-05

Subsea energy storage

#62
20200340442
2020-10-29

A SYSTEM FOR GENERATING ELECTRICITY FROM AIR HYDROPOWER

#63
20200299154
2020-09-24

Integrated desalination-power system

#64
20200263654
2020-08-20

Hydraulic generator, spouting apparatus, and method for manufacturing hydraulic generator

#65
20200240386
2020-07-30

TOWER FOR HYDROPOWER

#66
20200217294
2020-07-09

Hydroelectric power plant having an electrical drive for actuating the inlet valve

#67
20200217291
2020-07-09

POWER GENERATION DEVICE UTILIZING SEAWATER

#68
20200191109
2020-06-18

Apparatus and method for generation of electricity with pressurized water and air flow media

#69
20200158076
2020-05-21

HYDROPOWER PLANT FOR CONTROLLING GRID FREQUENCY AND METHOD OF OPERATING SAME

#70
20200158075
2020-05-21

HYDROPOWER PLANT FOR CONTROLLING GRID FREQUENCY AND METHOD OF OPERATING SAME

#71
20200102930
2020-04-02

Kinetic fluid energy conversion system

#72
20200056576
2020-02-20

PUMPED-STORAGE HYDROELECTRICITY GENERATOR

#73
20190390644
2019-12-26

Kinetic fluid energy conversion system

#74
20190316310
2019-10-17

Modular hydropower unit

#75
20190170109
2019-06-06

PUMPED STORAGE HYDROPOWER SYSTEM

#76
20190093624
2019-03-28

Method for operation of hydropower reservoir with a 2-parameter elevation rule curve

#77
20180313321
2018-11-01

Method for predicting a characteristic resulting from the swell on a floating system for at least two future time steps

#78
20180291581
2018-10-11

Modular variable-head hydroelectric energy conversion system

#79
20180266383
2018-09-20

Power generation systems, and related methods, components and control systems

#80
20180195489
2018-07-12

Axial-flow turbine for low-head installations

#81
20180163567
2018-06-14

Multi-stage radial flow turbine

#82
20180100480
2018-04-12

PUMPED STORAGE HYDROPOWER SYSTEM

#83
20180083508
2018-03-22

Method of generating hydro electric energy in rivers and streams without dams and/or locks

#84
20180058417
2018-03-01

Fluid driven turbine apparatus

#85
20180044871
2018-02-15

Aquatic curtain device and uses thereof

#86
20180030951
2018-02-01

Systems and methods for hydroelectric systems

#87
20180030950
2018-02-01

ANTI-DROUGHT AND ANTI-FLOOD BY STILL WATER CIRCULATION GENERATION

#88
20180023540
2018-01-25

Low-head and high flow water turbine machine

#89
20180017035
2018-01-18

Hydraulic water wheel for a directional water flow

#90
20170314527
2017-11-02

Fluid system

#91
20170284360
2017-10-05

HYDROELECTRIC POWER GENERATOR SYSTEM AND METHOD

#92
20170254315
2017-09-07

Enhanced thermoutilizer

#93
20170248019
2017-08-31

HYDROELECTRIC GEAR PUMP WITH VARYING HELIX ANGLES OF GEAR TEETH

#94
20170234292
2017-08-17

Method for operation of hydropower reservoir with a 2-parameter elevation rule curve

#95
20170234288
2017-08-17

Systems and methods for hydroelectric systems

#96
20170214348
2017-07-27

Method for autonomous operation of electricity-generating device

#97
20170204738
2017-07-20

Hydroelectric power generating system

#98
20170198677
2017-07-13

HYDROELECTRIC GENERATION APPARATUS

#99
20170184069
2017-06-29

Turbine assembly

#100
20170114768
2017-04-27

Hydraulic installation and method of operating such an installation

#101
20170110995
2017-04-20

Controller for hydroelectric group

#102
20170096789
2017-04-06

Fluid directional apparatus

#103
20160356261
2016-12-08

OCEAN CURRENT POWER GENERATION SYSTEM

#104
20160333844
2016-11-17

Pumped-storage system

#105
20160248357
2016-08-25

Variable-speed operation control apparatus and hydroelectric power generation system

#106
20160237978
2016-08-18

Gear Pump for Hydroelectric Power Generation

#107
20160186714
2016-06-30

WATER POWERED ELECTRICAL GENERATOR WITH OUTLET AERATION FEATURE FOR MARINE LIFE AND INCLUDING MINIMAL WATER DROP WITH NO HEAD PRESSURE

#108
20150354527
2015-12-10

HYDRAULIC POWER GENERATION DEVICE

#109
20150354526
2015-12-10

Waste water electrical power generating system

#110
20150345461
2015-12-03

Water turbine generator

#111
20150285209
2015-10-08

Systems comprising a plurality of shafts and connecting channel

#112
20150260149
2015-09-17

METHOD FOR RETRIEVING AND USING NATURAL RESOURCES

#113
20150252793
2015-09-10

POWER GENERATION

#114
20150204301
2015-07-23

SYSTEMS AND METHODS FOR HYDROELECTRIC SYSTEMS

#115
20150167626
2015-06-18

Apparatus for converting energy from fluid flow

#116
20150151989
2015-06-04

System for purifying polluted water and purification method

#117
20150115612
2015-04-30

ROTOR FOR DYNAMO-ELECTRIC MACHINE

#118
20150107238
2015-04-23

Apparatuses, systems, and methods for extraction and/or storage of energy from moving fluids

#119
20150104292
2015-04-16

Aero-hydroelectric power station

#120
20150033722
2015-02-05

TURBINE SYSTEM FOR GENERATING POWER FROM A FLOW OF LIQUID, AND RELATED SYSTEMS AND METHODS

#121
20140312623
2014-10-23

Power generator

#122
20140298793
2014-10-09

Waste water electrical power generating system

#123
20140197640
2014-07-17

HYDROELECTRIC POWER GENERATING SYSTEM

#124
20140110942
2014-04-24

Method and System for Improved Hydropower Generation in Existing Dams and Impoundments

#125
20140102989
2014-04-17

Hydro-electric power plant comprising a grating assembly for taking water into the turbine, which is designed to discharge floating debris stopped by the grating

#126
20140008914
2014-01-09

Method and apparatus for improved hydropower generation at existing impoundments

#127
20130333370
2013-12-19

Method and apparatus for energy generation

#128
20130257057
2013-10-03

Hydro electric energy generation and storage structure

#129
20130140825
2013-06-06

Run-of river power plant

#130
20130099502
2013-04-25

Apparatus for generating power from fluid flow

#131
20130022456
2013-01-24

Axial flow action turbine

#132
20120292907
2012-11-22

Fluid energy apparatus and method

#133
20120251322
2012-10-04

Rotating fluid conduit utilized such a propeller or turbine, characterized by a rotating annulus, formed by a rotating inner hub and a rotating outer shell

#134
20120237298
2012-09-20

UNDER BOTTOM DAM WAVE ENERGY CONVERTER

#135
20120235416
2012-09-20

Shaft power plant

#136
20120201672
2012-08-09

Shaft power plant

#137
20120187692
2012-07-26

HYDROELECTRIC GENERATORS

#138
20120187690
2012-07-26

HYDROELECTRIC GENERATORS

#139
20120153623
2012-06-21

Electrical power generating system

#140
20120100004
2012-04-26

High efficiency impeller

#141
20120038173
2012-02-16

Method, system and apparatus for providing water to a heat engine via a dammed water source

#142
20120038165
2012-02-16

SYSTEM AND METHOD FOR GENERATING POWER IN A DAM

#143
20110293416
2011-12-01

HYDROPOWER PLANT

#144
20110260456
2011-10-27

Hydro unit retrofit and method of performing same

#145
20110248502
2011-10-13

Waste water electrical power generating system

#146
20110233937
2011-09-29

AQUIFER-BASED HYDROELECTRIC GENERATION

#147
20110204645
2011-08-25

Hydropower system with reciprocal floatation device

#148
20110194927
2011-08-11

Very low head packaged small hydro station

#149
20110187113
2011-08-04

HYDRO-ELECTRIC SYSTEM AND DEVICE FOR PRODUCING ENERGY

#150
20110109089
2011-05-12

Free-flow hydro-powered turbine system

#151
20110089695
2011-04-21

Method and apparatus for improved hydropower generation at existing impoundments

#152
20110049895
2011-03-03

Method and apparatus for improved hydropower system

#153
20110012351
2011-01-20

Hydropower device

#154
20100314880
2010-12-16

Waste water electrical power generating system

#155
20100289267
2010-11-18

INTEGRATED POWER SYSTEM COMBINING TIDAL POWER GENERATION AND OCEAN CURRENT POWER GENERATION

#156
20100284784
2010-11-11

Placing water turbines in water flows

#157
20100258449
2010-10-14

Self-sufficient hydrogen generator

#158
20100230970
2010-09-16

Green Energy

#159
20100133841
2010-06-03

Hydroelectric power plant

#160
20100096858
2010-04-22

Hydroelectric pumped-storage

#161
20100014920
2010-01-21

TURBINE STRUCTURE AND GATE STRUCTURE HAVING FLEXIBLE JOINT AND INSIDE STUFFING FOR TIDAL POWER PLANT

#162
20090317191
2009-12-24

FISH WAY OF TURBINE STRUCTURE AND GATE STRUCTURE FOR TIDAL POWER PLANT

#163
20090293469
2009-12-03

Hydraulic power generation system driven by compression air produced by fluid

#164
20090179427
2009-07-16

Waste water electrical power generating system

#165
20090134623
2009-05-28

Fluid energy apparatus and method

#166
20090085353
2009-04-02

Hydroelectric pumped-storage

#167
20080315591
2008-12-25

Device and System for Producing Regenerative and Renewable Hydraulic Energy

#168
20080303288
2008-12-11

Device and System for Producing Regenerative and Renewable Energy From Wind

#169
20080296900
2008-12-04

Spillway hydroelectric turbine

#170
20080217920
2008-09-11

Turbine with tube arrangement and method of preventing detachment of a fluid flow

#171
20080179888
2008-07-31

Methods and apparatus for improved hydropower system

#172
20080143116
2008-06-19

Hydroelectric generating station and method of constructing same

#173
20080031691
2008-02-07

Waste water electrical power generating system

#174
20070286715
2007-12-13

Turbine and hydroelectric power plant for very low head

#175
20070212213
2007-09-13

Process for using waste water from community sewer systems to generate electrical power

#176
20070041790
2007-02-22

Waste water electrical power generating system

#177
20050034452
2005-02-17

Enhanced pumped storage power system

#178
20050005592
2005-01-13

Hollow turbine

#179
20050002785
2005-01-06

Turbine with tube arrangement and method of preventing detachment of a fluid flow

#180
18912286
2025-05-13

Turbine-induced ICCP system for metallic pipelines

#181
18825232
2025-09-30

Hydropower plant with offshore water supply

#182
18133851
2024-07-23

Energy storage and electricity generating system and method of use

#183
16712793
2020-12-15

Scalable fluid generator array

#184
16412169
2020-07-07

Liquid-filled hydroelectric generation device

#185
15606711
2017-10-24

Hydroelectric power generating apparatus

#186
14873623
2017-10-03

Gravity driven hydro-electric systems