ClassID:

86492

C02F2101/40 - CPC Classification

Classification description:

Nature of the contaminant; Organic compounds containing sulfur

Recent Application in this class:
#1
20260145971
2026-05-28

METHOD OF WATER PURIFICATION

#2
20260091992
2026-04-02

MODIFIED CHITOSAN POLYMERS FOR DYE-CONTAMINATED WATER PURIFICATION

#3
20260084079
2026-03-26

APPARATUS AND METHOD FOR FLUID TREATMENT OF A FEED COMPRISING A FLUID MIXTURE

#4
20250376393
2025-12-11

SELF-REGENERATING GRAPHENE OXIDE-BASED ADSORBENTS FOR CONTAMINANT REMOVAL FROM AQUEOUS SYSTEMS

#5
20250197259
2025-06-19

CATALYST FOR DECOMPOSING NON-DEGRADABLE POLLUTANTS AND NON-DEGRADABLE POLLUTANT DECOMPOSITION SYSTEM INCLUDING THE CATALYST

#6
20250145507
2025-05-08

METHOD FOR TREATING REFRACTORY ORGANIC POLLUTANTS IN WASTEWATER

#7
20250145501
2025-05-08

APPARATUS, SYSTEM AND METHOD FOR PFAS REMOVAL AND MINERALIZATION

#8
20250091908
2025-03-20

METHOD TO GENERATE VIGOROUS CAVITATION THROUGH THE MICROSCALE DEVICE AT LOW PRESSURE FOR WASTEWATER TREATMENT

#9
20250065278
2025-02-27

METHOD OF REMOVING AN ORGANIC MICROPOLLUTANT FROM A TREATMENT SOLUTION

#10
20250059077
2025-02-20

PFAS REMOVAL AND DESTRUCTION USING BIOREACTORS FOLLOWED BY SUPERCRITICAL WATER OXIDATION

#11
20250042786
2025-02-06

BUOYANT PERMEABLE REACTIVE BARRIER

#12
20240416287
2024-12-19

TRIAMINE-FUNCTIONALIZED MCM-41-BASED FILTRATION MEMBRANE

#13
20240374773
2024-11-14

COMPOSITION FOR THE PREVENTION AND ELIMINATION OF ODORS

#14
20240270617
2024-08-15

SYSTEM AND METHOD OF REDUCING OXIDANTS IN A CHEMICAL STREAM

#15
20240217844
2024-07-04

ZERO LIQUID DISCHARGE WATER MANAGEMENT SYSTEM

#16
20240182848
2024-06-06

SULFAMETHOXAZOLE-DEGRADING PSEUDOMONAS SILESIENSIS STRAIN, AND APPLICATION THEREOF

#17
20240091738
2024-03-21

Contaminant removal by zero-valent iron-based green sorption media

#18
20240083777
2024-03-14

Preparation method and application of clay/tannic acid/metal ion composite material for efficient adsorption of antibiotics

#19
20230406744
2023-12-21

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

#20
20230406726
2023-12-21

Water treatment for removing PFAS

#21
20230338926
2023-10-26

POROUS MANGANESE-CONTAINING FENTON CATALYTIC MATERIAL AND PREPARATION METHOD AND USE THEREOF

#22
20230250004
2023-08-10

WET AIR OXIDATION SYSTEM WITH SHELL AND TUBE HEAT EXCHANGER

#23
20230249194
2023-08-10

A Process for Removing Micropollutants in Liquid or Gas

#24
20230241575
2023-08-03

Synergistic zero-valent iron-based green sorption media for contaminant removal

#25
20230183111
2023-06-15

USE OF A CHLORINE DIOXIDE PRECURSOR FOR CONTROLLING ION METABOLISM OF BACTERIA IN COOLING WATER SYSTEMS

#26
20230127268
2023-04-27

Lignin-based hierarchical porous carbon with high specific surface area and preparation method and application thereof

#27
20230116436
2023-04-13

Catalyst-free method for degrading dioxane in alkyl ether sulfate vacuum removal water

#28
20220402787
2022-12-22

Treatment system for cephalosporin wastewater and treatment method thereof

#29
20220324726
2022-10-13

Repairing Material for Emergency Treatment of Black and Odorous Surface Water Environment and Its Preparation Method

#30
20220282166
2022-09-08

Stabilized concentrated formaldehyde solutions and methods of use thereof

#31
20220234932
2022-07-28

Method of reducing and controlling hazardous substance in process of high-value biological conversion of urban organic waste

#32
20220204363
2022-06-30

Reusable composite filter material and methods for making and using the same for removing and destroying molecular contaminants from water

#33
20220185701
2022-06-16

Water treatment for removing PFAS

#34
20210353454
2021-11-18

Thermal management system with sublimator and adsorbent bed

#35
20210300799
2021-09-30

ELECTROCATALYTIC BIO-OIL AND WASTEWATER TREATMENT

#36
20210275704
2021-09-09

Method for manufacturing a medium for purifying fluids containing toxic compounds

#37
20210198847
2021-07-01

Method and apparatus for drying preferably a moving material web by means of at least one drying device heated by means of biogas and comprising infrared radiators

#38
20210171365
2021-06-10

Enchanced system and method for treatment of soil and groundwater contaminated with PFAS

#39
20210170361
2021-06-10

Starch-based carbon composite and use thereof in selective and efficient adsorption of mercury ion and methylene blue

#40
20210139354
2021-05-13

Destruction of PFAS in the presence of silica

#41
20210130211
2021-05-06

WATER TREATMENT PROCESS

#42
20210078881
2021-03-18

System and method of reducing oxidants in a chemical stream

#43
20210053025
2021-02-25

Porous cyclodextrin polymeric materials and methods of making and using same

#44
20210039966
2021-02-11

Water purification

#45
20200306726
2020-10-01

Systems and Methods of Regenerating Activated Carbon

#46
20200262724
2020-08-20

Zinc ammonium carbonate sulfide scavengers

#47
20200255304
2020-08-13

Method and system for controlling odor in water system

#48
20190367397
2019-12-05

Treatment method of wastewater containing heterocyclic organics and adsorbing material obtained therefrom

#49
20190358612
2019-11-28

CATALYST FILLER FOR PURIFYING WATER IN AQUARIUMS AND PREPARATION METHOD AND USE THEREOF

#50
20190350751
2019-11-21

Thermal management system with sublimator and adsorbent bed

#51
20190161372
2019-05-30

Systems and processes for treatment of high total dissolved solids wastewater

#52
20190126257
2019-05-02

Hollow porous carbon nitride nanospheres composite loaded with AgBr nanoparticles, preparation method thereof, and its application in dye degradation

#53
20190062184
2019-02-28

Elemental sulfur dispersant to control fouling in water systems

#54
20190060868
2019-02-28

Porous cyclodextrin polymeric materials and methods of making and using same

#55
20190039914
2019-02-07

Water processing device

#56
20180370662
2018-12-27

Thermal management system with sublimator and adsorbent bed

#57
20180346360
2018-12-06

Chloroperoxidase-catalyzed degradation of pharmaceutical pollutants in wastewater

#58
20180250633
2018-09-06

Process for the regeneration of an alkaline solution used in a process for the extraction of sulphur-containing compounds not comprising a washing step

#59
20180237301
2018-08-23

Carbon nanotube laminates

#60
20180170777
2018-06-21

PROCESS FOR OXIDIZING ONE OR MORE THIOL COMPOUNDS AND SUBSEQUENT SEPARATION IN A SINGLE VESSEL

#61
20170369349
2017-12-28

Bio-assisted process for the treatment and regeneration of spent caustic

#62
20170306247
2017-10-26

WATER-BASED FORMULATION OF H2S/MERCAPTAN SCAVENGER FOR FLUIDS IN OILFIELD AND REFINERY APPLICATIONS

#63
20170283280
2017-10-05

Method for the desalination of supersaturated hot water

#64
20170267564
2017-09-21

Method for degrading artificial sweeteners from sewage

#65
20170267562
2017-09-21

Process of treating buchu mercaptan production wastewater using microalgae and chitin as a nitrogen source

#66
20170260074
2017-09-14

ENZYMES FOR REMOVING SULFUROUS COMPOUNDS IN DOWNHOLE FLUIDS

#67
20170253517
2017-09-07

Method and apparatus for the treatment of waste

#68
20170253507
2017-09-07

Treatment of organic contaminated materials with manganese oxide media

#69
20170225983
2017-08-10

Reduction of hydrogen sulfide and/or malodor gassing from water via the addition of peroxyacetic acid/hydrogen peroxide product

#70
20170216768
2017-08-03

Method of scavenging hydrogen sulfide and mercaptans using well treatment composites

#71
20170158526
2017-06-08

Process for decontamination of hazardous sulfur compounds in oilfield produced waters

#72
20170152166
2017-06-01

Catalytic oxidation of aqueous organic contaminants

#73
20170144908
2017-05-25

System and method for treatment of spent caustic wastewater

#74
20160368786
2016-12-22

Surfactant removal from produced waters

#75
20160326020
2016-11-10

Method for treatment of drill cuttings

#76
20160326019
2016-11-10

Method for recycling oilfield and other wastewater

#77
20150329397
2015-11-19

Process of treating buchu mercaptan production wastewater using microalgae and chitin as a nitrogen source

#78
20150197438
2015-07-16

Reduction of hydrogen sulfide and/or malodor gassing from water via the addition of peroxyacetic acid/hydrogen peroxide product

#79
20150041333
2015-02-12

Wastewater treatment process by electrochemical apparatus

#80
20150034566
2015-02-05

Water treatment

#81
20150034551
2015-02-05

Process for treating effluents from the production of an aromatic compound derived from a dihydroxylated benzene

#82
20140332463
2014-11-13

Reduction of hydrogen sulfide and/or malodor gassing from water via the addition of peroxyacetic acid/hydrogen peroxide product

#83
20140325700
2014-10-30

Thifensulfuron hydrolase gene tsmE and uses thereof

#84
20130032541
2013-02-07

SULFOLANE REMOVAL SYSTEM

#85
20120267318
2012-10-25

WATER TREATMENT SYSTEMS AND METHODS

#86
20120168352
2012-07-05

SYSTEMS AND METHODS FOR PROCESSING HYDROCARBON FEEDSTOCKS

#87
20120160778
2012-06-28

Sulfate molecule removal through inorganic or divalent ion nuclei seeding

#88
20120160770
2012-06-28

Process for reducing the sulfate concentration in a wastewater stream

#89
20120118804
2012-05-17

Process for decontamination of hazardous sulfur compounds in oilfield produced waters

#90
20120107914
2012-05-03

Microbial activity improvement agent, microbial activity improvement method, and biological waste treatment method

#91
20120085711
2012-04-12

PROCESS FOR THE OXIDATION OF WASTE ALKALI UNDER SUPERATMOSPHERIC PRESSURE

#92
20120080641
2012-04-05

Formulations for use in sulfur scale control in industrial water systems

#93
20120061316
2012-03-15

Biological treatment method for treating waste water and controlling COD loading rate per bacterium and COD concentration in effluent

#94
20110315921
2011-12-29

Water-based formulation of H2S/mercaptan scavenger for fluids in oilfield and refinery applications

#95
20110233139
2011-09-29

Treatment of water

#96
20110174334
2011-07-21

Inhibiting corrosion and scaling of surfaces contacted by sulfur-containing materials

#97
20110068060
2011-03-24

Waste water treatment systems and methods

#98
20110049061
2011-03-03

METHOD FOR TREATING ODOR IN WASTEWATER

#99
19190385
2026-06-02

High flux nanofiltration membrane

#100
19071555
2025-07-08

Water decontamination using nanocomposite

#101
19062203
2025-11-25

Water decontamination via CN@MoO/MgAlOnanocomposite

#102
18668672
2024-10-15

Water restoration system

#103
18487134
2024-03-12

Biological desulfurizer for removing organic sulfur in fracturing flowback fluid and application thereof

#104
18427742
2024-07-16

Method for treating sulfur-containing organic wastewater

#105
18138262
2023-11-07

Decontamination of water using guar gum derivatives and applications thereof

#106
15609452
2018-04-10

Chloroperoxidase-catalyzed degradation of pharmaceutical pollutants in wastewater