ClassID:

86484

C02F2101/325 - CPC Classification

Classification description:

Nature of the contaminant; Organic compounds; Hydrocarbons, e.g. oil Emulsions

Recent Application in this class:
#1
20260070826
2026-03-12

MINERAL RECOVERY AND CHEMICAL PRODUCTION FROM PRODUCED WATER IN A GAS OIL SEPARATION PLANT

#2
20260048344
2026-02-19

OIL-WATER SEPARATION ASSEMBLIES AND METHODS OF SEPARATING AN OIL-IN-WATER AQUEOUS EMULSION OR WATER-IN-OIL HYDROCARBON EMULSION

#3
20260028253
2026-01-29

DESALINATION OF HIGH SALINITY PRODUCED WATER USING A ULTRA HIGH PRESSURE REVERSE OSMOSIS MEMBRANE

#4
20260001783
2026-01-01

ENHANCED FOAM REMOVAL OF TOTAL SUSPENDED SOLIDS AND MULTIPLY CHARGED CATIONS FROM AQUEOUS OR AQUEOUS/OIL MIXED PHASE VIA INCREASED VISCOELASTICITY

#5
20250276293
2025-09-04

METHOD FOR SEPARATING AN OIL-WATER EMULSION

#6
20250154036
2025-05-15

COMPOSITIONS AND METHODS OF USE FOR ENHANCED SOIL REMOVAL AND FAT, OIL, AND GREASE REDUCTION IN DRAIN PRODUCTS AND DISCHARGES INTO WATER SOURCES

#7
20250066222
2025-02-27

Method and System for Removing Hydrogen Sulfide From Sour Oil and Sour Water

#8
20240286929
2024-08-29

ENHANCED FOAM REMOVAL OF TOTAL SUSPENDED SOLIDS AND MULTIPLY CHARGED CATIONS FROM AQUEOUS OR AQUEOUS/OIL MIXED PHASE VIA INCREASED VISCOELASTICITY

#9
20240217844
2024-07-04

ZERO LIQUID DISCHARGE WATER MANAGEMENT SYSTEM

#10
20240010528
2024-01-11

GALVANIC PROCESS FOR TREATING AQUEOUS COMPOSITIONS

#11
20240010523
2024-01-11

Method and system for removing hydrogen sulfide from sour oil and sour water

#12
20230285908
2023-09-14

Adsorbent cartridge for oil/water separation

#13
20230212037
2023-07-06

JANUS COMPOSITE FOR OIL IN WATER SEPARATION

#14
20230191286
2023-06-22

COMPOSITIONS AND RELATED KITS AND METHODS FOR WATER TREATMENT

#15
20230183097
2023-06-15

LIQUID TREATMENT SYSTEM AND METHOD

#16
20230150848
2023-05-18

Sequestering agents, kits therefor, and methods of using sequestering agents and kits therefor

#17
20230135497
2023-05-04

METHOD FOR REFINERY WASTEWATER TREATMENT, A SYSTEM AND USES THEREOF

#18
20230002249
2023-01-05

Method and system for removing hydrogen sulfide from sour oil and sour water

#19
20220380231
2022-12-01

OIL, WATER AND SOLID IMPURITY SEPARATION DEVICE CAPABLE OF REALIZING CRUDE OIL GATHERING AND TRANSFERRING

#20
20220332604
2022-10-20

METHOD, SYSTEM AND DEVICE FOR WASTEWATER TREATMENT

#21
20220315457
2022-10-06

Galvanic process for treating aqueous compositions

#22
20210237003
2021-08-05

Rice-husk derived silicon carbide membrane sorbent for oil removal

#23
20210122648
2021-04-29

Method and system for removing hydrogen sulfide from sour oil and sour water

#24
20210106954
2021-04-15

Super-hydrophilic/underwater super-oleophobic separation membrane and preparation method thereof

#25
20210070634
2021-03-11

MAGNETIZATION AND MANIPULATION OF HYDROPHOBIC ABSORBENTS

#26
20210017046
2021-01-21

Enhanced foam removal of total suspended solids and multiply charged cations from aqueous or aqueous/oil mixed phase via increased viscoelasticity

#27
20200346949
2020-11-05

Electromagnetic pulsed-wave system

#28
20200330962
2020-10-22

Copper mesh coated with manganese molybdate and application thereof in the separation of oil-water emulsion and degradation of organic pollutants in water

#29
20200324274
2020-10-15

Carbon-based substance for removing saturated and non-saturated fats, petroleum and petroleum products from a water surface and/or water emulsion

#30
20200224403
2020-07-16

Method and system for management of sewer waste

#31
20200180978
2020-06-11

Method for removing organic pollutants from contaminated water using polystyrene-carbon nanofiber composition made from post-consumer waste

#32
20200131051
2020-04-30

System for recovering fat, oil and grease from wastewater

#33
20200109065
2020-04-09

Production of ultra-high-density brines using transiently-operated desalination systems

#34
20200087176
2020-03-19

Sequestering agents, kits therefor, and methods of using sequestering agents and kits therefor

#35
20200017380
2020-01-16

Method for removing impurities from a fluid stream

#36
20190345397
2019-11-14

Janus membranes via atomic layer deposition

#37
20190337822
2019-11-07

Magnetization and manipulation of hydrophobic absorbents

#38
20190291020
2019-09-26

Water treatment and steam generation system for enhanced oil recovery and a method using same

#39
20190256375
2019-08-22

COLLOIDAL SILICA ADDITION TO PROMOTE THE SEPARATION OF OIL FROM WATER

#40
20190224629
2019-07-25

Superoleophobic membranes for oil/water separation

#41
20190185763
2019-06-20

Online zeta-potential measurements for optimization of emulsion breaker dosage in ethylene plants

#42
20190070795
2019-03-07

Sintered and porous articles having improved flexural strength

#43
20190046948
2019-02-14

Method for reducing or controlling wastewater and pollutant from emulsion polymerization resin production

#44
20190031538
2019-01-31

Electromagnetic pulsed-wave system for oil manipulation

#45
20190031537
2019-01-31

MAGNETIZATION CONTROL AND TRANSPORTATION OF OIL

#46
20190002306
2019-01-03

Production of ultra-high-density brines using transiently-operated desalination systems

#47
20180370833
2018-12-27

Process for treating produced water from an oil and gas field

#48
20180370823
2018-12-27

METHOD FOR RECOVERING OIL AND VISCOSIFYING POLYMERS IN POLYMER-FLOOD PRODUCED WATER

#49
20180346356
2018-12-06

Process for the treatment of produced water from chemical enhanced oil recovery

#50
20180230025
2018-08-16

Device for wastewater purification

#51
20180222771
2018-08-09

Method and system for removing hydrogen sulfide from sour oil and sour water

#52
20180134970
2018-05-17

Apparatuses and methods for energy efficient separations including refining of fuel products

#53
20180105442
2018-04-19

Methods and compositions for clarifying produced waters for boiler feed waters

#54
20180079971
2018-03-22

Hydrocarbon-in-water purification anion-exchange system

#55
20180078880
2018-03-22

FILTER BED BACKWASH SYSTEM AND PROCESS WITH RECYCLED GAS

#56
20180023805
2018-01-25

Water treatment and steam generation system for enhanced oil recovery and a method using same

#57
20180009681
2018-01-11

Electrochemical treatment methods

#58
20170355618
2017-12-14

Method and system for removing hydrogen sulfide from sour oil and sour water

#59
20170253500
2017-09-07

WATER CONDITIONING

#60
20170203977
2017-07-20

Production of ultra-high-density brines using transiently-operated desalination systems

#61
20170189832
2017-07-06

COATED MESH AND ITS USE FOR OIL-WATER SEPARATION

#62
20170107127
2017-04-20

Non-emulsifier for completion brines to prevent emulsion from forming

#63
20170106311
2017-04-20

Emulsion preventer for completion brines

#64
20170101589
2017-04-13

Method to resolve emulsions formed during ethylene manufacture

#65
20170088447
2017-03-30

Processing of aqueous waste streams to remove naphthenic acids

#66
20170071214
2017-03-16

Plant-based compositions and uses thereof

#67
20170066881
2017-03-09

Poly alkanolamine emulsion breakers

#68
20160340208
2016-11-24

Transiently-operated desalination systems with heat recovery and associated methods

#69
20160339354
2016-11-24

Transiently-operated desalination systems and associated methods

#70
20160326443
2016-11-10

COMPOSITION AND METHOD FOR OILFIELD WATER CLARIFICATION PROCESSES

#71
20160310908
2016-10-27

Ultrathin, graphene-based membranes for water treatment and methods of their formation and use

#72
20160305110
2016-10-20

Diffuser baffle for grease interceptor

#73
20160289575
2016-10-06

Method and system for removing hydrogen sulfide from sour oil and sour water

#74
20160281007
2016-09-29

Apparatuses and methods for energy efficient separations including refining of fuel products

#75
20160236946
2016-08-18

Produced fluid heating and separation

#76
20160185625
2016-06-30

Method for treating oil-containing aqueous mixtures with cation exchange resin

#77
20160185620
2016-06-30

Vessel and method for treating contaminated water

#78
20160129400
2016-05-12

Superhydrophilic and oleophobic porous materials and methods for making and using the same

#79
20160107907
2016-04-21

Systems and Methods for Waste Oil Recovery

#80
20160101993
2016-04-14

Filter system for removing and/or neutralizing undissolved oils, greases, and salts and/or metal abrasion debris on and in emulsions containing water

#81
20160052803
2016-02-25

ULTRASOUND AND ACOUSTOPHORESIS TECHNOLOGY FOR SEPARATION OF OIL AND WATER, WITH APPLICATION TO PRODUCE WATER

#82
20160046877
2016-02-18

Sequential mixing system for improved desalting

#83
20160046512
2016-02-18

Use of a dual polymer system for enhanced water recovery and improved separation of suspended solids and other substances from an aqueous media

#84
20150315485
2015-11-05

Method and system for removing hydrogen sulfide from sour oil and sour water

#85
20150259231
2015-09-17

Process for reducing soluble organic content in produced waters associated with the recovery of oil and gas

#86
20150175451
2015-06-25

Systems for waste oil recovery

#87
20150166377
2015-06-18

Cationic vinyl imidazolium-based copolymer for separating an oil-in-water emulsion

#88
20150151985
2015-06-04

Electrochemical reactor system for treatment of water

#89
20150122481
2015-05-07

Systems and methods for de-oiling and total organic carbon reduction in produced water

#90
20150001158
2015-01-01

Cleaning systems devices and processes

#91
20150001153
2015-01-01

Using polymer particles for oil recovery

#92
20140353168
2014-12-04

Electrode for electrochemical abatement of chemical oxygen demand of industrial wastes

#93
20140339089
2014-11-20

Electrostatic coalescer and method for electrostatic coalescence

#94
20140332473
2014-11-13

Multistage filtrating pre-treatment for desalination of oilfield produced water

#95
20140332462
2014-11-13

Flux-enhanced hierarchical porous membrane for oil-water nanoemulsion separation

#96
20140291249
2014-10-02

Composite media for water treatment processes and methods of using same

#97
20140271928
2014-09-18

Plant-based compositions and uses thereof

#98
20140251920
2014-09-11

Enhanced foam removal of total suspended solids and multiply charged cations from aqueous or aqueous/oil mixed phase via increased viscoelasticity

#99
20140224733
2014-08-14

Colloidal silica addition to promote the separation of oil from water

#100
20140151303
2014-06-05

Process for the treatment of contaminated water by means of adsorption and nanofiltration

#101
20140141969
2014-05-22

Process for preparing absorbent material for apolar compounds or mixtures

#102
20140076810
2014-03-20

Systems and methods for use of water with switchable ionic strength

#103
20140048488
2014-02-20

Filtration of a hydrocarbon from a fluid

#104
20140042065
2014-02-13

Treatment stages for selenium removal

#105
20130292340
2013-11-07

Vessel and method for treating contaminated water

#106
20130240447
2013-09-19

Hierarchical porous membrane for emulsion separation

#107
20130236938
2013-09-12

Biodiesel fuel production, separation methods and systems

#108
20130221545
2013-08-29

Diffuser baffle for grease interceptor

#109
20130212932
2013-08-22

Separation systems for dewatering of fog and biodiesel fuel production

#110
20130193048
2013-08-01

Oil—water separator

#111
20130153512
2013-06-20

Treatment of surfactant laden wastewater

#112
20130075098
2013-03-28

METHODS FOR TREATMENT AND USE OF PRODUCED WATER

#113
20130037463
2013-02-14

WASTEWATER TREATMENT SYSTEM

#114
20120271065
2012-10-25

Method for recovering anionic fluorinated emulsifier

#115
20120267318
2012-10-25

WATER TREATMENT SYSTEMS AND METHODS

#116
20120267311
2012-10-25

Filtering machine

#117
20120255916
2012-10-11

Produced fluid heating and separation

#118
20120223020
2012-09-06

Composite media for water treatment processes and methods of using same

#119
20120145635
2012-06-14

TREATMENT OF WATERS WITH MULTIPLE CONTAMINANTS

#120
20120103905
2012-05-03

Microfiltration method and system

#121
20120097609
2012-04-26

METHODS AND SYSTEMS FOR TREATMENT OF AQUEOUS OILY SOLUTIONS

#122
20120067739
2012-03-22

COLLOID DECOMPOSITION METHOD AND APPARATUS FOR ELECTROCHEMICALLY RESOLVING EMULSIONS

#123
20120046487
2012-02-23

Separation of organosilicon compounds from wastewater

#124
20120025407
2012-02-02

Vessel and method for treating contaminated water

#125
20120000859
2012-01-05

Wastewater treatment system

#126
20120000853
2012-01-05

Superhydrophilic and oleophobic porous materials and methods for making and using the same

#127
20110297622
2011-12-08

Treatment additives, methods for making and methods for clarifying aqueous media

#128
20110284472
2011-11-24

WATER REDUCTION FOR COOKING GREASE AND OIL COLLECTION

#129
20110278494
2011-11-17

Cleaning and purifying compositions and associated method for purifying process water from the refinement of petroleum

#130
20110278218
2011-11-17

Ultrasound and Acoustophoresis Technology for Separation of Oil and Water, with Application to Produce Water

#131
20110272362
2011-11-10

Flotation and separation of flocculated oils and solids from waste waters

#132
20110247978
2011-10-13

Suspended media granular activated carbon membrane biological reactor system and process

#133
20110203993
2011-08-25

Treatment stages for selenium removal

#134
20110186525
2011-08-04

TREATMENT OF RECOVERED WELLBORE FLUIDS

#135
20110168639
2011-07-14

Wastewater treatment method and wastewater treatment apparatus

#136
20110163040
2011-07-07

Vessel and method for treating contaminated water

#137
20110163037
2011-07-07

Filtration of a hydrocarbon from a fluid

#138
20110068060
2011-03-24

Waste water treatment systems and methods

#139
20110042288
2011-02-24

Enhanced Coalescer

#140
20110000854
2011-01-06

USE OF A DUAL POLYMER SYSTEM FOR ENHANCED WATER RECOVERY AND IMPROVED SEPARATION OF SUSPENDED SOLIDS AND OTHER SUBSTANCES FROM AN AQUEOUS MEDIA

#141
20100267852
2010-10-21

Polymeric foam coalescing agent

#142
20100264082
2010-10-21

Suspended media granular activated carbon membrane biological reactor system and process

#143
20100224569
2010-09-09

Wastewater treatment system

#144
20100155314
2010-06-24

Auto-injecting onsite dual tank microbial inoculator for use in in-situ bioremediation of FOG (Fats, Oils and Grease)

#145
20100096342
2010-04-22

Removal of contaminants from water and gas by filtration

#146
20100096331
2010-04-22

Filtration of a hydrocarbon from a fluid

#147
20100059451
2010-03-11

Modular oil-based sludge separation and treatment system

#148
20100051521
2010-03-04

Bio tank/gas replenishment system

#149
20090314709
2009-12-24

Polar fog waste treatment

#150
20090204419
2009-08-13

Purification of Oil Field Production Water for Beneficial Use

#151
20090186782
2009-07-23

MIXED DEMULSIFIER OF ASP FLOODING PRODUCED LIQUID

#152
20090184055
2009-07-23

Method for recycling of oil based drilling fluid contaminated with water and water contaminated with oil based drilling fluid

#153
20090166282
2009-07-02

PHOTOCATALYSED OXIDATION PURIFICATION DEVICE

#154
20090145848
2009-06-11

Process for treating industrial effluent water with activtated media

#155
20090078632
2009-03-26

MODULAR OIL-BASED SLUDGE SEPARATION AND TREATMENT SYSTEM

#156
20090057236
2009-03-05

Cleaning and purifying compositions and associated method for purifying process water from the refinement of petroleum

#157
20080227180
2008-09-18

Method of managing organic waste

#158
20080210637
2008-09-04

Adsorbent, method for producing same, and method for processing oil-containing waste water

#159
20080203014
2008-08-28

Integrated cogeneration wastewater sewage and waste polar fats/ oils/ greases/waxes (FOG) waste treatment method and facility

#160
20080190859
2008-08-14

Method for recovering suspended solids from residual effluents

#161
20080099404
2008-05-01

Process for treating industrial effluent water with activated media

#162
20080061003
2008-03-13

Method for recycling of oil based drilling fluid contaminated with water and water contaminated with oil based drilling fluid

#163
20080041773
2008-02-21

Bio tank/oxygen replenishment system

#164
20080035586
2008-02-14

Enhanced coalescer

#165
20080017574
2008-01-24

Device for in situ bioremediation of liquid waste

#166
20070272618
2007-11-29

Method and apparatus for demulsifying an oil-water emulsion via ultrasonic

#167
20070272616
2007-11-29

Water treatment mixture and methods and system for use

#168
20070241059
2007-10-18

Method for treatment of oil to facilitate its subsequent removal

#169
20070170118
2007-07-26

Method of processing drilling fluid

#170
20070125714
2007-06-07

Processes for removing oil from solid wellbore materials and produced water

#171
20070114183
2007-05-24

Vessel and method for treating contaminated water

#172
20070102359
2007-05-10

Treating produced waters

#173
20070062881
2007-03-22

Method and apparatus for treating wastewater containing emulsified oil

#174
20070039883
2007-02-22

Water separation system

#175
20070017876
2007-01-25

Microwave-enhanced process to treat marine emulsion wastes

#176
20060289359
2006-12-28

Method of clarifying oily waste water

#177
20060273051
2006-12-07

Oil-based sludge separation and treatment system

#178
20060273039
2006-12-07

Water treatment mixture

#179
20060236594
2006-10-26

Composition and process for treating pollution

#180
20060157397
2006-07-20

Oil/water separation apparatus for oil-containing mixture

#181
20060151372
2006-07-13

Multistage filtration systems

#182
20060124560
2006-06-15

Filter aid and method of using same for reclaiming water-based fluids used in metal working processes

#183
20060070959
2006-04-06

Poultry processing water recovery and re-use process

#184
20060032820
2006-02-16

Processes for removing oil from solid wellbore materials and produced water

#185
20050194323
2005-09-08

System and method for recovering oil from a waste stream

#186
20050150833
2005-07-14

Method for recovering fluorine-containing emulsifier

#187
20050139553
2005-06-30

Method for treating metal-containing solutions

#188
20050098505
2005-05-12

FILTER AID AND METHOD OF USING SAME FOR RECLAIMING WATER-BASED FLUIDS USED IN METAL WORKING PROCESSES

#189
20050092671
2005-05-05

Apparatus for recycling of oil-based drilling fluid contaminated with water and water contaminated with oil based drilling fluid

#190
20050016934
2005-01-27

Poultry processing water recovery and re-use process

#191
14959508
2019-08-13

Process for enhanced fractionation of recovered waste streams

#192
14719189
2016-02-23

Transiently-operated desalination systems with heat recovery and associated methods