F05B2220/70642 - CPC Classification Index

#1

20260085663

2026-03-26

LINEAR SYNCHRONOUS MOTOR-BASED GRAVITATIONAL POTENTIAL ENERGY STORAGE SYSTEM

#2

20250172119

2025-05-29

KINETIC ENERGY RECOVERY WIND-WAVE INTEGRATED SYSTEM

#3

20210399552

2021-12-23

Method for starting a hydraulic turbine

#4

20210388757

2021-12-16

AIR ENERGY STORAGE WITH INTERNAL COMBUSTION ENGINES

#5

20210285420

2021-09-16

Method for controlling a wind farm

#6

20200136395

2020-04-30

Method for starting a hydraulic turbine

#7

20190068023

2019-02-28

Generator rotor for a generator of a wind turbine or a hydroelectric power plant, and a generator, wind turbine and hydroelectric power plant comprising same

#8

20190027997

2019-01-24

Synchronous reluctance machine

#9

20180351491

2018-12-06

Direct-drive wind turbine circuit topology with single-stage boost inverter

#10

20180335014

2018-11-22

Method of operating a wind turbine without grid connection and wind turbine

#11

20170257016

2017-09-07

Synchronous superconductive rotary machine having a slidable pole assembly and methods thereof

#12

20120306212

2012-12-06

DIRECT-ACTION SUPERCONDUCTING SYNCHRONOUS GENERATOR FOR A WIND TURBINE

#13

20120133342

2012-05-31

Wind turbine generator and surplus energy control method for wind turbine generator

#14

20120115661

2012-05-10

Differential gearing for an energy generation plant and operating method

#15

20120104754

2012-05-03

WIND TURBINE WITH LVRT CAPABILITIES

#16

20120101640

2012-04-26

ADAPTIVE VOLTAGE CONTROL FOR WIND TURBINES

#17

20120098263

2012-04-26

WIND ENERGY PLANT AND DRIVE DEVICE FOR ADJUSTING A ROTOR BLADE

#18

20120038156

2012-02-16

ELECTRICAL ENERGY GENERATING INSTALLATION DRIVEN AT VARIABLE ROTATIONAL SPEEDS, WITH A CONSTANT OUTPUT FREQUENCY, ESPECIALLY A WIND POWER INSTALLATION

#19

20110285130

2011-11-24

Power System Frequency Inertia for Wind Turbines

#20

20110266811

2011-11-03

Synchronous generator, especially for wind turbines

#21

20110210550

2011-09-01

POWER GENERATION UNIT AND A METHOD GENERATING ELECTRIC ENERGY

#22

20110204632

2011-08-25

Synchronous Induced Wind Power Generation System

#23

20110076167

2011-03-31

Electric Motor II

#24

20110076166

2011-03-31

Turbo Charger II

#25

20110018272

2011-01-27

Direct driven free flow turbine

#26

20100308591

2010-12-09

INLINE HYDRO ELECTRIC GENERATION SYSTEM

#27

20100308586

2010-12-09

Wind Turbine Systems Using Continuously Variable Transmissions and Controls

#28

20100279813

2010-11-04

Variable ratio transmission

#29

20100156106

2010-06-24

Wave energy capturing device

#30

20100052330

2010-03-04

Use of oriented grain rolling in a wind turbine generator

#31

20100052325

2010-03-04

Energy generation plant driven by wind or water currents

#32

20090096212

2009-04-16

Power generation system, wind turbine, and a method of controlling the wind turbine for supplying power to an electrical grid

#33

20080315707

2008-12-25

Wind power installation with ring generator having a stator with grooves to receive a stator winding

#34

20080292480

2008-11-27

Electric Motor

#35

20080289333

2008-11-27

TurboCharger with an electric motor

#36

20080143111

2008-06-19

Wind power generation system

#37

20080136185

2008-06-12

Excitation voltage supply for synchronous generator used in a wind turbine, and method of starting a wind turbine having such excitation voltage supply

#38

20080054643

2008-03-06

Method for the operation of a wind energy plant with a synchronous generator and a superimposition gearbox

#39

20080054642

2008-03-06

Method for the operation of a wind energy plant with a synchronous generator and a superimposition gearbox

#40

20070281558

2007-12-06

Electrical machine with double-sided rotor

#41

20070029802

2007-02-08

Wind turbine for producing electrical power and a method of operating the same

#42

20060232156

2006-10-19

Synchronous machine having a stator with grooves to receive a stator winding, such as a synchronous machine for a wind power installation

#43

20060232070

2006-10-19

Apparatus for producing a stator with grooves to receive a stator winding, such as a stator of a ring generator for a wind power installation

#44

20060210406

2006-09-21

Wind turbine with hydraulic transmission

#45

20060192445

2006-08-31

Synchronous machine

#46

20060001269

2006-01-05

Electrical machine with double-sided rotor

#47

20050042097

2005-02-24

Wind power installation with ring generator having a stator with groves to receive a stator winding