ClassID:

86634

C02F2301/02 - CPC Classification

Classification description:

General aspects of water treatment Fluid flow conditions

Sub-classes:
Recent Application in this class:
#1
20260138902
2026-05-21

WASTEWATER TREATMENT SYSTEMS AND METHODS INVOLVING A BIOLOGICALLY ACTIVE CONDUIT

#2
20260131376
2026-05-14

LOW-SULFUR GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#3
20260054312
2026-02-26

TREATING COOLING WATER IN IRON PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#4
20260049006
2026-02-19

METHODS AND SYSTEMS FOR RECYCLING MATERIALS DURING PFAS DESTRUCTION

#5
20260048434
2026-02-19

LOW-CARBON GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#6
20260034581
2026-02-05

USE OF RESIDUAL IRON WITHIN GRANULATED METALLIC UNIT PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#7
20260001124
2026-01-01

CONTINUOUS GRANULATED METALLIC UNITS PRODUCTION, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#8
20250353076
2025-11-20

USE OF A BASIC OXYGEN FURNACE TO PRODUCE GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#9
20250296853
2025-09-25

FLUID DECONTAMINATION APPARATUS

#10
20250250186
2025-08-07

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

#11
20250223209
2025-07-10

WATER TREATMENT SYSTEM WITH BIOCONTACTOR

#12
20250197247
2025-06-19

HYBRID FILTER AND SYSTEMS AND METHODS FOR ISOLATING MODULES

#13
20250083980
2025-03-13

TREATING COOLING WATER IN IRON PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#14
20250083232
2025-03-13

CONTINUOUS GRANULATED METALLIC UNITS PRODUCTION, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#15
20250083231
2025-03-13

USE OF RESIDUAL IRON WITHIN GRANULATED METALLIC UNIT PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#16
20250083230
2025-03-13

USE OF A BASIC OXYGEN FURNACE TO PRODUCE GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#17
20250083224
2025-03-13

LOW-CARBON GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#18
20250083223
2025-03-13

LOW-SULFUR GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#19
20240262713
2024-08-08

FLUID DECONTAMINATION APPARATUS

#20
20240158272
2024-05-16

WATER TREATMENT WITH OIL

#21
20230382775
2023-11-30

METHOD FOR EXTRACTING SALTS AND TEMPERATURE-REGENERATED EXTRACTING COMPOSITION

#22
20230339784
2023-10-26

FLUID TREATMENT DEVICE

#23
20230249999
2023-08-10

Sewage treatment biological agent and preparation method and application thereof

#24
20220288536
2022-09-15

PERMEATE FLOW PATERNS

#25
20220274034
2022-09-01

WATER TREATMENT CARTRIDGE

#26
20220242762
2022-08-04

Wastewater treatment apparatus and process therefor

#27
20210253452
2021-08-19

ELECTROCHEMICAL FLOW REACTOR

#28
20210214254
2021-07-15

Method for extracting salts and temperature-regenerated extracting composition

#29
20210214240
2021-07-15

Irrigation liquid filtration system

#30
20210206661
2021-07-08

Method for treating a fluid by upflow through a bed of adsorbent media

#31
20210163315
2021-06-03

Liquid treatment method and apparatus

#32
20210079429
2021-03-18

MULTIPLE TANK HIGH SOLIDS ANAEROBIC DIGESTER

#33
20200399140
2020-12-24

Fluid decontamination apparatus

#34
20200239335
2020-07-30

Water treating equipment providing coalescence and flotation within a single vessel

#35
20190358590
2019-11-28

Permeate flow paterns

#36
20190321506
2019-10-24

FLOWING FLUID DISINFECTION METHOD AND DISINFECTOR

#37
20190276332
2019-09-12

Fluid decontamination apparatus

#38
20190234927
2019-08-01

Simulation device and method for studying the influence of wetland plant litter decomposition on water quality

#39
20190177187
2019-06-13

Liquid treatment device

#40
20190054201
2019-02-21

Flowing fluid disinfection method and disinfector

#41
20180353874
2018-12-13

LIQUID PURIFICATION DEVICE

#42
20180328006
2018-11-15

For diluting or concentrating solutions, applied to processes for the desalination of water

#43
20180179878
2018-06-28

Method and system for subsea separation of produced water

#44
20180118586
2018-05-03

Device for treating water to reduce the size of the water clusters, increase dissolved oxygenation levels, produce free hydrogen atoms, produce

#45
20180043309
2018-02-15

Filtration assembly including spiral wound bioreactors and membrane modules positioned in separate pressure vessels

#46
20180036684
2018-02-08

Filtration assembly including spiral wound bioreactors and hyperfiltration membrane modules

#47
20170283833
2017-10-05

Multiple tank high solids anaerobic digester

#48
20170210638
2017-07-27

Standalone humidification-dehumidification water purification method and system

#49
20170081214
2017-03-23

Water treating equipment providing coalescence and flotation within a single vessel

#50
20170043279
2017-02-16

SYSTEM HAVING FOAM BUSTING NOZZLE AND SUB-SURFACE MIXING NOZZLE

#51
20160244350
2016-08-25

Nozzled confined container for treating sludge

#52
20160115056
2016-04-28

Container, series of containers and method for treating liquids

#53
20160075583
2016-03-17

Solids removal system and method

#54
20160039684
2016-02-11

Water treating equipment providing coalescence and flotation within a single vessel

#55
20150251935
2015-09-10

Water treatment device

#56
20150111271
2015-04-23

Multiple tank high solids anaerobic digester

#57
20150014246
2015-01-15

Wastewater treatment apparatus and process therefor

#58
20140367327
2014-12-18

Wastewater treatment plant

#59
20140291239
2014-10-02

Wastewater treatment method and equipment using a dual-diffusion oxygen supply horizontal-flow biofilm

#60
20140021132
2014-01-23

Water treatment apparatus with circulating flow path and water treatment method using the same

#61
20130126448
2013-05-23

Solids removal system and method

#62
20120318737
2012-12-20

Processes and apparatus for inhibiting membrane bio-fouling

#63
20120103882
2012-05-03

Device for Clarifying Wastewater Preferably on Ships

#64
20120006762
2012-01-12

Solids removal system and method

#65
20110303544
2011-12-15

Apparatus for fluid purification and methods of manufacture and use thereof

#66
20110272360
2011-11-10

Method for operating ion exchange equipment

#67
20110233144
2011-09-29

Solids removal system and method

#68
20110192476
2011-08-11

Water purification apparatus and method

#69
20110180633
2011-07-28

System having foam busting nozzle and sub-surface mixing nozzle

#70
20110155567
2011-06-30

DEODORIZATION MODULE AND FOOD WASTE TREATMENT APPARATUS HAVING THE SAME

#71
20110024365
2011-02-03

Baffle plates for an ultraviolet reactor

#72
20100187437
2010-07-29

Double-walled chamber for ultra violet radiation treatment of liquids

#73
20100140096
2010-06-10

ELECTRODE FOR CAPACITIVE DEIONIZATION, CAPACITIVE DEIONIZATION DEVICE AND ELECTRIC DOUBLE LAYER CAPACITOR INCLUDING THE ELECTRODE

#74
20100078369
2010-04-01

DEVICE FOR TREATING AND PURIFYING A LIQUID PRODUCT

#75
20090159531
2009-06-25

Treatment of contaminated fluids

#76
20090071887
2009-03-19

Thermal water treatment device

#77
20080311012
2008-12-18

Transmissive window for hydrooptic disinfection system

#78
20080296214
2008-12-04

Apparatus for supporting chemical tablets

#79
20080264853
2008-10-30

Filter cartridge for jugs

#80
20080105548
2008-05-08

Apparatus for fluid purification

#81
20070256981
2007-11-08

Composite adsorbent block for the treatment of contaminated fluids

#82
20070241060
2007-10-18

Hydrodynamic Homogenization

#83
20070119922
2007-05-31

Method, device and system of illumination-based disinfection

#84
20070119503
2007-05-31

Method and apparatus for preventing drain line clogging over an extended time using liquid or solid biocides

#85
20060144795
2006-07-06

Fluid treatment apparatus

#86
20060096925
2006-05-11

Water conversion device

#87
20060011560
2006-01-19

Thermal water treatment method

#88
20060011556
2006-01-19

Double-walled chamber for ultraviolet radiation treatment of liquids

#89
20050046055
2005-03-03

Environmental remediation method and apparatus

#90
20050045544
2005-03-03

Environmental remediation apparatus

#91
15883906
2021-01-19

Chemical delivery system for AC drain line

#92
15731462
2019-10-22

Treatment of source water

#93
15731461
2019-10-22

Treatment of source water

#94
13618731
2015-08-18

Apparatus for filtering and/or conditioning and/or purifying a fluid such as water, and interface thereof for providing water boiler expansion pressure relief