ClassID:

86665

C02F2305/02 - CPC Classification

Classification description:

Use of specific compounds during water treatment Specific form of oxidant

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

Methods and Systems of Iodine Capture from Aqueous Solutions

#2
20260070821
2026-03-12

Nanobubbles for Recovering Metallic Constituents from an Aqueous Stream

#3
20260070815
2026-03-12

PHOTOOXIDATION OF PFAS AT 222 nm

#4
20250388501
2025-12-25

COMPOSITION AND USE THEREOF

#5
20250320140
2025-10-16

USE OF MEDIUM CHAIN PERACIDS FOR BIOFILM INHIBITION IN INDUSTRIAL RECIRCULATING WATER SYSTEMS

#6
20250263322
2025-08-21

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

#7
20250236541
2025-07-24

Methods and Systems of Iodine Capture from Aqueous Solutions

#8
20250230076
2025-07-17

METHOD FOR BLENDING FRAGRANCE AND DYE COMPOUNDS WITH OXIDIZING AGENTS FOR USE IN SWIMMING POOLS AND SPAS

#9
20250206649
2025-06-26

WASTEWATER SLUDGE DEWATERING

#10
20250171343
2025-05-29

TREATMENTS OF ORGANIC WASTE

#11
20250019285
2025-01-16

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

#12
20250019266
2025-01-16

Methods and Systems for Recycling Materials During PFAS Destruction

#13
20250019265
2025-01-16

Methods and Systems of Oxidative Pretreatment of Aqueous Solutions Containing PFAS

#14
20240400427
2024-12-05

OXIDIZING COMPOSITIONS FOR REMOVING SULFUR COMPOUNDS FROM HYDROCARBON FUELS AND WASTEWATER

#15
20240391812
2024-11-28

Water Purification System

#16
20240239698
2024-07-18

METHOD AND SYSTEM FOR TREATMENT OF BRACKISH WATER INLAND DESALINATION BRINE

#17
20240190735
2024-06-13

ENHANCING AMMONIUM OXIDATION AND FLUOROCHEMICAL DEGRADATION WITH FERRIC IRON PHASE COMPRISING POLYMERIC COATINGS

#18
20240150200
2024-05-09

METHOD AND APPARATUS FOR TREATING WATER

#19
20240083779
2024-03-14

METHOD FOR OPERATING REVERSE OSMOSIS MEMBRANE DEVICE, A SLIME CONTROL METHOD, AND A WATER TREATMENT DEVICE

#20
20240067543
2024-02-29

Process for decontamination of hazardous sulfur compounds in sour water tanks

#21
20240034653
2024-02-01

Methods of treating water with powder activated carbon to reduce organic matter content

#22
20230406744
2023-12-21

METHOD FOR SIMULTANEOUSLY TREATING HIGH CONCENTRATION OF SULFIDE AND ORGANIC COMPOSITION CONTAINED IN WASTE LIQUID

#23
20230295017
2023-09-21

WATER RECOVERY SYSTEM AND WATER RECOVERY METHOD

#24
20230202887
2023-06-29

Method for intensification of advanced biological nitrogen removal and reduction of endocrine disrupting toxicity

#25
20230174399
2023-06-08

WATER TREATMENT METHOD, WATER TREATMENT DEVICE AND SLIME INHIBITOR FOR MEMBRANES

#26
20220144675
2022-05-12

Combined VOC mitigating and antimicrobial systems

#27
20210317014
2021-10-14

METHODS AND SYSTEMS FOR CONTROLLING BACTERIA IN BIOFILMS

#28
20210276896
2021-09-09

Methods of treating water with powder activated carbon to reduce organic matter content

#29
20210269337
2021-09-02

Multifunctional continuous hydrothermal oxidation experiment system and use method therefor

#30
20210253460
2021-08-19

Wastewater treatment with suspended growth and membrane aerated biofilm

#31
20210230037
2021-07-29

Treatments of organic waste

#32
20210230032
2021-07-29

Combination of captivator and fixed film bioreactor solutions

#33
20210230029
2021-07-29

Method for removing heavy metal pollutants in water with divalent manganese strengthened ferrate

#34
20210214250
2021-07-15

OZONE WATER GENERATION DEVICE, WATER TREATMENT DEVICE, OZONE WATER GENERATION METHOD, AND CLEANING METHOD

#35
20210213386
2021-07-15

Decontamination of sulfur contaminants from a vessel

#36
20210198131
2021-07-01

Method for recovering groundwater polluted by organic phenols

#37
20210179463
2021-06-17

Methods of recovering platinum group metals from waste streams

#38
20210122655
2021-04-29

Water purification system

#39
20200377394
2020-12-03

Process for decontamination of hazardous sulfur compounds in sour water tanks

#40
20200247697
2020-08-06

Water treatment system

#41
20200247692
2020-08-06

Chlorine-generating assembly

#42
20200223723
2020-07-16

Method for treating sulfides in waste streams

#43
20200206684
2020-07-02

Decontamination of sulfur contaminants from a vessel

#44
20200140298
2020-05-07

Methods for treating sulfides in gaseous streams

#45
20200079666
2020-03-12

Method for treating sulfides in waste streams

#46
20200079665
2020-03-12

System and method for generation of point of use reactive oxygen species

#47
20190388840
2019-12-26

Water treatment method

#48
20190300402
2019-10-03

Method for treating sulfides in waste streams

#49
20190248684
2019-08-15

Method for treating sulfides in waste streams

#50
20190084850
2019-03-21

Microbubble generator for enhanced plasma treatment of liquid

#51
20190055148
2019-02-21

Method for controlling chlorinated nitrogen-containing disinfection by-product in water

#52
20190047886
2019-02-14

Method for treating sulfides in waste streams

#53
20190039926
2019-02-07

Aerobic nitritation of ammonia and integrated anammox processes

#54
20180353900
2018-12-13

Decontamination of sulfur contaminants from a vessel

#55
20180297874
2018-10-18

Process for decontamination of hazardous sulfur compounds in sour water tanks

#56
20180282189
2018-10-04

STRUVITE PRECIPITATION AND MICROBIAL FUEL CELL FOR RECOVERY OF NUTRIENTS AND ENERGY FROM DIGESTER EFFLUENT

#57
20180265386
2018-09-20

Advanced oxidation process of degrading nonsteroidal anti-inflammatory drugs in sewage by UV persulfate

#58
20180160682
2018-06-14

Cleaning liquid

#59
20180127289
2018-05-10

Devices and methods for monitoring water flow through a chlorine-generating or other assembly

#60
20180111859
2018-04-26

Method of treating spent caustic and apparatus thereof

#61
20180105618
2018-04-19

N-halamine melamine derivatives as novel decontamination and biocidal agents

#62
20180050938
2018-02-22

Process and apparatus for treating water

#63
20170292060
2017-10-12

Well treatment material for slow release of biocide

#64
20170203236
2017-07-20

Method of Treating Flowback Fluid from a Well

#65
20170107137
2017-04-20

Resource reuse-type industrial waste water treatment method and apparatus utilizing oxidizing agent generated by utilizing waste water

#66
20170080384
2017-03-23

Decontamination of sulfur contaminants from a vessel

#67
20170051417
2017-02-23

System and method for generation of point of use reactive oxygen species

#68
20170044029
2017-02-16

Filtration treatment system and filtration treatment method

#69
20170036928
2017-02-09

Methods of inhibiting fouling in liquid systems

#70
20160376801
2016-12-29

Hot tub floater with outwardly extending bristles

#71
20160368797
2016-12-22

Sludge treatment system and sludge treatment method

#72
20160362800
2016-12-15

Carbon dioxide capture and storage electrolytic methods

#73
20160355423
2016-12-08

OZONE FAUCET SWITCHING STRUCTURE

#74
20160355418
2016-12-08

CDI-type water treatment method

#75
20160305412
2016-10-20

Adjustable pumping apparatus

#76
20160304360
2016-10-20

Filtration medium comprising a carbon oxychalcogenide

#77
20160263529
2016-09-15

Improving the chemical stability of filtration membranes

#78
20160212994
2016-07-28

Cleaning liquid

#79
20160137535
2016-05-19

Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water

#80
20160115053
2016-04-28

Method for removing selenium and apparatus for removing selenium

#81
20160102001
2016-04-14

Kit for wastewater treatment, and manufacturing method for and use of photocatalyst

#82
20160060144
2016-03-03

Method of removing particulate silicon from an effluent water

#83
20160029639
2016-02-04

Dual biocide generator

#84
20150368124
2015-12-24

Water Processing Device

#85
20150353391
2015-12-10

Ozone faucet switching structure

#86
20150335808
2015-11-26

Total chlorine water detection system for medical fluid treatments

#87
20150329391
2015-11-19

Hot sanitary water system and method for disinfection of hot water

#88
20150315048
2015-11-05

Material used in the removal of contaminants from liquid matrices

#89
20150307380
2015-10-29

FORMULATIONS CONTAINING A NON-OXIDATIVE BIOCIDE AND A SOURCE OF ACTIVE HALOGEN AND USE THEREOF IN WATER TREATMENT

#90
20150307372
2015-10-29

Apparatus and method for treating ballast water

#91
20150270110
2015-09-24

Modular microplasma microchannel reactor devices, miniature reactor modules and ozone generation devices

#92
20150259203
2015-09-17

Ozone generator

#93
20150210568
2015-07-30

Methods and systems for treating an aqueous effluent

#94
20150203376
2015-07-23

Devices and methods for monitoring water flow through a chlorine-generating or other assembly

#95
20150191380
2015-07-09

Vortex mixing baffle

#96
20150174568
2015-06-25

Molecularly imprinted catalysts and methods of making and using the same

#97
20150158751
2015-06-11

Methods and compositions for treating water-containing systems

#98
20150158750
2015-06-11

Water faucet with integrated contact and contamination protector and photocatalytic disinfection

#99
20150130090
2015-05-14

Jet Array Aeration Apparatus

#100
20150125528
2015-05-07

CONTROLLED RELEASE APPARATUS AND USES THEREOF

#101
20150068984
2015-03-12

SYSTEM AND METHOD FOR TREATMENT OF SPENT CAUSTIC WASTEWATER

#102
20150034566
2015-02-05

Water treatment

#103
20150027961
2015-01-29

Process for decontamination of hazardous sulfur compounds in sour water tanks

#104
20150021243
2015-01-22

Personal Water Purifier

#105
20150008186
2015-01-08

Process for removal of radioactive contamination from wastewater

#106
20140349975
2014-11-27

Biocidal compositions and methods of use

#107
20140346122
2014-11-27

System and apparatus for determining and controlling water clarity

#108
20140332472
2014-11-13

Process to maintain large clean recreational bodies of water

#109
20140326680
2014-11-06

Salt water pool chlorinator having a sensor

#110
20140326677
2014-11-06

Treatment of produced water

#111
20140209541
2014-07-31

Filtration medium comprising a carbon oxychalcogenide

#112
20140116960
2014-05-01

Oxidation of contaminants

#113
20140072653
2014-03-13

System and method for generation of point of use reactive oxygen species

#114
20130264293
2013-10-10

Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water

#115
20130259743
2013-10-03

Use of peracetic acid/hydrogen peroxide and peroxide-reducing enzymes for treatment of drilling fluids, frac fluids, flowback water and disposal water

#116
20130248458
2013-09-26

Organic acid activation of persulfates

#117
20130240450
2013-09-19

Method for treating highly concentrated resin-desorption liquid generated from wastewater deep purification

#118
20130098753
2013-04-25

Plasma generator and method for producing radical, and cleaning and purifying apparatus and small-sized electrical appliance using the same

#119
20130022720
2013-01-24

Methods of Treating a Water Sample or a Substrate to Remove Organic Compounds

#120
20130001074
2013-01-03

ELECTROCHEMICAL CHLORINE GENERATOR ASSEMBLY FOR USE IN POOL CLEANER

#121
20110290707
2011-12-01

Method and apparatus for operation of pool cleaner with integral chlorine generator

#122
20110114569
2011-05-19

APPARATUS AND METHOD FOR TREATING BALLAST WATER

#123
20110100927
2011-05-05

Methods and compositions for reducing chlorine demand, decreasing disinfection by-products and controlling deposits in drinking water distribution systems

#124
20090282627
2009-11-19

Method and appartus for operation of pool cleaner with integral chlorine generator

#125
20090117202
2009-05-07

Formulations containing a non-oxidative biocide and a source of active halogen and use thereof in water treatment

#126
20080116144
2008-05-22

Methods and compositions for reducing chlorine demand, decreasing disinfection by-products and controlling deposits in drinking water distribution systems

#127
18849873
2025-09-09

Methods, systems, and compositions for oxidation of a substrate

#128
17471362
2024-01-09

Corrosion and bacteria control method

#129
16601783
2020-06-30

Water purification system

#130
16455383
2021-01-05

Water purification system

#131
15299431
2017-08-08

Collection and treatment of condensate from climate control equipment

#132
15196173
2017-02-28

Methods for managing sulfide in wastewater systems

#133
14723643
2016-07-26

Methods for managing sulfide in wastewater systems

#134
14624421
2015-11-24

Water treatment for high-efficiency cleaning

#135
14561537
2015-06-30

Methods for managing sulfide in wastewater systems