ClassID:

86535

C02F2201/004 - page 2 - CPC Classification

Classification description:

Apparatus for treatment of water, waste water or sewage; Construction details of the apparatus Seals, connections

Recent Application in this class:
#301
20190185347
2019-06-20

Portable Water Filtration Assembly

#302
20190184314
2019-06-20

Outside-in water purification system

#303
20190144299
2019-05-16

POINT-OF-USE WATER TREATMENT SYSTEM

#304
20190144298
2019-05-16

HIGH-STRENGTH INTEGRATED WATER CHANNEL PACK

#305
20190135656
2019-05-09

Customizable multi-stage water treatment system

#306
20190106333
2019-04-11

Filter cartridge

#307
20190084846
2019-03-21

System for treating water

#308
20190076759
2019-03-14

Water machine with unaffected water purification under disassembly and using method thereof

#309
20190071329
2019-03-07

Capacitive deionisation

#310
20190070534
2019-03-07

Water container with floatable filter system and method

#311
20190060807
2019-02-28

Purification device

#312
20190060806
2019-02-28

Purification device

#313
20190060805
2019-02-28

Purification device

#314
20190047889
2019-02-14

Compact water purification unit

#315
20190047874
2019-02-14

Water filtration system

#316
20190046927
2019-02-14

Desalination

#317
20190039000
2019-02-07

Underdrain system using one-piece cell dividers

#318
20190016613
2019-01-17

SYSTEM AND METHOD OF IONIZING A FLUID

#319
20190010064
2019-01-10

Electrode module, electrochemical reactor, and water treatment apparatus

#320
20190010063
2019-01-10

DEIONIZATION DEVICE

#321
20180371629
2018-12-27

Electrochemical cell comprising electrically conductive diamond electrodes

#322
20180362363
2018-12-20

Integrated apparatus for chemical precipitation and rapid filtration of water samples

#323
20180362362
2018-12-20

Method of leak testing the seals in a water filter cartridge

#324
20180361302
2018-12-20

Exhaust gas purifying and heat recovering system and method for sludge treatment

#325
20180345186
2018-12-06

Filter cartridge for translational insertion and rotational engagement of a manifold

#326
20180328006
2018-11-15

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

#327
20180318739
2018-11-08

Head assembly for water purification filter

#328
20180305220
2018-10-25

PRESSURE VESSEL FOR WATER TREATMENT SYSTEM

#329
20180290085
2018-10-11

Water filter system

#330
20180283027
2018-10-04

Pool cleaner

#331
20180257958
2018-09-13

Water filtration system

#332
20180257957
2018-09-13

Water filtration system

#333
20180244546
2018-08-30

ZINC ION WATER TREATMENT DEVICE AND MANUFACTURING METHOD THEREFOR

#334
20180208485
2018-07-26

Fluid treatment system

#335
20180207563
2018-07-26

Faucet filtration system and related methods

#336
20180207560
2018-07-26

Water container with floatable filter system and method

#337
20180193779
2018-07-12

Electrically enhanced filter cartridge and methods for its use

#338
20180127294
2018-05-10

Composite filter cartridge

#339
20180104627
2018-04-19

Liquid treatment apparatus with replaceable treatment cartridge and cartridge connection system

#340
20180085690
2018-03-29

Liquid filter assembly

#341
20180050926
2018-02-22

Multi-stage filter assembly

#342
20180043309
2018-02-15

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

#343
20180036684
2018-02-08

Filtration assembly including spiral wound bioreactors and hyperfiltration membrane modules

#344
20180021730
2018-01-25

Connecting mechanism for a water purification cartridge

#345
20180016164
2018-01-18

Electrolytic cartridge, systems and methods of using same

#346
20180016161
2018-01-18

Liquid treatment cartridge, set of such cartridges and method of manufacturing it

#347
20180015400
2018-01-18

Water purifying filter

#348
20180015399
2018-01-18

Water purifying filter

#349
20180015397
2018-01-18

WATER PURIFYING FILTER AND REFRIGERATOR HAVING THE SAME

#350
20180001240
2018-01-04

Filters for Non-Plumbed Appliances

#351
20180001239
2018-01-04

Filters for Non-Plumbed Appliances

#352
20170361275
2017-12-21

Reverse osmosis system control valves

#353
20170356210
2017-12-14

ADAPTABLE NET

#354
20170356209
2017-12-14

Floating pool dispenser

#355
20170327273
2017-11-16

Water storage tank bladder, manufacturing method therefor, water storage tank including bladder, and water treatment apparatus including water storage tank

#356
20170320757
2017-11-09

Rod-Shaped Electrolysis Device

#357
20170319992
2017-11-09

Water filtration system and water filtration system housing with closing assembly

#358
20170297927
2017-10-19

Reverse osmosis systems with built in pressure regulation

#359
20170291142
2017-10-12

LIQUID PURIFICATION SYSTEM

#360
20170284722
2017-10-05

Filters for Non-Plumbed Appliances

#361
20170283281
2017-10-05

Reversible filtration system

#362
20170283277
2017-10-05

Solar thermal device for the treatment of drinking water

#363
20170282104
2017-10-05

FLUID FILTER WITH OPTICAL KEY AND MANIFOLD WITH OPTICAL LOCK

#364
20170282102
2017-10-05

Liquid filtration systems, components, and methods

#365
20170266589
2017-09-21

Filter element and filter device

#366
20170259196
2017-09-14

Modular filtration platform

#367
20170247849
2017-08-31

Pumping system for bodies of water

#368
20170233268
2017-08-17

Apparatus for preparing and dispensing a flocculant solution to dewatering an aqueous process stream

#369
20170197159
2017-07-13

Water stoppage structure utilized in a water purifier filter core

#370
20170137304
2017-05-18

Water conditioning systems

#371
20170137303
2017-05-18

Water conditioning systems having diversion devices

#372
20170136412
2017-05-18

Fluid conditioning systems having caps with filter cartridge sealing and removal devices and/or locking devices

#373
20170128863
2017-05-11

Water filtration device for purifying water

#374
20170119204
2017-05-04

Universal water filter assembly for multiple coffee makers

#375
20170087484
2017-03-30

Liquid processing apparatus

#376
20170081230
2017-03-23

Conversion of clarifier to suction pipe system

#377
20170072347
2017-03-16

Filter cartridge for translational insertion and rotational engagement of a manifold

#378
20170066664
2017-03-09

CONNECTION TYPE REVERSE OSMOSIS (RO) WATER PURIFIER

#379
20170065935
2017-03-09

Integrated waterway assembly of a reverse osmosis water filtration device

#380
20170065914
2017-03-09

Water container with floatable filter

#381
20170029294
2017-02-02

Apparatus for treating water or liquids in general

#382
20170015543
2017-01-19

Translating treatment cartridge, fluid dispensing system, and method of using

#383
20170008777
2017-01-12

ADAPTER FOR CONNECTING AT LEAST TWO PLASTIC BOTTLES

#384
20170007949
2017-01-12

Water filter cartridge

#385
20160355423
2016-12-08

OZONE FAUCET SWITCHING STRUCTURE

#386
20160340202
2016-11-24

Point-of-use water treatment system

#387
20160326012
2016-11-10

FILTER ASSEMBLY

#388
20160271538
2016-09-22

Locking-unlocking structure for stopping lifting body, which is lifted and fallen through repetition of pushing actions, in lifting state and for releasing stopping state of lifting body

#389
20160271537
2016-09-22

Locking-unlocking structure for guiding forward lifting of lifting body by repeating pushing action

#390
20160271521
2016-09-22

FILTERING DEVICE

#391
20160263504
2016-09-15

Filter device comprising gear driving assembly

#392
20160244337
2016-08-25

Customizable multi-stage water treatment system

#393
20160236117
2016-08-18

Liquid filter device

#394
20160235043
2016-08-18

Aquarium filter with water stream diversion system and method of use thereof

#395
20160200596
2016-07-14

Elevated well for brine tank in water softener

#396
20160199763
2016-07-14

T-housing for septic tank

#397
20160185628
2016-06-30

Apparatus for purifying a fluid and method for the attainment thereof

#398
20160176723
2016-06-23

APPARATUS FOR ENHANCING THE BIOPHYSICAL EFFECTS OF WATER

#399
20160175743
2016-06-23

Water filter cartridge with slanted nozzles

#400
20160153100
2016-06-02

Gasket and electrolyser

#401
20160152488
2016-06-02

Water purifier

#402
20160136551
2016-05-19

External filter seal

#403
20160097135
2016-04-07

Bipolar-electrode electrolytic cell

#404
20160089618
2016-03-31

Ion-exchanger

#405
20160082392
2016-03-24

Reverse osmosis push filter with floating key lock

#406
20160057948
2016-03-03

Solar still system and related solar driven irrigation apparatus

#407
20160052801
2016-02-25

UV lamp module with exchangeable lamp units

#408
20160051962
2016-02-25

Sonic reactor

#409
20160030986
2016-02-04

Washing device for water treatment apparatus and washing method thereof

#410
20160030985
2016-02-04

Washing device for water treatment apparatus and washing method thereof

#411
20160030866
2016-02-04

Water filtration system and water filtration system housing with closing assembly

#412
20160009570
2016-01-14

Liquid purification apparatus and method

#413
20150353391
2015-12-10

Ozone faucet switching structure

#414
20150336814
2015-11-26

Reverse osmosis systems with built in pressure regulation

#415
20150328587
2015-11-19

Filtering apparatus

#416
20150307365
2015-10-29

Water filter cartridge and manifold head seal

#417
20150290568
2015-10-15

System for detecting a liquid and a water filter assembly

#418
20150284274
2015-10-08

Chemical feeder

#419
20150274544
2015-10-01

Filtration apparatus

#420
20150239749
2015-08-27

Fluid vessel with removable and reversible filtration unit

#421
20150182916
2015-07-02

Hollow fiber membrane module

#422
20150165356
2015-06-18

Squeezable beverage bottle and filter system

#423
20150129776
2015-05-14

Point of use water treatment device

#424
20150114895
2015-04-30

Filter unit

#425
20150028224
2015-01-29

Radiation source cleaning system and module containing same

#426
20150014550
2015-01-15

Latching method ensuring device can be sealed reliably and ultra-violet liquid processing device

#427
20150008173
2015-01-08

Manifold bracket assembly for a modular encapsulated water treatment system

#428
20140374335
2014-12-25

Water filter system

#429
20140373328
2014-12-25

Device for mounting flexible, profiled hollow cylinders unto cylindrical elements

#430
20140360941
2014-12-11

Reverse osmosis treatment apparatus

#431
20140326680
2014-11-06

Salt water pool chlorinator having a sensor

#432
20140319033
2014-10-30

Water filter assembly

#433
20140299792
2014-10-09

Sealing about a quartz tube

#434
20140284298
2014-09-25

Feeding bottle for preparation of a nutritional composition

#435
20140263077
2014-09-18

Apparatus and method for applying magnetic fields to fluid flows

#436
20140238920
2014-08-28

Disposable filter cartridge for water dispenser

#437
20140217000
2014-08-07

System including a water treatment tank and a device for interfering with the removal of a riser tube from the water treatment tank

#438
20140202944
2014-07-24

Liquid filtration systems, components, and methods

#439
20140175005
2014-06-26

Filter assembly and systems/methods of dispensing from and storing the filter assembly

#440
20140158602
2014-06-12

Water filtration device and filter therefor

#441
20140158542
2014-06-12

Water softening apparatus

#442
20140144822
2014-05-29

Filter unit with flow regulator

#443
20140138292
2014-05-22

Electronic interface for water filtration system

#444
20140131289
2014-05-15

Customizable multi-stage water treatment system

#445
20140131265
2014-05-15

Customizable multi-stage water treatment assembly

#446
20140116928
2014-05-01

Water treatment system

#447
20140054166
2014-02-27

Bipolar cell for a reactor

#448
20140048464
2014-02-20

Fluid purifying apparatus

#449
20140042073
2014-02-13

LIQUID FILTER HOUSING WITH HANDLES

#450
20140021122
2014-01-23

Seawater desalination system and energy exchange chamber

#451
20140021052
2014-01-23

Electrodialysis unit for water treatment

#452
20140021040
2014-01-23

Bipolar-electrode electrolytic cell

#453
20140008547
2014-01-09

Sleeve holder assembly

#454
20140008276
2014-01-09

Water purifying cartridge and pitcher-type water purifier

#455
20130270168
2013-10-17

Integral filter compression seal

#456
20130264262
2013-10-10

Universal filter system for fluid containers

#457
20130234037
2013-09-12

Radiation source assembly

#458
20130206695
2013-08-15

Combination unit and combination method of multiple membrane shells

#459
20130180858
2013-07-18

Electric device for producing deionized water

#460
20130168309
2013-07-04

Water filter faucet and cartridge therefor

#461
20130134097
2013-05-30

Mobile system for treatment of water by deionization

#462
20130118347
2013-05-16

Device and method for degassing aqueous media

#463
20130106097
2013-05-02

Structure for fastening outlet module of water purifier

#464
20130105374
2013-05-02

Water filter

#465
20130098820
2013-04-25

Cartridges for bulk feeders

#466
20130081709
2013-04-04

Faucet mountable water conditioning devices

#467
20130068684
2013-03-21

FILTER UNIT

#468
20130068683
2013-03-21

FILTER UNIT

#469
20130068682
2013-03-21

Water filter system

#470
20130068681
2013-03-21

Water filter unit

#471
20130068672
2013-03-21

Electronic interface for water filter system

#472
20130068670
2013-03-21

Filter unit

#473
20130068612
2013-03-21

Electrolysis water-making apparatus

#474
20130067718
2013-03-21

Method of installing a filter unit

#475
20130062532
2013-03-14

ULTRAVIOLET IRRADIATION APPARATUS

#476
20130062266
2013-03-14

Water filtration system and water filtration system housing with closing assembly

#477
20130056425
2013-03-07

METHOD AND APPARATUS FOR SOLAR-BASED WATER DISINFECTION

#478
20130056402
2013-03-07

SEALING STRUCTURE, FLUID TREATMENT UNIT, FLUID TREATMENT DEVICE AND MANUAL SWITCHING MECHANISM THEREFOR

#479
20130048550
2013-02-28

WATER TREATMENT SYSTEM WITH SEALING ENCLOSURE

#480
20130043174
2013-02-21

Filter system with removable enhancement media

#481
20130037474
2013-02-14

Filter assembly

#482
20130037469
2013-02-14

INTEGRATED WATER FILTER AND CONTAINER

#483
20130026090
2013-01-31

Spiral wound element and seal assembly

#484
20130026041
2013-01-31

UNIVERSAL ADAPTER WITH MAGNETIC MODULE

#485
20120305457
2012-12-06

WATER FILTER AND ALERT ASSEMBLY FOR BATHROOM USE

#486
20120298569
2012-11-29

Reverse osmosis system

#487
20120279914
2012-11-08

Filter cartridge with a positioning cylinder for holding filter element in place

#488
20120267314
2012-10-25

Gravity powered liquid purification system

#489
20120261322
2012-10-18

Water filtering device

#490
20120261255
2012-10-18

Electrolysis water-making apparatus

#491
20120258156
2012-10-11

SHAPED COMPOSITIONS FOR UNIFORM DELIVERY OF A FUNCTIONAL AGENT

#492
20120255623
2012-10-11

Faucet mountable water conditioning systems

#493
20120248330
2012-10-04

Ultraviolet sterilizer having watertight function

#494
20120248019
2012-10-04

APPARATUS FOR ENHANCING THE BIOPHYSICAL EFFECTS OF WATER

#495
20120228206
2012-09-13

Easy-fit filter device for a water purifier

#496
20120222999
2012-09-06

Water purifier

#497
20120193819
2012-08-02

COUPLING ELEMENT FOR CONNECTING AN AERATION BODY WITH THE FEED LINE OF A WATER AERATING DEVICE

#498
20120160701
2012-06-28

Disposable Electrolytic Cell having Bipolar Electrodes, and Method of Use Thereof

#499
20120153183
2012-06-21

Radiation source assembly

#500
20120145622
2012-06-14

Multi-purpose filter cartridge assembly

#501
20120067377
2012-03-22

Washing device for water treatment apparatus and washing method thereof

#502
20120061313
2012-03-15

Adjustable ventilation stack for a water filter system

#503
20120061309
2012-03-15

Seawater desalination system and energy exchange chamber

#504
20120014844
2012-01-19

Device for altering molecular bonds in fluids

#505
20120006729
2012-01-12

WATER PURIFIER

#506
20120000860
2012-01-05

Device for purifying fluid

#507
20110315262
2011-12-29

SYSTEM AND METHOD FOR COMMUNICATION BETWEEN FILTERS AND FAUCETS

#508
20110314655
2011-12-29

Method for producing radiation modules

#509
20110303608
2011-12-15

Desalination System

#510
20110303543
2011-12-15

Electrically enhanced filter cartridge and methods for its use

#511
20110297624
2011-12-08

SHOWERHEAD FILTER ASSEMBLY AND METHOD OF PURIFICATION

#512
20110290797
2011-12-01

High residence time mixing tank system

#513
20110278207
2011-11-17

Filter system with removable enhancement media

#514
20110253636
2011-10-20

Chemical administrator for controllably treating wastewater

#515
20110240880
2011-10-06

FLUID TREATMENT SYSTEM

#516
20110227473
2011-09-22

Radiation lamp and radiation source module incorporating same

#517
20110220813
2011-09-15

Ultraviolet water treatment apparatus

#518
20110220641
2011-09-15

Water treatment pressure vessel having internal conical distributor plates

#519
20110220592
2011-09-15

Filtering methods and configurations

#520
20110215054
2011-09-08

Method and apparatus for solar-based water disinfection

#521
20110204254
2011-08-25

Ultraviolet treatment chambers with forced-orientation lamp and socket assembly

#522
20110203985
2011-08-25

KEYED SYSTEM FOR CONNECTION OF FILTER TO FILTER HOLDER

#523
20110198279
2011-08-18

Beverage bottle filter system

#524
20110180464
2011-07-28

Shut off valve for a reverse osmosis water filtration system

#525
20110168644
2011-07-14

Bottle with an integrated filtration assembly that is manually operated using a plunger

#526
20110155657
2011-06-30

TEE-CONNECTOR FOR USE IN A FILTRATION SYSTEM

#527
20110100885
2011-05-05

Ballast water treatment device

#528
20110089171
2011-04-21

WASTEWATER TREATMENT PROCESS BASINS

#529
20110042280
2011-02-24

Bag Path Fluid Filter Assembly

#530
20100300951
2010-12-02

Gray Water Recycling System

#531
20100282473
2010-11-11

Aerator for a well water pumping system

#532
20100275633
2010-11-04

Water filter device and refrigerator having the same

#533
20100237254
2010-09-23

FLUID TREATMENT APPARATUS COMPRISING ULTRAVIOLET LIGHT EMITTING DIODE

#534
20100025337
2010-02-04

Self-contained UV-C purification system

#535
20100024893
2010-02-04

Reverse Osmosis Filtration Systems

#536
20090294689
2009-12-03

Fluid treatment system

#537
20090196802
2009-08-06

DISINFECTION SYSTEM WITH AN IMMERSION EMITTER

#538
20090134341
2009-05-28

Fluid ultraviolet sterilization system

#539
20090084734
2009-04-02

Ultraviolet water purification system

#540
20090065413
2009-03-12

Ultraviolet radiation lamp and source module and treatment system containing same

#541
20080290776
2008-11-27

Lamp-ballast-system with integrated cooling circuit

#542
20080246402
2008-10-09

Ultraviolet lamp for use in water purifiers

#543
20080182455
2008-07-31

Radiation lamp and radiation source module incorporating same

#544
20080182454
2008-07-31

Ultraviolet lamp for use in water purifiers

#545
20080131337
2008-06-05

Sterilizer

#546
20080076281
2008-03-27

Snap-lock connector

#547
20070298639
2007-12-27

Radiation lamp and radiation source module incorporating same

#548
20070284540
2007-12-13

Fluid treatment system

#549
20070248487
2007-10-25

SYSTEMS AND PROCESSES FOR DISINFECTING LIQUIDS

#550
20070241288
2007-10-18

ULTRAVIOLET LAMP FOR WATER STERILIZATION

#551
20070202738
2007-08-30

Ultraviolet lamp for use in water purifiers

#552
20070125713
2007-06-07

Water purifier with UV and adsorbent

#553
20070114442
2007-05-24

Fluid ultraviolet sterilization system

#554
20070076442
2007-04-05

Disconnect and locking system and method of disassembly and reassembly

#555
20070045165
2007-03-01

Reverse osmosis filtration systems

#556
20070012883
2007-01-18

Ultraviolet water sterilizer

#557
20060283793
2006-12-21

Ultraviolet treatment unit and septic tank system

#558
20060186782
2006-08-24

Reverse pin ultraviolet germicidal lamp system

#559
20050199536
2005-09-15

Filter housing

#560
19229043
2025-11-18

Intelligent wastewater purification and treatment device

#561
19202624
2025-11-11

Ozone disinfection bottle or cup

#562
19048066
2026-04-07

Water filter and home appliance having same

#563
19040213
2025-10-14

Water filtering devices and methods of using the same

#564
19023327
2025-07-29

Connection structure for filtration device

#565
19022300
2025-05-27

Graphene electrostatic filtering device

#566
18752136
2025-03-18

Portable water pump used in a pool

#567
18336975
2023-10-24

Vacuum-flocculation-solidification integrated apparatus for waste mud and using method thereof

#568
17822427
2022-12-27

Stormwater capture housing system

#569
17815347
2023-11-28

Water filter system for domestic and commercial use

#570
17709551
2025-05-13

Modular porous swale

#571
17566815
2022-04-26

Water filter system head with interchangeable inlet and outlet connections

#572
17522017
2022-03-15

Utility cart with aqueous ozone solution faucet, flexible output line, and docking station for spray devices

#573
17489028
2022-02-15

Swirling flow generator for membrane distillation

#574
17145676
2023-05-02

Multi-stage filter assembly

#575
17117244
2022-05-17

Modular porous swale

#576
16908212
2020-11-03

Water filtration device and method for re-circulating filtered water in decorative waterways

#577
16732392
2022-02-22

Internal connector for modular fluid treatment system

#578
16243243
2023-11-21

Convertible head for deionization vessels

#579
15933919
2018-07-03

Water filter system

#580
15674698
2020-03-24

Storm drain filter and method of installation

#581
15170303
2017-06-13

Swimming pool cleaner inline debris trap and associated methods

#582
15004621
2018-02-27

Water filter cartridge with improved leak indicator