ClassID:

28814

B01D21/302 - CPC Classification

Classification description:

Separation of suspended solid particles from liquids by sedimentation; Control equipment Active control mechanisms with external energy, e.g. with solenoid valve

Recent Application in this class:
#1
20260146507
2026-05-28

OPEN LOOP BEAD RECOVERY SYSTEM

#2
20260061340
2026-03-05

AUTOMATED SKIMMER SYSTEM

#3
20250346515
2025-11-13

Non-Biological Wastewater Treatment Systems and Methods for Treating Wastewater

#4
20250256224
2025-08-14

SAND SEPERATION CONTROL SYSTEM AND METHOD

#5
20250099878
2025-03-27

SYSTEM AND METHOD FOR REMOVING CONTAMINANTS FROM A PYROLYSIS FLUID

#6
20250090981
2025-03-20

APPARATUS, SYSTEMS, AND METHODS FOR AUTOMATED SEPARATION OF SAND FROM A WELLBORE SLURRY

#7
20250026669
2025-01-23

PURIFICATION APPARATUS AND METHOD OF CONTROLLING PURIFICATION APPARATUS

#8
20240400913
2024-12-05

METHOD AND SYSTEM FOR PRODUCING AT LEAST ONE OIL PRODUCT FROM WASTE OIL

#9
20240109005
2024-04-04

Brine density apparatuses and methods

#10
20240024801
2024-01-25

SAND SEPARATION CONTROL SYSTEM AND METHOD

#11
20240017191
2024-01-18

Apparatus, systems, and methods for automated separation of sand from a wellbore slurry

#12
20230405496
2023-12-21

SHAKER FLUID LEVEL AUTOMATIC CONTROL

#13
20230338967
2023-10-26

Particle separation apparatus

#14
20230311027
2023-10-05

SYSTEM FOR REMOVING SOLIDS FROM A SEPARATOR AND METHOD THEREFOR

#15
20230295022
2023-09-21

SAMPLING DEVICE FOR COAGULATION TREATMENT DEVICE, COAGULATION TREATMENT DEVICE, AND WATER TREATMENT METHOD

#16
20230256358
2023-08-17

Waste Oil Handling Apparatus

#17
20230040989
2023-02-09

Treatment of Multiphase Hydrocarbon-Containing Fluid in Oil and/or Gas Production

#18
20230002247
2023-01-05

FRAC SAND SEPARATOR SYSTEM

#19
20220324739
2022-10-13

Tailings settling-dewatering-solidifying device and experimental method thereof

#20
20220250095
2022-08-11

SEPARATING SYSTEM

#21
20220184532
2022-06-16

Apparatus and method for determining solids level in a sand separator

#22
20220152529
2022-05-19

Immersed active infrared self-cleaning secondary sedimentation tank sludge blanket induction device and application method thereof

#23
20220111477
2022-04-14

SLUDGE TREATMENT DEVICE AND SLUDGE TREATMENT SYSTEM

#24
20220096966
2022-03-31

Automated sand separator discharge system

#25
20220073370
2022-03-10

Apparatus and method for optimizing hydro-cyclone separation in a filtering system

#26
20220054957
2022-02-24

Apparatus, systems, and methods for automated separation of sand from a wellbore slurry

#27
20220047970
2022-02-17

Sand separation control system and method

#28
20220001305
2022-01-06

Method and apparatus for reducing the water content of waste water sludge

#29
20210363029
2021-11-25

Frac sand separator system

#30
20210299595
2021-09-30

Differential pressure based automated sand detection and handling system for oil and gas well operations

#31
20210299594
2021-09-30

Automated sand separator discharge system

#32
20210252431
2021-08-19

AUTOMATED SAND DETECTION AND HANDLING SYSTEM FOR OIL AND GAS WELL OPERATIONS

#33
20210205735
2021-07-08

Sand separation control system and method

#34
20210188680
2021-06-24

WASTE TREATMENT DEVICE

#35
20210129047
2021-05-06

Removable trap stations for hydrocarbon flowlines

#36
20210077923
2021-03-18

Systems and processes for automated sand separation

#37
20200368411
2020-11-26

Bioprocessing system

#38
20200346139
2020-11-05

Sand traps for use in oil and gas extraction operations

#39
20200308948
2020-10-01

Oil, water, gas and solid particle separation in oil and/or gas production

#40
20200164287
2020-05-28

Method and apparatus for removal of surface scum

#41
20200155975
2020-05-21

Apparatus, systems, and methods for automated separation of sand from a wellbore slurry

#42
20200129887
2020-04-30

Method and arrangement for controlling a dewatering process

#43
20200101401
2020-04-02

Sediment capture syphon system and pump

#44
20200095150
2020-03-26

Automated waste water recycling system using advanced electro-coagulation unit

#45
20200095149
2020-03-26

Automated waste water recycling system using advanced electro-coagulation unit

#46
20200061498
2020-02-27

Purification of oil

#47
20190351469
2019-11-21

SYSTEM AND METHOD FOR TREATMENT OF CONTAMINATED SEDIMENTS USING FREE RADICAL CHEMICAL REACTION AND PHASE SEPARATION PROCESSES

#48
20190299129
2019-10-03

Turbid matter separating apparatus, turbid matter separating method, and turbid matter separating system

#49
20190282927
2019-09-19

Recovering a hydrocarbon fluid

#50
20190265146
2019-08-29

Apparatus and method for static sedimentation tests comprising a plurality of sedimentation cylinders, which are subject to the same mixing conditions

#51
20190233316
2019-08-01

Animal byproduct recovery system

#52
20190232200
2019-08-01

Waste Oil Handling Apparatus

#53
20190118118
2019-04-25

Method and apparatus for smart electromagnetic screen system for use in drilling operations

#54
20190099544
2019-04-04

SYSTEMS AND METHODS FOR RETURNING TREATED MONONUCLEAR CELLS TO A BLOOD SOURCE

#55
20190063203
2019-02-28

Oil, water, gas and solid particle separation in oil and/or gas production

#56
20190010071
2019-01-10

Sludge dehydrator

#57
20180290078
2018-10-11

CONTINUOUS RECYCLING OF WASH WATER WITH FLOCCULATION DEVICE AND PROCESS

#58
20180200647
2018-07-19

SEPARATOR AND METHOD OF SEPARATION WITH AN AUTOMATED PRESSURE DIFFERENTIAL DEVICE

#59
20180148362
2018-05-31

VEHICLE-MOUNTED PORTABLE APPARATUS FOR CLARIFICATION AND DISINFECTION OF WASTEWATER PRODUCED BY THE WASHING OF ROAD DRAINAGE INLETS AND DRAINS AND TUNNELS, AND METHOD FOR CLARIFICATION AND DISINFECTION OF WASTEWATER PRODUCED BY THE WASHING OF ROAD DRAINAGE INLETS AND DRAINS AND TUNNELS

#60
20180104624
2018-04-19

Device to separate water and solids of spray water in a continuous caster, and method to monitor and control corrosion background

#61
20180043287
2018-02-15

Optimized recycling of drilling fluids by coordinating operation of separation units

#62
20180028941
2018-02-01

Liquid refinement

#63
20170326476
2017-11-16

METHOD AND APPARATUS FOR REMOVAL OF CLARIFIED LIQUID

#64
20170259193
2017-09-14

Extrusion system and method for separating soil from water

#65
20170137307
2017-05-18

METHODS AND APPARATUS FOR A WATER PURIFICATION SYSTEM

#66
20170120165
2017-05-04

Separation of Drilling Fluid

#67
20170087609
2017-03-30

System and method for treatment of contaminated sediments or soils using free radical chemical reaction and phase separation processes

#68
20170081426
2017-03-23

Starch settling recovery system

#69
20170080359
2017-03-23

Recovering a hydrocarbon fluid

#70
20170067812
2017-03-09

SEPARATION SAMPLING MODULES FOR USE WITHIN A BUCKET OF A CENTRIFUGE

#71
20170043280
2017-02-16

Liquid Solid Separator

#72
20160376182
2016-12-29

Method and device for treating an organic effluent

#73
20160367915
2016-12-22

System and Method For Recapturing and Cleaning Fluid

#74
20160367913
2016-12-22

Apparatus and method for automatic decantation of multi-phase chemical fluid

#75
20160341024
2016-11-24

Systems and methods for subsea fluid phase separation

#76
20160289104
2016-10-06

SYSTEM FOR TREATMENT OF FOOD PROCESS WASTE WATER

#77
20160263587
2016-09-15

Vortex-type grit chamber

#78
20160256798
2016-09-08

Variable Speed Torque Monitoring Inline Mixer

#79
20160250570
2016-09-01

FEED CONDITIONING AUTOMATION

#80
20160122209
2016-05-05

SELECTIVE FLUID RETRIEVAL AND TREATMENT SYSTEM FOR OIL AND WASTEWATER RECOVERY

#81
20160075583
2016-03-17

Solids removal system and method

#82
20160059153
2016-03-03

Sand separator interface detection

#83
20160053455
2016-02-25

Skimming and separation device

#84
20150204055
2015-07-23

System for recycling grey water

#85
20150151221
2015-06-04

Method and device for the concentration of multiple microorganisms and toxins from large liquid toxins

#86
20140124436
2014-05-08

Vortex-type grit chamber

#87
20120325751
2012-12-27

Flowback separation system

#88
20120305477
2012-12-06

Solids retention time uncoupling by selective wasting of sludge

#89
20120152864
2012-06-21

Self-disposal of solids in an immiscible liquid separator

#90
20120006762
2012-01-12

Solids removal system and method

#91
20110233144
2011-09-29

Solids removal system and method

#92
20100216215
2010-08-26

Method and device for the concentration of multiple microorganisms and toxins from large liquid toxins

#93
20090301966
2009-12-10

Method for purifying wastewater

#94
20090283452
2009-11-19

Method and apparatus for splitting fluid flow in a membraneless particle separation system

#95
20090215602
2009-08-27

Systems and methods for mid-processing calculation of blood composition

#96
20090211989
2009-08-27

Systems and methods for conveying multiple blood components to a recipient

#97
20090095690
2009-04-16

SOLIDS REMOVAL SYSTEM AND METHOD

#98
20080181828
2008-07-31

Ultrasound one-quarter wave separator integrates with sterile tubing kit - optical sensing / valves manage purity - lowers apheresis extra corporeal blood volume - replacement for centrifuge

#99
20080087607
2008-04-17

Effluent Treatment Installation And Clarification And Filtration Method Using Same

#100
20080041774
2008-02-21

Grit chamber for wastewater treatment plant, capable of preventing sedimentation of organic material

#101
20070251650
2007-11-01

Treatment of spent caustic refinery effluents

#102
20070199903
2007-08-30

System For Removing Solids From Aqueous Solutions

#103
20070114161
2007-05-24

Solids recovery using cross-flow microfilter and automatic piston discharge centrifuge

#104
20060049120
2006-03-09

Separation devices, systems and methods for separation of particulates from liquid

#105
20050247642
2005-11-10

Separating tank assembly and method of draining separating tank

#106
20050173354
2005-08-11

Acoustic sensor for obstruction in a device circulating vortex-flow fluid

#107
20050084393
2005-04-21

Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive

#108
20050016934
2005-01-27

Poultry processing water recovery and re-use process

#109
20050006321
2005-01-13

Fluidized solids removal with pulsation

#110
17362234
2022-06-07

Sand discharge control system

#111
17082891
2022-01-11

System for separating solids from a fluid stream

#112
17082809
2022-01-11

System for separating solids from a fluid stream

#113
16427858
2020-07-07

Systems, methods, and apparatus for separating fluid mixtures

#114
16131900
2020-12-08

System for separating solids from a fluid stream

#115
15183821
2017-10-03

System and method for recycling of pre-impregnated composite fibers

#116
15049416
2016-06-21

Transportable separator for separating particulate matter from a mixture containing oil, water, and particulate matter