ClassID:

29358

B01D37/04 - CPC Classification

Classification description:

Processes of filtration Controlling the filtration

Sub-classes:
Recent Application in this class:
#1
20260061350
2026-03-05

MODULAR SENSOR DESIGNS AND APPLICATIONS THEREOF

#2
20260061105
2026-03-05

RECIRCULATING FLUID FILTRATION SYSTEM

#3
20260002374
2026-01-01

HAND-HELD SWIMMING POOL CLEANING APPARATUS AND CONTROL METHOD THEREOF

#4
20250389677
2025-12-25

DEVICE AND METHOD FOR DETECTING FOREIGN SUBSTANCES IN ELECTRODE ACTIVE MATERIAL

#5
20250375558
2025-12-11

SORBENT MANIFOLD FOR A DIALYSIS SYSTEM

#6
20250339798
2025-11-06

METHOD AND SYSTEM FOR TREATING ENVIRONMENTAL AIR

#7
20250229202
2025-07-17

MULTI-LAYER POROUS POLYMERIC MEMBRANE AND RELATED FILTERS AND METHODS

#8
20250153078
2025-05-15

VALVE SYSTEMS FOR A HYBRID FILTER

#9
20250025814
2025-01-23

INTERNAL PERFORMANCE MONITORING FOR WATER FILTER

#10
20250003557
2025-01-02

SUPPLEMENTAL FILTRATION FOR MACHINE FLUID SYSTEMS

#11
20240278154
2024-08-22

WATER PURIFIER

#12
20240252963
2024-08-01

LIQUID COMPOSITION FOR PURIFICATION OF OIL

#13
20240216843
2024-07-04

Chemical liquid purification method and chemical liquid

#14
20240091685
2024-03-21

SYSTEM AND METHOD FOR FILTERING A FLUID

#15
20230364315
2023-11-16

RECIRCULATING FLUID FILTRATION SYSTEM

#16
20230211256
2023-07-06

PROCESS FOR MAKING A WATER SOLUBLE, FULL SPECTRUM HEMP OIL

#17
20230174450
2023-06-08

PROCESS AND SYSTEM FOR PURIFICATION OF CITRIC ACID

#18
20230087746
2023-03-23

Chemical liquid purification method and chemical liquid

#19
20220362692
2022-11-17

Dual pumping arrangement for a hollow fiber filter

#20
20220355251
2022-11-10

Plunger pumping arrangement for a hollow fiber filter

#21
20220299460
2022-09-22

Processes and systems for monitoring filter materials

#22
20220168674
2022-06-02

Filter life determination

#23
20220143537
2022-05-12

METHOD AND APPARATUS FOR ENHANCED SEPARATION AND REMOVAL OF CONTAMINANTS AND IRRADIATED PARTICULATES FROM FLUIDS

#24
20220128199
2022-04-28

Supplemental filtration for machine fluid systems

#25
20220016554
2022-01-20

Method and system for purification of contaminated oil

#26
20220001313
2022-01-06

Fuel filter device

#27
20210252203
2021-08-19

SORBENT MANIFOLD FOR A DIALYSIS SYSTEM

#28
20210156672
2021-05-27

Device and method for measuring a filter cake thickness

#29
20210040918
2021-02-11

SYSTEM AND METHOD OF FILTERING A REFRIGERANT FOR A FLUID INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

#30
20200398321
2020-12-24

SYSTEM AND METHOD FOR SEPARATION OF ORGANICS AND LIQUIDS FROM WASTE MATERIAL

#31
20200398198
2020-12-24

Plunger pumping arrangement for a hollow fiber filter

#32
20200398197
2020-12-24

Dual pumping arrangement for a hollow fiber filter

#33
20200329679
2020-10-22

FILTRATION SYSTEM FOR USE WITH AN EGG WASHER OPERATION FOR EXTENDING BOTH EFFICIENCY AND LIFE CYCLE OF A VOLUME OF WASH WATER INCLUDING CLEAN-IN-PLACE CLEANING OF THE WASHER AND WATER DISPOSAL/REFILL OPTIONS

#34
20200270890
2020-08-27

Pool cleaner with selective inlet control

#35
20200246738
2020-08-06

Self-cleaning filtration system for use in agricultural sprayers

#36
20200222616
2020-07-16

Recirculating fluid filtration system

#37
20200164294
2020-05-28

Chemical liquid purification method and chemical liquid

#38
20200139273
2020-05-07

PARTICLE FILTERS AND SYSTEMS INCLUDING THEM

#39
20200123019
2020-04-23

Control device of liquid dispenser, liquid dispenser, and control system of liquid dispenser

#40
20200011486
2020-01-09

Supplemental filtration for machine fluid systems

#41
20190374889
2019-12-12

Filtration monitoring system data transmission

#42
20190299163
2019-10-03

Water purifier

#43
20190240388
2019-08-08

Sorbent manifold for a dialysis system

#44
20190201820
2019-07-04

Plunger pumping arrangement for a hollow fiber filter

#45
20190201819
2019-07-04

Dual pumping arrangement for a hollow fiber filter

#46
20190127211
2019-05-02

Method and filling device for filling a transport container with a fluid

#47
20190118121
2019-04-25

Arrangement and method for separating out and removing screenings from wastewater

#48
20180370831
2018-12-27

Water treatment device

#49
20180311598
2018-11-01

Multi-phase pumping system with self-purging filtration

#50
20180297561
2018-10-18

Vehicle water collection system

#51
20180133631
2018-05-17

Systems and methods for servicing a fluid filtration system

#52
20180118580
2018-05-03

Control device of water purifier, water purifier, and control system of water purifier

#53
20180066803
2018-03-08

Supplemental filtration for machine fluid systems

#54
20170296965
2017-10-19

On-board inert gas generating system prognostic health monitoring

#55
20170282104
2017-10-05

FLUID FILTER WITH OPTICAL KEY AND MANIFOLD WITH OPTICAL LOCK

#56
20170129795
2017-05-11

REVERSE OSMOSIS WATER PURIFIER

#57
20170121184
2017-05-04

Method and apparatus for controlling water output of water purifier, water purifier, and storage medium

#58
20170119951
2017-05-04

MEMS based filter and catalizer

#59
20170095758
2017-04-06

Fuel filter device

#60
20170050128
2017-02-23

Transverse flow self-cleaning strainer

#61
20170036928
2017-02-09

Methods of inhibiting fouling in liquid systems

#62
20170014737
2017-01-19

Strainer and Strainer Control System

#63
20160369797
2016-12-22

Fuel filter assembly with brushless DC pump

#64
20160369794
2016-12-22

Brushless DC motor control and methods of operating a fuel pump

#65
20160263305
2016-09-15

Recirculating fluid filtration system

#66
20160059166
2016-03-03

Removal of HAB-produced toxins from bodies of water

#67
20150352475
2015-12-10

Operation method for dezincification plant

#68
20150273538
2015-10-01

Substrate liquid processing apparatus and method, and computer-readable recording medium with substrate liquid processing program recorded therein

#69
20150076084
2015-03-19

Rotating separator

#70
20150047421
2015-02-19

Fuel filter device

#71
20140346119
2014-11-27

METHOD FOR OPERATING AN OIL FILTER SYSTEM

#72
20140263086
2014-09-18

Methods of inhibiting fouling in liquid systems

#73
20140246380
2014-09-04

Extended-life oil management system and method of using same

#74
20140209545
2014-07-31

Apparatus and Method for Purifying Thermoplastic Polymers

#75
20140027359
2014-01-30

Filter loading

#76
20130327729
2013-12-12

Supplemental filtration for machine fluid systems

#77
20130256240
2013-10-03

DEVICE AND METHOD FOR FILTERING FLUIDS

#78
20130248450
2013-09-26

Recirculating fluid filtration system

#79
20130112627
2013-05-09

Chemical treatment to improve red mud separation and washing in the bayer process

#80
20130058847
2013-03-07

Methods to improve filtration for the Bayer process

#81
20130015137
2013-01-17

Method of maintaining water quality in a process stream

#82
20120111804
2012-05-10

APPARATUS AND METHOD FOR PURIFYING THERMOPLASTIC POLYMERS

#83
20120074069
2012-03-29

SMART FILTER MONITOR

#84
20110136064
2011-06-09

Fluid filtration method, fluid filtered thereby, lithographic apparatus and device manufacturing method

#85
20100051518
2010-03-04

Method for diagnosing machine fault by analyzing hydraulic fluid

#86
20090218284
2009-09-03

Method of starting up a filtration plant and a filtration plant designed to be able to start up correspondingly

#87
20080217255
2008-09-11

Methods for Filtering a Fluid and an Apparatus and Filter Apparatus for Performing Said Method

#88
20080187874
2008-08-07

Fluid filtration method, fluid filtered thereby, lithographic apparatus and device manufacturing method

#89
20080135498
2008-06-12

Method and apparatus for filter conditioning

#90
20070163929
2007-07-19

Filter loading

#91
20060283785
2006-12-21

Slurry filtration system and apparatus

#92
20060186057
2006-08-24

Fluid filtration method, fluid filtered thereby, lithographic apparatus and device manufacturing method

#93
20060131221
2006-06-22

Quick countercurrent-type water purifier

#94
20060027509
2006-02-09

Hot-gas pressure-filter apparatus

#95
20050023194
2005-02-03

Automated low-volume tangential flow filtration process development device

#96
15882385
2019-01-01

Plunger pumping arrangement for a hollow fiber filter

#97
14799202
2016-07-12

Strainer and strainer control system