ClassID:

144632

F05B2240/301 - page 2 - CPC Classification

Classification description:

Components; Rotors; Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor Cross-section characteristics

Recent Application in this class:
#301
20100278650
2010-11-04

Wind turbine blade assembly and apparatus

#302
20100266382
2010-10-21

WIND TURBINE WITH BOUNDARY LAYER CONTROL

#303
20100264660
2010-10-21

Water flow electric power generator

#304
20100247320
2010-09-30

WIND TURBINE BLADE

#305
20100244456
2010-09-30

Constant direction four quadrant lift type vertical shaft wind power generator

#306
20100213721
2010-08-26

Wind turbine blade and wind power generator using the same

#307
20100202869
2010-08-12

HUBLESS WINDMILL

#308
20100187826
2010-07-29

Submersible rotor design

#309
20100143152
2010-06-10

Method and apparatus for increasing lift on wind turbine blade

#310
20100143147
2010-06-10

Sparcap for wind turbine rotor blade and method of fabricating wind turbine rotor blade

#311
20100143142
2010-06-10

SPARCAP SYSTEM FOR WIND TURBINE ROTOR BLADE AND METHOD OF FABRICATING WIND TURBINE ROTOR BLADE

#312
20100143138
2010-06-10

Axial flow wind turbine

#313
20100135815
2010-06-03

Spar cap for wind turbine blades

#314
20100135814
2010-06-03

Retrofit sleeve for wind turbine blade

#315
20100127504
2010-05-27

Wind turbine blade

#316
20100124506
2010-05-20

VERTICAL AXIS WIND TURBINE BLADE

#317
20100119374
2010-05-13

WIND TURBINE & WIND TURBINE BLADE

#318
20100104444
2010-04-29

BLADE FOR WIND TURBINES

#319
20100092300
2010-04-15

Reinforced blade for wind turbine

#320
20100084862
2010-04-08

Hydroelectric power device

#321
20100080709
2010-04-01

Wind turbine blade

#322
20100074750
2010-03-25

Floating device for production of energy from water currents

#323
20100047070
2010-02-25

OPTIMISED WIND TURBINE BLADE

#324
20100028162
2010-02-04

Rotor blade extension portion having a skin located over a framework

#325
20100028161
2010-02-04

Segmented rotor blade extension portion

#326
20100028157
2010-02-04

Wind turbine blade tip shapes

#327
20100003130
2010-01-07

Windmill device with oriented air flow

#328
20090317255
2009-12-24

Vertical axis wind turbine

#329
20090304512
2009-12-10

Wind turbine apparatus

#330
20090297355
2009-12-03

Wind turbine blade planforms with twisted and tapered tips

#331
20090297354
2009-12-03

Wind turbine blades with twisted and tapered tips

#332
20090297353
2009-12-03

Wind turbine blades with twisted tips

#333
20090284018
2009-11-19

Vertical axis turbine to generate wind power

#334
20090274559
2009-11-05

Rotor blade of a wind energy unit

#335
20090263252
2009-10-22

Wind generator blade with divergent trailing edge

#336
20090257884
2009-10-15

WIND TURBINE BLADE AND ASSEMBLY

#337
20090232656
2009-09-17

Blade for a wind turbine rotor

#338
20090230686
2009-09-17

River and tidal power harvester

#339
20090226324
2009-09-10

Wind turbine blade

#340
20090202354
2009-08-13

Wind turbine blade

#341
20090184521
2009-07-23

Twin wind turbine power system

#342
20090169354
2009-07-02

Apparatus for use of flow energy

#343
20090167030
2009-07-02

VERTICAL AXIS OMNI-DIRECTIONAL TURBINE

#344
20090167027
2009-07-02

Blade for windmill, windmill and wind power generator

#345
20090160194
2009-06-25

Wind turbine blade and assembly

#346
20090142197
2009-06-04

Wind turbine rotor blade

#347
20090123289
2009-05-14

Quiet airfoils for small and large wind turbines

#348
20090116968
2009-05-07

Blade for wind turbines & an improved wind turbine

#349
20090104038
2009-04-23

Airfoil Family for a Blade of a Wind Turbine

#350
20090100676
2009-04-23

Vertical axis wind turbine and method of installing blades therein

#351
20090074574
2009-03-19

Wind turbine blade with variable aerodynamic profile

#352
20090068019
2009-03-12

Rotor blade for a wind power plant

#353
20090060744
2009-03-05

Vertical axis self-breaking wind turbine

#354
20090041584
2009-02-12

Kinetic hydro power triangular blade hub

#355
20090028704
2009-01-29

Wind turbine blade with cambering flaps

#356
20090022598
2009-01-22

Wind turbine rotor blade and wind turbine rotor

#357
20090016892
2009-01-15

Vertical shaft wind turbine and method of installing blades therein

#358
20090001730
2009-01-01

VERTICAL AXIS WINDMILL WITH WINGLETTED AIR-TILTABLE BLADES

#359
20080317600
2008-12-25

Wind turbine rotor blade with vortex generators

#360
20080317582
2008-12-25

Vertical axis dual vortex downwind inward flow impulse wind turbine

#361
20080309090
2008-12-18

Power generating system including modular wind turbine-generator assembly

#362
20080273978
2008-11-06

Vertical axis omni-directional wind turbine

#363
20080265583
2008-10-30

Water turbine with bi-symmetric airfoil

#364
20080256795
2008-10-23

WIND TURBINE BLADE HAVING CURVED CAMBER AND METHOD OF MANUFACTURING SAME

#365
20080253889
2008-10-16

Vertical axis wind turbines

#366
20080219850
2008-09-11

Wind Turbine

#367
20080166235
2008-07-10

Wind turbine airfoil family

#368
20080106102
2008-05-08

Wind-powered electricity generator

#369
20070231151
2007-10-04

Active flow control for wind turbine blades

#370
20070224029
2007-09-27

Blades for a Vertical Axis Wind Turbine, and the Vertical Axis Wind Turbine

#371
20070217917
2007-09-20

Rotary fluid dynamic utility structure

#372
20070189899
2007-08-16

Wind turbine rotor

#373
20070104582
2007-05-10

Vertical axis wind turbine with optimized blade profile

#374
20070098558
2007-05-03

Three bladed Savonius rotor

#375
20070077150
2007-04-05

Wind turbine with noise-reducing blade rotor

#376
20060280614
2006-12-14

Rotor blade for a wind power station

#377
20060216153
2006-09-28

Rotor blade for a wind power plant

#378
20060177303
2006-08-10

Radial-flow, horizontal-axis fluid turbine

#379
20060133937
2006-06-22

System and method for passive load attenuation in a wind turbine

#380
20060115357
2006-06-01

Runner for francis type hydraulic turbine

#381
20060051210
2006-03-09

Francis turbine

#382
20060018759
2006-01-26

Rotor blade

#383
20050214115
2005-09-29

Hydraulic machine rotor

#384
20050042104
2005-02-24

Francis turbine

#385
19240148
2026-04-07

Reinforced blade for a vertical axis wind turbine

#386
19074364
2025-11-04

Transverse-axis torque turbine

#387
18939611
2025-09-23

Low speed multiblade wind turbine

#388
18909222
2026-04-28

Centrifugal compressor impeller with nonlinear backwall

#389
18772749
2026-03-24

High-speed pressurized impeller disk

#390
18609714
2024-12-24

Wind turbine for a region with low wind speed

#391
16662839
2021-12-21

Light weight mast for supporting a wind turbine

#392
16399102
2019-10-08

Fan design

#393
16255179
2020-05-12

Vertical axis wind turbine

#394
16202062
2022-03-08

Electric vehicle with power controller for distributing and enhancing energy from a generator

#395
15198697
2019-09-03

Compact fan for a recreational vehicle

#396
12068377
2016-07-05

Wind turbine with pollutant capturing surfaces