ClassID:

138809

F02B2043/106 - CPC Classification

Classification description:

Engines characterised by operating on gaseous fuels; Plants including such engines; Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen Hydrogen obtained by electrolysis

Recent Application in this class:
#1
20260104003
2026-04-16

METHOD FOR REDUCING EMISSIONS FROM A HYDROGEN COMBUSTION ENGINE

#2
20250305442
2025-10-02

METHOD AND SYSTEM FOR DIRECT HYDROGEN FUEL INJECTION OF COMBUSTION ENGINE

#3
20250264050
2025-08-21

HYDROGEN STORAGE POWER PLANT, AND METHOD FOR OPERATING SAME

#4
20250035185
2025-01-30

MECHANICAL RENEWABLE GREEN ENERGY PRODUCTION

#5
20240309801
2024-09-19

Explosion Safe Electrolysis Unit

#6
20240301816
2024-09-12

Electrolysis System Having In Situ Enhancement Gas Storage

#7
20240301815
2024-09-12

Ultra Low Enhancement Gas Injection

#8
20240110527
2024-04-04

METHODS TO REDUCE COMBUSTION TIME AND TEMPERATURE IN AN ENGINE

#9
20240093637
2024-03-21

ROLLOVER-SAFE ELECTROLYSIS UNIT FOR VEHICLES

#10
20240077016
2024-03-07

SYSTEMS FOR HHO GAS SECOND FUEL DISTRIBUTION AND CONTROL

#11
20240018897
2024-01-18

Ammonia-hydrogen blended fuel control system based on reactivity regulation

#12
20230287822
2023-09-14

Exhaust treatment system for dual fuel engines

#13
20230287287
2023-09-14

Catalytic Biogas Combined Heat and Power Generator

#14
20230261505
2023-08-17

Mechanical renewable green energy production

#15
20230167762
2023-06-01

Internal combustion engine and a method for operating an internal combustion engine

#16
20230114536
2023-04-13

Gaseous fuel generator equipment hydrogen-oxygen applied to internal combustion engines

#17
20230084345
2023-03-16

Generation and regulation of HHO gas

#18
20230062236
2023-03-02

HHO Precision Injection System

#19
20230052188
2023-02-16

Onboard HHO Gas Generation System for Heavy Duty Trucks

#20
20230045911
2023-02-16

Gas turbine engine comprising liquid hydrogen evaporators and heaters

#21
20220403773
2022-12-22

Method and apparatus for storing energy

#22
20220402354
2022-12-22

Hybrid plug-in battery and hydrogen fuel engine vehicle with swappable hydrogen tanks and method for modular hydrogen storage and transportation and distribution

#23
20220341361
2022-10-27

Explosion safe electrolysis unit

#24
20220260009
2022-08-18

Catalytic Biogas Combined Heat and Power Generator

#25
20220106929
2022-04-07

Hydrogen cell

#26
20220097817
2022-03-31

Use of hydrogen and liquid natural gas hybrid fuel in marine applications to reduce carbon footprint

#27
20210388757
2021-12-16

AIR ENERGY STORAGE WITH INTERNAL COMBUSTION ENGINES

#28
20210246825
2021-08-12

Ship drive system and retrofitting method for a ship drive system

#29
20210215073
2021-07-15

Mitigating particulate matter emission in engine exhaust

#30
20210199046
2021-07-01

Component Description of the Infinite Water Electrolysis Combustion Engine (I.W.E.C.E)

#31
20210148435
2021-05-20

Mechanical renewable green energy production

#32
20210040884
2021-02-11

Ship drive system and retrofitting method for a ship drive system

#33
20200300159
2020-09-24

Closed cycle combustion system for endothermic engines

#34
20200248656
2020-08-06

System and method of improving fuel efficiency in vehicles using HHO

#35
20200158031
2020-05-21

System and process for improving emission performance in engines

#36
20200131982
2020-04-30

Two-stroke internal combustion engine

#37
20200095924
2020-03-26

Method and system for improving fuel economy and reducing emissions of internal combustion engines

#38
20200080521
2020-03-12

Propulsion system, and method for operating a propulsion system

#39
20200027570
2020-01-23

In space startup method for nuclear fusion rocket engines

#40
20200017982
2020-01-16

Oxyhydrogen gas supply equipment

#41
20190383212
2019-12-19

Catalytic biogas combined heat and power generator

#42
20190345871
2019-11-14

Free-piston linear apparatus

#43
20190264609
2019-08-29

METHOD OF CLEANING AN INTERNAL COMBUSTION ENGINE AND SYSTEM THEREFOR

#44
20190234348
2019-08-01

Ultra Low HHO Injection

#45
20190234298
2019-08-01

Temperature control for HHO injection gas

#46
20190234297
2019-08-01

Onboard HHO gas generation system for heavy duty trucks

#47
20190233956
2019-08-01

Rollover safe electrolysis unit for vehicles

#48
20190233951
2019-08-01

Explosion safe electrolysis unit

#49
20190226394
2019-07-25

Method and system for improving fuel economy and reducing emissions of internal combustion engines

#50
20190162124
2019-05-30

Drive system and method for operating a drive system

#51
20190145310
2019-05-16

Catalytic biogas combined heat and power generator

#52
20190136799
2019-05-09

System and method of improving fuel efficiency in vehicles using HHO

#53
20190085793
2019-03-21

Method and apparatus for scalable, high volume accelerant gas (AG) generation for high capacity internal combustion engines (ICE)

#54
20190017448
2019-01-17

System and process for improving emission performance in engines

#55
20190010621
2019-01-10

Electrolytic cell for internal combustion engine

#56
20180363595
2018-12-20

Apparatus for Supplying Electrical Power

#57
20180320586
2018-11-08

Onboard Graphene Electrolysis System

#58
20180320585
2018-11-08

Electrolysis System Having In Situ HHO Storage

#59
20180320584
2018-11-08

Systems for HHO gas second fuel distribution and control

#60
20180298813
2018-10-18

Method for operating an internal combustion engine with a gas mixture supplied to the combustion air and produced by water electrolysis, and assembly and electrolysis device for carrying out said method

#61
20180290112
2018-10-11

Fuel enrichment method and device

#62
20180252105
2018-09-06

Hydrogen engine and the way of hydrogen fuel production for its power supply

#63
20180216579
2018-08-02

Ship propulsion system, and method for operating a ship propulsion system

#64
20180216543
2018-08-02

Vehicle drive system, and method for operating a vehicle drive system

#65
20180179994
2018-06-28

Device for producing hydrogen by reforming reaction and waste heat

#66
20170335760
2017-11-23

HYDROGEN GENERATOR AND CONTROL FOR INTERNAL-COMBUSTION VEHICLE

#67
20170284287
2017-10-05

Electro-Hydrogen Driving Unit

#68
20170254259
2017-09-07

Method of generating and distributing a second fuel for an internal combustion engine

#69
20170204793
2017-07-20

Combustion Engine Air Supply

#70
20170159618
2017-06-08

Hydrogen on Demand Electrolysis Fuel Cell System

#71
20170159556
2017-06-08

PORTABLE HYDROGEN SUPPLEMENTAL SYSTEM AND METHOD FOR LOWERING PARTICULATE MATTER AND OTHER EMISSIONS IN DIESEL ENGINES AT IDLE

#72
20170122195
2017-05-04

ENGINE GROUP COMPRISING A MIXED FUEL ENGINE, AND FUEL SUPPLYING METHOD THEROF

#73
20170107899
2017-04-20

Hydrogen generator and control for internal-combustion vehicle

#74
20170051665
2017-02-23

Devices, Systems and Methods for Closed Loop Energy Production

#75
20170037815
2017-02-09

System and method of improving fuel efficiency in vehicles using HHO

#76
20160319735
2016-11-03

CHEMICAL FUEL CONDITIONING AND ACTIVATION

#77
20160244887
2016-08-25

Hydrolysis system and method for a vehicle engine

#78
20160169163
2016-06-16

Hydrogen motor vehicle without hydrogen on board

#79
20160153355
2016-06-02

Micro-cell using the process of electrolysis and air ionization with milli-amps of electricity and airflow to create a plasma that is drawn into the combustion chamber of an engine via a vacuum

#80
20160138496
2016-05-19

Methods to reduce combustion time and temperature in an engine

#81
20160131024
2016-05-12

Engine system

#82
20160084157
2016-03-24

WATER-ROTOR-INTERNAL-COMBUSTION ENGINE (WRICE)

#83
20160032465
2016-02-04

PRESSURE INDUCED CYLINDRICAL GAS GENERATOR SYSTEM FOR THE ELECTROLYSIS OF AMMONIUM HYDROXIDE

#84
20160025000
2016-01-28

Method and system for using the by-product of electrolysis

#85
20150308333
2015-10-29

ANCILLARY DEVICE FOR ENHANCING ENERGY SAVING AND CARBON REDUCTION EFFICIENCY OF ENGINE

#86
20150226113
2015-08-13

Method and system for improving fuel economy and reducing emissions of internal combustion engines

#87
20150101926
2015-04-16

Electrolytic Cell

#88
20150089919
2015-04-02

SYSTEM AND METHOD FOR ECOLOGICALLY GENERATING AND STORING ELECTRICITY

#89
20150059664
2015-03-05

System and Method for Generating Electricity from Water

#90
20150055740
2015-02-26

In space startup method for nuclear fusion rocket engines

#91
20150040844
2015-02-12

ELECTRONIC CONTROL UNIT AND METHOD FOR REGULATING THE DISBURSEMENT OF HYDROGEN AND OXYGEN

#92
20150040843
2015-02-12

WATER VAPOR MANAGEMENT AND CONTROL METHODOLOGY SYSTEM FOR SINGLE AND MULTIPLE HYDROGEN FUEL CELLS USED FOR COMBUSTION AUGMENTATION IN INTERNAL COMBUSTION ENGINES AND METHOD

#93
20150020764
2015-01-22

Ignition system for low grade synthesis gas at high compression

#94
20140367272
2014-12-18

Hydrolysis system and method for a vehicle engine

#95
20140352635
2014-12-04

APPARATUS FOR THE GENERATION OF HYDROGEN FOR INTERNAL COMBUSTION ENGINES

#96
20140290595
2014-10-02

Portable hydrogen supplemental system and method for lowering particulate matter and other emissions in diesel engines at idle

#97
20140230777
2014-08-21

Process for powering a jet or rocket engine with water by simultaneously separating hydrogen from oxygen and igniting the hydrogen in the combustion/compression chamber

#98
20140102383
2014-04-17

Internal combustion engine enhancement device and method

#99
20130255596
2013-10-03

Hydrogen feed method and systems for engines

#100
20130220240
2013-08-29

Oxygen-rich plasma generators for boosting internal combustion engines

#101
20130015077
2013-01-17

Hydrogen Generator Designed For Use With Gas And Diesel Engines

#102
20120298054
2012-11-29

HYDROXY GAS PRODUCTION SYSTEM WITH A DIGITAL CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

#103
20120227684
2012-09-13

HYDROGEN/OXYGEN GAS GENERATING APPARATUS AND INTERNAL COMBUSTION ENGINE SYSTEM HAVING THE SAME

#104
20120186542
2012-07-26

Process for powering an engine with water by simultaneously separating hydrogen from oxygen and igniting the hydrogen in the compression/combustion chamber

#105
20120118727
2012-05-17

Combustion engine air supply

#106
20120067325
2012-03-22

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE IN ACCORDANCE WITH SAID METHOD

#107
20120067304
2012-03-22

Economical hybrid fuel

#108
20120031352
2012-02-09

Internal combustion engine enhancement device and method

#109
20120024242
2012-02-02

Protecting Passengers and Internal Combustion Engines from a Malfunctioning Hydrogen/Oxygen Generator Apparatus

#110
20110220039
2011-09-15

HYDROLYSIS SYSTEM TO PRODUCE HYDROGEN-OXYGEN GAS AS A FUEL ADDITIVE FOR INTERNAL COMBUSTION ENGINES

#111
20110210008
2011-09-01

HYDROGEN CARBURETOR FOR GENERATING HYDROGEN TO RUN AN INTERNAL COMBUSTION ENGINE AND METHOD THEREOF

#112
20110209993
2011-09-01

DUAL CYLINDER HYDROGEN GENERATOR SYSTEM

#113
20110191008
2011-08-04

SUPPLEMENTARY FUEL SYSTEM FOR DELIVERY OF HYDROGEN GAS TO AN ENGINE

#114
20110185990
2011-08-04

SYSTEM AND METHOD FOR IMPROVING COMBUSTION USING AN ELECTROLYSIS FUEL CELL

#115
20110174242
2011-07-21

CYLINDRICAL HYDROGEN FUEL GENERATOR HAVING TUBULAR CELLS WITH MICROSCOPIC INDENTATIONS

#116
20110174241
2011-07-21

Cylindrical hydrogen fuel generator having passive tubular cells

#117
20110139631
2011-06-16

GAS GENERATION AND MANAGEMENT SYSTEM

#118
20110139097
2011-06-16

GAS GENERATION AND MANAGEMENT SYSTEM

#119
20110072813
2011-03-31

Vehicle power generation system using exhaust gas

#120
20100300381
2010-12-02

Electrolytic reactor and related methods for supplementing the air intake of an internal combustion engine

#121
20100288212
2010-11-18

On demand system for using water (HHO) as a sole fuel

#122
20100282600
2010-11-11

Hydrogen generator designed for use with gas and diesel engines

#123
20100175638
2010-07-15

Water Combustion Technology - The Haase Cycle

#124
20100163407
2010-07-01

Electrolysis type electrolyzer for production of hydrogen and oxygen for the enhancement of ignition in a hydrocarbon fuel and/or gas combustion device

#125
20100162969
2010-07-01

Heat-pipe electric power generating device and hydrogen/oxygen gas generating apparatus and internal combustion engine system having the same

#126
20100132661
2010-06-03

Method of using lean fuel-air mixtures at all operating regimes of a spark ignition engine

#127
20090320807
2009-12-31

System and Method for Hydrogen-Assisted Cold Starting of An Engine

#128
20090301407
2009-12-10

Electrolyte Delivery System

#129
20090217641
2009-09-03

Combustion System Comprising an Electrolyser

#130
20090139469
2009-06-04

Electrolyte delivery system and method

#131
20080257751
2008-10-23

Enhanced device for generating hydrogen for use in internal combustion engines

#132
20080102329
2008-05-01

Material neutral power generation

#133
20070246351
2007-10-25

Device for generating hydrogen for use in internal combustion engines

#134
20070169723
2007-07-26

Energy conversion system for hydrogen generation and uses thereof

#135
20070074680
2007-04-05

Electrolysis cell and internal combustion engine kit comprising the same

#136
20070012264
2007-01-18

Water fuel convertor

#137
20060180101
2006-08-17

Hydrogen-oxygen production device

#138
20050199509
2005-09-15

Electrolysis cell and internal combustion engine kit comprising the same

#139
20050019230
2005-01-27

Plasmatron-catalyst system

#140
16557214
2020-08-04

In-water refueling system for unmanned undersea vehicles with fuel cell propulsion