ClassID:

142378

F03D1/025 - CPC Classification

Classification description:

Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors coaxially arranged

Recent Application in this class:
#1
20260022685
2026-01-22

WIND POWERED GENERATION SYSTEM

#2
20250376971
2025-12-11

WIND PLANT METHOD AND APPARATUS

#3
20250347263
2025-11-13

WIND TURBINE AND WIND POWER PLANT

#4
20250257712
2025-08-14

TUBULAR TURBINE SYSTEMS AND METHODS

#5
20240191693
2024-06-13

WIND PLANT METHOD AND APPARATUS

#6
20230287867
2023-09-14

VIMPROVED HORIZONTAL WIND TURBINE

#7
20230167838
2023-06-01

APPARATUS AND METHOD FOR FLUID MANIPULATION

#8
20210262444
2021-08-26

WIND-POWERED ELECTRICAL GENERATION SYSTEM

#9
20210239095
2021-08-05

Wind plant method and apparatus

#10
20210095636
2021-04-01

DRIVE SYSTEM FOR COUNTER-ROTATING PARTS

#11
20200400124
2020-12-24

Wind plant method and apparatus

#12
20200340443
2020-10-29

Wind energy systems

#13
20200141381
2020-05-07

Ducted and balanced wind turbine

#14
20200095975
2020-03-26

Cascaded wind turbine

#15
20190368475
2019-12-05

Air-compression energy-storage and power-supply system having air purification capability through using solar energy

#16
20190293047
2019-09-26

Fluid machine and power generation device

#17
20190242359
2019-08-08

WIND-TUNNEL TURBINE VACUUM AIR FLOW GENERATOR

#18
20190203691
2019-07-04

WIND COLLECTION APPARATUS AND WIND POWER GENERATION EQUIPMENT

#19
20190055928
2019-02-21

Floating marine wind turbine

#20
20190048904
2019-02-14

Apparatus and method for fluid manipulation

#21
20190024626
2019-01-24

Wind energy systems

#22
20180371908
2018-12-27

Paired air pressure energy power system and power method thereof

#23
20180363623
2018-12-20

WIND ENERGY SYSTEM INCLUDING CANYON STRUCTURE

#24
20180355721
2018-12-13

Paired air pressure energy storage device, inspection method and balance detection mechanism thereof

#25
20180258908
2018-09-13

Rotary device for fluid power generation

#26
20180216599
2018-08-02

HORIZONTAL AXIS WIND MACHINE WITH MULTIPLE ROTORS

#27
20180171966
2018-06-21

WIND TURBINE WITH ROTATING AUGMENTOR

#28
20180163695
2018-06-14

Multiple-blade wind machine with shrouded rotors

#29
20180128240
2018-05-10

Efficient systems and methods for construction and operation of mobile wind power platforms

#30
20170292497
2017-10-12

Adjustable dual rotor wind turbine

#31
20170260963
2017-09-14

Spiral blade having wind guide

#32
20170204831
2017-07-20

Drive system for wind turbine with contra-rotating generator

#33
20170198678
2017-07-13

Dual rotor wind power assembly (variants)

#34
20170138336
2017-05-18

MULTI-TIERED WIND TURBINE APPARATUS

#35
20170122290
2017-05-04

Turbine blade arrangement

#36
20160298601
2016-10-13

Intelligent wind turbine generator

#37
20160281677
2016-09-29

Floating marine wind turbine

#38
20160230744
2016-08-11

WIND TURBINE WITH DUAL BLADE ASSEMBLIES

#39
20160208772
2016-07-21

Wind turbine of low wind speeds

#40
20160186725
2016-06-30

THERMAL WIND TURBINES

#41
20160186719
2016-06-30

PSP WIND-POWERED GENERATOR COMPRISING BLADES AT DIHEDRAL ANGLES

#42
20160172934
2016-06-16

Contra rotor wind turbine system using a hydraulic power transmission device

#43
20160076519
2016-03-17

Wind energy system and method for using same

#44
20150354530
2015-12-10

MULTIPLE AIRFOIL WIND TURBINE BLADE ASSEMBLY

#45
20150260154
2015-09-17

Wind energy recovery in the wheels of vehicles

#46
20150252790
2015-09-10

Fluid power generating apparatus

#47
20150240778
2015-08-27

Submersible power generator

#48
20150226173
2015-08-13

SYSTEM FOR TRANSFORMING FLUID FLOW POWER (EMBODIMENTS)

#49
20150219068
2015-08-06

Wind turbine having a plurality of airfoil rings and counter rotating generators

#50
20150167631
2015-06-18

High efficiency wind turbine

#51
20150115614
2015-04-30

Motor assisted power generation system

#52
20150108757
2015-04-23

Turbine driven by wind or motor and method for generating electricity

#53
20150037153
2015-02-05

Cross flow turbine with straight vertical and helical slanted blades

#54
20150028592
2015-01-29

Power generating apparatus exploiting wind energy and method for operating thereof

#55
20140361543
2014-12-11

Wind powered apparatus having counter rotating blades

#56
20140321975
2014-10-30

Wind turbine

#57
20140271216
2014-09-18

Horizontal axis wind or water turbine with forked or multi-blade upper segments

#58
20140227092
2014-08-14

Diffuser augmented wind turbines

#59
20140219799
2014-08-07

Stationary co-axial multi-rotor wind turbine supported by continuous central driveshaft

#60
20140099201
2014-04-10

Energy Recovery of Accelerating Slipstream

#61
20140062093
2014-03-06

Buildings with wind-energy-conversion systems

#62
20140044535
2014-02-13

Wind turbines augmented with rotating diffusers

#63
20140021722
2014-01-23

Dual rotor wind or water turbine

#64
20140015255
2014-01-16

Wind turbine installation and advance double counter-rotating blades, 90° drive assembly with lower generator mounting system

#65
20140008915
2014-01-09

GEARLESS CONTRA-ROTATING WIND GENERATOR

#66
20130336775
2013-12-19

Wind energy system and method for using same

#67
20130315732
2013-11-28

Horizontal axis wind machine with multiple rotors

#68
20130284608
2013-10-31

Wind energy system and method for using same

#69
20130200618
2013-08-08

HIGH EFFICIENCY WIND TURBINE

#70
20130136601
2013-05-30

Large Contra-Rotating Wind Turbine

#71
20130127173
2013-05-23

Multi-type wind turbine

#72
20130071228
2013-03-21

STATIONARY CO-AXIAL MULTI-ROTOR WIND TURBINE SUPPORTED BY CONTINUOUS CENTRAL DRIVESHAFT

#73
20130064654
2013-03-14

Housing for a high efficiency wind turbine

#74
20130039755
2013-02-14

Generation of renewable energy from mass airflow in underground tunnels

#75
20130038068
2013-02-14

Compounded Wind Power Generator

#76
20130038067
2013-02-14

Eddy-type wind power generator

#77
20120328425
2012-12-27

Double tunnel wind turbine

#78
20120282092
2012-11-08

METHOD AND DEVICES FOR COMPACT FORCED VELOCITY TURBINES

#79
20120257971
2012-10-11

WindJet ® Turbine Ring

#80
20120248770
2012-10-04

High Altitude Wind Power Generator with Kite and Dual Purpose Circular Fan

#81
20120223527
2012-09-06

Wind power generating apparatus

#82
20120217757
2012-08-30

Compound-type wind power generator

#83
20120205917
2012-08-16

Efficient energy conversion devices and methods

#84
20120181791
2012-07-19

Captured wind energy (CWE)

#85
20120128496
2012-05-24

WIND ENERGY USE

#86
20120121429
2012-05-17

Concentric ring wind turbine

#87
20120111531
2012-05-10

Pressure reducing gas storage device, air-jet system, and motor vehicle

#88
20120091721
2012-04-19

Wind turbine generator

#89
20120074712
2012-03-29

MULTI-ROTOR FLUID TURBINE DRIVE WITH SPEED CONVERTER

#90
20120068670
2012-03-22

WIND JET TURBINE

#91
20120068466
2012-03-22

Energy recovery system for exhaust energy capture and electrical generation with generator built into fan

#92
20120051916
2012-03-01

Wind turbine with auxiliary fins

#93
20120049523
2012-03-01

WIND JET TURBINE II

#94
20120019006
2012-01-26

Coaxial wind turbine

#95
20120003077
2012-01-05

ANNULAR MULTI-ROTOR DOUBLE-WALLED TURBINE

#96
20110316279
2011-12-29

Wind turbines with diffusers for the buildings or structures

#97
20110305570
2011-12-15

AERODYNAMIC DEAD ZONE-LESS TRIPLE ROTORS INTEGRATED WIND POWER DRIVEN SYSTEM

#98
20110304153
2011-12-15

Wind turbine having multiple power generating elements

#99
20110272951
2011-11-10

Wind powered apparatus having counter rotating blades

#100
20110260464
2011-10-27

POWER INCREASING POLE-LIKE ARRANGEMENT FOR AIR TURBINE

#101
20110223042
2011-09-15

Fan assembly

#102
20110215584
2011-09-08

Air / wind tunnel powered turbine, electric power recharging system

#103
20110198135
2011-08-18

WIND TURBINE MOUNTED ON CAR

#104
20110162924
2011-07-07

Brake system for using the air resistance of a vehicle to produce energy

#105
20110156403
2011-06-30

Symmetrical dual-structured wind power generation system

#106
20110080004
2011-04-07

RENEWABLE ENERGY GENERATION ECO SYSTEM

#107
20110070065
2011-03-24

Wind energy device with increased wind speed feature

#108
20110049902
2011-03-03

Air cooled brushless wind alternator

#109
20110038726
2011-02-17

INDEPENDENT VARIABLE BLADE PITCH AND GEOMETRY WIND TURBINE

#110
20110037272
2011-02-17

Frame structure for supporting a wind power plant

#111
20110037268
2011-02-17

Adaptive control ducted compound wind turbine

#112
20110018278
2011-01-27

Device and method for capturing energy from building systems

#113
20100319308
2010-12-23

Ecologically clean method and apparatus for water harvesting from air

#114
20100310361
2010-12-09

WIND TURBINE WITH TWO SUCCESSIVE PROPELLERS

#115
20100308174
2010-12-09

ROTOCRAFT POWER-GENERATION, CONTROL APPARATUS AND METHOD

#116
20100259050
2010-10-14

Wind turbine electricity generating system

#117
20100230967
2010-09-16

WIND POWER GENERATOR

#118
20100225190
2010-09-09

Generator

#119
20100225119
2010-09-09

Drive system for use with flowing fluids

#120
20100215502
2010-08-26

MULTISTAGE WIND TURBINE WITH VARIABLE BLADE DISPLACEMENT

#121
20100207389
2010-08-19

Wind turbine

#122
20100207388
2010-08-19

Supplemental power source

#123
20100196157
2010-08-05

Turbine apparatus

#124
20100171314
2010-07-08

Vertically Oriented Wind Tower Generator

#125
20100135809
2010-06-03

WIND WHEEL

#126
20100111697
2010-05-06

WIND ENERGY GENERATION DEVICE

#127
20100102566
2010-04-29

Turbine unit and assembly

#128
20100090468
2010-04-15

Windmill-type electric generation system

#129
20100026010
2010-02-04

MULTIPLE GENERATOR WIND TURBINE

#130
20100021307
2010-01-28

Dual impeller generator

#131
20090322085
2009-12-31

METHOD AND APPARATUS FOR ENHANCED WIND TURBINE DESIGN

#132
20090267347
2009-10-29

Pelagic sustainable energy system

#133
20090261590
2009-10-22

ELECTRICAL ENERGY GENERATING SYSTEM

#134
20090224555
2009-09-10

Load Supporting Frame Multi-Level Wind Turbine Generator

#135
20090220342
2009-09-03

SHAFTLESS VERTICAL AXIS WIND TURBINE

#136
20090218823
2009-09-03

WIND TURBINE STRUCTURE HAVING A PLURALITY OF PROPELLER-TYPE ROTORS

#137
20090152370
2009-06-18

Chimney device and methods of using it to fight global warming, produce water precipitation and produce electricity

#138
20090072541
2009-03-19

AIR DRIVEN FAN GENERATOR SYSTEM

#139
20090053057
2009-02-26

Wind powered rotor mechanism with means to enhance airflow over rotor

#140
20080265585
2008-10-30

HIGH ELECTRICITY PRODUCTION WIND GENERATOR

#141
20080252079
2008-10-16

Generator Device with Both Driving Units

#142
20080197639
2008-08-21

BI-DIRECTIONAL WIND TURBINE

#143
20080170941
2008-07-17

Wind turbine

#144
20080150293
2008-06-26

WIND ENERGY SYSTEM

#145
20080124217
2008-05-29

Multi-Turbine Airflow Amplifying Generator

#146
20080056897
2008-03-06

Counter rotating rotor head

#147
20080031735
2008-02-07

Single-Shaft Dual-Direction Fan Assembly

#148
20070241623
2007-10-18

Wind driven electric generator apparatus

#149
20070035138
2007-02-15

Vacuum powered generators

#150
20070029801
2007-02-08

Wind driven electric generator apparatus

#151
20060233635
2006-10-19

Stationary co-axial multi-rotor wind turbine supported by continuous central driveshaft

#152
20060163963
2006-07-27

Counter rotating generator

#153
20060138782
2006-06-29

Multi-turbine airflow amplifying generator

#154
20060125243
2006-06-15

Mechanism for rotating the rotor/s, stator/s, an electric power generator/s

#155
20060093483
2006-05-04

Sky turbine that is mounted on a city

#156
20060093482
2006-05-04

Drive device for a windmill provided with two counter-rotative propellers

#157
20060012182
2006-01-19

Wind energy conversion system

#158
20060006658
2006-01-12

Wind energy conversion system

#159
20050214119
2005-09-29

Dual rotor wind turbine

#160
20050214117
2005-09-29

Multi-rotor wind turbine with generator as counterweight

#161
20050118027
2005-06-02

Wind power generator with multiple rotary wings

#162
20050086937
2005-04-28

Combined solar and wind powered rotor mechanism

#163
20050082839
2005-04-21

Wind energy conversion system

#164
13906561
2017-01-10

Windmill blade assembly