ClassID:

29342

B01D35/31 - CPC Classification

Classification description:

Other filtering devices; Auxiliary devices for filtration; Filter housing constructions; Filter housing constructions including arrangements for environmental protection, e.g. pressure resisting features

Sub-classes:
Recent Application in this class:
#1
20260146781
2026-05-28

AIR DUCT ASSEMBLY FOR A REFRIGERATION APPLIANCE AND REFRIGERATION APPLIANCE

#2
20250352932
2025-11-20

FILTER ASSEMBLY FOR AN AIRCRAFT ENGINE

#3
20250262580
2025-08-21

POOL PUMP INLET FILTER ASSEMBLY

#4
20250186914
2025-06-12

PROTECTIVE INSULATIVE ENCLOSURES

#5
20240252961
2024-08-01

FILTER WITH ELECTROSTATIC DISCHARGE MITIGATION SLEEVE

#6
20240173654
2024-05-30

SEALING SYSTEMS AND METHODS FOR A FILTRATION SYSTEM

#7
20240139660
2024-05-02

FRACTURE SHIELD FILTER TOOL, METHOD AND SYSTEM

#8
20230249110
2023-08-10

BIODEGRADABLE CARTRIDGE OF A WATER FILTER

#9
20230191293
2023-06-22

MULTILAYER FIBER COMPOSITE FILTER MEDIA

#10
20230160227
2023-05-25

AUTONOMOUS IMPELLER VACUUM CLEANER FOR CLEANING SWIMMING POOLS

#11
20230086823
2023-03-23

Disposable sheath for oil filter removal and containment

#12
20220211475
2022-07-07

Disposable dental waste filter device

#13
20220047971
2022-02-17

Sealing systems and methods for a filtration system

#14
20210269235
2021-09-02

Disposable sheath for oil filter removal and containment

#15
20210231256
2021-07-29

Slip-On Splice-Filter Cage

#16
20200346146
2020-11-05

Filter with electrostatic discharge mitigation sleeve

#17
20200339436
2020-10-29

Sloped sunshade cover

#18
20200139280
2020-05-07

Water purifying filter

#19
20190262746
2019-08-29

Fuel pre-filtering element

#20
20190210202
2019-07-11

Fluid filter removal device and method of use

#21
20190209953
2019-07-11

Fluid extractor device and kit

#22
20180361279
2018-12-20

Filter device with filter element

#23
20180221798
2018-08-09

Liquid Filter Insert and Liquid Filter with Corrosion Protection for External Pumps

#24
20180133626
2018-05-17

Freezing resistant liquid filter

#25
20180050284
2018-02-22

CAPSULE INTENDED FOR A LIQUID FLOW COMPRISING AN INNER CASING AND AN OUTER UNIT

#26
20180028951
2018-02-01

FLUID EXTRACTOR DEVICE AND KIT

#27
20180015400
2018-01-18

Water purifying filter

#28
20180015399
2018-01-18

Water purifying filter

#29
20160332103
2016-11-17

Pin filter

#30
20160193552
2016-07-07

Freezing resistant liquid filter

#31
20160144306
2016-05-26

Oil filter adaptor and method of forming the same

#32
20160046502
2016-02-18

Self-contained water filtration system including wireless communication and filter verification and method of using the same

#33
20150369788
2015-12-24

Sensor Device, Filter Assembly, and Method for Manufacturing Same

#34
20150129478
2015-05-14

Filters and filter arrangements which include a filter and a manifold assembly

#35
20150114896
2015-04-30

Methods for moving a filter along a manifold assembly; filter arrangements including a filter and a manifold assembly; and filters

#36
20150114894
2015-04-30

Filters

#37
20150075643
2015-03-19

Fluid extractor device and kit

#38
20150014237
2015-01-15

Filter Element, Filter Device and Method

#39
20140158607
2014-06-12

FILTER WITH ABSORBING EXPANSION VOLUME

#40
20130126416
2013-05-23

Urea-Water Solution Filter System

#41
20120198970
2012-08-09

Oil Filter Removal Tool With Integral Oil Retaining Reservoir

#42
20120186690
2012-07-26

Filter Drain Kit and Method

#43
20120132582
2012-05-31

Filter device for filtering liquids

#44
20120091140
2012-04-19

ENVIRONMENTAL-FRIENDLY PLUG FOR USED OIL FILTER

#45
20120018364
2012-01-26

Filter device

#46
20110233122
2011-09-29

In-tank filter of fuel pump module

#47
20110225786
2011-09-22

Drainable oil filter system and method for draining oil from an engine

#48
20110168613
2011-07-14

Filter assembly

#49
20100126946
2010-05-27

SYSTEM AND MOTHOD FOR FILTERINGEITH SAFETY FEATURES

#50
20100084026
2010-04-08

Oil filter drain tool

#51
20100012574
2010-01-21

Horizontal filter stage with simultaneous venting and draining

#52
20100000922
2010-01-07

Truss type high pressure center support for liquid filtration

#53
20090230046
2009-09-17

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

#54
20090229231
2009-09-17

AIRCRAFT FILTER DEVICE WITH THE FILTER BEING STOPPED IN ROTATION

#55
20090218273
2009-09-03

Filter Fluid Capture Device

#56
20090101597
2009-04-23

Filter diaper and method

#57
20090001010
2009-01-01

Oil filter device for an internal combustion engine

#58
20080185329
2008-08-07

Strengthening construction for depressing cap of water filter

#59
20080121582
2008-05-29

FILTER RECYCLING UNIT

#60
20080110811
2008-05-15

Environmentally friendly filter cartridge

#61
20080023389
2008-01-31

Replaceable filter element with integral annular trap

#62
20070251074
2007-11-01

Method and apparatus to promote used oil filter recycling and biological control of their residual oil

#63
20070221585
2007-09-27

Collapsible Protective Cover for a Filter

#64
20070193929
2007-08-23

Housing for environmentally friendly filter cartridge

#65
20070163947
2007-07-19

Extension and locking assembly for dripless element and container therefore

#66
20070131608
2007-06-14

Oil filter

#67
20070125698
2007-06-07

Environmentally friendly dual lube venturi filter cartridge

#68
20070119766
2007-05-31

Pressure vessel and recyclable filter cartridge

#69
20070102343
2007-05-10

Environmentally friendly filter cartridge

#70
20060231479
2006-10-19

Extension and locking assembly for dripless element and container therefore

#71
20060186036
2006-08-24

Open-end flow entrance spin-on filter

#72
20060163128
2006-07-27

Filters

#73
20060151379
2006-07-13

Arrangement for containing filter contaminant; assembly; and, methods

#74
20060124516
2006-06-15

Environmentally friendly dual lube venturi filter cartridge

#75
20060113233
2006-06-01

Environmentally friendly acid neutralizing full flow cartridge

#76
20060096934
2006-05-11

Oil filter assembly

#77
20060096908
2006-05-11

Device for filtering fluids that are conveyed under a high presure

#78
20050274666
2005-12-15

Extension and locking assembly for dripless element, and container therefore

#79
20050211623
2005-09-29

Fatigue rated glass filled plastic filter assembly incorporating a coreless plastic filter element with integral seal

#80
20050178717
2005-08-18

Disposable, spin-on filter

#81
20050178716
2005-08-18

Filter assembly and filter element with integral seal

#82
20050150825
2005-07-14

Extension and locking assembly for dripless element, and container therefore

#83
20050126983
2005-06-16

Extension and locking assembly for dripless element, and container therefore

#84
20050077253
2005-04-14

Drain structure having drainpipe and fluid filter using the same

#85
20050067343
2005-03-31

Fluid containment apparatus, and method of using same

#86
20050000867
2005-01-06

Water filtering apparatus

#87
16022227
2020-03-17

Filter media cup with flow enhancing slits