ClassID:

29349

B01D36/006 - CPC Classification

Classification description:

Filter circuits or combinations of filters with other separating devices; Filters in combination with devices for the removal of liquids Purge means

Recent Application in this class:
#1
20250345731
2025-11-13

DIESEL FUEL FILTER

#2
20250319429
2025-10-16

FLUID SYSTEM HAVING FILTER CONNECTING SYSTEM BETWEEN HOUSING COMPONENTS

#3
20250001332
2025-01-02

DUAL STAGE ADVANCED FUEL WATER SEPARATOR

#4
20240375987
2024-11-14

WASTE PROCESSING APPARATUS

#5
20240299868
2024-09-12

FILTER DEVICE

#6
20230332567
2023-10-19

Filter device

#7
20230271121
2023-08-31

FLUID FILTER SYSTEM WITH AUTO DRAIN

#8
20230264122
2023-08-24

Filter element having flow directing tube and standpipe and filter systems including the filter element

#9
20230226471
2023-07-20

POSITIVE-PRESSURE NON-AGITATING LIQUID FILTRATION

#10
20230219023
2023-07-13

Fuel-water separator systems and methods

#11
20220347599
2022-11-03

MOISTURE REMOVAL DEVICE USING ROTATING DISK AND NITROGEN PEELING

#12
20220298002
2022-09-22

Method and apparatus for limiting acidic corrosion and contamination in fuel delivery systems

#13
20220054959
2022-02-24

METHOD AND DEVICE FOR DETERMINING AT LEAST ONE OPERATING PARAMETER OF A FILTER OR A FILTER CARTRIDGE ARRANGED IN THE FILTER, AND FILTER CARTRIDGE

#14
20220040611
2022-02-10

Self sufficient suction side automatic drain valve

#15
20210283539
2021-09-16

Fuel-water separator systems and methods

#16
20210129058
2021-05-06

Cartridge group for fuel filtration

#17
20210053000
2021-02-25

FILTER LEAK PATH PREVENTION VIA INTERFERENCE PIN

#18
20210040924
2021-02-11

FILTER DEVICE

#19
20200406176
2020-12-31

Fuel filter

#20
20200406170
2020-12-31

Filter device

#21
20200347809
2020-11-05

Water drain mechanism for filter assemblies

#22
20200324232
2020-10-15

Gas-liquid separator

#23
20200306667
2020-10-01

Coalescing filter element

#24
20200289966
2020-09-17

Filter leak path prevention via interference pin

#25
20200277921
2020-09-03

Return tube of a fuel filter assembly of a fuel system

#26
20200261835
2020-08-20

Water separation unit

#27
20200248662
2020-08-06

Discharge control device for a filter system, and filter system having a discharge control device

#28
20200222836
2020-07-16

Fuel-water separator systems and methods

#29
20200197841
2020-06-25

Filter device

#30
20200139277
2020-05-07

Drain assembly for a housing of a filter assembly

#31
20200129891
2020-04-30

Filter element for liquid filtration

#32
20200058975
2020-02-20

Energy-storage arrangement for an electric or hybrid vehicle

#33
20200001215
2020-01-02

Filter device

#34
20190388814
2019-12-26

Valve-sensor assembly

#35
20190344199
2019-11-14

Diesel dehydrator

#36
20190282942
2019-09-19

Gas-liquid separator

#37
20190262746
2019-08-29

Fuel pre-filtering element

#38
20190255466
2019-08-22

Filter element

#39
20190240602
2019-08-08

Facial sealing system for a filter

#40
20190176061
2019-06-13

Filter center tube with standpipe and flow fins

#41
20190168142
2019-06-06

DIESEL FUEL PRE-FILTERING SYSTEM

#42
20190168140
2019-06-06

APPLICATION BASED WATER DRAIN FEATURE FOR FUEL WATER SEPARATORS AND/OR NATURAL GAS FILTERS

#43
20190030461
2019-01-31

Fluid degassing systems

#44
20190030460
2019-01-31

Fluid degassing devices having selected profiles

#45
20190030459
2019-01-31

FLUID DEGASSING SYSTEMS

#46
20190001245
2019-01-03

Filter device

#47
20180345188
2018-12-06

Filter device

#48
20180257925
2018-09-13

Method and apparatus for limiting acidic corrosion and contamination in fuel delivery systems

#49
20180250617
2018-09-06

Filter housing

#50
20180216588
2018-08-02

Auto drain system for vacuum and pressure side fuel water separator

#51
20180209387
2018-07-26

Fuel filter

#52
20180133631
2018-05-17

Systems and methods for servicing a fluid filtration system

#53
20180001238
2018-01-04

Filter leak path prevention via interference pin

#54
20170361249
2017-12-21

Filter center tube with standpipe and flow fins

#55
20170312669
2017-11-02

Drain control device for a filter system as well as filter system with a drain control device

#56
20170312668
2017-11-02

Drain control device for a filter system as well as filter system with a drain control device

#57
20170312664
2017-11-02

Filter cartridge provided with means for draining water and a relative filter group

#58
20170252684
2017-09-07

Filter element having projecting bayonet-type protrusion

#59
20170252683
2017-09-07

Clean-side water-separating filter element having bayonet connection, and fuel filter having a filter element of this type

#60
20170204821
2017-07-20

Fluid filter cartridge, fluid filter arrangement, and method for servicing a fluid filter arrangement

#61
20170173507
2017-06-22

Filter system using a self-venting drain

#62
20170120168
2017-05-04

Coalescing filter element

#63
20170080366
2017-03-23

Filter device

#64
20170021295
2017-01-26

Fuel filter assembly, filter element and method for draining water from a fuel filter assembly

#65
20160281500
2016-09-29

Automated fluid fraction sampling system

#66
20160265497
2016-09-15

Water separator and water separating system with integrated water discharge device

#67
20160236123
2016-08-18

Filter group with presence sensor of water in diesel fuel

#68
20160214040
2016-07-28

Flow cap and filter assembly including flow cap

#69
20160214038
2016-07-28

Filter assembly including flow cap

#70
20160138538
2016-05-19

Fuel filter for diesel engine

#71
20150273370
2015-10-01

Debris drain filter system and cartridge

#72
20150267658
2015-09-24

Filter cartridge provided with means for expulsion of water and a relative filter group

#73
20150115184
2015-04-30

Connector for connecting hose coupler to drain knob

#74
20140366961
2014-12-18

Emptying device

#75
20140261773
2014-09-18

Automatic drain for fuel processor

#76
20140124054
2014-05-08

Case structure for fluid pressure device

#77
20140061110
2014-03-06

FILTER HOUSING WITH INTEGRALLY THREADED PORT

#78
20130298509
2013-11-14

Drain adaptor

#79
20130292310
2013-11-07

Filter device

#80
20130233400
2013-09-12

Filter device

#81
20130153487
2013-06-20

Fuel water separator filter with water drain

#82
20130087497
2013-04-11

Filter cartridge having a filter within a filter, and an endplate sealing structure on an outer filter element

#83
20120234743
2012-09-20

Filter device

#84
20120168359
2012-07-05

Vented liquid filter vented through media

#85
20120125832
2012-05-24

Fluid filter, fluid filter assembly, and mounting method

#86
20120103884
2012-05-03

Filter assembly

#87
20120091051
2012-04-19

Filter having drain valve with mechanical lock

#88
20120080386
2012-04-05

Fuel supply system of an internal combustion engine and method for separating water from fuel

#89
20120080372
2012-04-05

Filter system with fuel-water separator

#90
20120037557
2012-02-16

Filter

#91
20120037556
2012-02-16

Filter element and filter assembly including locking mechanism

#92
20120037548
2012-02-16

Filtering device for fluids, in particular for fuel

#93
20110284448
2011-11-24

Device for a fuel filter system

#94
20110284435
2011-11-24

FLUID FILTER

#95
20110041920
2011-02-24

Automatic draining system to drain fluid from a filter

#96
20110000833
2011-01-06

Fuel filter system, especially for diesel engines

#97
20100258491
2010-10-14

Filtering device for fluids, in particular for fuel

#98
20100258489
2010-10-14

Purging assembly for a filter housing

#99
20100219117
2010-09-02

Coalescing element

#100
20100117842
2010-05-13

Contaminant Detection Unit

#101
20100116729
2010-05-13

Filter

#102
20100101993
2010-04-29

Filter cartridge having a filter within a filter, and an endplate sealing structure on an outer filter element

#103
20090308803
2009-12-17

Filter with water separation device

#104
20090308801
2009-12-17

Fluid filter, fluid filter assembly, and mounting method

#105
20090288998
2009-11-26

Water separating fuel filter with limited removal capability for a water detecting sensor

#106
20090184041
2009-07-23

Fluid filter with clear shell portion

#107
20090173639
2009-07-09

WATER DRAINING SYSTEM FOR A FUEL FILTER

#108
20090090678
2009-04-09

Fuel filter device

#109
20090078631
2009-03-26

Modular fuel filter assembly

#110
20080272046
2008-11-06

Fuel filter

#111
20080245719
2008-10-09

Filter element and filter assembly including locking mechanism

#112
20080223461
2008-09-18

One-Piece Self-Venting Drain Valve

#113
20070246027
2007-10-25

Fuel filter for automobile

#114
20070241044
2007-10-18

Fuel filter

#115
20070114170
2007-05-24

Fuel filter cartridge apparatus

#116
20070034580
2007-02-15

Fluid filter arrangement including valve arrangement and methods

#117
20070034560
2007-02-15

Drain valve alignment system for filter assembly

#118
20060201871
2006-09-14

Filter element with drainage tube

#119
20060175241
2006-08-10

Drain valve insert

#120
20060163146
2006-07-27

Fuel filter for diesel engines with high pressure direct injection of common rail type and the like

#121
20060144767
2006-07-06

Fuel filter

#122
20060070956
2006-04-06

Liquid filter

#123
20060037908
2006-02-23

Reverse flow fuel filter

#124
20050005584
2005-01-13

Filtering device with enhanced bleeding assembly and diesel fuel supply line comprising same

#125
20050000198
2005-01-06

Fuel filter