ClassID:

218107

H02N2/185 - CPC Classification

Classification description:

Electric machines in general using piezo-electric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams

Recent Application in this class:
#1
20260142592
2026-05-21

Electrohydraulic and Piezoelectric Based Energy Conversion System

#2
20260060188
2026-03-05

ENERGY-AUTONOMOUS BATTERY-FREE SYSTEM FRO SMART IRRIGATION

#3
20260058580
2026-02-26

CYMBAL MICROMEMBRANE-BASED ENERGY HARVESTING IN ACOUSTIC METASURFACES

#4
20250300576
2025-09-25

ENERGY HARVESTING SYSTEM UTILIZING PVDF PIEZOELECTRIC FILM

#5
20250297592
2025-09-25

SYSTEMS AND METHODS FOR ENERGY HARVEST

#6
20250260343
2025-08-14

ENERGY EXTRACTION ARRANGEMENT, METHOD, AND SYSTEM

#7
20250247022
2025-07-31

UTILIZING PIEZOELECTRIC GENERATION TO HARNESS WASTE ENERGY IN FLOW LIMITERS USED IN REMOTE WELL SITE

#8
20250119075
2025-04-10

ENERGY HARVESTING APPARATUS

#9
20250105763
2025-03-27

ENERGY HARVESTER, METHOD, AND SYSTEM

#10
20250074563
2025-03-06

Bionic cuttlefish-typed underwater detection robot

#11
20240391279
2024-11-28

SELF-REINFLATING TIRE

#12
20240178767
2024-05-30

Dual-rotor microfluidic energy capturing and power generating device based on piezoelectric effect

#13
20240125295
2024-04-18

SYSTEMS AND METHODS FOR ENERGY HARVEST

#14
20230397553
2023-12-14

ENERGY-AUTONOMOUS BATTERY-FREE SYSTEM FOR SMART IRRIGATION

#15
20230374887
2023-11-23

Downhole flow sensing with power harvesting

#16
20230216435
2023-07-06

PIEZOELECTRIC AIRFLOW POWER GENERATOR

#17
20220311359
2022-09-29

Energy generation and energy recycling

#18
20220305272
2022-09-29

Optimized piezoelectric transducer-based energy harvesting module, in particular for charging the battery of an implantable medical device such as a leadless autonomous cardiac capsule

#19
20220190746
2022-06-16

Wind power generator using piezoelectric element

#20
20220038034
2022-02-03

Piezoelectric and magnetostrictive energy harvesting with pipe-in-pipe structure

#21
20210299496
2021-09-30

Extinguishing Nozzle, Fire Extinguishing Installation and Fire Protection System with Energy Harvesting

#22
20210297014
2021-09-23

Flow energy harvesting system with coupled piezoelectric devices and flow disruptors

#23
20210257939
2021-08-19

Piezoelectric power apparatus

#24
20210218352
2021-07-15

Energy harvesting system using multiple ambient energy sources

#25
20210167699
2021-06-03

Energy-generating apparatus for utilizing the energy of a flowing medium

#26
20200313575
2020-10-01

Funnel-shaped underwater energy harvesting equipment

#27
20200263659
2020-08-20

Multi-piston bladeless wind turbine

#28
20200259427
2020-08-13

Leadless autonomous cardiac capsule with rotatably-mounted piezoelectric energy harvester

#29
20200067428
2020-02-27

Adaptive hybrid wireless power generation using piezoelectric element and power beaming in hydraulic systems

#30
20190253006
2019-08-15

Harvesting energy from fluid flow

#31
20190253005
2019-08-15

Harvesting energy from fluid flow

#32
20190253004
2019-08-15

Harvesting energy from fluid flow

#33
20190253003
2019-08-15

Harvesting energy from fluid flow

#34
20190229648
2019-07-25

PIEZOELECTRIC POWER APPARATUS

#35
20190207537
2019-07-04

Piezoelectric Zero-point Power Units

#36
20190097548
2019-03-28

Flow energy harvesting devices and systems

#37
20190068084
2019-02-28

ENERGY HARVESTER AND METHOD FOR CONVERTING KINETIC ENERGY TO ELECTRICAL ENERGY

#38
20180355840
2018-12-13

Apparatus for Generating Energy from a Fluid Flow Induced Movement of a Contacting Surface Structure Relative to an Opening to a Cavity in a Frame

#39
20180355837
2018-12-13

Systems and methods for energy harvest

#40
20180351480
2018-12-06

Harvesting energy from fluid flow

#41
20180291711
2018-10-11

Vortex energy harvester for downhole applications

#42
20180195492
2018-07-12

Device for Generating Energy and Method for Use of the Device

#43
20180040806
2018-02-08

Flexible compact nanogenerators based on mechanoradical-forming porous polymer films

#44
20180030954
2018-02-01

Floating piezoelectric assembly for generating energy from waves

#45
20170366106
2017-12-21

USING PIEZOELECTRIC ELEMENTS IN A HYDROELECTRIC SYSTEM

#46
20170284365
2017-10-05

Electrical power generator harnessing a swaying movement of a pole and including a system for generating a magnetic repulsion force

#47
20170268483
2017-09-21

WIND POWER GENERATION SYSTEM

#48
20170207731
2017-07-20

Piezoelectric generator for hydraulic systems

#49
20170207730
2017-07-20

Wind power generation device

#50
20170204839
2017-07-20

Apparatus for Generating Energy from a Fluid Flow Induced Movement of a Contacting Surface Structure Relative to an Opening to a Cavity in a Frame

#51
20170149358
2017-05-25

Electrode stacked energy conversion device using liquid

#52
20170033713
2017-02-02

Device for harvesting energy from a fluidic flow including a thin film of piezoelectric material

#53
20160301331
2016-10-13

Piezoelectric generator for hydraulic systems

#54
20160273947
2016-09-22

Device for determining a property of a fluid and method of forming the same

#55
20160268932
2016-09-15

Power generation device for mobile body

#56
20160238489
2016-08-18

Hydraulic system sensor

#57
20160226405
2016-08-04

Systems and methods of harvesting energy in a wellbore

#58
20160164437
2016-06-09

Piezoelectric power generation system

#59
20160164390
2016-06-09

Power generator, power generator set and power generation system

#60
20160126868
2016-05-05

Systems and methods for harvesting piezoelectric energy from hydraulic pressure fluctuations

#61
20160126867
2016-05-05

System and method for electric power generation using piezoelectric modules

#62
20160126866
2016-05-05

System and method for electric power generation using structured stacked piezoelectric arrays

#63
20160126865
2016-05-05

System and method for electric power generation using structured piezoelectric arrays

#64
20160111980
2016-04-21

ENERGY HARVESTING DEVICE AND METHOD OF HARVESTING ENERGY

#65
20160087556
2016-03-24

FLUIDIC ENERGY HARVESTER USING ACTIVE MATERIAL

#66
20160076923
2016-03-17

Ultrasonic flow meter using reflected beams

#67
20160013737
2016-01-14

Electrical Energy Generator and Method of Generating Electrical Energy

#68
20160001325
2016-01-07

Self-Sustaining-Vibrational and Acoustic Piezoelectric Resonator-Acoustic Refigeration Core Generator of Electricity, Heating and Cooling - SS-VAPER-ARC

#69
20150372619
2015-12-24

Floating off-shore power generation apparatus using ionic polymeric metal composite

#70
20150316263
2015-11-05

Propellant flow actuated piezoelectric igniter for combustion engines

#71
20150285223
2015-10-08

Apparatus and methods for recovery of variational wind energy

#72
20150214862
2015-07-30

Dielectric elastomer powered boat and electricity generator and associated method

#73
20150180376
2015-06-25

Resonant energy harvester, aircraft component comprising the resonant energy harvester and an aircraft comprising the resonant energy harvester or the aircraft component

#74
20150123405
2015-05-07

Power production in a completed well using magnetostrictive materials

#75
20150115775
2015-04-30

Piezoelectric power generator using wind power

#76
20150001990
2015-01-01

Device for recovering and converting heat energy into electrical energy

#77
20140319970
2014-10-30

Flow energy piezoelectric bimorph nozzle harvester

#78
20140312742
2014-10-23

Flexure-enhancing system for improved power generation in a wind-powered piezoelectric system

#79
20140265733
2014-09-18

FLEXURE-ENHANCING SYSTEM FOR IMPROVED POWER GENERATION IN A WIND-POWERED PIEZOELECTRIC SYSTEM

#80
20140062093
2014-03-06

Buildings with wind-energy-conversion systems

#81
20140042751
2014-02-13

Apparatus for creating electricity from pressure fluctuations in pipes

#82
20140015378
2014-01-16

Ribbon transducer and pump apparatuses, methods and systems

#83
20130328316
2013-12-12

Systems and methods to harvest fluid energy in a wellbore using preloaded magnetostrictive elements

#84
20130119669
2013-05-16

METHOD AND DEVICE FOR HARVESTING ENERGY FROM FLUID FLOW

#85
20130099500
2013-04-25

Downhole apparatus for electrical power generation from shaft flexure

#86
20130020806
2013-01-24

Apparatus for generating energy from a fluid flow induced movement of a surface structure relative to an opening to a cavity in a frame

#87
20120299446
2012-11-29

Autonomous power generation unit for auxiliary system on an airborne platform

#88
20120285596
2012-11-15

Self-reinflating tire

#89
20120240672
2012-09-27

MINIATURIZED ENERGY GENERATION SYSTEM

#90
20120230021
2012-09-13

Adaptive hydrokinetic energy harvesting system

#91
20120228876
2012-09-13

Power generator for booster amplifier systems

#92
20120228875
2012-09-13

Systems and methods of harvesting energy in a wellbore

#93
20120211995
2012-08-23

Hoses principally for automatic swimming pool cleaners

#94
20120175880
2012-07-12

Mechanisms for creating undulating motion, such as for propulsion, and for harnessing the energy of moving fluid

#95
20120094241
2012-04-19

Propellant flow actuated piezoelectric igniter for combustion engines

#96
20120086310
2012-04-12

Fluid power generation system having a generator with an electrical-charge-producing material

#97
20120039736
2012-02-16

Pneumatic motor unit with integrated voltage generating means

#98
20120038250
2012-02-16

Wind energy generator using piezoelectric material and auxiliary mechanism thereof

#99
20120027620
2012-02-02

FORCED VIBRATION PIEZO GENERATOR AND PIEZO ACTUATOR

#100
20120007469
2012-01-12

METHOD AND DEVICE FOR VIBRATION HARVESTING VIA GASFLOW

#101
20110309723
2011-12-22

Bladeless wind power generator

#102
20110298215
2011-12-08

NEAR SHORE WEC SYSTEM

#103
20110291527
2011-12-01

Fluid current energy capture apparatus and method

#104
20110270043
2011-11-03

Air movement energy harvesting with wireless sensors

#105
20110252880
2011-10-20

Power generator, fluid sensor, and fluid sensor net

#106
20110235277
2011-09-29

Heat pipe capable of transforming dynamic energy into electric energy and related heat-dissipating module

#107
20110215671
2011-09-08

Moving fluid energy conversion device

#108
20100308592
2010-12-09

ENERGY CONVERTER WITH TRANSDUCERS FOR CONVERTING FLUID-INDUCED MOVEMENTS OR STRESS TO ELECTRICITY

#109
20100176692
2010-07-15

Autonomous power generation unit for auxiliary system on an airborne platform

#110
20100171394
2010-07-08

ENERGY HARVESTING FOR IMPLANTED MEDICAL DEVICES

#111
20100164231
2010-07-01

Aerodynamic vibration power-generation device

#112
20100084871
2010-04-08

Pliant mechanisms for extracting power from moving fluid

#113
20100078941
2010-04-01

Pliant or compliant elements for harnessing the forces of moving fluid to transport fluid or generate electricity

#114
20100076714
2010-03-25

Maximum information capture from energy constrained sensor nodes

#115
20100045036
2010-02-25

Pliant mechanisms for extracting power from moving fluid

#116
20100026003
2010-02-04

Pliant mechanisms for extracting power from moving fluid

#117
20100019498
2010-01-28

Wave energy converter

#118
20090206803
2009-08-20

Apparatus and method for harvesting energy for wireless fluid stream sensors

#119
20090167114
2009-07-02

Forced vibration piezo generator and piezo actuator

#120
20090146534
2009-06-11

Piezoelectric Generator

#121
20090140604
2009-06-04

Harvesting energy from flowing fluid

#122
20090121489
2009-05-14

Energy converter, flag type energy converter

#123
20080309196
2008-12-18

Electrical generator

#124
20080277941
2008-11-13

Generation of Electrical Power From Fluid Flows

#125
20080173345
2008-07-24

ELECTRICAL ENERGY GENERATING DEVICE

#126
20070176430
2007-08-02

Fluid Powered Oscillator

#127
20060087201
2006-04-27

Methods and apparatus for generating power from vehicles

#128
20060012264
2006-01-19

Electrical energy generator device with micro-fan array

#129
20050230973
2005-10-20

Vibration based power generator

#130
20050225213
2005-10-13

Piezoelectric micro-transducers, methods of use and manufacturing methods for same

#131
20050134047
2005-06-23

Pressurized gas to electrical energy conversion for low-power field devices

#132
17340154
2024-10-29

Electric power generator for a projectile moving through the air

#133
16397477
2020-01-07

Generation of electric power using wave motion, wind energy and solar energy

#134
16262419
2022-03-22

Compressed gas energy harvesting system

#135
15412680
2019-07-16

Generator employing piezolectric and resonating elements with synchronized heat delivery

#136
14594035
2019-05-07

Micro-systems including micro-windmills and methods of forming micro-systems including micro-windmills