ClassID:

28954

B01D25/26 - CPC Classification

Classification description:

Filters formed by clamping together several filtering elements or parts of such elements; Cell-type filters Cell-type stack filters

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

FILTER ASSEMBLIES UTILIZING FULL CROSS-SECTION

#2
20250249382
2025-08-07

FILTER ELEMENT AND FILTER COMPRISING AT LEAST TWO FILTER ELEMENTS

#3
20250205619
2025-06-26

UNIFORM SPRAY-COATING, CUMULATIVELY-STACKING AND SQUEEZING SOLID-LIQUID SEPARATION SYSTEM

#4
20240226776
2024-07-11

FILTER

#5
20230219019
2023-07-13

FILTER PRESS ADAPTER

#6
20230018748
2023-01-19

FORMED FILTER MEDIA

#7
20220331715
2022-10-20

Filtering unit with improved cover assembly

#8
20220118386
2022-04-21

FILTER ASSEMBLIES UTILIZING FULL CROSS-SECTION

#9
20210354059
2021-11-18

FLUID FILTRATION APPARATUSES, SYSTEMS, AND METHODS

#10
20210268408
2021-09-02

Pleated filtration media, media packs, filter elements, and methods for filtering fluids

#11
20210053001
2021-02-25

Key system to ensure correct use of inserts

#12
20190209950
2019-07-11

Filtering unit with automatic backwashing

#13
20190176060
2019-06-13

FILTER ELEMENT AND FILTER UNIT

#14
20190054412
2019-02-21

Pleated filtration media having tapered flutes

#15
20190022593
2019-01-24

Fluid treatment assembly and method of use

#16
20180369722
2018-12-27

Filter element and filter comprising at least two filter elements

#17
20180353909
2018-12-13

Membrane stack and method for making the same

#18
20180214797
2018-08-02

Pleated filtration media, media packs, filter elements, and methods for filtering fluids

#19
20170266590
2017-09-21

Filtration module and method for producing same

#20
20170225103
2017-08-10

Filter element and filter unit

#21
20170189839
2017-07-06

Key system to ensure correct use of inserts

#22
20160001209
2016-01-07

Fluid filtering system

#23
20150375142
2015-12-31

Pleated filtration media, media packs, filter elements, and methods for filtering fluids

#24
20150352468
2015-12-10

Modular stacked disc filter apparatus

#25
20140291260
2014-10-02

Appliance for filtering liquids, in particular waste water, and method for filtering liquids

#26
20130199985
2013-08-08

Filter device

#27
20130161252
2013-06-27

Filter with automatic declogging

#28
20120312167
2012-12-13

Fluted filter media

#29
20120285610
2012-11-15

Process and materials for coiling z-filter media; and/or closing flutes of filter media; and, products

#30
20120223026
2012-09-06

Displacement filter apparatus

#31
20120118814
2012-05-17

Pleated filter element with tapering bend lines

#32
20110253618
2011-10-20

Circular filtering disc and filter device having the same

#33
20110226691
2011-09-22

FILTER DEVICE

#34
20110203697
2011-08-25

Fluid filter apparatus and methods

#35
20110198301
2011-08-18

Modular Filter Assembly

#36
20110186504
2011-08-04

Pleated filtration media having tapered flutes

#37
20110084034
2011-04-14

Displacement filter method

#38
20110036778
2011-02-17

Filter network

#39
20100320139
2010-12-23

Filter module

#40
20100219139
2010-09-02

FLUID TREATMENT ARRANGEMENTS WITH FLUID TREATMENT ELEMENTS AND METHODS FOR MAKING AND USING THEM

#41
20100206819
2010-08-19

FLUID TREATMENT ELEMENTS AND FLUID TREATMENT ARRANGEMENTS WITH FLUID TREATMENT ELEMENTS HAVING UNEVEN SURFACES AND METHODS FOR MAKING AND USING THEM

#42
20100206810
2010-08-19

Fluid treatment elements and fluid treatment arrangements with spaces between fluid treatment elements and methods for making and using them

#43
20100193437
2010-08-05

FLUID TREATMENT ELEMENTS AND FLUID TREATMENT ARRANGEMENTS WITH FLUID TREATMENT ELEMENTS HAVING DIFFERENT FLUID TREATEMENT CHARACTERISTICS AND METHODS FOR MAKING AND USING THEM

#44
20100187190
2010-07-29

Cross-flow filtration system

#45
20100187189
2010-07-29

Fluid treatment elements and fluid treatment arrangements with posts and/or bands between fluid treatment elements and methods for making and using them

#46
20100140177
2010-06-10

FLUID PROCESSING SYSTEM

#47
20100078379
2010-04-01

Pleated filtration media, media packs, filter elements, and methods for filtering fluids

#48
20100064644
2010-03-18

Laminate filter

#49
20100044299
2010-02-25

Method of preventing filter media cracking when compressing two or more filter media layers

#50
20090107926
2009-04-30

Fluid filter apparatus and methods

#51
20090008316
2009-01-08

Filter Plate for Use in a Filter Stack

#52
20080296238
2008-12-04

Modular filter assembly

#53
20080257838
2008-10-23

CARTRIDGE BASED FILTER ASSEMBLY FOR USE IN REMOVING SUB MICRONIC PARTICLES FROM FLUIDS

#54
20080257814
2008-10-23

Filtration Cartridge

#55
20080257813
2008-10-23

Cassette-style filtration apparatus

#56
20080257801
2008-10-23

Device For Filtering Solid Particles For Liquids Containing Such Particles

#57
20080216654
2008-09-11

Fluted filter media

#58
20080142449
2008-06-19

Method for Manufacturing a Module for Treating a Fluid

#59
20080041795
2008-02-21

Filter unit, filter device and filtration process for fluids

#60
20080000847
2008-01-03

Beverage bottling plant for filling bottles with a liquid beverage filling material, a container filling plant container filling machine, and a filter apparatus for filtering a liquid beverage

#61
20070144960
2007-06-28

Fluid filter

#62
20070144956
2007-06-28

Rotor for generating vortex water flow, and filtering apparatus employing the same

#63
20070062859
2007-03-22

Graded particle-size retention filter medium for fluid filtration unit with improved edge seal

#64
20070039296
2007-02-22

Process and materials for coiling z-filter media, and/or closing flutes of filter media; and, products

#65
20060272305
2006-12-07

Channel filter

#66
20060196820
2006-09-07

Displacement filter apparatus and method

#67
20060027508
2006-02-09

Method for manufacturing a module for treating a fluid

#68
20050279695
2005-12-22

Disposable integral filter unit

#69
20050279694
2005-12-22

Disposable integral filter unit

#70
20050252845
2005-11-17

Filter device with a segmented design

#71
20050167353
2005-08-04

Graded particle-size retention filter medium for fluid filtration unit with improved edge seal

#72
20050161392
2005-07-28

Displacement filter apparatus

#73
20050161390
2005-07-28

Laminated modular water filter

#74
20050121379
2005-06-09

Filter module

#75
20050092184
2005-05-05

Beverage bottling plant for filling bottles with a liquid beverage filling material, a container filling plant container filling machine, and a filter apparatus for filtering a liquid beverage

#76
20050061729
2005-03-24

Filter module and process for the production of a filled filter module

#77
20050061726
2005-03-24

Filtering apparatus of filter press type with filter carriage(s) accommodating filter module(s) comprising filter elements

#78
20050040096
2005-02-24

Laminated modular water filter

#79
20050035044
2005-02-17

Filter module and device for static filtration of fluids with such a module