ClassID:

29347

B01D36/003 - CPC Classification

Classification description:

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

Sub-classes:
Recent Application in this class:
#1
20260138067
2026-05-21

FILTER ASSEMBLIES UTILIZING FULL CROSS-SECTION

#2
20260052647
2026-02-19

COOLANT SUPPLY ASSEMBLY

#3
20260042040
2026-02-12

FUEL FILTER

#4
20260002505
2026-01-01

FUEL WATER SEPARATOR FILTER WITH WATER COLLECTION FEATURES

#5
20250345727
2025-11-13

FILTER SEALING ARRANGEMENT TO FUNCTIONAL CARRIER

#6
20250331697
2025-10-30

SURFACE CLEANING APPARATUS

#7
20250331696
2025-10-30

SURFACE CLEANING APPARATUS

#8
20250253436
2025-08-07

SUPPLY MODE

#9
20250160598
2025-05-22

SURFACE CLEANING APPARATUS

#10
20250010227
2025-01-09

Fuel Water Separator for Operation Under Vacuum

#11
20250001338
2025-01-02

MULTIPHASE SUPERHYDROPHOBIC SEPARATOR

#12
20240350949
2024-10-24

FUEL FILTER

#13
20240299868
2024-09-12

FILTER DEVICE

#14
20240268621
2024-08-15

Surface cleaning apparatus

#15
20240261711
2024-08-08

VALVE ARRANGEMENT, LIQUID FILTERS, FILTER ASSEMBLIES, AND METHOD

#16
20240173653
2024-05-30

BOWL FILTER CARTRIDGE ARRANGEMENT HAVING TRAP AND METHODS

#17
20240173650
2024-05-30

PERFORATED LAYER COALESCER

#18
20240066446
2024-02-29

MULTISTAGE FILTER WITH HYDROPHOBIC SCREEN

#19
20240050877
2024-02-15

Water drainage device, filter module, and method

#20
20240001267
2024-01-04

FILTER ASSEMBLY INCLUDING SEPARATE FUEL AND WATER FLOW PATHS

#21
20230381691
2023-11-30

FILTER DEVICE AND SEPARATING APPARATUS

#22
20230372839
2023-11-23

Methods and Systems for Thermal Fluid Conditioning and Delivery

#23
20230332567
2023-10-19

Filter device

#24
20230264885
2023-08-24

Surface cleaning apparatus

#25
20230219018
2023-07-13

Water retention barrier

#26
20230173413
2023-06-08

Fuel filter with coalescer

#27
20230165426
2023-06-01

Surface cleaning apparatus

#28
20230116479
2023-04-13

HAZARDOUS WASTE DISPOSAL SYSTEM AND METHOD

#29
20230075592
2023-03-09

WATER SEPARATING SCREEN FOR A FILTER ELEMENT IN A LIQUID FILTER

#30
20230039089
2023-02-09

DRAIN VALVE

#31
20230001333
2023-01-05

Filter system comprising a pump and filter head module for a filter system

#32
20220387913
2022-12-08

Integrated module with stage one and stage two filters combined in single housing

#33
20220379245
2022-12-01

Advanced Fuel Filtration System with Interlocking Cartridge Seal Design

#34
20220355230
2022-11-10

Multi-function hydraulic separator

#35
20220288513
2022-09-15

Water drainage device, filter module, and method

#36
20220193579
2022-06-23

STAR PLEATING WITH INSIDE OUT FLOW HAVING WATER DRAINAGE THROUGH THE CENTER

#37
20220152527
2022-05-19

Perforated layer coalescer

#38
20220152526
2022-05-19

Perforated layer coalescer

#39
20220118386
2022-04-21

FILTER ASSEMBLIES UTILIZING FULL CROSS-SECTION

#40
20220118384
2022-04-21

Fuel filter

#41
20220096974
2022-03-31

ADJUSTABLE RING ASSEMBLY FOR TWO-DIMENSIONAL FILTRATION

#42
20220032217
2022-02-03

Valve arrangement, liquid filters, filter assemblies, and method

#43
20220003194
2022-01-06

FUEL FILTER

#44
20210308608
2021-10-07

FILTER INSERT FOR A FUEL FILTER WITH THREE-STAGE FILTRATION

#45
20210260498
2021-08-26

Phase separation device

#46
20210162425
2021-06-03

Kitchen garbage processor

#47
20210146278
2021-05-20

Water retention barrier

#48
20210041326
2021-02-11

Fluid storage testing apparatus, systems, and methods

#49
20210040924
2021-02-11

FILTER DEVICE

#50
20210008474
2021-01-14

Coalescing filter element and filter assembly therefore

#51
20200406177
2020-12-31

FUEL FILTER

#52
20200406176
2020-12-31

Fuel filter

#53
20200406170
2020-12-31

Filter device

#54
20200406169
2020-12-31

Fuel filter with coalescer

#55
20200391146
2020-12-17

Fuel water separator filter with an improved sealing arrangement

#56
20200386198
2020-12-10

FUEL FILTER DEVICE FOR AN INTERNAL COMBUSTION ENGINE

#57
20200318589
2020-10-08

Gas/liquid coalescing filter auto drain

#58
20200246737
2020-08-06

Integrated module with stage one and stage two filters combined in single housing

#59
20200232511
2020-07-23

Oil filter/liquid indicator assembly

#60
20200224618
2020-07-16

Fuel filter assembly

#61
20200222834
2020-07-16

End cap for filter element

#62
20200122067
2020-04-23

Filter Element and Filter System for a Liquid Medium, in Particular Diesel Fuel

#63
20200116265
2020-04-16

Compact double shut-off valve

#64
20200086235
2020-03-19

APPARATUS AND METHODS FOR FILTERING/COALESCING GAS

#65
20200030723
2020-01-30

CLEANING SOLUTION FILTER FOR LINEAR COATER, METHOD FOR FILTERING CLEANING SOLUTION AND LINEAR COATER

#66
20200017797
2020-01-16

System for recovery of waste gel-mass from softgel manufacturing process

#67
20200016518
2020-01-16

Device for treating fluid

#68
20200001215
2020-01-02

Filter device

#69
20190358565
2019-11-28

Fuel filter for cleaning fuel for an internal combustion engine

#70
20190282930
2019-09-19

Perforated layer coalescer

#71
20190262746
2019-08-29

Fuel pre-filtering element

#72
20190255467
2019-08-22

Rotating type foreign substance collection equipment

#73
20190255466
2019-08-22

Filter element

#74
20190240602
2019-08-08

Facial sealing system for a filter

#75
20190176061
2019-06-13

Filter center tube with standpipe and flow fins

#76
20190145294
2019-05-16

Filter for filtering liquids and filter element of such a filter

#77
20190134988
2019-05-09

Froth coalescing

#78
20190126170
2019-05-02

Froth coalescing

#79
20190112774
2019-04-18

System and method for dewatering sediment ponds

#80
20190105587
2019-04-11

Filter insert of a fuel filter, filter insert, and fuel filter

#81
20190082925
2019-03-21

Surface cleaning apparatus

#82
20190082924
2019-03-21

Surface cleaning apparatus

#83
20190082923
2019-03-21

Surface cleaning apparatus

#84
20190082922
2019-03-21

Surface cleaning apparatus

#85
20190082915
2019-03-21

Surface cleaning apparatus

#86
20190082911
2019-03-21

Surface cleaning apparatus

#87
20190082910
2019-03-21

Surface cleaning apparatus

#88
20190082909
2019-03-21

Surface cleaning apparatus

#89
20190082908
2019-03-21

Surface cleaning apparatus

#90
20190082907
2019-03-21

Surface cleaning apparatus

#91
20190082906
2019-03-21

Surface cleaning apparatus

#92
20190082904
2019-03-21

Surface cleaning apparatus

#93
20190082903
2019-03-21

Surface cleaning apparatus

#94
20190001245
2019-01-03

Filter device

#95
20180348191
2018-12-06

SYSTEM AND METHOD FOR IMPROVING FUEL QUALITY

#96
20180347631
2018-12-06

Oil filter/liquid indicator assembly

#97
20180345188
2018-12-06

Filter device

#98
20180333662
2018-11-22

Filter system with central element and strainer filter

#99
20180326331
2018-11-15

FILTER ELEMENT FOR A LIQUID FILTER

#100
20180290086
2018-10-11

Fuel Filter

#101
20180257009
2018-09-13

Dry filter

#102
20180250617
2018-09-06

Filter housing

#103
20180243670
2018-08-30

Filter device having a pump

#104
20180230952
2018-08-16

Coalescence element and filter element having a coalescence element

#105
20180200645
2018-07-19

SEPARATION SYSTEM FOR SIMULTANEOUS REMOVAL OF BOTH SOLID PARTICLES AND LIQUID DROPLETS SUSPENDED IN ANOTHER LIQUID

#106
20180163680
2018-06-14

Water separation element comprising a support piece

#107
20180161708
2018-06-14

FLUID FILTER SYSTEM

#108
20180126309
2018-05-10

Standpipe with flow restriction valve, and filter cartridge

#109
20180028949
2018-02-01

Fuel filter insert, and fuel filter comprising a prefilter element and a main filter element and comprising a water separating unit

#110
20180023526
2018-01-25

Removing water from fuel tanks

#111
20180008918
2018-01-11

Fuel filter insert with a prefilter and a main filter element, and fuel filter

#112
20180008912
2018-01-11

Fuel filter comprising a fuel filter insert with a prefilter element and a main filter element

#113
20170368484
2017-12-28

WATER AND OIL SEPARATION METHOD USING COMPRESSING TUBES TO VAPORIZE WATER

#114
20170361249
2017-12-21

Filter center tube with standpipe and flow fins

#115
20170326484
2017-11-16

Coalescing filter element and filter assembly therefore

#116
20170312663
2017-11-02

Bypass filter method and device

#117
20170234281
2017-08-17

Fuel filter

#118
20170209821
2017-07-27

Filter element and filter system

#119
20170204821
2017-07-20

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

#120
20170203243
2017-07-20

Filter element and filter system with siphon venting arrangement

#121
20170203242
2017-07-20

Filter element and filter system for a liquid medium with ventilation on the post-filtration side and on the pre-filtration side

#122
20170197162
2017-07-13

FILTER CARTRIDGE HAVING SEPARABLE FILTER COMPONENTS

#123
20170197160
2017-07-13

Filter system, closure element, and filter element

#124
20170144091
2017-05-25

Fuel filter with water separator

#125
20170107957
2017-04-20

Water discharge system and method

#126
20170080366
2017-03-23

Filter device

#127
20170067426
2017-03-09

Diesel fuel filter assembly

#128
20170050134
2017-02-23

Coalescing element of a water separator device, and water separator device

#129
20160317955
2016-11-03

Filter element with multi-stage water-separating action and with bayonet connection, and fuel filter having a filter element of said type

#130
20160265496
2016-09-15

Fuel filter insert having a pre- and a main filter element, and a fuel filter

#131
20160258398
2016-09-08

Fuel filter device

#132
20160258397
2016-09-08

Fuel water separator filter

#133
20160237965
2016-08-18

Filter and system for removing emulsified water from a liquid

#134
20160222931
2016-08-04

Fuel water separator filter

#135
20160215740
2016-07-28

Fuel filter

#136
20160184750
2016-06-30

Filter device with releasably securable end cap and sealing arrangement

#137
20160151727
2016-06-02

Filter element for a liquid filter

#138
20160151723
2016-06-02

WATER SEPARATING SCREEN FOR A FILTER ELEMENT IN A LIQUID FILTER

#139
20160121248
2016-05-05

Sludge concentrator assembly with varying first stage separator, combined with a second stage, clean flow outlet incorporating fixed and variable flow restrictor orifices

#140
20160076353
2016-03-17

Oil filtration system for subsea oil-filled machines

#141
20160030863
2016-02-04

Portable pre-filtering fuel filler device

#142
20160023139
2016-01-28

Filter device and filter element provided therefor

#143
20160010605
2016-01-14

Fuel filter of an internal combustion engine and filter element of a fuel filter

#144
20160002606
2016-01-07

Method for influenza virus purification

#145
20150292455
2015-10-15

Filter assembly for separating water from fuel

#146
20150267658
2015-09-24

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

#147
20150263367
2015-09-17

Filter apparatus

#148
20150182892
2015-07-02

Filter assembly with water evacuation and methods

#149
20150122720
2015-05-07

Water separating device, filter element of a fuel filter and a fuel filter

#150
20150101975
2015-04-16

Filter element and filter system for a liquid medium, in particular diesel fuel

#151
20140311963
2014-10-23

Coalescing filter element and filter assembly therefore

#152
20140284264
2014-09-25

Fuel filter of an internal combustion engine, and filter element of a fuel filter

#153
20140197090
2014-07-17

Multistage high capacity and depth coalescing media system

#154
20140102969
2014-04-17

Filter device, in particular fuel filter or oil filter

#155
20140008286
2014-01-09

Replaceable filter elements including plural filter media and related filtration systems, techniques and methods

#156
20130306540
2013-11-21

No filter no run fluid filtration system

#157
20130269533
2013-10-17

Filter element with automatic air bleeding

#158
20130248464
2013-09-26

Filter assembly with water evacuation and methods

#159
20130220945
2013-08-29

Feeder with screen for shaker

#160
20130180907
2013-07-18

Sludge concentrator assembly incorporating upper centrifugal separator and lower barrier filter and exhibiting high flow velocity clean fluid outlet combined with low flow velocity solid entrapment

#161
20130180899
2013-07-18

Filtering element

#162
20130180898
2013-07-18

Fluid filter assembly with a filter cartridge and housing interface

#163
20130146523
2013-06-13

Fuel filter of an internal combustion engine and filter element of a fuel filter

#164
20130121980
2013-05-16

Method for separating components in natural oil

#165
20130098824
2013-04-25

Filter device, in particular liquid filter

#166
20130062270
2013-03-14

Filter appliance

#167
20130048554
2013-02-28

Filter and filter element provided therefor

#168
20130048552
2013-02-28

Filter device and filter element provided therefor

#169
20130015116
2013-01-17

Drainage device for closed chamber containing liquid

#170
20130001152
2013-01-03

Filter device with releasably securable end cap and sealing arrangement

#171
20120318728
2012-12-20

Filter device with water separator, separation zone, collection space and plural fluid passages, including dual passages within an adapter part secured upon a filter element retainer

#172
20120315193
2012-12-13

Apparatus for generating hydrocarbon fuel

#173
20120301800
2012-11-29

Filter apparatus

#174
20120279478
2012-11-08

Fuel filter adapter

#175
20120234743
2012-09-20

Filter device

#176
20120223001
2012-09-06

FILTER AND CENTER TUBE WITH HELICAL FIN

#177
20120168366
2012-07-05

Fuel filter of an internal combustion engine

#178
20120160760
2012-06-28

DEVICE FOR REDUCING DIMENSIONS OF AIR BUBBLES IN DIESEL FUEL SUPPLIED TO ENGINES

#179
20120103880
2012-05-03

FUEL FILTER HAVING INTEGRATED SENSORS

#180
20120080367
2012-04-05

In-tank fuel delivery module having an accessible fuel filter

#181
20120043267
2012-02-23

Water separator, in particular for fuel supply systems of internal combustion engines in motor vehicles

#182
20120037556
2012-02-16

Filter element and filter assembly including locking mechanism

#183
20120012513
2012-01-19

Filter element and filter module

#184
20120006737
2012-01-12

Replaceable filter elements including plural filter media and related filtration systems, techniques and methods

#185
20110277301
2011-11-17

Pleated single phase filter coalescer element and method

#186
20110259808
2011-10-27

Filter with end cap features

#187
20110259796
2011-10-27

Apparatus and method for removing contaminants from industrial fluids

#188
20110203982
2011-08-25

Filter device

#189
20110168647
2011-07-14

Modular filter elements for use in a filter-in-filter cartridge

#190
20110168621
2011-07-14

Two stage fuel water separator and particulate filter utilizing pleated nanofiber filter material

#191
20110127211
2011-06-02

DIESEL FUEL FILTER

#192
20110089101
2011-04-21

FUEL FILTER

#193
20110073538
2011-03-31

Flow restriction valve and filter cartridge

#194
20110062075
2011-03-17

Space reducing filter with supplemental fluid processing element

#195
20110062072
2011-03-17

Filter with main and supplemental filter elements and optional bubble breaker

#196
20110056879
2011-03-10

Air and contaminant isolation and removal apparatus and method

#197
20110036770
2011-02-17

Sealing device of a filter system for filtering fluids

#198
20110031181
2011-02-10

FUEL FILTER ASSEMBLY AND METHODS

#199
20110017649
2011-01-27

Two stage filter cartridge

#200
20110006017
2011-01-13

Dual stage filtration with barrier for fuel water separation

#201
20100314303
2010-12-16

Three-stage fuel filter

#202
20100294712
2010-11-25

Multi-stage filter cartridge with polyurethane endcaps

#203
20100276358
2010-11-04

No filter no run fluid filtration system

#204
20100258488
2010-10-14

LIQUID-CONDUCTING HOLLOW CROSS-SECTION

#205
20100206800
2010-08-19

WATER SEPARATOR, IN PARTICULAR FOR FUEL SUPPLY SYSTEMS OF INTERNAL COMBUSTION ENGINES IN MOTOR VEHICLES

#206
20100158944
2010-06-24

Method for influenza virus protection

#207
20100155324
2010-06-24

Filter apparatus

#208
20100155318
2010-06-24

Ring filter insert for a liquid filter

#209
20100006494
2010-01-14

BIO-RESISTANT FILTER COALESCER CARTRIDGE

#210
20100000916
2010-01-07

Fluid filter comprising a protected liquid sensor

#211
20090250402
2009-10-08

REPLACEABLE FILTER ELEMENTS INCLUDING PLURAL FILTER MEDIA AND RELATED FILTRATION SYSTEMS, TECHNIQUES AND METHODS

#212
20090211959
2009-08-27

FILTER ARRANGMENT AND METHODS

#213
20090184044
2009-07-23

In-tank fuel delivery module having an accessible fuel filter

#214
20090145823
2009-06-11

Process and apparatus for separating out and removing water present in liquid fuels, especially water from diesel oil

#215
20090120867
2009-05-14

Apparatus and method for de-watering and purifying fuel oils and other liquids

#216
20090077893
2009-03-26

Apparatus for generating hydrocarbon fuel

#217
20090065427
2009-03-12

Filter cartridge

#218
20090065425
2009-03-12

Filter cartridge with crush ribs

#219
20090065419
2009-03-12

Filter cartridge with snap fit connection

#220
20090056542
2009-03-05

Fluid filter separator and method

#221
20090020465
2009-01-22

Standpipe with flow restriction valve, and filter cartridge

#222
20090001027
2009-01-01

Filter apparatus and method of removing organic waste

#223
20080314809
2008-12-25

FILTER MONITOR

#224
20080308474
2008-12-18

Diesel Fuel Filter

#225
20080290018
2008-11-27

Filter apparatus

#226
20080245719
2008-10-09

Filter element and filter assembly including locking mechanism

#227
20080210618
2008-09-04

Fuel filter

#228
20080197064
2008-08-21

Filter device, in particular fluid filter, with a heater

#229
20080197060
2008-08-21

Double Acting Fuel Filter Unit

#230
20080185331
2008-08-07

Fuel filter device

#231
20080135469
2008-06-12

Two-level fuel filter device

#232
20080060985
2008-03-13

Wave coil filter assembly

#233
20080053888
2008-03-06

Pleated single phase filter coalescer element and method

#234
20080035537
2008-02-14

Fuel filter system

#235
20070289915
2007-12-20

Replaceable filter elements including plural filter media and related filtration systems, techniques and methods

#236
20070221566
2007-09-27

Filter for separating two liquids or liquid constituents from a gas

#237
20070210008
2007-09-13

FILTER MONITOR

#238
20070175807
2007-08-02

Liquid circuit

#239
20070125695
2007-06-07

Device for separating water and filtering impurities out of fuel

#240
20070114160
2007-05-24

Fuel filter of an internal combustion engine

#241
20070090043
2007-04-26

Diesel filter

#242
20070090037
2007-04-26

Diesel filter

#243
20070084776
2007-04-19

Water separation and filtration structure

#244
20070062860
2007-03-22

Fluid control device

#245
20070039865
2007-02-22

Apparatus, system, and method for multistage water separation

#246
20070023339
2007-02-01

Filter Assembly And Filter Element

#247
20070017370
2007-01-25

Filter element

#248
20060283815
2006-12-21

Fluid filtering with contaminant removal

#249
20060219625
2006-10-05

High-efficiency fuel-water filter

#250
20060207948
2006-09-21

Filter assemblies and methods

#251
20060201865
2006-09-14

Fuel filter with keys

#252
20060196821
2006-09-07

Filter for absorbing water

#253
20060186031
2006-08-24

Filter apparatus

#254
20060180527
2006-08-17

Device to separate particles of solids and high-density fluids from fluids of lower-density

#255
20060169630
2006-08-03

Filter assemblies with valves

#256
20060163128
2006-07-27

Filters

#257
20060091060
2006-05-04

Filter assemblies and valves for filter assemblies

#258
20060086652
2006-04-27

Filter element for keyed latch valve

#259
20060086649
2006-04-27

Automatic water drain for suction fuel water separators

#260
20060053756
2006-03-16

Filter system integrating pressure regulation and air vent

#261
20060037908
2006-02-23

Reverse flow fuel filter

#262
20060016769
2006-01-26

Filter assembly and methods

#263
20060006109
2006-01-12

Fuel filter system

#264
20050274664
2005-12-15

Fuel filter with clean water outlet

#265
20050252847
2005-11-17

Fuel module

#266
20050199541
2005-09-15

Fuel filter with fuel-activating function

#267
20050145559
2005-07-07

Filter assembly

#268
20050121374
2005-06-09

Device for bleeding the separated water from a fuel filter

#269
20050109685
2005-05-26

Fuel tank with filters

#270
20050103700
2005-05-19

Filter device

#271
20050072721
2005-04-07

Fuel filter with keys

#272
20050056586
2005-03-17

Liquid separator

#273
20050023208
2005-02-03

Method of filtering a fluid with a filter assembly

#274
20050000876
2005-01-06

Keyed latch valve for fuel filter

#275
16444108
2019-10-01

System and method to combine a filter system with a freeze dryer to filter contamination of a vacuum pump

#276
15975149
2020-06-30

Marine propulsion systems and fuel filters for marine propulsion systems

#277
13208859
2014-09-16

Smart water discharge monitoring system