ClassID:

29790

B01D53/965 - CPC Classification

Classification description:

Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,; Chemical or biological purification of waste gases; Regeneration, reactivation or recycling of reactants including an electrochemical process step

Recent Application in this class:
#1
20260151726
2026-06-04

CARBON DIOXIDE CAPTURE SYSTEM WITH pH CONTROL FUNCTION

#2
20260145134
2026-05-28

ATMOSPHERIC CARBON DIOXIDE CAPTURE SYSTEM

#3
20260145129
2026-05-28

CARBON DIOXIDE CAPTURE AGENT AND CARBON DIOXIDE CAPTURE AND REDUCTION SYSTEM USING THE SAME

#4
20260138089
2026-05-21

SPENT CAUSTIC TREATMENT USING AN ELECTROCHEMICAL ROUTE

#5
20260131283
2026-05-14

CRYSTALLIZER DEVICES AND RELATED SYSTEMS AND METHODS FOR DIRECT AIR CAPTURE OF CO2

#6
20260115657
2026-04-30

CARBON DIOXIDE CAPTURE USING DIFFERENT GAS INPUT STREAMS

#7
20260042063
2026-02-12

ELECTROCHEMICAL SYSTEMS FOR CAPTURE OF ACID GASES

#8
20260042062
2026-02-12

PLANT AND METHOD FOR THE PURIFICATION OF FUMES AND RECOVERY OF SECONDARY RAW MATERIAL

#9
20250382710
2025-12-18

LOW VOLTAGE ELECTROLYZER AND METHODS OF USING THEREOF

#10
20250375731
2025-12-11

CARBON DIOXIDE CAPTURE SYSTEMS, DEVICES, AND METHODS

#11
20250325939
2025-10-23

DEVICES, SYSTEMS, AND METHODS FOR CAPTURING AND PRODUCING CARBON DIOXIDE

#12
20250319434
2025-10-16

CARBON DIOXIDE-SEPARATING APPARATUS AND CARBON DIOXIDE CAPTURE AND STORAGE SYSTEM

#13
20250296047
2025-09-25

CARBON DIOXIDE PROCESS APPARATUS, CARBON DIOXIDE PROCESS METHOD, AND MANUFACTURING METHOD OF CARBON COMPOUND

#14
20250282633
2025-09-11

SEQUENTIAL HYDROMETALURGICAL RECOVERY OF METAL VALUES WITH SEQUESTERED CARBON

#15
20250281878
2025-09-11

PROCESS FOR PRODUCING A CARBON PRODUCT AND CARBON FIBERS THROUGH A CARBON NEUTRAL OR CARBON NEGATIVE PROCESS

#16
20250235820
2025-07-24

Carbon Capture Adapter

#17
20250229228
2025-07-17

ELECTROCHEMICAL DIRECT AIR CAPTURE OF CO2 USING REDOX-ACTIVE TEXTILES

#18
20250214038
2025-07-03

CARBON-CARBON (C/C) CHEMICAL VAPOR INFILTRATION (CVI) SYSTEM FOR MANUFACTURING C/C BRAKES WITH NEAR ZERO CARBON EMISSION

#19
20250205644
2025-06-26

METHOD FOR INCREASED CARBON CAPTURE IN AN ELECTROLYTIC PROCESS

#20
20250197263
2025-06-19

A method for purifying sulphate containing wastewater and recovering sulphur and hydrogen

#21
20250188626
2025-06-12

CARBON DIOXIDE CAPTURE AND UTILIZATION AS A CLEAN FEEDSTOCK

#22
20250170524
2025-05-29

SYSTEM, APPARATUS, AND METHOD FOR ALKALINE EARTH METAL HYDROXIDE LOOPING FOR CARBON DIOXIDE REMOVAL FROM AIR

#23
20250170518
2025-05-29

METHOD OF PRODUCING CARBON DIOXIDE FROM A GAS SCRUBBING PROCESS

#24
20250144563
2025-05-08

SYSTEM AND METHOD FOR CAPTURING CARBON DIOXIDE FROM A HUMIDITY ADJUSTED AIR STREAM

#25
20250144562
2025-05-08

ELECTROCHEMICAL CO2 CAPTURE WITH AIR STABLE REDOX SPECIES

#26
20250137153
2025-05-01

HYDROGEN GENERATION AND CARBON DIOXIDE STORAGE SYSTEM WITH INCREASED PROCESSING CAPACITY OF CARBON DIOXIDE

#27
20250128208
2025-04-24

ALKALINE CATION ENRICHMENT AND WATER ELECTROLYSIS TO PROVIDE CO2 MINERALIZATION AND GLOBAL-SCALE CARBON MANAGEMENT

#28
20250128204
2025-04-24

REDUCED REAGENT REGENERATION ENERGY FOR CARBON DIOXIDE CAPTURE WITH BIPOLAR MEMBRANE ELECTRODIALYSIS, SYSTEMS AND RELATED METHODS

#29
20250121325
2025-04-17

ELECTROCHEMICAL CAPTURE OF CARBON DIOXIDE FROM AIR WITH ELECTRICITY STORAGE

#30
20250108330
2025-04-03

ELECTROCHEMICAL SYSTEM FOR CARBON DIOXIDE CAPTURE

#31
20250065268
2025-02-27

Method And Apparatus For Removing A Target Substance From A Gas

#32
20250050273
2025-02-13

SYSTEM AND METHOD FOR PRODUCTION OF SYNTHETIC FUEL THROUGH CO2 CAPTURE AND WATER SPLITTING

#33
20250041824
2025-02-06

CARBON DIOXIDE ADSORBENT AND CARBON DIOXIDE ADSORPTION-DESORPTION DEVICE

#34
20250032985
2025-01-30

SYSTEM AND METHOD FOR INTEGRATED CO2 CAPTURE AND HYDROGEN PRODUCTION

#35
20250018341
2025-01-16

METHOD AND SYSTEM FOR CAPTURING AND UTILIZING CARBON DIOXIDE

#36
20250018340
2025-01-16

METHOD AND SYSTEM FOR CAPTURING AND PURIFYING CARBON DIOXIDE

#37
20250018339
2025-01-16

METHOD AND APPARATUS FOR CARBON CAPTURE COUPLED HYDROGEN PRODUCTION

#38
20250018338
2025-01-16

Carbon Dioxide Capture Method for Coupled Staged Electrolysis/Pyrolysis Hydrogen Production

#39
20250010241
2025-01-09

CO2 GAS REMOVAL DEVICE AND CO2 GAS ABSORBENT PURIFICATION DEVICE USED THEREIN

#40
20240424446
2024-12-26

Method of Capturing a Target Species From a Gas

#41
20240342649
2024-10-17

SEAWATER ELECTROLYSIS ENABLES SCALABLE ATMOSPHERIC CO2 MINERALIZATION

#42
20240325976
2024-10-03

Electrochemical Metal Removal

#43
20240316490
2024-09-26

CAPTURING CARBON DIOXIDE

#44
20240269610
2024-08-15

GAS ADSORPTION SYSTEM AND METHOD OF OPERATING GAS ADSORPTION SYSTEM

#45
20240252984
2024-08-01

ATMOSPHERIC CARBON DIOXIDE CAPTURE SYSTEM

#46
20240252983
2024-08-01

ATMOSPHERIC CARBON DIOXIDE CAPTURE SYSTEM

#47
20240238721
2024-07-18

SYSTEMS AND METHODS FOR DIRECT AIR CARBON DIOXIDE CAPTURE

#48
20240228419
2024-07-11

THE PRODUCTION OF FORMIC ACID OR FORMALDEHYDE FROM CARBON DIOXIDE

#49
20240123422
2024-04-18

Synthetic fuel production system and related techniques

#50
20240017211
2024-01-18

CARBON DIOXIDE RECOVERY SYSTEM

#51
20240017209
2024-01-18

COMPOSITE FOR ELECTROCHEMICAL GAS SEPARATION

#52
20240009623
2024-01-11

Method of capturing a target species from a gas

#53
20230390702
2023-12-07

CO2 CAPTURE PROCESS WITH ELECTROLYTIC REGENERATION

#54
20230390701
2023-12-07

Techniques to synthesize greenhouse gases

#55
20230338895
2023-10-26

CARBON DIOXIDE RECOVERY SYSTEM

#56
20230338893
2023-10-26

CARBON DIOXIDE RECOVERY SYSTEM

#57
20230302397
2023-09-28

Dual-Loop Solution-Based Carbon Capture System and Method

#58
20230294043
2023-09-21

METHOD AND SYSTEM FOR CAPTURING CARBON DIOXIDE FROM THE AIR

#59
20230266027
2023-08-24

AN AIR PURIFIER DETECTING ERRORS

#60
20230264141
2023-08-24

METHOD FOR THE BONDING, TRANSPORT, REACTION ACTIVATION, CONVERSION, STORAGE AND RELEASE OF WATER-SOLUBLE GASES

#61
20230249133
2023-08-10

ELECTROCHEMICAL HYDROXIDE AND CARBON DIOXIDE REGENERATION METHOD AND APPARATUS

#62
20230226487
2023-07-20

ALKALI-BASED REMOVAL OF CHEMICAL MOIETIES FROM GAS STREAMS WITH CHEMICAL CO-GENERATION

#63
20230201764
2023-06-29

DEVICE AND METHOD BASED ON ELECTRICALLY-DRIVEN CHEMICAL CARBON PUMP COMBINED CYCLE FOR DILUTED CARBON SOURCE

#64
20230191322
2023-06-22

Systems and methods for direct air carbon dioxide capture

#65
20230182075
2023-06-15

TWO-STAGE ELECTRODIALYSIS SYSTEM AND METHOD FOR RECOVERING WASTE CO2-LEAN AMINE SOLVENT

#66
20230151501
2023-05-18

ELECTROLYTIC CONVERSION OF CARBON-CONTAINING IONS USING POROUS METAL ELECTRODES

#67
20230057916
2023-02-23

SYSTEM OF UTILIZING CARBON DIOXIDE

#68
20230019754
2023-01-19

Alkaline cation enrichment and water electrolysis to provide COmineralization and global-scale carbon management

#69
20220331740
2022-10-20

Electrochemically enhanced process for next generation carbon dioxide capture

#70
20220274061
2022-09-01

Carbon dioxide treatment apparatus, carbon dioxide treatment method, and method of producing carbon compound

#71
20220161222
2022-05-26

Synthetic fuel production system and related techniques

#72
20220118406
2022-04-21

System and method for production of synthetic fuel through COcapture and water splitting

#73
20220105463
2022-04-07

Alkali-based removal of chemical moieties from gas streams with chemical co-generation

#74
20220040639
2022-02-10

Alkaline cation enrichment and water electrolysis to provide COmineralization and global-scale carbon management

#75
20210308623
2021-10-07

METHOD FOR FIXING CARBON DIOXIDE, METHOD FOR PRODUCING FIXED CARBON DIOXIDE, AND CARBON DIOXIDE FIXATION APPARATUS

#76
20210123147
2021-04-29

PROCESS AND SYSTEM FOR PRODUCING CARBON MONOXIDE AND DIHYDROGEN FROM A CO2-CONTAINING GAS

#77
20210001270
2021-01-07

Alkali-based removal of chemical moieties from gas streams with chemical co-generation

#78
20200376429
2020-12-03

Method for purifying a carrier gas

#79
20200353412
2020-11-12

Scrubber, exhaust gas purification system comprising scrubber, and air purification method

#80
20200338498
2020-10-29

Energy efficient removal of CO2 from air by integrating with H2 generation

#81
20200197857
2020-06-25

Systems and processes for removal and reduction of NOand CO gases from flue/exhaust gas streams

#82
20200095610
2020-03-26

Process to prepare elemental sulphur

#83
20200063054
2020-02-27

Removal of sulfur compounds from gas streams via precipitation

#84
20190240621
2019-08-08

Energy efficient removal of COfrom air by integrating with Hgeneration

#85
20190193025
2019-06-27

Acid component removal device, acid component removal method, and acid gas removal device

#86
20190099711
2019-04-04

Methods and systems for removing COfrom a feed gas

#87
20190027771
2019-01-24

ACID GAS REGENERABLE BATTERY

#88
20180345210
2018-12-06

Deodorizing apparatus and deodorizing method

#89
20180222778
2018-08-09

Method and system for applying superimposed time-varying frequency electromagnetic wave to water to effect various treatment functions

#90
20180221821
2018-08-09

Method and system for applying superimposed time-varying frequency electromagnetic wave for removal of SO, COand NOfrom flue gases

#91
20180202056
2018-07-19

Method and apparatus for preparing reduction product of carbon dioxide by electrochemically reducing carbon dioxide

#92
20180201526
2018-07-19

Method and system for applying superimposed time-varying frequency electromagnetic wave for marine ballast water bio-fouling control

#93
20180104641
2018-04-19

Method and device for the desulphurisation of a gas flow

#94
20170354926
2017-12-14

INTEGRATED DESULFURIZATION AND CARBON DIOXIDE CAPTURE SYSTEM FOR FLUE GASES

#95
20170328239
2017-11-16

Power plant

#96
20170326497
2017-11-16

Gas capture apparatus and method

#97
20170256812
2017-09-07

Carbon dioxide trapping device and method capable of producing electricity

#98
20170211445
2017-07-27

Control of hydrocarbon injection rate in an exhaust gas assembly

#99
20170072361
2017-03-16

Carbon dioxide collecting apparatus and method using independent power generation means

#100
20170001144
2017-01-05

SCRUBBER, EXHAUST GAS PURIFICATION SYSTEM COMPRISING SCRUBBER, AND AIR PURIFICATION METHOD

#101
20160310892
2016-10-27

Low-emission fired heater

#102
20160288050
2016-10-06

Method and apparatus for reagent recovery in a flue gas processing system

#103
20160114290
2016-04-28

Methods and systems for carrying out a pH-influenced chemical and/or biological reaction

#104
20160107118
2016-04-21

Water recycling in a COremoval process and system

#105
20150209724
2015-07-30

HEAT-STABLE SALT REMOVING SYSTEM, CARBON DIOXIDE RECOVERING SYSTEM AND HEAT-STABLE SALT REMOVING METHOD

#106
20140271434
2014-09-18

Capture and release of carbon dioxide

#107
20140154143
2014-06-05

Method and an apparatus for performing an energy efficient desulphurization and decarbonisation of a flue gas

#108
20140060323
2014-03-06

Systems and methods for exhaust gas cleaning and/or ballast water treatment

#109
20130272938
2013-10-17

Method and an apparatus for performing an energy efficient desulphurization and decarbonisation of a flue gas

#110
20130266498
2013-10-10

Systems and methods for removing components of a gas mixture

#111
20130186775
2013-07-25

Separation and/or sequestration apparatus and methods

#112
20130180400
2013-07-18

Carbon dioxide gas fixation method and carbon dioxide gas fixation apparatus

#113
20130058857
2013-03-07

Methods and systems for carrying out a pH-influenced chemical and/or biological reaction

#114
20130008800
2013-01-10

Carbon dioxide capture and conversion to organic products

#115
20120275987
2012-11-01

SYSTEMS AND METHODS FOR CARBON SEQUESTRATION OF SYNTHESIS GAS

#116
20120148465
2012-06-14

Method and system for hydrogen sulfide removal

#117
20110192729
2011-08-11

Methods and apparatus for controlling catalytic processes, including catalyst regeneration and soot elimination

#118
20110186441
2011-08-04

ELECTROLYTIC RECOVERY OF RETAINED CARBON DIOXIDE

#119
20110091366
2011-04-21

NEUTRALIZATION OF ACID AND PRODUCTION OF CARBONATE-CONTAINING COMPOSITIONS

#120
20110020208
2011-01-27

Carbon ion pump for removal of carbon dioxide from combustion gas and other gas mixtures

#121
20100260653
2010-10-14

Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals

#122
20090188164
2009-07-30

METHOD AND SYSTEM FOR HYDROGEN SULFIDE REMOVAL

#123
20090127127
2009-05-21

Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals

#124
20080044333
2008-02-21

Method and apparatus for NOx and Hg removal

#125
20070169625
2007-07-26

Carbon ion pump for removal of carbon dioxide from combustion gas and other gas mixtures

#126
20070110652
2007-05-17

Apparatus and method for removing ozone

#127
20070095673
2007-05-03

Methods and apparatus for controlling catalytic processes, including catalyst regeneration and soot elimination

#128
20060254930
2006-11-16

Process for treating a sulfur-containing spent caustic refinery stream using a membrane electrolyzer powered by a fuel cell

#129
20060185985
2006-08-24

Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals

#130
20060102468
2006-05-18

Photolytic oxygenator with carbon dioxide and/or hydrogen separation and fixation

#131
20060051274
2006-03-09

Removal of carbon dioxide from air

#132
20060021506
2006-02-02

Method and apparatus for NO and Hg removal

#133
18770527
2024-10-22

Modular membrane isolation carbon desorption device, carbon capture system, method and application

#134
18584503
2024-11-26

Direct air capture of carbon dioxide

#135
17967261
2023-09-26

Techniques to synthesize greenhouse gases

#136
17331040
2022-01-11

COcapture process with electrolytic regeneration