ClassID:

142181

F03B13/06 - 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 Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump

Recent Application in this class:
#1
20260104028
2026-04-16

METHODS AND DEVICES FOR CONVERTING A COMPRESSED AIR ENERGY STORAGE (CAES) INTO A HYDROELECTRIC POWER STORAGE SYSTEM

#2
20260078732
2026-03-19

LOOPING WATER DEVICE

#3
20260071604
2026-03-12

GRADED UNDERGROUND PUMPED-STORAGE HYDROPOWER IN COAL MINE, CONSTRUCTION AND USING METHODS

#4
20260063100
2026-03-05

ENERGY STORAGE TOWER

#5
20260043385
2026-02-12

WATER-DRAWING STRUCTURE FOR OCEAN ENERGY GENERATOR

#6
20260036110
2026-02-05

Water Power Self-Circulating Generator

#7
20260028958
2026-01-29

RESERVOIR-REGULATING DIGITAL LOAD CONTROL

#8
20260015987
2026-01-15

ENERGY STORAGE WITH COMPRESSED GAS USING HYDRAULIC TRANSFORMERS

#9
20250369415
2025-12-04

PRESSURE-REGULATING HYDRODYNAMIC PUMP AND WAVE ENGINE WITH ENERGY PRODUCT GENERATION AND TRANSPORT

#10
20250361847
2025-11-27

METHODOLOGY FOR DESIGNING A TANDEM TOWER MACHINE FOR GENERATING ELECTRICITY

#11
20250341198
2025-11-06

ENERGY STORAGE TOWER

#12
20250320852
2025-10-16

SYSTEMS AND METHODS FOR MODULAR PUMPED STORAGE HYDROPOWER

#13
20250305473
2025-10-02

POWER TUNNEL

#14
20250290482
2025-09-18

Test-Bed for Pump as Turbine Transition Process Based on Digital Twinning

#15
20250290004
2025-09-18

NATURAL GAS PROCESSING WITH CO-GENERATION OF POWER

#16
20250277480
2025-09-04

SYSTEMS AND METHODS FOR HARNESSING MARINE HYDROKINETIC ENERGY

#17
20250276274
2025-09-04

CARBON DIOXIDE RECOVERY APPARATUS, CARBON DIOXIDE RECOVERY METHOD, PLANT GROWING METHOD USING CARBON DIOXIDE RECOVERY METHOD, AND PLANT GROWING MECHANISM

#18
20250257707
2025-08-14

MODULAR HYDROPOWER SYSTEMS AND METHODS WITH PUMPED STORAGE

#19
20250237310
2025-07-24

Valve Assembly

#20
20250188902
2025-06-12

PRESSURE-REGULATING HYDRODYNAMIC PUMP AND WAVE ENGINE WITH ENERGY PRODUCT GENERATION AND TRANSPORT

#21
20250188901
2025-06-12

Manufacturing Cementitious Bodies on Floating Platforms

#22
20250163882
2025-05-22

Water Wave Energy Harvester

#23
20250163881
2025-05-22

EQUALIZATION TANK ASSEMBLIES FOR WASTEWATER SYSTEMS

#24
20250129761
2025-04-24

METHOD AND DEVICE FOR STORING ENERGY

#25
20250116251
2025-04-10

SYSTEM AND METHODS FOR OCEANIC AND ATMOSPHERIC CARBON DIOXIDE AND CLIMATE MANAGEMENT, ALGAL FOSTERING, AND INITIATION AND MAINTENANCE OF FISHERIES BY DEEPER NUTRIENT RICH WATER PUMPING

#26
20250109732
2025-04-03

DEVICE AND METHOD FOR STARTING PUMPED STORAGE GROUP AND PUMPED STORAGE SYSTEM

#27
20250109731
2025-04-03

METHOD AND APPARATUS FOR IDENTIFYING S-CHARACTERISTIC OF PUMP TURBINE, AND CONTROL METHOD

#28
20250101941
2025-03-27

PRESSURE-REGULATING HYDRODYNAMIC PUMP AND WAVE ENGINE

#29
20250084819
2025-03-13

SYSTEMS AND METHODS OF POWER GENERATION WITH AQUIFER STORAGE AND RECOVERY SYSTEM

#30
20250075677
2025-03-06

POWER GENERATION FROM MOVING WATER

#31
20250027608
2025-01-23

SYSTEMS AND METHODS FOR STORING MATERIALS IN EARTHEN SUBTERRANEAN FORMATIONS

#32
20250027472
2025-01-23

IMPROVEMENTS RELATING TO ENERGY STORAGE

#33
20240429843
2024-12-26

POWER GENERATION DEVICE

#34
20240426280
2024-12-26

SYSTEMS AND METHODS FOR MODULAR PUMPED STORAGE HYDROPOWER

#35
20240376855
2024-11-14

Harnessing artesian aquifer energy modulating piezoelectric springs

#36
20240352914
2024-10-24

POWER TUNNEL

#37
20240337235
2024-10-10

Hybrid renewable pumped storage hydropower energy storage system

#38
20240318620
2024-09-26

ENERGY STORAGE SYSTEM FOR STORING ENERGY IN A WATERBODY

#39
20240297529
2024-09-05

System and method for storing energy, and for recovering stored energy by using liquid and gas as pistons

#40
20240287957
2024-08-29

FLUID DISPLACEMENT ENERGY STORAGE SYSTEMS AND PROCESSES TO ENABLE PRESSURE EQUILIBRIZED SUBSEA TANK

#41
20240271591
2024-08-15

GENERATOR SYSTEM FOR RESOURCE EXTRACTION AND INJECTION SYSTEM

#42
20240271590
2024-08-15

DEVICE, SYSTEM AND METHOD FOR ISOTHERMAL COMPRESSION, CONSTANT-PRESSURE POWER GENERATION AND PHYSICAL ENERGY STORAGE

#43
20240253759
2024-08-01

MOBILE UNDERWATER POWER GENERATION SYSTEM FOR OCEAN-GOING VESSEL

#44
20240247632
2024-07-25

Hydropower Water Source Modification

#45
20240228332
2024-07-11

SUBSEA DESALINATION SYSTEMS AND METHODS USING FLUID DISPLACEMENT

#46
20240218851
2024-07-04

HYDROPNEUMATIC ISOTHERMAL COMPRESSED AIR ENERGY STORAGE

#47
20240200524
2024-06-20

GPP SEAL SYSTEM MAINTENANCE, REPLACEMENT AND SEISMIC ISOLATION

#48
20240167627
2024-05-23

ELECTRIC ENERGY STORAGE IN THE FORM OF UNDERGROUND GRAVITY AND BUOYANT ENERGY

#49
20240159006
2024-05-16

Utility Scale Hydro Pump system and method

#50
20240141864
2024-05-02

Pressure-regulating hydrodynamic pump and wave engine

#51
20240141859
2024-05-02

ENERGY STORAGE SYSTEM

#52
20240117938
2024-04-11

Constant pressure gas storage in containments with mitigation for gas dissolution problems

#53
20240093665
2024-03-21

PUMP AND REVERSIBLE PUMP-TURBINE

#54
20240077054
2024-03-07

HYDROMECHANICAL ENERGY STORAGE AND ENERGY CONVERSION DEVICE, AND OPERATING METHOD

#55
20240011455
2024-01-11

Power production system

#56
20230417212
2023-12-28

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

#57
20230407833
2023-12-21

Submersible hydraulic assembly with facilitated deployment, facilitated maintenance and improved torsional stiffness for an energy storage plant, energy storage plant comprising said submersible hydraulic assembly, method for performing maintenance operations on a energy storage plant and method for assembling/disassembling an energy storage plant

#58
20230407832
2023-12-21

Hydropower electric generator

#59
20230400005
2023-12-14

Pressure-regulating hydrodynamic pump and wave engine

#60
20230391640
2023-12-07

Subsea desalination systems and methods using fluid displacement

#61
20230383718
2023-11-30

Energy storage system

#62
20230313775
2023-10-05

WATER TOWER-BASED APPARATUSES AND METHODS

#63
20230313774
2023-10-05

Power tunnel

#64
20230304466
2023-09-28

SYSTEMS AND METHODS FOR HARNESSING MARINE HYDROKINETIC ENERGY

#65
20230299697
2023-09-21

Smart controlling systems for energy storage

#66
20230250790
2023-08-10

Marine-Pumped Hydroelectric Energy Storage

#67
20230250603
2023-08-10

Power Generation System and Method

#68
20230243599
2023-08-03

THERMOELECTRIC DEVICE FOR STORAGE OR CONVERSION OF ENERGY

#69
20230243330
2023-08-03

Systems and methods for subterranean energy storage

#70
20230193932
2023-06-22

Energy storage system

#71
20230193871
2023-06-22

Method and device for storing energy

#72
20230184204
2023-06-15

Method for provisionally using an at least partially constructed lower reservoir for an underwater pumped-storage power plant

#73
20230175472
2023-06-08

SYSTEM FOR STORING AND RECOVERING ENERGY

#74
20230175469
2023-06-08

Modular Underwater Pumped-Storage Power Plant Reservoir

#75
20230151788
2023-05-18

Pumped hydro energy storage system and method, including fire extinguishing features

#76
20230123425
2023-04-20

Improved Pump and Reversible Pump-Turbine

#77
20230104219
2023-04-06

Supplying AC electricity from a photovoltaic system without an electronic power inverter

#78
20230101657
2023-03-30

Systems and methods of power generation with aquifer storage and recovery system

#79
20230096161
2023-03-30

SUPPLYING AC ELECTRICITY FROM A PHOTOVOLTAIC SYSTEM WITHOUT AN ELECTRONIC POWER INVERTER

#80
20230085371
2023-03-16

Circular dam and methods for generating, accumulating, storing, and releasing electrical energy

#81
20230059338
2023-02-23

SYSTEMS AND METHODS FOR ELECTRICITY GENERATION

#82
20230055645
2023-02-23

Electric generating precipitation collection system

#83
20230040672
2023-02-09

UNDERGROUND HYDROELECTRIC POWER AND DESALINATION

#84
20230029351
2023-01-26

ENERGY PRODUCTION AND STORAGE SYSTEM AND METHOD

#85
20230003185
2023-01-05

ENERGY GENERATION AND WATER CONSERVATION

#86
20230002993
2023-01-05

Methods and water reservoir systems for generating, accumulating, storing, and releasing electrical energy

#87
20220402700
2022-12-22

Subterranean energy storage system

#88
20220380994
2022-12-01

Energy island construction method and system

#89
20220372945
2022-11-24

Water tower-based apparatuses and methods

#90
20220364539
2022-11-17

Method for Constructing a Pumped Storage Power Plant in a Ground Depression, in Particular in an Open-Cast Mine

#91
20220356862
2022-11-10

Solution mined cavity system

#92
20220316437
2022-10-06

Reservoir-regulating digital load control

#93
20220299003
2022-09-22

Combined gravitational-hydraulic electric energy storage system

#94
20220282697
2022-09-08

Brine power

#95
20220282696
2022-09-08

PUMPED-STORAGE HYDROELECTRIC POWER STATION HAVING PIPE INSTALLED SUCH THAT BOTH ENDS OF PIPE HAVE DIFFERENT HEIGHTS, THEREBY INDUCING FLUID FLOW INSIDE PIPE, AND UTILIZING FLUID FLOW

#96
20220260046
2022-08-18

Hybrid renewable pumped storage hydropower energy storage system

#97
20220252037
2022-08-11

MULTI-MODE SUBTERRANEAN ENERGY SYSTEM

#98
20220243695
2022-08-04

Fluid displacement energy storage with fluid power transfer

#99
20220213860
2022-07-07

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

#100
20220195975
2022-06-23

Energy storage system

#101
20220195974
2022-06-23

ENERGY GENERATION AND WATER REGULATION BY DRAINAGE INTO AQUIFERS

#102
20220186701
2022-06-16

Energy balanced system for generating electric power

#103
20220178340
2022-06-09

Marine-pumped hydroelectric energy storage

#104
20220178339
2022-06-09

Power generation using storage reservoirs at different elevations

#105
20220178338
2022-06-09

Density differential desalination

#106
20220178337
2022-06-09

Fluid displacement energy storage

#107
20220178336
2022-06-09

ENERGY STORAGE AND BUFFERING USING MULTIPLE PRESSURE CONTAINERS

#108
20220145845
2022-05-12

Pumped-storage power plant, method for operating a pumped-storage power plant, and pumped-storage system

#109
20220127168
2022-04-28

Integrated power system

#110
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

#111
20220065214
2022-03-03

Power generation apparatus

#112
20220056879
2022-02-24

Self-Contained Hydroelectric Grid Power System

#113
20220056878
2022-02-24

Solar-Powered Cyclic-Water Powered System

#114
20220003199
2022-01-06

SYSTEMS COMPRISING MULTIPLE AND INTERCONNECTED TURBINES FOR GENERATION RENEWABLE ENERGY RELYING ON THE NATURAL PROPERTIES OF THE FLUIDS AND NATURAL FORCES, BY RUNNING PUMPS, COMPRESSORS, OR BOTH

#115
20210404435
2021-12-30

Combined pumped hydro and thermal energy storage

#116
20210404434
2021-12-30

Generating Electrical Power Underwater

#117
20210404433
2021-12-30

Underwater hydroelectric power generation system including a pelton turbine and perforated tubular penstocks

#118
20210396203
2021-12-23

UNDERGROUND ENERGY PRODUCTION AND STORAGE SYSTEM

#119
20210388810
2021-12-16

Hydrostatically compensated caes system having an elevated compensation liquid reservoir

#120
20210388809
2021-12-16

ACCUMULATOR OVER-PRESSURIZATION IN A HYDROSTATICALLY COMPENSATED COMPRESSED AIR ENERGY STORAGE SYSTEM

#121
20210363959
2021-11-25

Pumped hydro energy storage system and method

#122
20210332786
2021-10-28

Method to lift water and generate electrical power

#123
20210221351
2021-07-22

Low density fluid displacement to store or generate power

#124
20210215128
2021-07-15

Pumped storage system with waterfall control subsystem

#125
20210190029
2021-06-24

ELECTRICITY GENERATION SYSTEM USING HIGH-PRESSURE WATER EJECTION

#126
20210088023
2021-03-25

Hydropower electric generator

#127
20210071633
2021-03-11

Power plant using buoyant body and method of generating power by power plant using buoyant body

#128
20210071632
2021-03-11

Underwater energy storage system

#129
20210062778
2021-03-04

CYCLIC HYDROPOWER SYSTEM

#130
20210010453
2021-01-14

Method of hydraulically converting wind power

#131
20200400123
2020-12-24

Underwater energy storage system

#132
20200399848
2020-12-24

Low density fluid displacement to store or generate power

#133
20200347815
2020-11-05

Subsea energy storage

#134
20200325879
2020-10-15

Underground energy generating method

#135
20200291917
2020-09-17

Hydroelectric power system

#136
20200271088
2020-08-27

Method for multi-objective optimal operations of cascade hydropower plants based on relative target proximity and marginal analysis principle

#137
20200232439
2020-07-23

Pressurized Hydro-Electric Generator System

#138
20200224381
2020-07-16

Hydrodynamic installation having an electric drive for actuating a water protection

#139
20200198615
2020-06-25

Low density fluid displacement to store or generate power

#140
20200166014
2020-05-28

SOLID PUMPED HYDRO ENERGY STORAGE USING SLURRY

#141
20200164850
2020-05-28

ANTI-FOULING DOCKS AND LOW DENSITY FLUID DISPLACEMENT

#142
20200124020
2020-04-23

Power by gravity

#143
20200063706
2020-02-27

HYDROELECTRIC POWER GENERATION DEVICE USING MULTISTAGE CASCADE STRUCTURE

#144
20200049123
2020-02-13

VORTEX HYDROTURBINE AND METHOD FOR OPERATING THE VORTEX HYDROTURBINE

#145
20190345910
2019-11-14

Low density fluid displacement to generate power

#146
20190331084
2019-10-31

PUMPED STORAGE POWER STATION WITH ULTRA-CAPACITOR ARRAY

#147
20190301425
2019-10-03

METHOD AND APPARATUS FOR GENERATING POWER FROM ATMOSPHERIC PRESSURE AND VACUUM

#148
20190284995
2019-09-19

System for energy storage and recovery

#149
20190264649
2019-08-29

POWER GENERATING SYSTEM

#150
20190256172
2019-08-22

Floating membrane reservoir system

#151
20190249641
2019-08-15

Electricity generator and a method of generating electricity

#152
20190242357
2019-08-08

Hydraulic-pneumatic energy storage and recovery system

#153
20190186458
2019-06-20

Reversible pump-turbine installation

#154
20190170109
2019-06-06

PUMPED STORAGE HYDROPOWER SYSTEM

#155
20190085814
2019-03-21

Energy Storage Process and System

#156
20190063316
2019-02-28

Hybrid compressed air/water energy storage system and method

#157
20190058426
2019-02-21

System and method for operating a pumped storage power plant with a double fed induction machine

#158
20190032628
2019-01-31

System for producing energy via use of gravity

#159
20180335010
2018-11-22

Pressure collection and delivery process

#160
20180298874
2018-10-18

PUMPED HYDROELECTRIC ENERGY STORAGE

#161
20180252199
2018-09-06

Water powered motor for producing useful work

#162
20180216598
2018-08-02

System for producing energy via use of gravity

#163
20180180019
2018-06-28

Energy storage and power generation system and method

#164
20180156185
2018-06-07

Device and method for converting and storing electrical energy in the form of compressed air

#165
20180156184
2018-06-07

Energy storage and generation system

#166
20180149131
2018-05-31

POWER GENERATING SYSTEM

#167
20180106235
2018-04-19

DAMP-PROOF LAYER FOR CREATING A SEAL FOR A POTENTIAL ENERGY STORE, AND METHOD FOR ASSEMBLING A SEAL FROM DAMP-PROOF LAYERS FOR A POTENTIAL ENERGY STORE

#168
20180100482
2018-04-12

Hydroelectric power system and pump

#169
20180100480
2018-04-12

PUMPED STORAGE HYDROPOWER SYSTEM

#170
20180030958
2018-02-01

Hydro-pneumatic energy storage system

#171
20180030950
2018-02-01

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

#172
20170318771
2017-11-09

Algae cultivation systems and methods with bore waves

#173
20170298895
2017-10-19

GREEN POWER GENERATION SYSTEM AND METHOD

#174
20170260961
2017-09-14

Pumped-storage power generation control device and pumped-storage power generation control method

#175
20170241399
2017-08-24

Tidal wave powered device and a method for producing potential energy

#176
20170211540
2017-07-27

HYDRAULIC POWER GENERATION DEVICE

#177
20170204738
2017-07-20

Hydroelectric power generating system

#178
20170163124
2017-06-08

POWER GENERATION APPARATUS USING HEAD OF WASTEWATER IN BUILDING

#179
20170122284
2017-05-04

Stored energy system

#180
20170089178
2017-03-30

Hydraulic geofracture energy storage system with desalination

#181
20170082123
2017-03-23

Near isothermal combined compressed gas/pumped-hydro electricity storage with waste heat recovery capabilities

#182
20170074230
2017-03-16

Hydroelectricity and compressed-air power converter system

#183
20170074229
2017-03-16

Independent power generating method using water pressure and vapor, and generating device thereof

#184
20170012561
2017-01-12

Control device, control method of secondary excitation device, and variable speed pumped-storage generating system

#185
20160348637
2016-12-01

Method and system for combined pump water pressure-compressed air energy storage at constant turbine water pressure

#186
20160341173
2016-11-24

METHOD FOR INSTALLING A SO-CALLED "MARINE" PUMPED-STORAGE HYDROELECTRIC POWER PLANT AND CORRESPONDING PLANT

#187
20160333844
2016-11-17

Pumped-storage system

#188
20160298594
2016-10-13

MECHANICAL LEVERAGE AND GRAVITY GENERATING CLEAN POWER PLANT

#189
20160265505
2016-09-15

A DEVICE, SYSTEM AND METHOD FOR RECIRCULATION OF WATER AND ENERGY GENERATION

#190
20160237978
2016-08-18

Gear Pump for Hydroelectric Power Generation

#191
20160237843
2016-08-18

Hydraulic power recovery turbine with integrated bearing-clutch housing

#192
20160123296
2016-05-05

Synergic method for hydrodynamic energy generation with neutralized head pressure pump

#193
20160115938
2016-04-28

High building power generation device

#194
20160076510
2016-03-17

HYDRAULIC POWER GENERATION DEVICE

#195
20160076509
2016-03-17

Potential energy-based power generation system

#196
20160025063
2016-01-28

Alternative hydroelectric power plant

#197
20150361948
2015-12-17

Pumped-storage power plant

#198
20150330356
2015-11-19

ENERGY CONVERSION APPARATUS

#199
20150330355
2015-11-19

Pumped hydro tower

#200
20150292469
2015-10-15

ELECTRIC UNIT FOR A PUMP-STORAGE POWER PLANT

#201
20150219065
2015-08-06

POWER STORAGE SYSTEM

#202
20150204300
2015-07-23

System and method for low ecology impact generation of hydroelectric power

#203
20150198057
2015-07-16

Hydrodynamic energy generation system with energy recovery and levering subsystem

#204
20150176559
2015-06-25

Pumped storage power plant

#205
20150167627
2015-06-18

H2O Gravity Flow Generator

#206
20150159621
2015-06-11

Electrical Generator

#207
20150130192
2015-05-14

GRAVITY BASED ENERGY CONVERSION DEVICE

#208
20150128579
2015-05-14

METHOD AND SYSTEM FOR STORING ENERGY

#209
20150107245
2015-04-23

Coupling of a turbopump for molten salts

#210
20150091301
2015-04-02

Units and methods for energy storage

#211
20150056085
2015-02-26

System and method for storing energy

#212
20150048623
2015-02-19

METHOD FOR OPERATING AN ELECTRIC UNIT FOR A PUMPED-STORAGE POWER PLANT

#213
20150035499
2015-02-05

Method for using an electric unit

#214
20150035285
2015-02-05

Electric unit for a pumped-storage power plant having components within and outside of an underground cavern

#215
20150027952
2015-01-29

Hydraulic geofracture energy storage system with desalinization

#216
20150013327
2015-01-15

Hydroelectric power system and pump

#217
20150001854
2015-01-01

Energy recovering equipment as well as a method for recovering energy

#218
20140327247
2014-11-06

Multisource renewable energy generation

#219
20140312623
2014-10-23

Power generator

#220
20140270965
2014-09-18

Multi-purpose pumped storage facility

#221
20140246860
2014-09-04

Method and installation for producing supplementary electrical energy

#222
20140238020
2014-08-28

Method for the controlling and feeding of a power plant and power plant

#223
20140216022
2014-08-07

Compressed air energy storage system and method

#224
20140197641
2014-07-17

Hydroelectric power generating system

#225
20140161586
2014-06-12

Pump turbine plant

#226
20140060028
2014-03-06

Pumped-storage power plant

#227
20140042753
2014-02-13

ENERGY STORAGE RESERVOIR

#228
20140033700
2014-02-06

Hydraulic energy store

#229
20130341937
2013-12-26

Reclaiming energy from waste water in tall buildings

#230
20130341935
2013-12-26

Reclaiming energy from waste water in tall buildings

#231
20130257057
2013-10-03

Hydro electric energy generation and storage structure

#232
20130207390
2013-08-15

Hydroelectric in-pipe turbine uses

#233
20130089410
2013-04-11

Hydro-electric tube generation

#234
20130062882
2013-03-14

Power Sluice Gate System

#235
20130038062
2013-02-14

SYSTEM FOR PRODUCING HYDRAULIC TRANSIENT ENERGY

#236
20120326444
2012-12-27

Hydropower generating system

#237
20120285539
2012-11-15

MULTIPLE-USE AQUIFER-BASED SYSTEM

#238
20120280515
2012-11-08

Mechanical energy storage method and device

#239
20120274070
2012-11-01

Method and installation for producing supplementary electrical energy

#240
20120219433
2012-08-30

Apparatus and Method for Facilitating a Hydrostatic Pressure Increase in a Fluid Flowing in a Pipe

#241
20120138447
2012-06-07

Solar desalination system with solar-initiated wind power pumps

#242
20120112473
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