ClassID:

35583

B03C3/155 - CPC Classification

Classification description:

Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect; Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity Filtration

Recent Application in this class:
#1
20260131270
2026-05-14

AIR FILTER FOR HIGH-EFFICIENCY PM2.5 CAPTURE

#2
20260070067
2026-03-12

ELECTRONICALLY ENHANCED AIR CLEANER WITH MULTIPLE FILTERS AND ENERGY GRIDS

#3
20250332598
2025-10-30

Air Filter and Air Filter Assembly

#4
20250276329
2025-09-04

ACTIVE FIELD POLARIZED MEDIA AIR CLEANING DEVICE

#5
20250235817
2025-07-24

HVAC System Air Filter

#6
20250196158
2025-06-19

AIR FILTER UNIT AND USE OF THE AIR FILTER UNIT IN A MOTOR VEHICLE

#7
20250177997
2025-06-05

ELECTRIC PRECIPITATOR, AND HOME APPLIANCE COMPRISING SAME

#8
20250033065
2025-01-30

AIR PURIFICATION FILTER DEVICE USING X-RAY IONIZER

#9
20250026182
2025-01-23

AIR FILTER AND VEHICLE AIR CONDITIONER EQUIPPED THEREWITH

#10
20250026181
2025-01-23

AIR FILTERING SYSTEM

#11
20250026180
2025-01-23

AIR FILTERING SYSTEM

#12
20250025891
2025-01-23

AIR FILTERING SYSTEM

#13
20250025888
2025-01-23

AIR FILTERING DEVICE AND VEHICLE AIR CONDITIONER EQUIPPED THEREWITH

#14
20240342335
2024-10-17

ELECTRO-IONIC DEVICES FOR IMPROVED PROTECTION FROM AIRBORNE BIOPATHOGENS

#15
20240307808
2024-09-19

Air Filter and Method for Manufacturing an Air Filter

#16
20240261799
2024-08-08

Air cleaner, air cleaner system, and air-conditioning apparatus

#17
20240253056
2024-08-01

CLEANING DEVICE FOR CLEANING A GAS

#18
20240246092
2024-07-25

Filter and manufacturing method thereof

#19
20240139674
2024-05-02

HVAC system air filter

#20
20240091790
2024-03-21

EXTERNALLY-MOUNTED AND DETACHABLE AIR PURIFICATION LAMP FITTING

#21
20240042252
2024-02-08

Personal protective equipment face coverings with inherently ionic material

#22
20230338605
2023-10-26

AN AIR PURIFICATION SYSTEM AND METHOD

#23
20230294028
2023-09-21

Apparatus and Method for Enhanced Filtration Utilizing Electric Fields and Filter Media with Conductive Polymeric Coatings

#24
20230278043
2023-09-07

DUST COLLECTION FILTER AND DUST COLLECTION FILTER MANUFACTURING METHOD

#25
20230277967
2023-09-07

AIR FILTER FOR HIGH-EFFICIENCY PM2.5 CAPTURE

#26
20230226556
2023-07-20

AIR PURIFICATION DEVICE AND AIR CONDITIONING DEVICE

#27
20230166271
2023-06-01

VENTILATION DEVICE

#28
20230151988
2023-05-18

FURNITURE INTENDED FOR AIR PURIFICATION

#29
20230102633
2023-03-30

Electro-ionic devices for improved protection from airborne biopathogens

#30
20230094157
2023-03-30

Electro-ionic devices for improved protection from airborne biopathogens

#31
20230069677
2023-03-02

System for tire particle capture

#32
20230067491
2023-03-02

Wireless rechargeable and portable anti-microbial respirator

#33
20230065731
2023-03-02

CLOSED LOOP SMOKE FILTRATION SYSTEM

#34
20230008480
2023-01-12

PACKED-BED FILTER FOR METAL FLUORIDE DUST TRAPPING IN LASER DISCHARGE CHAMBERS

#35
20220379319
2022-12-01

AIR PURIFYING FILTER

#36
20220339641
2022-10-27

Electrostatic filter unit for an air cleaning device and air cleaning device

#37
20220339577
2022-10-27

Filter unit for air cleaning device, and air cleaning device

#38
20220339314
2022-10-27

DISINFECTING AIR FILTRATIONS SYSTEM CONFIGURATION

#39
20220331815
2022-10-20

ELECTROSTATIC FILTER UNIT FOR AN AIR CLEANING DEVICE AND AIR CLEANING DEVICE

#40
20220275955
2022-09-01

AIR PURIFIER

#41
20220203379
2022-06-30

Filter and manufacturing method thereof

#42
20220168752
2022-06-02

Polymerized metal catalyst air cleaner

#43
20220168751
2022-06-02

Polymerized metal catalyst air cleaner

#44
20220106061
2022-04-07

Dust removal in deep space environment

#45
20220088612
2022-03-24

INTEGRATED DEEP PURIFICATION DEVICE FOR REMOVING SULFUR, NITRATE, DUST AND FLUORINE

#46
20220048045
2022-02-17

Electrostatic dust filter

#47
20220047988
2022-02-17

HVAC SYSTEM AIR FILTER

#48
20220023882
2022-01-27

Fine dust collecting filter device

#49
20220023878
2022-01-27

SYSTEM AND METHOD FOR REMOVING DUST FROM AIR

#50
20220023877
2022-01-27

AIR DUST REMOVAL SYSTEM AND METHOD

#51
20220016644
2022-01-20

AIR DUST REMOVAL SYSTEM AND METHOD

#52
20210339269
2021-11-04

PERSONAL PROTECTIVE APPARATUS WITH MESH SHIELD

#53
20210339263
2021-11-04

Integrated separator system and process for preconcentration and pretreatment of a material

#54
20210276020
2021-09-09

Method and an apparatus for cleaning the air

#55
20210063962
2021-03-04

Image forming apparatus with particle collector

#56
20200370768
2020-11-26

Air treatment device for a ventilation air inlet

#57
20200368758
2020-11-26

Polymerized metal catalyst air cleaner

#58
20200353479
2020-11-12

Conductive filter unit, conductive filter module including conductive filter unit, and fine dust removing system having conductive filter module

#59
20200290058
2020-09-17

Method and device for sorting fibers in suspension in an aerosol through the combination of electrostatic and centrifugal forces

#60
20200268927
2020-08-27

Air cleaning apparatus

#61
20200261923
2020-08-20

METHOD AND DEVICE FOR SORTING FIBERS IN SUSPENSION IN AN AEROSOL THROUGH THE COMBINATION OF ELECTROSTATIC AND GRAVITATIONAL FORCES

#62
20200206670
2020-07-02

Electrification device and electrical dust collecting apparatus including the same

#63
20200179945
2020-06-11

Electrical filter structure

#64
20200109869
2020-04-09

Electrical filter structure

#65
20200001306
2020-01-02

FILTER ASSEMBLY WITH CHARGE ELECTRODES

#66
20190388904
2019-12-26

AIR CLEAN FILTER, HYBRID AIR CLEAN FILTER AND AIR CLEANER

#67
20190336910
2019-11-07

HVAC system air filter

#68
20190283040
2019-09-19

Electrostatic filter corner latch

#69
20190264117
2019-08-29

Sorbent utilization improvement by selective ash recirculation from a particulate collector

#70
20190195098
2019-06-27

Electrostatic oil mist separator for internal combustion engine

#71
20190193089
2019-06-27

Charging apparatus and precipitator

#72
20190178510
2019-06-13

Electronic apparatus capable of air pollution reduction

#73
20190160475
2019-05-30

Electrostatic air filter

#74
20190126176
2019-05-02

Filter medium, method of manufacturing the same and uses thereof

#75
20190076853
2019-03-14

ELECTROSTATIC AIR CLEANER

#76
20190060912
2019-02-28

Gas dedusting filter apparatus and process

#77
20190039009
2019-02-07

Air cleaner

#78
20190022669
2019-01-24

AIR PURIFICATION MODILE

#79
20180345296
2018-12-06

AIR PURIFIER

#80
20180272357
2018-09-27

ION FILTRATION AIR CLEANER

#81
20180217046
2018-08-02

Particle sensor and sensing method

#82
20180200729
2018-07-19

Systems and methods for cleaning air

#83
20180169665
2018-06-21

Air cleaner for air conditioner

#84
20180169290
2018-06-21

Ion generator mounting device

#85
20180078950
2018-03-22

Dust collector and air conditioner

#86
20180055966
2018-03-01

Ion generator device

#87
20180051905
2018-02-22

Air conditioner

#88
20180021789
2018-01-25

Air cleaner

#89
20180015480
2018-01-18

Ion filtration air cleaner

#90
20180001327
2018-01-04

High voltage connection for sparse material

#91
20170306815
2017-10-26

Oil removal apparatus

#92
20170236677
2017-08-17

X-ray source and system comprising an x-ray source

#93
20170232823
2017-08-17

Air supply arrangement

#94
20170136270
2017-05-18

Respirator without breathing resistance

#95
20170120254
2017-05-04

Air-filter arrangement

#96
20170113229
2017-04-27

Air cleaning device and apparatus

#97
20170106218
2017-04-20

Portable electronic device with a smart air purifier

#98
20170086504
2017-03-30

Evapor Mask Delivery System

#99
20170072406
2017-03-16

Filtering medium and air purifier

#100
20170072354
2017-03-16

Apparatus to purify fresh air using biodegradable filter

#101
20170036218
2017-02-09

SELF-SUPPORT ELECTROSTATIC FILTER AND A FILTERING DEVICE THEREOF

#102
20170028407
2017-02-02

AIR TREATMENT DEVICE

#103
20170028096
2017-02-02

Ion generator device

#104
20170021363
2017-01-26

Electronic air cleaners and associated systems and methods

#105
20170000921
2017-01-05

Ion generator mounting device

#106
20160332170
2016-11-17

Air cleaning device

#107
20160303499
2016-10-20

Corrugated filtration media for polarizing air cleaner

#108
20160279562
2016-09-29

HVAC system air filter

#109
20160236131
2016-08-18

Dust collector and projection apparatus with same

#110
20160209057
2016-07-21

Dust containment unit manifold

#111
20160175850
2016-06-23

Electric field enhanced small particle filter

#112
20160167059
2016-06-16

WALL PLUG-IN ION GENERATOR DEVICE

#113
20160160716
2016-06-09

Oil separator

#114
20160158765
2016-06-09

Active field polarized media air cleaner

#115
20160144379
2016-05-26

High voltage connection for sparse material

#116
20160102589
2016-04-14

Vehicle air purifying apparatus for simultaneously reducing harmful gas and particles

#117
20160097352
2016-04-07

Oil removal apparatus

#118
20160051991
2016-02-25

Active field polarized media air cleaner

#119
20160030949
2016-02-04

Systems and methods for cleaning air

#120
20150352479
2015-12-10

Air cleaner

#121
20150343454
2015-12-03

CHARGED FILTRATION SYSTEM

#122
20150323217
2015-11-12

Electronic air cleaners and associated systems and methods

#123
20150290657
2015-10-15

Ion filtration air cleaner

#124
20150266031
2015-09-24

Combined ionic air filter and humidifier apparatus

#125
20150246595
2015-09-03

Air filtration system and method for a HVAC unit in a transport compartment

#126
20150196925
2015-07-16

Air conditioning apparatus

#127
20140377136
2014-12-25

Filtering assembly and filtering method for air and gaseous fluids in general

#128
20140216260
2014-08-07

Electrode support for electrically-enhanced air filtration system

#129
20140190353
2014-07-10

Filter media with improved conductivity

#130
20140102295
2014-04-17

Current monitoring in electrically enhanced air filtration system

#131
20140096680
2014-04-10

Passively energized field wire for electrically enhanced air filtration system

#132
20140076163
2014-03-20

System for filtering airborne particles

#133
20130180222
2013-07-18

Dust removal device

#134
20130085706
2013-04-04

System and method for counting aerosol particles in atmosphere with respect to each particle size by appropriately setting ratio of flow rate of sample gas and sheath gas in DMA

#135
20130071298
2013-03-21

APPARATUS AND METHOD FOR CAPTURE AND INACTIVATION OF MICROBES AND VIRUSES

#136
20130061749
2013-03-14

GAMING MACHINE WITH IONIZED FILTRATION SYSTEM

#137
20130060509
2013-03-07

System and method for detecting aerosol particles in a atmosphere and counting aerosol particles with respect to each particle size

#138
20130042757
2013-02-21

FILTERING METHOD FOR A GEAR TRANSMISSION

#139
20120282157
2012-11-08

Air purification

#140
20120207647
2012-08-16

Device for indoor air purification and sterilization

#141
20120198995
2012-08-09

Clean corona gas ionization

#142
20120118150
2012-05-17

Air treatment system and method

#143
20120103184
2012-05-03

ELECTROSTATIC FILTRATION SYSTEM

#144
20120097036
2012-04-26

FILTER AND HOME APPLIANCE COMPRISING THE SAME

#145
20120085234
2012-04-12

Particle guide collector system and associated method

#146
20120067213
2012-03-22

Method and apparatus for air pollution control

#147
20120037001
2012-02-16

Clean corona gas ionization for static charge neutralization

#148
20110303086
2011-12-15

Air pre-treatment device

#149
20110296989
2011-12-08

Control of grounded surface geometry in electrostatically enhanced fabric filters

#150
20110277637
2011-11-17

Electrostatic air filter

#151
20110274588
2011-11-10

AIR PURIFICATION DEVICES

#152
20110265312
2011-11-03

Filter media with improved conductivity

#153
20110219954
2011-09-15

Electrically enhanced air filtration system using rear fiber charging

#154
20110209621
2011-09-01

Device for inactivating and finely filtering viruses and microorganisms in a flow of air

#155
20110203974
2011-08-25

Device and method for separating solid particles

#156
20110197768
2011-08-18

Dust collector

#157
20110195002
2011-08-11

Advanced particulate matter control apparatus and methods

#158
20110185904
2011-08-04

Reel-to-reel bioforensic aerosol collection and storage system

#159
20110171090
2011-07-14

Method and device for cleaning air

#160
20110126712
2011-06-02

Separating contaminants from gas ions in corona discharge ionizing bars

#161
20110111691
2011-05-12

VENTILATOR

#162
20110100221
2011-05-05

Air purifier

#163
20110089038
2011-04-21

Filter element with particle-trapping crevice

#164
20110061528
2011-03-17

Power plant emissions control using integrated organic rankine cycle

#165
20110016663
2011-01-27

Filter

#166
20110016662
2011-01-27

Filter

#167
20110006216
2011-01-13

Air filtration and purification system

#168
20100319699
2010-12-23

Filter

#169
20100282083
2010-11-11

Disinfecting air filter

#170
20100269692
2010-10-28

Clean corona gas ionization for static charge neutralization

#171
20100263530
2010-10-21

Air conditioning system with modular electrically stimulated air filter apparatus

#172
20100251894
2010-10-07

Air handling device

#173
20100251889
2010-10-07

Charging device, air handling device, method for charging, and method for handling air

#174
20100202945
2010-08-12

Method and apparatus for the enhanced removal of aerosols and vapor phase contaminants from a gas stream

#175
20100107870
2010-05-06

Metal fluoride trap

#176
20100077924
2010-04-01

Air purifier

#177
20100024653
2010-02-04

Conducting air filter and filter assembly

#178
20100024639
2010-02-04

Methods for operating a filtration system

#179
20100011959
2010-01-21

Electrostatic particle filter

#180
20090320678
2009-12-31

Sorbent Filter for the Removal of Vapor Phase Contaminants

#181
20090274592
2009-11-05

PLASMA-BASED AIR PURIFICATION DEVICE INCLUDING CARBON PRE-FILTER AND/OR SELF-CLEANING ELECTRODES

#182
20090252645
2009-10-08

METHOD FOR FILTERING ODORS OUT OF AN AIR FLOW, AND FILTERING DEVICE EQUIPPED WITH AN ODOR FILTER

#183
20090202397
2009-08-13

SYSTEM AND METHOD FOR DELIVERING AND CONDITIONING AIR TO REDUCE VOLATILE ORGANIC COMPOUNDS AND OZONE

#184
20090158926
2009-06-25

Systems and methods for removal of particulate matter in a filtration system

#185
20090084265
2009-04-02

Apparatus for purifying air, in particular for ventilation and air-conditioning systems

#186
20090025559
2009-01-29

Air conditioning system with modular electrically stimulated air filter apparatus

#187
20090025402
2009-01-29

Air conditioning system with modular electrically stimulated air filter apparatus

#188
20080236397
2008-10-02

Electronic Enclosure Filter for Very Small Spaces

#189
20080202335
2008-08-28

Ionization detector for electrically enhanced air filtration systems

#190
20080190772
2008-08-14

APPARATUS AND METHOD FOR REMOVING PARTICLES FROM AIR

#191
20080170971
2008-07-17

Air purification devices

#192
20080156186
2008-07-03

Dual-filter electrically enhanced air-filtration apparatus and method

#193
20080115704
2008-05-22

Method and apparatus for the enhanced removal of aerosols and vapor phase contaminants from a gas stream

#194
20080105121
2008-05-08

Sorbent filter for the removal of vapor phase contaminants

#195
20080105120
2008-05-08

Method and apparatus for the enhanced removal of aerosols from a gas stream

#196
20080086994
2008-04-17

Mobile air decontamination and purification unit

#197
20080050288
2008-02-28

AIR PURIFICATION MEMBER, AIR PURIFICATION UNIT AND AIR CONDITIONING APPARATUS

#198
20080047433
2008-02-28

Air purifier

#199
20080034967
2008-02-14

Filter Device for Administration of Stored Gases

#200
20070295213
2007-12-27

AIR PURIFICATION MEMBER, AIR PURIFICATION UNIT AND AIR CONDITIONING APPARATUS

#201
20070266855
2007-11-22

Airplane air purifier

#202
20070240571
2007-10-18

Device for Cleaning of an Air Stream

#203
20070157814
2007-07-12

Cyclone dust-separating apparatus with discharge electrodes

#204
20070140932
2007-06-21

Air purification device

#205
20070137486
2007-06-21

Electrostatic filter

#206
20070122320
2007-05-31

Air purification system and method

#207
20070116616
2007-05-24

Method and system for removing mercury from combustion gas

#208
20070095211
2007-05-03

Air cleaner with electrostatic flocked piles

#209
20070068384
2007-03-29

Utilization of high permeability filter fabrics to enhance fabric filter performance and related method

#210
20070039462
2007-02-22

Air filtration system control

#211
20070034082
2007-02-15

Air purifier

#212
20070028767
2007-02-08

Filter media with improved conductivity

#213
20070028603
2007-02-08

Exhaust gas-purifying device

#214
20070000236
2007-01-04

Exhaust gas processing method and exhaust gas processing system

#215
20060272504
2006-12-07

Conducting gas purification filter and filter assembly

#216
20060180023
2006-08-17

Electrically enhanced air filtration with improved efficacy

#217
20060174768
2006-08-10

Apparatus and method for the removal of particulate matter in a filtration system

#218
20060162564
2006-07-27

Air cleaner with improved airflow

#219
20060150818
2006-07-13

Air cleaning member, air cleaning unit and air conditioner

#220
20060150816
2006-07-13

Low pressure drop deep electrically enhanced filter

#221
20060150810
2006-07-13

Gas cleaning devices

#222
20060137527
2006-06-29

Electronic air filter with resistive screen and electronic modular assembly

#223
20060123986
2006-06-15

Methods and apparatus for air pollution control

#224
20060021503
2006-02-02

Electrostatic precipitator particulate trap with impingement filtering element

#225
20060018805
2006-01-26

Photo-electronic air purifying disinfector

#226
20060005708
2006-01-12

Photo-electronic air purifying and disinfecting system

#227
20060005707
2006-01-12

Photo-electronic air conditioning, dehumidifying, purifying and disinfecting system

#228
20060005706
2006-01-12

Electro-optical air sterilizer with ionizer

#229
20050287051
2005-12-29

Photo-electronic air purifying and conditioning system

#230
20050229564
2005-10-20

Exhaust gas treatment apparatus

#231
20050223899
2005-10-13

Electrostatic filter construction

#232
20050195523
2005-09-08

Disk device with charging filter outside pivotal range of head actuator and having projection plane overlapping the disk

#233
20050142047
2005-06-30

Hybrid-type air purifier for an automobile

#234
20050109204
2005-05-26

Electrically enhanced air filtration with improved efficacy

#235
20050081719
2005-04-21

Air filtering system

#236
20050045037
2005-03-03

Portable air filtration system

#237
16991503
2021-06-22

Electrostatic air filter used to destroy pathogens and viruses with infrared heat

#238
15178533
2018-12-18

Plenum for air purification system