ClassID:

86221

C02F2001/427 - CPC Classification

Classification description:

Treatment of water, waste water, or sewage by ion-exchange using mixed beds

Recent Application in this class:
#1
20260132065
2026-05-14

METHOD FOR PRODUCING PURE WATER FROM WHICH BORON HAS BEEN REMOVED, PURE WATER PRODUCTION DEVICE, AND ULTRAPURE WATER PRODUCTION SYSTEM

#2
20260132058
2026-05-14

NOVEL REGENERATION OF MIXED BED ION EXCHANGE RESINS FOR SEAWATER DESALINATION

#3
20260028260
2026-01-29

MOBILE ULTRAPURE WATER SYSTEM

#4
20250368550
2025-12-04

MITIGATION AND RECOVERY OF DEGRADED DEVICE EFFICIENCY IN WATER ELECTROLYZERS CAUSED BY IMPURITIES

#5
20250345498
2025-11-13

Water Treatment Systems, Devices, and Methods for Fluid Preparation

#6
20250340455
2025-11-06

PURE WATER SUPPLYING MACHINE

#7
20250263313
2025-08-21

METHOD FOR PRODUCING ULTRAPURE WATER, ULTRAPURE WATER PRODUCTION APPARATUS, AND ULTRAPURE WATER PRODUCTION SYSTEM

#8
20250163712
2025-05-22

SYSTEMS AND METHODS FOR CONTROLLING AN ALKALINITY LEVEL OF A POOL OR SPA

#9
20250002378
2025-01-02

REGENERATABLE SYSTEM FOR CONTAMINANT REMOVAL

#10
20240286938
2024-08-29

STERILE AND/OR PURIFIED FLUID AND/OR SOLUTION DELIVERY SYSTEM

#11
20240286934
2024-08-29

ACIDIC AND ALKALINE CLEANING OF ION EXCHANGE SYSTEMS, SUCH AS WATER PURIFIERS, BY ION EXCHANGE RESIN

#12
20240277909
2024-08-22

Medicament Preparation and Treatment Devices, Methods, and Systems

#13
20240255411
2024-08-01

PARTICLE MEASURING APPARATUS, ULTRAPURE WATER PRODUCTION APPARATUS HAVING THE SAME, AND PARTICLE MEASURING METHOD

#14
20240109795
2024-04-04

INTERNET-OF-THINGS ENABLED DEIONIZATION TANK CONFIGURATION ARTIFICIAL INTELLIGENCE ALGORITHM

#15
20240091423
2024-03-21

Water Treatment Systems, Devices, and Methods for Fluid Preparation

#16
20230312386
2023-10-05

Method and system for providing ultrapure water with flexible lamp configuration

#17
20220396511
2022-12-15

Wastewater processing modules and wastewater treatment systems including the same

#18
20220234911
2022-07-28

FILTERING WATER BOTTLE

#19
20220112103
2022-04-14

Methods and systems for wastewater treatment

#20
20220047790
2022-02-17

Medicament preparation and treatment devices, methods, and systems

#21
20220017383
2022-01-20

SYSTEMS AND DEVICES FOR ELIMINATING FILTER AIR LOCKS

#22
20210395113
2021-12-23

Regeneratable system for contaminant removal

#23
20210380451
2021-12-09

Method and system for providing ultrapure water with flexible lamp configuration

#24
20210340340
2021-11-04

Gamma irradiation of ion exchange resins to remove or trap halogenated impurities

#25
20210198135
2021-07-01

Variable pulsed ionic waste stream reclamation system and method

#26
20210198134
2021-07-01

Variable pulsed ionic waste stream reclamation system and method

#27
20210198133
2021-07-01

Variable pulsed ionic waste stream reclamation system and method

#28
20210178041
2021-06-17

Water treatment systems, devices, and methods for fluid preparation

#29
20210171371
2021-06-10

Sterile and/or purified fluid and/or solution delivery system

#30
20210039961
2021-02-11

FILTER DEVICE FOR CLEANING COOLANT WATER FOR AN INTERNAL COMBUSTION ENGINE

#31
20210024380
2021-01-28

Media purification devices having intergral flow controllers

#32
20200385292
2020-12-10

DEVICES AND METHODS FOR THE REMEDIATION OF GROUNDWATER

#33
20200339442
2020-10-29

Component addition polymerization

#34
20200331780
2020-10-22

WATER IONIZATION SYSTEM AND METHOD

#35
20200317554
2020-10-08

Purification filter element and water purification cup

#36
20200217185
2020-07-09

Water treatment for increasing recovery of a resource from a reservoir

#37
20200189938
2020-06-18

A Method For Producing Ultrapure Water

#38
20200171436
2020-06-04

ULTRAPURE-WATER PRODUCTION SYSTEM

#39
20200165146
2020-05-28

ION EXCHANGING UNIT

#40
20200056715
2020-02-20

Fluid distributor valve and water purification and dispensing system using the same

#41
20200055743
2020-02-20

Water purification and dispensing system and method

#42
20200024157
2020-01-23

Method for producing ultrapure water

#43
20200024156
2020-01-23

Method for producing ultrapure water

#44
20200024155
2020-01-23

Method for producing ultrapure water

#45
20200009308
2020-01-09

Medicament preparation and treatment devices, methods, and systems

#46
20200002207
2020-01-02

Variable pulsed ionic waste stream reclamation system and method

#47
20190382282
2019-12-19

FILTERING WATER BOTTLE

#48
20190074099
2019-03-07

Method for treating waste water from the decontamination of a metal surface, waste-water treatment device and use of the waste-water treatment device

#49
20190040819
2019-02-07

System and method for storing and supplying water to an internal combustion engine of a motor vehicle

#50
20190031543
2019-01-31

Process condensate water treatment

#51
20180327281
2018-11-15

WATER TREATMENT DEVICE AND HEATING COOKER PROVIDED WITH SAID WATER TREATMENT DEVICE

#52
20180273412
2018-09-27

Method and system for providing ultrapure water with flexible lamp configuration

#53
20180264458
2018-09-20

PURIFICATION METHOD FOR PURIFYING WATER IN A SPENT FUEL POOL IN A NUCLEAR POWER PLANT

#54
20180258238
2018-09-13

Gamma irradiation of ion exchange resins to remove or trap halogenated impurities

#55
20180207342
2018-07-26

Water treatment systems, devices, and methods for fluid preparation

#56
20180194646
2018-07-12

Media purification devices having integral flow controllers

#57
20180178143
2018-06-28

Water purification apparatus of fuel cell generation system

#58
20180128530
2018-05-10

REFRIGERATOR APPLIANCE AND ICE-MAKING ASSEMBLY THEREFOR

#59
20180125032
2018-05-10

Automated method and system for introducing Liquid iodine into drinking water

#60
20180105439
2018-04-19

Regeneration of mixed bed resins

#61
20180044208
2018-02-15

Multiple-bore solute cartridge carrier

#62
20180037485
2018-02-08

Sterile and/or purified fluid and/or solution delivery system

#63
20180002204
2018-01-04

Device for Improving the Chemical and Physical Properties of Water and Methods of Using Same

#64
20170368547
2017-12-28

Ion exchanger

#65
20170354932
2017-12-14

Electrodeionization device and pure-water production system

#66
20170290970
2017-10-12

Medicament preparation and treatment devices, methods, and systems

#67
20170057848
2017-03-02

Ion exchange membrane, ion exchange membrane laminated body provided with ion exchange membrane, electrochemical cell provided with ion exchange membrane laminated body, and water treatment apparatus provided with electrochemical cell

#68
20170022074
2017-01-26

Method and apparatus for recharging a deionization vessel

#69
20160289094
2016-10-06

CONDENSATE DEMINERALIZATION APPARATUS AND CONDENSATE DEMINERALIZATION METHOD

#70
20160107898
2016-04-21

FILTERING WATER BOTTLE

#71
20160031724
2016-02-04

Systems, devices, and methods of water filtration

#72
20160031721
2016-02-04

Gravity-fed and dual ion-exchange water filtration bottle

#73
20160023918
2016-01-28

Systems and methods of eliminating filter air locks

#74
20150353383
2015-12-10

Filter assembly with locking cover

#75
20150336815
2015-11-26

Method of treatment of radioactive wastewater

#76
20150307367
2015-10-29

Low pressure drop remediation bed for water based coolant loops

#77
20150225259
2015-08-13

Flow passage control valve

#78
20150225258
2015-08-13

Ion exchanger, water treatment device provided with same, and hot water supply device

#79
20150117588
2015-04-30

Purification method for purifying water in a spent fuel pool in a nuclear power plant

#80
20150101980
2015-04-16

Household water filter element for removing radioactive substances

#81
20150096940
2015-04-09

WATER TREATMENT PROCESS

#82
20150083667
2015-03-26

Composite ion exchange media for liquid filtration systems

#83
20150048027
2015-02-19

Method for high efficiency reverse osmosis operation

#84
20140197084
2014-07-17

Seawater desalination unit

#85
20140110339
2014-04-24

Method for high efficiency reverse osmosis operation

#86
20140034579
2014-02-06

Method for treating drinking water by means of a replaceable cartridge filtering system

#87
20130306574
2013-11-21

Low pressure drop remediation bed for water based coolant loops

#88
20130298839
2013-11-14

Device and method for administering oral disinfecting solutions and other medicaments

#89
20130134097
2013-05-30

Mobile system for treatment of water by deionization

#90
20130109769
2013-05-02

Pretreated cation-exchange resin, treation method of the resin, and mixed bed with cation-exchange resin

#91
20130068624
2013-03-21

Electrodeionization apparatus for producing deionized water

#92
20130062282
2013-03-14

METHOD FOR HIGH EFFICIENCY REVERSE OSMOSIS OPERATION

#93
20130056412
2013-03-07

MIXED LIQUOR FILTERABILITY TREATMENT IN A MEMBRANE BIOREACTOR

#94
20130020078
2013-01-24

Oil recovery process

#95
20120255911
2012-10-11

Method for manufacturing anion exchange resin, anion exchange resin, method for manufacturing cation exchange resin, cation exchange resin, mixed bed resin, and method for manufacturing ultrapure water for washing electronic component material

#96
20120234797
2012-09-20

Corrosion preventing apparatus, corrosion preventing method, and wire electric discharge machining apparatus

#97
20120220674
2012-08-30

Method for manufacturing anion exchange resin, anion exchange resin, method for manufacturing cation exchange resin, cation exchange resin, mixed bed resin, and method for manufacturing ultrapure water for washing electronic component material

#98
20120055862
2012-03-08

Filtering water bottle

#99
20110237495
2011-09-29

FUNCTIONAL METABOLOMICS COUPLED MICROFLUIDIC CHEMOTAXIS DEVICE AND IDENTIFICATION OF NOVEL CELL MEDIATORS

#100
20110210072
2011-09-01

Pure water manufacturing method and pure water manufacturing apparatus

#101
20110195033
2011-08-11

Automated method and system for introducing molecular iodine into drinking water

#102
20110132827
2011-06-09

Composite filtration and demineralization apparatus

#103
20110062070
2011-03-17

APPARATUS FOR TREATING WASTEWATER, PARTICULARLY WASTEWATER ORIGINATING FROM A PROCESS FOR THE PRODUCTION OF PHOTOVOLTAIC CELLS

#104
20110042291
2011-02-24

Waste fluid treating apparatus

#105
20110036776
2011-02-17

PROCESSING METHOD OF LIQUID

#106
20100314252
2010-12-16

Electrically enhanced aqueous filter and method therefor

#107
20100288308
2010-11-18

METHOD AND SYSTEM FOR PRODUCING ULTRAPURE WATER, AND METHOD AND SYSTEM FOR WASHING ELECTRONIC COMPONENT MEMBERS

#108
20100130626
2010-05-27

Method for manufacturing anion exchange resin, anion exchange resin, method for manufacturing cation exchange resin, cation exchange resin, mixed bed resin, and method for manufacturing ultrapure water for washing electronic component material

#109
20090316119
2009-12-24

Apparatus and method for conditioning an immersion fluid

#110
20090310733
2009-12-17

Demineralizer of primary coolant system in pressurized-water reactor power plant and method for purifying primary cooling water in pressurized-water reactor power plant

#111
20090296873
2009-12-03

Method and apparatus for condensate demineralization

#112
20090294367
2009-12-03

METHOD AND APPARATUS FOR CONDENSATE DEMINERALIZATION

#113
20090071838
2009-03-19

ELECTROCHEMICAL APPARATUS WITH RETRACTABLE ELECTRODE

#114
20090057274
2009-03-05

Electric discharge machine and electric discharge machining method

#115
20080156735
2008-07-03

Method and apparatus for treatment of an effluent containing radioactive materials

#116
20080073276
2008-03-27

Filtering systems and methods characterized by reduced color throw

#117
20070289925
2007-12-20

Electrical-discharge machining apparatus and method and apparatus for dielectric-fluid quality control

#118
20070262023
2007-11-15

Method for removing arsenite and arsenate from water

#119
20070221581
2007-09-27

Ultrapure Water Production Plant

#120
20070051683
2007-03-08

Method for demineralizing condensate

#121
20060278582
2006-12-14

Process for reducing contaminants in condensate resulting from the conversion of bauxite to alumina

#122
20060231491
2006-10-19

High purity water produced by reverse osmosis

#123
20060180550
2006-08-17

Portable water purifier

#124
20060096925
2006-05-11

Water conversion device

#125
20060054193
2006-03-16

Cleaning method

#126
20060037862
2006-02-23

Electrodeionization apparatus

#127
20060011546
2006-01-19

Portable compact ultra high purity water system via direct processing from city feed water

#128
20050274663
2005-12-15

[Air and Water Conditioning System and Filter Media]

#129
20050269254
2005-12-08

[Air and Water Purifying System And Filter Media]

#130
20050058886
2005-03-17

Electrochemical apparatus with retractable electrode