ClassID:

86269

C02F1/487 - CPC Classification

Classification description:

Treatment of water, waste water, or sewage with magnetic or electric fields using high frequency electromagnetic fields, e.g. pulsed electromagnetic fields

Recent Application in this class:
#1
20250313494
2025-10-09

Water Treatment Devices and Methods

#2
20250282658
2025-09-11

EMF Generator To Selectively Tune the Generated EMF to Specific Frequencies Using a Pulse-width Modulator and Methods Related Thereto

#3
20250250186
2025-08-07

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

#4
20240317617
2024-09-26

METHOD FOR PHYSICAL TREATMENT OF LIQUID OR GASEOUS MEDIA AND DEVICE FOR PHYSICAL TREATMENT OF LIQUID OR GASEOUS MEDIA

#5
20240286936
2024-08-29

SYSTEM AND METHOD FOR ELECTROENERGIZING WATER AND AQUEOUS SOLUTIONS FOR USE IN AGRICULTURE AND LIVESTOCK FARMING, ELECTROENERGIZED FLUID AND CORRESPONDING USE

#6
20240239697
2024-07-18

WATER PURIFICATION REPLICATING A KNOWN POPULAR SOURCE

#7
20240199453
2024-06-20

WATER TREATMENT DEVICE USING ELECTROSTATIC FIELD

#8
20240092661
2024-03-21

DISINFECTION OF WATER USING PULSED ELECTRIC FIELDS

#9
20240080950
2024-03-07

MICROWAVE WASTE HEATING SYSTEM AND RELATED FEATURES

#10
20240067541
2024-02-29

Apparatuses and methods for treating biofilm and legionella in cooling tower systems

#11
20240043286
2024-02-08

WATER ACTIVATION DEVICE AND CONTAINER

#12
20230249194
2023-08-10

A Process for Removing Micropollutants in Liquid or Gas

#13
20230202867
2023-06-29

MAGNETIZATION CONTROL APPARATUS FOR PREVENTING CLOGGING OF DRIP IRRIGATION SYSTEM IRRIGATOR AND CONTROL METHOD THEREOF

#14
20230166990
2023-06-01

TREATING WATER USING A NON-UNIFORM MAGNETIC FIELD

#15
20230099118
2023-03-30

SYSTEMS AND METHODS FOR ENHANCING THE EFFICIENCY OF SEPARATION PROCESSES

#16
20220402785
2022-12-22

SYSTEMS AND METHODS FOR CLEANING AND STERILIZING FLUIDS AND ARTICLES USING ELECTROMAGNETIC WAVES

#17
20220330746
2022-10-20

Device for treating fluids and associated method

#18
20220330498
2022-10-20

METHOD AND SYSTEM FOR TREATING IRRIGATION WATER

#19
20210362123
2021-11-25

METHOD AND APPARATUS FOR CONDITIONING FLUIDS

#20
20210230026
2021-07-29

Treating saline water and other solvents with magnetic and electric fields

#21
20210139353
2021-05-13

Water treatment device

#22
20200404865
2020-12-31

Method and system for treating irrigation water

#23
20200385294
2020-12-10

Treating water using a non-uniform magnetic field

#24
20200346949
2020-11-05

Electromagnetic pulsed-wave system

#25
20200277209
2020-09-03

Systems and methods for desalinating water

#26
20200231475
2020-07-23

Active substance for sewage treatment and dewatering of solid domestic wastes landfills

#27
20200128765
2020-04-30

Method and system for treating irrigation water

#28
20190337822
2019-11-07

Magnetization and manipulation of hydrophobic absorbents

#29
20190300397
2019-10-03

Domestic appliance having a PEF unit

#30
20190233312
2019-08-01

Method and system for water electromagnetic activation and active metals generation

#31
20190225521
2019-07-25

SYSTEMS, APPARATUS, AND/OR METHODS FOR PROVIDING LIQUID TREATMENT COMPRISING AT LEAST ONE OF DISINFECTION, FILTRATION AND/OR PURIFICATION

#32
20190218118
2019-07-18

Devices systems and methods for conserving resources by treating liquids with electromagnetic fields

#33
20190169054
2019-06-06

Liquid waste treatment system

#34
20190152812
2019-05-23

Method for electromagnetic fluid treatment utilizing frequencies and harmonics

#35
20190151817
2019-05-23

PEF CHAMBER

#36
20190092652
2019-03-28

Purification apparatus with electrodeless bulb and methods of operation

#37
20190031538
2019-01-31

Electromagnetic pulsed-wave system for oil manipulation

#38
20190031537
2019-01-31

MAGNETIZATION CONTROL AND TRANSPORTATION OF OIL

#39
20180354823
2018-12-13

APPARATUS FOR REDUCING HARMFUL SUBSTANCE IN SEWAGE AND WASTE WATER FOR ECOTOXICITY REMOVAL AND SYSTEM COMPRISING THE SAME

#40
20180334397
2018-11-22

ELECTROMAGNETIC FIELD GENERATOR SYSTEM

#41
20180280916
2018-10-04

Apparatus for increasing gas components in a fluid

#42
20180280915
2018-10-04

Method for increasing gas components in a fluid

#43
20180265388
2018-09-20

Systems And Methods For Treating Saltwater And Feedwater

#44
20180222778
2018-08-09

Method and system for applying superimposed time-varying frequency electromagnetic wave to water to effect various treatment functions

#45
20180222777
2018-08-09

Method and system for applying superimposed time-varying frequency electromagnetic wave to target object or target region

#46
20180221821
2018-08-09

Method and system for applying superimposed time-varying frequency electromagnetic wave for removal of SO, COand NOfrom flue gases

#47
20180221484
2018-08-09

Method and apparatus for creating structured water by exposing water transversal and longitudinal to ultra- low frequency electromagmetic fields

#48
20180216246
2018-08-02

Method and system for applying superimposed time-varying frequency electromagnetic wave for corrosion protection of submerged and/or buried structures

#49
20180201526
2018-07-19

Method and system for applying superimposed time-varying frequency electromagnetic wave for marine ballast water bio-fouling control

#50
20180179095
2018-06-28

Water purification replicating a known popular source

#51
20180178184
2018-06-28

METHOD AND APPARATUS FOR CONDITIONING FLUIDS

#52
20180116256
2018-05-03

Chamber for pulsed electric field generation

#53
20180057373
2018-03-01

Method for preventing scale deposits and removing contaminants from fluid columns

#54
20180016163
2018-01-18

System and method for treating water systems with high voltage discharge and ozone

#55
20170313603
2017-11-02

Devices for the treatment of liquids using plasma discharges and related methods

#56
20170312758
2017-11-02

Method and system of using electromagnetism to control fertilizer leaching

#57
20170295731
2017-10-19

Fluid conditioning and treatment system

#58
20170217801
2017-08-03

Method and system for injecting RF signal into a fluid-containing system

#59
20170101327
2017-04-13

Method and device for water treatment using radio waves

#60
20170096352
2017-04-06

Treating liquids with electromagnetic fields

#61
20170088446
2017-03-30

Methods for conserving resources by treating liquids with electromagnetic fields

#62
20170073252
2017-03-16

Fracture Water Treatment Method and System

#63
20170029289
2017-02-02

Fracture Water Treatment Method and System

#64
20170021288
2017-01-26

Fracture water treatment method and system

#65
20170008782
2017-01-12

Fracture water treatment method and system

#66
20160318079
2016-11-03

Method and system for using electromagnetism to control fertilizer leaching

#67
20160251240
2016-09-01

Devices for the treatment of liquids using plasma discharges and related methods

#68
20160220971
2016-08-04

Mixing systems for ready-to-use flush solutions

#69
20160207801
2016-07-21

Systems and Methods for Conditioning Water

#70
20160152494
2016-06-02

System and method for disinfection and fouling prevention in the treatment of water

#71
20160107905
2016-04-21

Devices, systems and methods for conserving resources by treating liquids with electromagnetic fields

#72
20160023926
2016-01-28

Method and system for injecting RF signal into a fluid-containing system

#73
20160016829
2016-01-21

Treating liquids with electromagnetic fields

#74
20150344335
2015-12-03

Treating liquids with electromagnetic fields

#75
20150275601
2015-10-01

Separation of drilling fluid

#76
20150246833
2015-09-03

Method for preventing scale deposits and removing contaminants from fluid columns

#77
20150239757
2015-08-27

Devices, systems and methods for treatment of liquids with electromagnetic fields

#78
20150232352
2015-08-20

System and method for prevention of adhesion of organisms in water to a substrate in contact with water

#79
20150152721
2015-06-04

Use of ionized fluid in hydraulic fracturing

#80
20150090594
2015-04-02

Methods and apparatus for solid liquid separation

#81
20150090593
2015-04-02

Fluid conditioning

#82
20140374236
2014-12-25

Liquid treatment device

#83
20140360928
2014-12-11

Apparatus for preventing scale deposits and removing contaminants from fluid columns

#84
20140326681
2014-11-06

System and method for treating water systems with high voltage discharge and ozone

#85
20140311987
2014-10-23

Method for preventing scale deposits and removing contaminants from fluid columns

#86
20140216937
2014-08-07

Method and apparatus for treating fluid columns

#87
20140216936
2014-08-07

Devices, systems and methods for treatment of water with electromagnetic fields

#88
20140209312
2014-07-31

Use of ionized water in hydraulic fracturing

#89
20140140893
2014-05-22

STERILIZING DEVICE FOR STERILIZING FLUIDS

#90
20140138246
2014-05-22

Water Reclamation Systems and Methods

#91
20140083857
2014-03-27

Fracture Water Treatment Method and System

#92
20140014563
2014-01-16

Desalination system and process

#93
20130269810
2013-10-17

Method and apparatus for treating fluid in a conduit with radio-frequencies

#94
20130146464
2013-06-13

ELECTROMAGNETIC FIELD TREATMENT METHOD FOR WATER, ELECTROMAGNETIC FIELD TREATMENT DEVICE FOR WATER, AND ELECTROMAGNETIC FIELD TREATMENT DEVICE

#95
20130048569
2013-02-28

Pulse-power apparatus and water treatment system for inhibiting scale formation and microorganism growth

#96
20130038970
2013-02-14

SURGE PROTECTED DEVICES AND METHODS FOR TREATMENT OF WATER WITH ELECTROMAGNETIC FIELDS

#97
20120267312
2012-10-25

Apparatus for preventing scale deposits and removing contaminants from fluid columns

#98
20120217815
2012-08-30

Method and system for injecting RF signal into a fluid-containing system

#99
20120138517
2012-06-07

Use of electromagnetic pulses in cross-flow filtration systems

#100
20120067727
2012-03-22

Apparatus for Preventing Scaling and Removing Scale

#101
20120024718
2012-02-02

Method for treating a substance with wave energy from plasma and an electrical arc

#102
20110297594
2011-12-08

APPARATUS FOR GENERATING HIGH-FREQUENCY ELECTROMANETIC FIELD WITH ADJUSTABLE MAGNETIC FIELD INTENSITY AND WAVEFORM AND WATER PURIFICATION SYSTEM COMPRISING THE SAME

#103
20110011801
2011-01-20

Desalination system and process

#104
20100279373
2010-11-04

Process for treating a liquid medium

#105
20100186958
2010-07-29

Treating liquids in oil extraction

#106
20100102003
2010-04-29

Method and apparatus for preventing scale deposits and removing contaminants from fluid columns

#107
20100101958
2010-04-29

Method and apparatus for treating fluid columns

#108
20090188866
2009-07-30

Desalination with production of brine fuel

#109
20090101593
2009-04-23

PULSED POWER WATER TREATMENT

#110
20090065444
2009-03-12

Use of electromagnetic pulses in cross-flow filtration systems

#111
20080128283
2008-06-05

Water Purification Apparatus

#112
20080095661
2008-04-24

Sterilizing device and a method for sterilizing of fluids

#113
20070272621
2007-11-29

Pulsed power water treatment

#114
20070269876
2007-11-22

Device and process for treating a liquid medium

#115
20070227980
2007-10-04

Water treatment method

#116
20070158273
2007-07-12

Device and process for treating a liquid medium

#117
20070114164
2007-05-24

Pulse resonating device

#118
20070012571
2007-01-18

Apparatus, system and method for removing a contaminant in a fluid through the application of an electrostatic field

#119
20070000845
2007-01-04

Ballast water electromagnetic heating technique

#120
20060196817
2006-09-07

Method and apparatus for treating fluids

#121
18331610
2024-03-26

Device, system, and method for flow-through-plasma-hydrodynamic-reactor-based water treatment

#122
17232096
2022-02-08

Fluid treatment apparatus

#123
16901854
2020-12-29

Method of changing a property of a polar liquid

#124
16712289
2020-08-11

Method and system for changing a property of a polar liquid

#125
15961700
2018-08-14

Gas infusion waste water treatment

#126
13550634
2016-12-06

Safe clean drinking water, the worldwide challenge of preventing waterborne illnesses