ClassID:

28993

B01D27/146 - CPC Classification

Classification description:

Cartridge filters of the throw-away type having more than one filtering element connected in series

Sub-classes:
Recent Application in this class:
#1
20250229202
2025-07-17

MULTI-LAYER POROUS POLYMERIC MEMBRANE AND RELATED FILTERS AND METHODS

#2
20240100452
2024-03-28

FILTRATION TESTING DEVICES

#3
20240009598
2024-01-11

FILTER APPARATUS

#4
20230002245
2023-01-05

FILTER MEDIA, FILTER CARTRIDGE CONTAINING FILTER MEDIA, AND METHOD OF FILTERING WATER

#5
20220363569
2022-11-17

Water treatment dispensing apparatus

#6
20220186695
2022-06-16

Fuel system having pumping and filtration fuel module and flow housing for same

#7
20220176280
2022-06-09

WATER FILTER

#8
20210324821
2021-10-21

Fuel system having pumping and filtration fuel module and flow housing for same

#9
20200179834
2020-06-11

Bypass and full flow combination filter

#10
20190275449
2019-09-12

Disposable filter unit for a system allowing for purification and recycling of water or separation of water

#11
20180185774
2018-07-05

WATER PURIFIER

#12
20180133630
2018-05-17

BATH SHOWER WITH DISPOSABLE FILTRATION UNIT

#13
20180050926
2018-02-22

Multi-stage filter assembly

#14
20170312663
2017-11-02

Bypass filter method and device

#15
20170028320
2017-02-02

Serial flow channel type filter cartridge

#16
20160136545
2016-05-19

WATER PURIFICATION CARTRIDGE AND WATER PURIFIER

#17
20160025406
2016-01-28

Refrigerator

#18
20160023135
2016-01-28

Water separation filter

#19
20150284260
2015-10-08

COUNTERTOP FLUID DISPENSER

#20
20150122722
2015-05-07

Multistage filter

#21
20120125203
2012-05-24

Water purification and enhancement systems

#22
20120042677
2012-02-23

Refrigerator water filter assembly

#23
20110203982
2011-08-25

Filter device

#24
20050194309
2005-09-08

Liquid filter, especially an oil filter for an internal combustion engine

#25
17145676
2023-05-02

Multi-stage filter assembly