ClassID:

30110

B01D2201/31 - CPC Classification

Classification description:

Details relating to filtering apparatus Other construction details

Sub-classes:
Recent Application in this class:
#1
20260124560
2026-05-07

VARIABLE CRIMPED EXPANDED METAL FILTERS, BI-DIRECTIONALLY EXPANDED METAL FILTERS, COMBINATIONS THEREOF AND EXPANDING METHODS FOR MANUFACTURING EXPANDED SHEET METAL

#2
20250345730
2025-11-13

FILTER DEVICE HAVING A FILTER ELEMENT

#3
20250303324
2025-10-02

GAS-LIQUID SEPARATOR WITH TWO-STAGE IMPACTION MEDIA

#4
20250281863
2025-09-11

FILTER ASSEMBLY AND AIR CLEANER INCLUDING THE SAME

#5
20250269307
2025-08-28

VOLUMETRIC MEDIA AND USES THEREOF

#6
20250121307
2025-04-17

WATER PURIFIER

#7
20250108318
2025-04-03

DATA CENTER COOLING UNIT FILTER DEVICE

#8
20250065250
2025-02-27

FLAT FILTER MEDIA

#9
20240252960
2024-08-01

Filter element mounting structure

#10
20240207775
2024-06-27

VOC Absorption-Desorption Apparatus for Volatile Organic Compound Condensing System

#11
20240207763
2024-06-27

FLUID FILTER RETENTION MECHANISM

#12
20240123381
2024-04-18

REINFORCED TOP COVER STRUCTURE FOR A CHEMICAL FILTER

#13
20240109015
2024-04-04

FILTER ELEMENT AND FILTER SYSTEM

#14
20240077173
2024-03-07

COLLAPSIBLE FLUID COLLECTION CONTAINER

#15
20240009605
2024-01-11

DOUBLE FILTER APPARATUS INCLUDING GAS SUPPLY TUBE AND SYSTEM INCLUDING THE SAME

#16
20240009604
2024-01-11

DOUBLE FILTER STRUCTURE

#17
20240009603
2024-01-11

LIQUID FILTER AND FILTER ELEMENT

#18
20230173420
2023-06-08

Pump filter with predetermined swirl

#19
20230119622
2023-04-20

FILTER DEVICE HAVING A FILTER ELEMENT

#20
20220296449
2022-09-22

TREATMENT DEVICE ASSEMBLY INCLUDING HEADREST ASSEMBLY WITH INTEGRATED FILTER ASSEMBLY

#21
20220176279
2022-06-09

AIR CONDITIONER CONDENSATE FILTRATION DEVICE

#22
20210381642
2021-12-09

Collapsible fluid collection container

#23
20210140096
2021-05-13

GRAPHENE MATERIAL COATING AND PREPARATION METHOD THEREOF, AIR FILTRATION DEVICE AND SYSTEM

#24
20210121801
2021-04-29

Separator

#25
20210039022
2021-02-11

Filter for a filtration device

#26
20200376421
2020-12-03

Filter element sensor module having processing and wireless communication capabilities

#27
20200368657
2020-11-26

FILTRATION DEVICE COMPRISING ATOMIC QUANTUM CLUSTERS

#28
20200261832
2020-08-20

Water purifier structure

#29
20200215468
2020-07-09

Filtration system and method of use

#30
20200182207
2020-06-11

SLEEVE FOR A FILTER ASSEMBLY

#31
20200147533
2020-05-14

USE OF CARBOXYLIC ACID POLYMER AS VAPOR ALCOHOL REMOVING MATERIAL AND FILTER MESH STRUCTURE FOR REMOVING VAPOR ALCOHOL

#32
20200139280
2020-05-07

Water purifying filter

#33
20190300446
2019-10-03

Honeycomb structure

#34
20190247771
2019-08-15

Liquid cleaning element, liquid cleaning system, and method for producing a liquid cleaning element

#35
20190168141
2019-06-06

Filter housing that accepts both single open end o-ring and double open end filter elements

#36
20190111367
2019-04-18

FILTER INSERT AND FILTRATION ARRANGEMENT HAVING A FILTER INSERT

#37
20190060803
2019-02-28

Purification device

#38
20180111067
2018-04-26

Filter cap with insert

#39
20180015400
2018-01-18

Water purifying filter

#40
20180015399
2018-01-18

Water purifying filter

#41
20170312667
2017-11-02

Filtering Device for Erosion Control and Reducing Contamination

#42
20160305144
2016-10-20

Pool cleaner with a protracted filter

#43
20120228210
2012-09-13

Filter structure

#44
20100252495
2010-10-07

Filter structure

#45
20090230049
2009-09-17

Oil filter device

#46
14082111
2015-04-07

Tank access hatch and cleaning method