ClassID:

86256

C02F1/4676 - CPC Classification

Classification description:

Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection by electroreduction

Sub-classes:
Recent Application in this class:
#1
20260138905
2026-05-21

Methods and Systems of Iodine Capture from Aqueous Solutions

#2
20260132061
2026-05-14

WATER-DECONTAMINATION CELL USING ALTERNATING LAYERS OF ELECTRODES

#3
20260116790
2026-04-30

APPARATUS, SYSTEM AND METHODS FOR WATER PURIFICATION WITH ZERO LIQUID DISCHARGE AND RESOURCE RECOVERY

#4
20260042687
2026-02-12

ELECTROLYSIS WATER FILTER SYSTEM

#5
20250346506
2025-11-13

Membrane-Mediated Electro-Oxidation-Reduction Deep Water Treatment Device and its Operation Method Thereof

#6
20250326671
2025-10-23

ELECTROCHEMICAL WATER TREATMENT METHOD USING SELECTIVE ION SEPARATION

#7
20250282656
2025-09-11

PIEZOELECTRIC SYSTEM AND METHOD FOR PER- AND POLY-FLUOROALKYL SUBSTANCE DEGRADATION

#8
20250263322
2025-08-21

Methods and Systems of PFAS Destruction using UV Irradiation at 222 Nanometers

#9
20250250186
2025-08-07

PLASMA-ASSISTED WATER TREATMENT SYSTEM FOR ELIMINATION OF PERSISTENT ORGANIC AND INORGANIC WATER CONTAMINANTS

#10
20250236541
2025-07-24

Methods and Systems of Iodine Capture from Aqueous Solutions

#11
20250178933
2025-06-05

ELECTROCHEMICAL CARBON REMOVAL FROM WATER VIA CARBON MINERALIZATION

#12
20250162907
2025-05-22

A DEVICE FOR REDUCING THE REDOX POTENTIAL VALUE IN COLD POTABLE WATER

#13
20250162906
2025-05-22

ELECTRODE FOR NITRATE REDUCTION

#14
20250019286
2025-01-16

Methods and Systems of Nitrate Removal in Aqueous Systems for Improved PFAS Destruction

#15
20250019285
2025-01-16

Methods and systems of PFAS destruction using UV irradiation at 222 nanometers

#16
20250019268
2025-01-16

Methods and Systems of Photo-Electrochemical PFAS Destruction

#17
20250019266
2025-01-16

Methods and Systems for Recycling Materials During PFAS Destruction

#18
20250002377
2025-01-02

WASTEWATER TREATMENT SYSTEM AND METHOD USING REUSABLE TECHNOLOGIES

#19
20240368006
2024-11-07

APPARATUS, SYSTEMS, AND METHODS FOR TREATING PER- AND POLYFLUOROALKYL CONTAMINATED FLUIDS

#20
20240254017
2024-08-01

REDOX-ACTIVE COMPOSITE AND ELECTROCHEMICAL REACTIVE SEPARATION OF NITRATE TO AMMONIA

#21
20240228339
2024-07-11

ELECTROCHEMICAL MEMBRANE APPARATUS INCLUDING AN ELECTROCHEMICAL MEMBRANE REACTOR, AND RELATED METHODS

#22
20240116783
2024-04-11

ASSEMBLIES AND METHODS FOR TREATING POLLUTED WATER

#23
20240051854
2024-02-15

Electroreductive and Regenerative System

#24
20240043295
2024-02-08

METHOD OF PROCESSING LIQUID CONTAINING AMMONIA NITROGEN FROM SEMICONDUCTOR FABRICATION MACHINE

#25
20240043293
2024-02-08

Electrochemical Reduction Reactor, and System and Method Comprising Same

#26
20240043292
2024-02-08

ELECTROCHEMICAL DESTRUCTION OF PERFLUORO COMPOUNDS

#27
20230365444
2023-11-16

Apparatus and Methods for Nitrogen Reduction in Wastewater

#28
20230365442
2023-11-16

Electrified Membrane Flow-Cell Reactor For Concurrent Nitrate Reduction And Ammonia Production From Wastewater

#29
20230340677
2023-10-26

DEVICE AND METHODS FOR PRODUCTION OF AMMONIA AND NITRATES UNDER AMBIENT CONDITIONS

#30
20230312378
2023-10-05

Method for removing chlorinated hydrocarbons in groundwater through step-by-step electrocatalytic dechlorination degradation

#31
20230312377
2023-10-05

NON-MEMBRANE DEIONIZATION AND ION-CONCENTRATING APPARATUS AND NON-MEMBRANE DEIONIZATION AND ION-CONCENTRATING MODULE

#32
20230075397
2023-03-09

PHYSICAL WATER TREATMENT DEVICE

#33
20230074165
2023-03-09

Electrochemical Dechlorination of Chloraminated Water and Wastewater Effluent

#34
20230027866
2023-01-26

CAPACITIVE-FARADAIC AND PSEUDOCAPACITIVE-FARADAIC FUEL CELLS

#35
20220354075
2022-11-10

High flow Venturi nozzle, system, method of manufacture and method of use

#36
20220324729
2022-10-13

ELECTROCHEMICAL METHOD FOR OXIDATION OF ORGANIC COMPOUNDS IN AQUEOUS SOLUTIONS AND REDUCTION OF BY-PRODUCTS

#37
20220306497
2022-09-29

Electrochemical device for creation of pH gradients

#38
20220305244
2022-09-29

Multi-Functional Integrated Skin Beauty Device

#39
20220242752
2022-08-04

Modular photocatalytic system

#40
20220219998
2022-07-14

PREPARATION METHOD OF GRAPHENE-WRAPPED COBALT PRUSSIAN BLUE NANOCRYSTAL COMPOSITE MATERIAL AND METHOD OF PREPARING WORKING ELECTRODE USING THE SAME AND APPLICATION THEREOF

#41
20220081330
2022-03-17

REMOVAL OF MATERIALS FROM WATER

#42
20220073383
2022-03-10

System for removal of phosphorus and nitrogen from water

#43
20220073380
2022-03-10

FLOW-THROUGH ELECTROCHEMICAL REACTOR

#44
20220047412
2022-02-17

Beauty Device with Hydrogen Sterilization Water Spray and Temperature Stimulation Function

#45
20220033285
2022-02-03

Copper integrated electrode with convertible oxidation state and preparation method and application method thereof

#46
20220015882
2022-01-20

ORAL CLEANING APPARATUS

#47
20210387874
2021-12-16

HYBRID ELECTRODIALYSIS AND ELECTROLYSIS SYSTEMS AND PROCESSES

#48
20210363032
2021-11-25

Sour water treatment

#49
20210309544
2021-10-07

NITRATE REMOVAL FROM WATER BODIES USING ELECTROCATALYTIC HYDROGEN EVOLUTION AND CATALYTIC HYDROGENATION

#50
20210276891
2021-09-09

System and method for removing nitrate from water

#51
20210214246
2021-07-15

Processes and systems for treating sour water to remove sulfide compounds

#52
20210198123
2021-07-01

Flexible electrocatalytic membrane for removing nitrate from water, preparation method and use thereof

#53
20210188666
2021-06-24

Removal of materials from water

#54
20210179456
2021-06-17

Removal of phosphorus and nitrogen from water

#55
20210147264
2021-05-20

Water treatment device and water treatment method

#56
20210009445
2021-01-14

Apparatus for manufacturing hydrogen containing water

#57
20200369547
2020-11-26

Systems, methods and Apparatuses for Water Treatment

#58
20200359832
2020-11-19

Hydrogen water generator

#59
20200317544
2020-10-08

PURIFICATION UNIT AND PURIFICATION DEVICE

#60
20200317543
2020-10-08

PURIFICATION UNIT AND PURIFICATION DEVICE

#61
20200317541
2020-10-08

Apparatus for manufacturing hydrogen-containing water

#62
20200277207
2020-09-03

Hybrid system for water treatment, desalination, and chemical production

#63
20200165149
2020-05-28

Disc-type electrocatalytic water treatment device

#64
20200140297
2020-05-07

Channeled electrodes and method of making

#65
20200038926
2020-02-06

Compositions and methods for removing chlorinated hydrocarbons

#66
20190276341
2019-09-12

Electrolyzed water generation device

#67
20190194042
2019-06-27

Heating apparatus and water electrolysis system

#68
20190194040
2019-06-27

Reactors and methods for producing and recovering extracellular metal or metalloid nanoparticles

#69
20190092667
2019-03-28

Method and apparatus for selenium removal from high TDS wastewater

#70
20190092658
2019-03-28

TREATMENT OF WATER EFFLUENT

#71
20180354819
2018-12-13

Fuel Cell For Wastewater Treatment

#72
20180346353
2018-12-06

Electrolytic reduction module and water purification device

#73
20180339080
2018-11-29

COOLING APPARATUS FOR KILLING FUNGI ON DEW CONDENSATION PART BY MEANS OF HYDROGEN GENERATED BY ELECTROLYZING WATER CONDENSED AT DEW CONDENSATION PART OF COOLING APPARATUS

#74
20180257961
2018-09-13

In-situ delivery systems for reaction product abatement in electrochemical cells

#75
20180230028
2018-08-16

Z-scheme microbial photoelectrochemical system (MPS) for wastewater-to-chemical fuel conversion

#76
20180179646
2018-06-28

Method for producing hydrogen gas from aqueous hydrogen sulphide

#77
20180141835
2018-05-24

Water synchronic electrodenitrification process

#78
20180044805
2018-02-15

Materials with atomically dispersed chemical moieties

#79
20180009685
2018-01-11

Method and composition for reducing nitrates, nitrites, and/or hydroxylamine in water using a homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex

#80
20170362092
2017-12-21

Filtration system for pet water fountain

#81
20170241024
2017-08-24

Hydrogen water manufacturing system

#82
20170233272
2017-08-17

Method and apparatus for selenium removal from high TDS wastewater

#83
20170225976
2017-08-10

Liquid treatment apparatus

#84
20170225975
2017-08-10

Removal of phosphorus from sewage by electrode metal addition

#85
20170217800
2017-08-03

NITRATE REDUCTION METHOD, NITRATE REDUCTION CATALYST, NITRATE REDUCTION ELECTRODE, FUEL CELL, AND WATER TREATMENT APPARATUS

#86
20170129790
2017-05-11

Device for preparing drinking water by electrolysis

#87
20170081220
2017-03-23

Water treatment system having tubular modules

#88
20170073251
2017-03-16

Polymeric-metal composite electrode-based electrochemical device for generating oxidants

#89
20170050867
2017-02-23

HYDROGEN WATER GENERATOR

#90
20170036927
2017-02-09

Apparatus for generating functional water

#91
20160376173
2016-12-29

ELECTROCHEMICAL CELL FOR WATER TREATMENT

#92
20160257582
2016-09-08

Method for sludge-reduced electrocatalytic reduction-oxidation pretreatment of nitrotoluene production wastewater

#93
20160151525
2016-06-02

SYSTEM AND METHOD FOR TREATMENT OF PERISHABLE GOODS WITH HYDROGEN-RICH WATER

#94
20160076155
2016-03-17

Apparatus for preparing hydrogen water

#95
20160037793
2016-02-11

Production method for natural-extract beverage

#96
20160032467
2016-02-04

Hydrogen generating unit for producing hydrogen water

#97
20150360976
2015-12-17

METHOD OF MANUFACTURING HYDROGEN-CONTAINING WATER GENERATING ELECTRODE AND HYDROGEN-CONTAINING WATER GENERATING ELECTRODE

#98
20150291451
2015-10-15

ELECTROCHEMICAL SYSTEM AND PROCESS FOR THE REDUCTION OF NITRIC ACID CONCENTRATION USING ELECTROLYTIC CELL

#99
20150251934
2015-09-10

MODULAR ENERGY RECOVERING WATER TREATMENT DEVICES

#100
20150197863
2015-07-16

Portable apparatus for producing hydrogen water

#101
20150065339
2015-03-05

Metal oxide-organic hybrid materials for heterogeneous catalysis and methods of making and using thereof

#102
20150021243
2015-01-22

Personal Water Purifier

#103
20150017089
2015-01-15

Method for nitrogen recovery from an ammonium comprising fluid and bio-electrochemical system

#104
20140332406
2014-11-13

Purification methods and systems for contaminated liquids and mineral slurries

#105
20140166497
2014-06-19

Method and apparatus for treating sewage

#106
20140166478
2014-06-19

Method and apparatus for treating sewage

#107
20140158637
2014-06-12

Process for generating oxygenated water

#108
20140001120
2014-01-02

REMOVAL OF PHOSPHORUS FROM SEWAGE BY ELECTRODE METAL ADDITION

#109
20130277231
2013-10-24

Electrolytic apparatus and method for treating water to remove nitrates, phosphates, arsenates, and molecules of high molecular weight

#110
20130193002
2013-08-01

APPARATUS FOR PRODUCING ELECTROLYTIC REDUCED WATER AND CONTROL METHOD THEREOF

#111
20130168262
2013-07-04

METHOD AND SYSTEM FOR ELECTROCHEMICAL REMOVAL OF NITRATE AND AMMONIA

#112
20130137000
2013-05-30

Modular energy recovering water treatment devices

#113
20130092558
2013-04-18

APPARATUS FOR PRODUCING ELECTROLYTIC REDUCED WATER AND CONTROL METHOD THEREOF

#114
20130062219
2013-03-14

Water treatment apparatus and sterilizing and cleansing method thereof

#115
20130043124
2013-02-21

Portable hydrogen-rich water generator

#116
20130026033
2013-01-31

SEALING-TYPE WATER PURIFIER AND WATER-PURIFYING METHOD FOR PRODUCING ELECTROLYZED HYDROGEN-CONTAINING PURE COLD AND HOT WATER AND PREVENTING CONTAMINATION CAUSED BY MICROORGANISMS AND FOREIGN CONTAMINANTS

#117
20120325682
2012-12-27

Layered electrocatalyst for oxidation of ammonia and ethanol

#118
20120305489
2012-12-06

Method and apparatus for treating selenium-containing water

#119
20120279872
2012-11-08

METHOD AND SYSTEM FOR COMBINED PHOTOCATALYTIC AND ELECTROCHEMICAL WASTEWATER REMEDIATION

#120
20120132539
2012-05-31

METHODS FOR ELECTROCHEMICAL DECHLORINATION OF ANOLYTE BRINE FROM NaCl ELECTROLYSIS

#121
20120070540
2012-03-22

Process for producing hydrogen-containing water for drinking

#122
20110198236
2011-08-18

Apparatus and method for producing hydrogen-dissolved drinking water

#123
20110111048
2011-05-12

Method for producing hydrogen-containing fluid able to be used in a living organism

#124
20110108436
2011-05-12

Method for treating industrial waste waters

#125
20110084031
2011-04-14

Treatment of a waste stream through production and utilization of oxyhydrogen gas

#126
20110068000
2011-03-24

DRINKING ELECTROLYTIC WATER APPARATUS USING BOTTLED WATER AS RAW WATER

#127
20110042234
2011-02-24

INTEGRATED ELECTROLYTIC AND CHEMICAL METHOD FOR PRODUCING CLEAN TREATED WATER WHEREIN CYANIDE SPECIES CONCENTRATION IS LESS THAN 1 MILLIGRAM PER LITER

#128
20100219068
2010-09-02

Harmful Gas Treatment Apparatus and Water Treatment Apparatus

#129
20100185036
2010-07-22

Method for treating radioactive liquid waste and apparatus for the same

#130
20100140106
2010-06-10

Process for mixed chemical/electrochemical treatment of a liquid medium loaded with nitrates, a device for treating such a liquid medium and applications

#131
20100116650
2010-05-13

REMOVAL OF CONTAMINANTS FROM A FLUID

#132
20090311342
2009-12-17

Method for activating and stabilizing dissolved hydrogen in water

#133
20090281312
2009-11-12

PROCEDURE FOR THE TREATMENT OF PURINES AND RESULTING PRODUCT

#134
20090196863
2009-08-06

METHOD OF ANTIOXIDATION AND ANTIOXIDANT-FUNCTIONING WATER

#135
20090181105
2009-07-16

METHOD OF ANTIOXIDATION, ANTIOXIDANT-FUNCTIONING WATER, AND USAGE OF THE SAME

#136
20090159459
2009-06-25

Electrochemical Recovery of Arsenic

#137
20090095639
2009-04-16

Method and apparatus for neutralizing electrochemically activated liquids

#138
20090014377
2009-01-15

Ultrasonic treatment chamber having electrode properties

#139
20090014337
2009-01-15

Electrochemical Nitrate Destruction

#140
20080314755
2008-12-25

Layered electrocatalyst for oxidation of ammonia and ethanol

#141
20080272003
2008-11-06

Method and means for removing phosphorous from waste water or the like

#142
20080251461
2008-10-16

Water treatment process

#143
20080047907
2008-02-28

Portable in-situ ozone-generating remedial system

#144
20080041732
2008-02-21

Portable in-situ oxygenation and hydrogenation remedial system

#145
20080022787
2008-01-31

Portable discrete groundwater sampling system

#146
20070218540
2007-09-20

Bioelectrolytical methanogenic/methanotrophic coupling for bioremediation of ground water

#147
20070029260
2007-02-08

System and method of slurry treatment

#148
20070029201
2007-02-08

Method and apparatus for removing impurities from waste water by electroflotation

#149
20050269271
2005-12-08

Apparatus for treating water

#150
20050173262
2005-08-11

Water treatment device

#151
20050170011
2005-08-04

Method of inhibiting oxidation, water capable of inhibiting oxidation and use thereof

#152
20050115905
2005-06-02

Nitrate removal