ClassID:

30127

B01D2201/4046 - CPC Classification

Classification description:

Details relating to filtering apparatus; Special measures for connecting different parts of the filter Means for avoiding false mounting of different parts

Sub-classes:
Recent Application in this class:
#1
20260110668
2026-04-23

FILTER ASSEMBLIES, DEPTH INDICATORS, TORQUE-LIMITING FITTINGS, TORQUE-INDICATING FITTINGS, AND SYSTEMS INCORPORATING THE SAME

#2
20260014500
2026-01-15

MIKVAH SANITATION DEVICES

#3
20250352928
2025-11-20

Water Filter System and Method

#4
20250296024
2025-09-25

FILTER SYSTEM AND FILTER ELEMENT FOR A FLUID

#5
20250281857
2025-09-11

FILTER DEVICE AND UNDERWATER CLEANING DEVICE

#6
20250010225
2025-01-09

GRAVITY-FED FILTER INTERCONNECT UTILIZING CODED POLYMAGNETS

#7
20250001330
2025-01-02

APPARATUS FOR FILTERING AND CLEANING WATER IN A MIKVAH (JEWISH RITUAL PURIFICATION BATH), WHICH COMPLY WITH JEWISH RELIGIOUS LAWS (HALACHA), AND APPLICATIONS THEREOF

#8
20240350950
2024-10-24

WATER COOLER FILTER WITH SECURE BAYONET-TYPE CONNECTION

#9
20240189746
2024-06-13

Water tank having a filter cartridge

#10
20240149194
2024-05-09

Filter System with a Filter Element and a Safety Assembly, a Safety Assembly, and a Filter Element

#11
20240141668
2024-05-02

Garbage Bin

#12
20240082760
2024-03-14

FILTRATION SEALING SYSTEM

#13
20240082756
2024-03-14

Filter System with a Filter Element and a Safety Assembly, a Safety Assembly, and a Filter Element

#14
20240066451
2024-02-29

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

#15
20240066444
2024-02-29

LIQUID FILTER ASSEMBLIES; FEATURES; COMPONENTS; AND, METHODS

#16
20230405502
2023-12-21

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

#17
20230398476
2023-12-14

Gravity-fed filter interconnect utilizing coded polymagnets

#18
20230256368
2023-08-17

FILTER CARTRIDGE

#19
20230256367
2023-08-17

Water tank with filter cartridge

#20
20230256366
2023-08-17

Water tank with filter cartridge

#21
20230242416
2023-08-03

FILTER CARTRIDGE

#22
20230110390
2023-04-13

FILTER ASSEMBLIES, DEPTH INDICATORS, TORQUE-LIMITING FITTINGS, TORQUE-INDICATING FITTINGS, AND SYSTEMS INCORPORATING THE SAME

#23
20220305415
2022-09-29

Filter System and Filter Element

#24
20220258082
2022-08-18

Torsional No Filter No Run System and Method

#25
20220249990
2022-08-11

Liquid filter arrangement; components; and, methods

#26
20220249987
2022-08-11

Water purification filter

#27
20220203276
2022-06-30

Reinforced spin on rechargeable filter and related method of manufacture

#28
20220193592
2022-06-23

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

#29
20220080344
2022-03-17

Interlock for genuine filter recognition

#30
20220040609
2022-02-10

WATER FILTER SYSTEM

#31
20220040608
2022-02-10

WATER FILTER SYSTEM

#32
20220040607
2022-02-10

WATER FILTER SYSTEM

#33
20220040606
2022-02-10

Water filter system

#34
20210322903
2021-10-21

Gravity-fed filter interconnect utilizing coded polymagnets

#35
20210291090
2021-09-23

Water purifying apparatus and refrigerator including the same

#36
20210268411
2021-09-02

LIQUID FILTER ASSEMBLY

#37
20210252432
2021-08-19

FILTER PLATE ASSEMBLY FOR FILTER

#38
20210236966
2021-08-05

Retrofittable no filter no run filtration system

#39
20210229009
2021-07-29

Water cooler filter with secure bayonet-type connection

#40
20210215125
2021-07-15

Exchangeable filter of a treatment device for treatment of, in particular, liquid fluids and a treatment device

#41
20210187419
2021-06-24

Liquid filter assemblies; features; components; and, methods

#42
20210140350
2021-05-13

Liquid filter device

#43
20210060469
2021-03-04

Filter interconnects utilizing magnetic shear force generated by coded polymagnets

#44
20210053001
2021-02-25

Key system to ensure correct use of inserts

#45
20210053000
2021-02-25

FILTER LEAK PATH PREVENTION VIA INTERFERENCE PIN

#46
20210023492
2021-01-28

Interlock for genuine filter recognition

#47
20210016211
2021-01-21

Filtration system with automatic drain plug

#48
20210016210
2021-01-21

Filter Arrangement, Connection Interface Element and Filter Interface Unit

#49
20210001250
2021-01-07

Filter cartridge with command device

#50
20200324231
2020-10-15

Filter assembly for water purifier

#51
20200289966
2020-09-17

Filter leak path prevention via interference pin

#52
20200238205
2020-07-30

Liquid filter arrangements and methods

#53
20200230537
2020-07-23

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

#54
20200230534
2020-07-23

Water filter system

#55
20200206656
2020-07-02

Filters

#56
20200179844
2020-06-11

Liquid filter assembly

#57
20200086275
2020-03-19

Membrane pocket module having rotationally secured deflection discs

#58
20200086252
2020-03-19

Liquid filter arrangement; components; and, methods

#59
20200016518
2020-01-16

Device for treating fluid

#60
20200009485
2020-01-09

Genuine filter recognition with filter monitoring system

#61
20190374886
2019-12-12

Filtration system with automatic drain plug

#62
20190374885
2019-12-12

Water cooler filter with secure bayonet-type connection

#63
20190366247
2019-12-05

Filter insert for a filter having a filter bypass valve, and a method of using the filter insert

#64
20190329162
2019-10-31

Filter element assembly

#65
20190284975
2019-09-19

LIQUID FILTER MODULE

#66
20190262751
2019-08-29

Filter system and filter element

#67
20190217230
2019-07-18

Filter system

#68
20190209951
2019-07-11

Self-adjusting air management valve for a filter assembly

#69
20190203674
2019-07-04

Filter element and associated filter apparatus

#70
20190151780
2019-05-23

Liquid filter assemblies; features; components; and, methods

#71
20190099699
2019-04-04

Filter plate assembly for filter

#72
20190083911
2019-03-21

Canister Transmission Filter System

#73
20190076758
2019-03-14

Retrofittable no filter no run filtration system

#74
20190070537
2019-03-07

Filter and a method for checking the suitability of a filter element

#75
20190060802
2019-02-28

Filter element for a vehicle

#76
20190046905
2019-02-14

Torsional no filter no run system and method

#77
20190046904
2019-02-14

Filter insert and a filter arrangement

#78
20190046903
2019-02-14

Filter insert and a filter arrangement

#79
20190039002
2019-02-07

Filtration sealing system

#80
20180345195
2018-12-06

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

#81
20180326333
2018-11-15

Fluid filter and filter insert for the same

#82
20180290085
2018-10-11

Water filter system

#83
20180272257
2018-09-27

Filter coupling device and substrate treating apparatus provided therewith

#84
20180257011
2018-09-13

Filter insert and guide arrangement

#85
20180214803
2018-08-02

NO FILTER NO RUN FEATURE FOR FILTER

#86
20180147510
2018-05-31

Filter system

#87
20180140985
2018-05-24

Methods and apparatuses for missing filter detection and prevention in rotating coalescer designs

#88
20180126309
2018-05-10

Standpipe with flow restriction valve, and filter cartridge

#89
20180001243
2018-01-04

Filtration sealing system

#90
20180001238
2018-01-04

Filter leak path prevention via interference pin

#91
20170348623
2017-12-07

Filter device

#92
20170348622
2017-12-07

Liquid filter arrangement; components; and, methods

#93
20170312666
2017-11-02

Refrigeration appliance and filter cartridge for same

#94
20170296950
2017-10-19

Liquid filter arrangement and methods

#95
20170292418
2017-10-12

Exchangeable filter of a treatment device for treatment of, in particular, liquid fluids and treatment device

#96
20170252678
2017-09-07

Filter cartridge

#97
20170204821
2017-07-20

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

#98
20170203243
2017-07-20

Filter element and filter system with siphon venting arrangement

#99
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

#100
20170189839
2017-07-06

Key system to ensure correct use of inserts

#101
20170087486
2017-03-30

Filter element with central element for a filter system

#102
20170030384
2017-02-02

Filter for hydraulic fluids for hydraulic circuits and process of making the same

#103
20170028322
2017-02-02

Liquid filter assemblies; features; components; and, methods

#104
20170021294
2017-01-26

Keyed system for connection of filter cartridge to filter holder

#105
20170021291
2017-01-26

Filter housing with end cap seal

#106
20160346719
2016-12-01

Filtration sealing system

#107
20160310880
2016-10-27

Filters, filter assemblies, filter systems and methods for identifying installation of qualified filter elements

#108
20160236128
2016-08-18

Air filter cartridges; air cleaner assemblies; housings; features; components; and, methods

#109
20160236119
2016-08-18

Filter cartridge

#110
20160220931
2016-08-04

Filter having a filter bypass valve, and filter insert therefor

#111
20160175743
2016-06-23

Water filter cartridge with slanted nozzles

#112
20160144307
2016-05-26

Liquid filter, assembly, system, and methods

#113
20160074786
2016-03-17

Filters, filter assemblies, filter systems and methods for identifying installation of qualified filter elements

#114
20160059165
2016-03-03

Latch reset filter unit

#115
20160045848
2016-02-18

Air filter cartridges; air cleaner assemblies; housings; features; components; and, methods

#116
20160038861
2016-02-11

Filter element comprising hollow cylindrical filter medium body and filter device

#117
20160001206
2016-01-07

Fluid filter with replaceable filter insert

#118
20160001204
2016-01-07

Liquid filter assembly, system and methods

#119
20150367263
2015-12-24

Liquid filter arrangement and methods

#120
20150337695
2015-11-26

Liquid filter with a filter bypass valve and with a central discharge duct, and filter insert for a liquid filter

#121
20150336032
2015-11-26

Filter plate assembly for filter

#122
20150190742
2015-07-09

Keyed spin-on filter element

#123
20150157968
2015-06-11

Liquid filter with a central discharge channel and filter unit for a liquid filter

#124
20150114895
2015-04-30

Filter unit

#125
20150101295
2015-04-16

Filter element wave seal gland

#126
20150090656
2015-04-02

Liquid filter arrangement; components; and, methods

#127
20150068966
2015-03-12

Filter cartridge

#128
20150008173
2015-01-08

Manifold bracket assembly for a modular encapsulated water treatment system

#129
20140374335
2014-12-25

Water filter system

#130
20140366494
2014-12-18

Filter with a replaceable filter insert

#131
20140360929
2014-12-11

Interlock device

#132
20140353234
2014-12-04

Filter housing with locking form-fit elements and spring loading a filter element in the housing

#133
20140339146
2014-11-20

Filter alignment device

#134
20140339144
2014-11-20

Oil filter

#135
20140305861
2014-10-16

Liquid filter assembly; components; and, methods

#136
20140305858
2014-10-16

Filter element

#137
20140284266
2014-09-25

Filter assembly

#138
20140217259
2014-08-07

Mounting interface for a housing of a filtration module

#139
20140217001
2014-08-07

Keyed thread engagement on spin-on filter element

#140
20140190881
2014-07-10

Liquid filter having a drainage valve

#141
20140183116
2014-07-03

Liquid filter with an eccentric liquid discharge channel

#142
20140175000
2014-06-26

Keyed system for connection of filter cartridge to filter holder

#143
20140174999
2014-06-26

Keyed system for connection of filter cartridge to filter holder

#144
20140166570
2014-06-19

Fluid filter element

#145
20140138292
2014-05-22

Electronic interface for water filtration system

#146
20140048468
2014-02-20

Filtration sealing system

#147
20140021138
2014-01-23

Filtration system

#148
20140021110
2014-01-23

Filter assembly with modular relief valve interface

#149
20130306540
2013-11-21

No filter no run fluid filtration system

#150
20130285678
2013-10-31

Filters, filter assemblies, filter systems and methods for identifying installation of qualified filter elements

#151
20130270162
2013-10-17

Liquid filter having a filter bypass valve and filter insert therefor

#152
20130256207
2013-10-03

Liquid filter arrangement and methods

#153
20130240428
2013-09-19

Filter plate assembly for filter

#154
20130232934
2013-09-12

Air cleaner assemblies with filter element and method for installing the filter element

#155
20130228504
2013-09-05

Filter element

#156
20130228503
2013-09-05

Fluid filter with replaceable filter insert

#157
20130220909
2013-08-29

Water filter device having encoding structure

#158
20130193057
2013-08-01

Top load liquid filter assembly, system and methods

#159
20130193055
2013-08-01

Interlock device

#160
20130186815
2013-07-25

Filters

#161
20130180898
2013-07-18

Fluid filter assembly with a filter cartridge and housing interface

#162
20130081990
2013-04-04

Filter for filtering fluids, filter cup and filter head

#163
20130075319
2013-03-28

Filter, filter element, fastening housing part of a filter housing and telescopic switching element of a switching device of a releasable detent connection

#164
20130068684
2013-03-21

FILTER UNIT

#165
20130068683
2013-03-21

FILTER UNIT

#166
20130068682
2013-03-21

Water filter system

#167
20130068681
2013-03-21

Water filter unit

#168
20130068672
2013-03-21

Electronic interface for water filter system

#169
20130068670
2013-03-21

Filter unit

#170
20130067718
2013-03-21

Method of installing a filter unit

#171
20130062270
2013-03-14

Filter appliance

#172
20130031926
2013-02-07

Push filter with floating key lock

#173
20130008839
2013-01-10

Filtering device, and filtering element for use in such a filtering device

#174
20120325732
2012-12-27

Water filter cartridge system having a combined blending valve system in the candle and adjusting device in the head

#175
20120312172
2012-12-13

Filter element and air filter

#176
20120303204
2012-11-29

Fuel filter diagnostic system and filter cartridge

#177
20120297817
2012-11-29

Water filter with monitoring device and refrigeration appliance including same

#178
20120292240
2012-11-22

COMBINATION FILTER ARRANGMENT AND METHOD

#179
20120292234
2012-11-22

Water enhancement system

#180
20120261326
2012-10-18

Filter device

#181
20120228209
2012-09-13

Liquid filter assembly; components; and methods

#182
20120223006
2012-09-06

Filter device and filter element for use with such a filter device

#183
20120223003
2012-09-06

Fuel filter cartridge and keyed end cap

#184
20120211412
2012-08-23

Filter cartridge

#185
20120205300
2012-08-16

Liquid filter assemblies; features; components; and, methods

#186
20120187038
2012-07-26

PRESSURE FILTER DEVICE

#187
20120181224
2012-07-19

Filter element wave gland seal

#188
20120145621
2012-06-14

FLUID FILTRATION SYSTEM

#189
20120144854
2012-06-14

Push filter with floating key lock

#190
20120080369
2012-04-05

SPOOL VALVE MANIFOLD INTERCONNECT FOR A FILTER SYSTEM

#191
20120061307
2012-03-15

Filtration sealing system

#192
20120037556
2012-02-16

Filter element and filter assembly including locking mechanism

#193
20120031828
2012-02-09

Filter assembly, a filter element, and a method for replacing a filter element

#194
20120024771
2012-02-02

No filter no run filter assembly with air vent

#195
20120018359
2012-01-26

Filter device, in particular return line suction filter, and filter element for use in such a filter device

#196
20120012513
2012-01-19

Filter element and filter module

#197
20110303600
2011-12-15

Liquid filter assembly, system and methods

#198
20110297625
2011-12-08

Filter plate assembly for filter

#199
20110272340
2011-11-10

Filter assembly and filter element

#200
20110259838
2011-10-27

System for engine oil storage and filtration in an internal combustion engine

#201
20110259808
2011-10-27

Filter with end cap features

#202
20110233216
2011-09-29

Leak testing of a pressure vessel

#203
20110226688
2011-09-22

Liquid filter arrangements and methods

#204
20110214272
2011-09-08

CANTER ELEMENT CONTROLLED COMBINATION MANIFOLD, VALVE AND FILTER MODULE SYSTEM

#205
20110204092
2011-08-25

CONNECTOR APPARATUS AND SYSTEM INCLUDING CONNECTOR APPARATUS

#206
20110203985
2011-08-25

KEYED SYSTEM FOR CONNECTION OF FILTER TO FILTER HOLDER

#207
20110203099
2011-08-25

Fluid filter with an attachment structure on an endplate of the filtering element

#208
20110192782
2011-08-11

Fluid filtration system

#209
20110174712
2011-07-21

Filter assembly

#210
20110174705
2011-07-21

Filter cartridge and system using linear actuation

#211
20110168613
2011-07-14

Filter assembly

#212
20110147298
2011-06-23

Annular collar for encapsulated water treatment system

#213
20110147297
2011-06-23

Filter

#214
20110132816
2011-06-09

Filter Provided with a Clogging Detector and an Assembly for Detecting the Presence of a Filtering Element Therein

#215
20110089104
2011-04-21

Replaceable fuel filter element and fuel filter assembly

#216
20110089091
2011-04-21

Filter device

#217
20110073538
2011-03-31

Flow restriction valve and filter cartridge

#218
20110062061
2011-03-17

Filter assembly with modular relief valve interface

#219
20110042329
2011-02-24

Combination filter arrangement and method

#220
20110024337
2011-02-03

Filter with data storage provided with an antenna for transmitting signals

#221
20110017650
2011-01-27

Method for purifying oil and apparatus therefor

#222
20110006646
2011-01-13

Mounting interface for a housing of a filtration module

#223
20110005989
2011-01-13

Filtration systems and fitting arrangements for filtration systems

#224
20110005988
2011-01-13

KEYED FILTER ASSEMBLY

#225
20110000839
2011-01-06

FILTER CARTRIDGE CENTERING DEVICE

#226
20100326928
2010-12-30

Filtration System

#227
20100326392
2010-12-30

FILTER SYSTEM

#228
20100294711
2010-11-25

Filter device and filter element

#229
20100294703
2010-11-25

Water enhancement system

#230
20100288687
2010-11-18

KEYED FILTER ASSEMBLY

#231
20100282341
2010-11-11

Filter device and filter element

#232
20100276358
2010-11-04

No filter no run fluid filtration system

#233
20100276352
2010-11-04

Fuel filter with filter recognition

#234
20100264078
2010-10-21

LATCH RESET FILTER UNIT

#235
20100258493
2010-10-14

Filtration sealing system

#236
20100237001
2010-09-23

Encapsulated water treatment system

#237
20100237000
2010-09-23

Modular system for coupling water filter manifold heads

#238
20100224538
2010-09-09

Method Of Filtering And Filter Device

#239
20100219140
2010-09-02

Filter press with improved plate assembly and method of filtering

#240
20100191497
2010-07-29

Computer-implemented method of monitoring the performance of a reverse osmosis membrane in a drinking water supply system

#241
20100155321
2010-06-24

Filter assembly

#242
20100140157
2010-06-10

Liquid filter arrangement and methods

#243
20100122952
2010-05-20

Filter cartridge centering device

#244
20100116728
2010-05-13

Device for treating water, particularly a filtration device, and cartridge

#245
20100116350
2010-05-13

Self-centering filters, coalescers and separators

#246
20100108590
2010-05-06

Fluid filter with an attachment structure on an endplate of the filtering element

#247
20100096315
2010-04-22

FLUID FILTER WITH A FILTER ELEMENT WHICH CAN BE INSERTED INTO A FILTER HOUSING

#248
20100096302
2010-04-22

SYSTEM FOR MONITORING THE PERFORMANCE OF FLUID TREATMENT CARTRIDGES

#249
20100088873
2010-04-15

CANTER ELEMENT CONTROLLED COMBINATION MANIFOLD, VALVE AND FILTER MODULE SYSTEM

#250
20100065481
2010-03-18

Liquid filter assembly, components; and methods

#251
20100059427
2010-03-11

Filtering System, in Particular for Filtering Liquids in Internal Combustion Engines

#252
20100050877
2010-03-04

Filter installation device

#253
20100044295
2010-02-25

Liquid filter, assembly, system, and methods

#254
20100025317
2010-02-04

Replaceable filter cartridge

#255
20100018912
2010-01-28

Water filter device having encoding structure

#256
20100000929
2010-01-07

System comprising a fluid treatment module and a support structure

#257
20090321341
2009-12-31

FILTER SYSTEM FOR FLUIDS

#258
20090321340
2009-12-31

FILTER CARTRIDGE FOR USE WITH A FILTER HEAD ASSEMBLY

#259
20090301949
2009-12-10

Filtering system, in particular for filtering liquids in internal combustion engines

#260
20090283467
2009-11-19

Tank

#261
20090266757
2009-10-29

Tank

#262
20090242816
2009-10-01

Fuel filter housing with snap lock valve asssembly

#263
20090242475
2009-10-01

Replaceable fuel filter element and fuel filter assembly

#264
20090242473
2009-10-01

Tank

#265
20090242472
2009-10-01

Tank

#266
20090242470
2009-10-01

FILTER CLOSURE SYSTEM WITH BAYONET CLOSURE

#267
20090241315
2009-10-01

REPLACEABLE FUEL FILTER ELEMENT AND FUEL FILTER ASSEMBLY

#268
20090236277
2009-09-24

Modular Drinking Water Filtration System with Internal Sealing Between Valve Spindle and Head

#269
20090236276
2009-09-24

Modular drinking water filtration system with adapter rings for replaceable cartridges to assure proper fit

#270
20090236272
2009-09-24

Modular Drinking Water Filtration System with Keyed Attachment of Filter Head to Mounting Bracket and Modular Back Plates

#271
20090236271
2009-09-24

Modular drinking water filtration system with locking arrangement to assure filter cartridge compatibility

#272
20090230046
2009-09-17

Aircraft filter device with a member for keying and driving the cartridge

#273
20090229231
2009-09-17

AIRCRAFT FILTER DEVICE WITH THE FILTER BEING STOPPED IN ROTATION

#274
20090211990
2009-08-27

Filter plate assembly for filter

#275
20090211955
2009-08-27

Anti-drainback valve with position positive locking for spin-on oil and fuel filters

#276
20090200223
2009-08-13

Filter device for filtering a liquid and filter element for such a filter device

#277
20090188871
2009-07-30

Device, method and computer program product for carrying out a process for the filtration of fluids

#278
20090184045
2009-07-23

Fluid filter element

#279
20090173675
2009-07-09

Water filter cartridge system having a combined blending valve system in the candle and adjusting device in the head

#280
20090127170
2009-05-21

Filter device, especially for filtering liquids in internal combustion engines

#281
20090114588
2009-05-07

Fuel filter assembly with flow restriction sleeve

#282
20090114585
2009-05-07

Liquid filter arrangement; components; and, methods

#283
20090114584
2009-05-07

Keyed system for connection of filter cartridge to filter holder

#284
20090090668
2009-04-09

Fuel filter assembly with flow restriction valve

#285
20090078623
2009-03-26

Filter device

#286
20090020470
2009-01-22

Keyed filter assembly

#287
20090020465
2009-01-22

Standpipe with flow restriction valve, and filter cartridge

#288
20090014375
2009-01-15

Molded filter end cap and method of manufacture

#289
20090008322
2009-01-08

Filter element

#290
20090008317
2009-01-08

Filter cartridge and mounting system therefor having foolproofing means

#291
20080272033
2008-11-06

Water filter and treatment system and component

#292
20080264879
2008-10-30

Filter plate assembly for filter

#293
20080264850
2008-10-30

Filter Device, Especially for Filtering Liquids in Internal Combustion Engines

#294
20080245719
2008-10-09

Filter element and filter assembly including locking mechanism

#295
20080203033
2008-08-28

Encapsulated water treatment system

#296
20080164197
2008-07-10

Filtration systems

#297
20080142426
2008-06-19

Liquid filter arrangement and methods

#298
20080110811
2008-05-15

Environmentally friendly filter cartridge

#299
20080087597
2008-04-17

Water-conditioning cartridge

#300
20080073262
2008-03-27

Fuel filter cartridge and keyed end cap