ClassID:

86674

C02F2307/00 - CPC Classification

Classification description:

Location of water treatment or water treatment device

Sub-classes:
Recent Application in this class:
#1
20260103398
2026-04-16

Portable Water Softener with Integrated Pre-Filter for RVs

#2
20250340456
2025-11-06

CHEMICAL ANALYSIS DEVICE

#3
20250282645
2025-09-11

System and Method for Reducing Target Material in a Liquid Flow

#4
20250187963
2025-06-12

Mobile Lagoon Cleaning Process and Sewer System

#5
20250074792
2025-03-06

WATER SOFTENER

#6
20250073763
2025-03-06

SYSTEMS FOR GROUNDWATER REMEDIATION AND METHODS OF GROUNDWATER REMEDIATION IN GEOLOGICAL FORMATIONS

#7
20250043562
2025-02-06

WATER INLET PROTECTION SYSTEM

#8
20250026673
2025-01-23

Metal Surface Treatment Using Oxygenated Water

#9
20240294404
2024-09-05

WATER SUPPLY SYSTEM

#10
20240059586
2024-02-22

Seawater RO desalination by pneumatic power tapped from offshore ocean wave energy

#11
20230038346
2023-02-09

Organic waste separator for under a sink

#12
20230018046
2023-01-19

Water inlet protection system

#13
20220332601
2022-10-20

Highway sponge-type composite side ditch carbon neutralization system and method thereof

#14
20220274063
2022-09-01

Wind-Powered Direct Air Carbon Dioxide Capture Device for Ocean Sequestration

#15
20220241727
2022-08-04

Sorbent emitter for direct air capture of carbon dioxide

#16
20210395125
2021-12-23

Modular system for waste treatment, water recycling, and resource recovery in a space environment

#17
20210387881
2021-12-16

Rural landscape-type nitrogen and phosphorus ecological interception ditch system and farmland drainage nitrogen and phosphorus interception method using the same

#18
20210362094
2021-11-25

Wind-Powered Direct Air Carbon Dioxide Capture for Ocean Sequestration

#19
20210155505
2021-05-27

Filter device particularly filter cartridge for water filters in aircraft

#20
20210146307
2021-05-20

Wind and wave desalination vessel

#21
20210046422
2021-02-18

Reverse osmosis water production apparatus

#22
20200308026
2020-10-01

Systems and methods for data center cooling and water desalination

#23
20200269165
2020-08-27

Underwater water treatment unit and method for cleaning said unit

#24
20200255310
2020-08-13

Water treatment reactors, systems and methods

#25
20200254388
2020-08-13

Ocean wave actuated gravitational desalination system

#26
20200198590
2020-06-25

Windshield washer reservoir conditioner

#27
20200131749
2020-04-30

Antimicrobial toilet with electrolyzer

#28
20190382971
2019-12-19

Device for vehicle hindrance and rainwater treatment and system comprising the same

#29
20190233201
2019-08-01

Pod and dispensing method

#30
20190231119
2019-08-01

SYSTEM FOR FILTERING LIQUID

#31
20190231115
2019-08-01

Dispensing apparatus and method

#32
20190047888
2019-02-14

TAIL WATER DECENTRALIZED TREATMENT AND DRAINAGE SYSTEM OF SEWAGE TREATMENT PLANT

#33
20190016620
2019-01-17

Closed-loop bioregenerative water purification system for the international space station (ISS) and for sustainable mars exploration

#34
20180244542
2018-08-30

Sterilization structure of water outlet and water treatment device containing same

#35
20180177163
2018-06-28

Overflow box and filter system for an aquarium

#36
20180023282
2018-01-25

WATER INLET PROTECTION SYSTEM

#37
20180023281
2018-01-25

Water inlet protection system

#38
20170349455
2017-12-07

Apparatus, method and system for desalinating water

#39
20170254062
2017-09-07

Water treatment apparatus

#40
20170217807
2017-08-03

Wastewater treatment systems and related methods

#41
20170135324
2017-05-18

Marine aquarium water purification and salinity control apparatus and method

#42
20170121925
2017-05-04

Situ treatment system and method for dewatering and stabilization of waste material deposits in waste impoundments

#43
20170113956
2017-04-27

Wetland roof technology for treating domestic wastewater

#44
20170089178
2017-03-30

Hydraulic geofracture energy storage system with desalination

#45
20170013812
2017-01-19

Aquarium undergravel filter

#46
20170007946
2017-01-12

Filter assembly for an appliance

#47
20160376782
2016-12-29

Water inlet filter system

#48
20160376168
2016-12-29

Low energy fluid purification system

#49
20160332601
2016-11-17

Vehicular windshield washer fluid replenishing system

#50
20160326715
2016-11-10

System and method for dewatering slurries

#51
20160236944
2016-08-18

Wastewater treatment systems and related methods

#52
20160176740
2016-06-23

Seawater desalination system and seawater desalination method

#53
20160128286
2016-05-12

Irrigation filter system

#54
20160120156
2016-05-05

Aquarium filter

#55
20160095301
2016-04-07

CLOSED LOOP FISH AND PLANT FARMING STRUCTURE AND METHOD

#56
20160083936
2016-03-24

Harvesting and Purification of Water From A Vehicle

#57
20160075580
2016-03-17

Method for removing scales in steam generation facility

#58
20150336804
2015-11-26

Compositions and methods for preparing copper-containing paper and uses thereof

#59
20150315047
2015-11-05

Apparatus and method for liquid pumping

#60
20150307364
2015-10-29

Liquid purification system

#61
20150291459
2015-10-15

SHIP BALLAST WATER TREATMENT SYSTEM

#62
20150203075
2015-07-23

Windshield washer conditioner

#63
20150144562
2015-05-28

Systems and methods for data center cooling and water desalination

#64
20150057153
2015-02-26

Methods and compositions for treating pollution

#65
20150027952
2015-01-29

Hydraulic geofracture energy storage system with desalinization

#66
20150014247
2015-01-15

Field water purification system filter

#67
20140332453
2014-11-13

Drainage device

#68
20140326680
2014-11-06

Salt water pool chlorinator having a sensor

#69
20140144835
2014-05-29

System and method for harvesting rainwater

#70
20130240419
2013-09-19

Windshield washer conditioner

#71
20130048555
2013-02-28

Field water purification system

#72
20120091046
2012-04-19

WATER RESERVOIR WITH A WATER PURIFICATION FUNCTION

#73
20100025339
2010-02-04

Field water purification system

#74
20090111694
2009-04-30

Methods and compositions for treating pollution

#75
19043971
2025-08-05

Wetland system for treatment of wastewater brine

#76
17725522
2023-01-24

Self-sufficient systems for carbon dioxide removal and sequestration

#77
15285813
2018-10-02

Methods and riser pipe for dewatering of fly ash pond or pit

#78
14944056
2017-12-05

Disposable filter for a sink

#79
14734597
2017-02-07

Method for the in situ remediation of contaminants