B01D46/22 - CPC Classification Index

ClassID:

29520 ⎘

B01D46/22 - CPC Classification

Classification description:

Filters or filtering processes specially modified for separating dispersed particles from gases or vapours; Particle separators, e.g. dust precipitators, using filtering belts the belts travelling during filtering

Recent Application in this class:

20250325932

2025-10-23

PREFILTRATION STRUCTURE FOR FILTER ELEMENT AND AIR PURIFIER

20240367083

2024-11-07

Exhaust Gas Emission Circulation Filtering Apparatus for Air Pollution Prevention

20230311050

2023-10-05

DUAL FILTRATION AND AUTO CLEANSING MECHANISM

20210205742

2021-07-08

Automatic clean air filter for air conditioner unit

20200338491

2020-10-29

Air filter device of industrial machine

20170216743

2017-08-03

FILTRATION DEVICE, FILTRATION METHOD AND FILTRATION FILTER

20150053081

2015-02-26

Direct replacement air filter with automatic pleated filter media advance

20140373719

2014-12-25

Air filtration apparatus

20140305086

2014-10-16

Replacement filter with cartridge and automatic filter media advance and wireless communications

#10

20140260983

2014-09-18

Gas filtration system

#11

20140083295

2014-03-27

Filter assembly with dynamic filter media

#12

20130291727

2013-11-07

Hot gas filtration system

#13

20120317938

2012-12-20

Replacement cartridge filter with pleated filter media, automatic filter media advance and wireless communications

#14

20120255447

2012-10-11

PROTECTIVE FILTER

#15

20120055339

2012-03-08

Propeller driven self-renewing air filter

#16

20110061537

2011-03-17

Direct replacement air handler filter with automatic filter media advance

#17

20110030323

2011-02-10

DISCHARGING AIR FILTER

#18

20100035103

2010-02-11

Hydrogen extraction

#19

20080276806

2008-11-13

WELDING SMOG DISPOSING MACHINE

#20

20080041025

2008-02-21

HVAC system with moving filter

#21

20070234688

2007-10-11

Air filter for electric welding

#22

20060137318

2006-06-29

Filtration media for filtering particulate material from gas streams

#23

20060137317

2006-06-29

Filtration media for filtering particulate material from gas streams

#24

20060070527

2006-04-06

Autonomic method to filter air in a digital hardware system

#25

20050150382

2005-07-14

Filter system with automatic media refresh

#26

20050097869

2005-05-12

Waste gas purification structure with circulated filtering and coating

#27

20050081495

2005-04-21

Filter device and cleaning method therefor