ClassID:

29573

B01D46/448 - CPC Classification

Classification description:

Filters or filtering processes specially modified for separating dispersed particles from gases or vapours; Auxiliary equipment or operation thereof controlling filtration by temperature measuring

Recent Application in this class:
#1
20260049728
2026-02-19

POSITIVE PRESSURE CONTROL METHOD OF INDOOR AIR CLEANING NETWORK MECHANISM SYSTEM

#2
20250381508
2025-12-18

AIR FILTER WITH INTEGRATED SENSORICS

#3
20250360447
2025-11-27

FIBERBED MIST COLLECTOR WITH IMPROVED FILTERING

#4
20250316503
2025-10-09

FILTER APPARATUS FOR SUBSTRATE TREATMENT APPARATUS AND CLEAN AIR SUPPLY METHOD

#5
20250303337
2025-10-02

MOBILE PURIFICATION DEVICE HAVING HEATED FILTER FOR KILLING BIOLOGICAL SPECIES, INCLUDING COVID-19

#6
20250281867
2025-09-11

PURIFICATION DEVICE HAVING HEATED FILTER FOR KILLING BIOLOGICAL SPECIES, INCLUDING COVID-19

#7
20250270950
2025-08-28

METHOD AND SYSTEM FOR DETECTING AND QUANTIFYING REGENERATION EVENTS IN A DIESEL PARTICULATE FILTER

#8
20250256233
2025-08-14

BAG FILTER AND OPERATION METHOD TO MINIMIZE CLOGGING DUE TO MOISTURE

#9
20250198641
2025-06-19

INDOOR AIR CLEANING SYSTEM

#10
20250155142
2025-05-15

STRUCTURE SYSTEM HAVING CHILLER AND MULTIPLE CENTRAL WATER-COOLED AIR QUALITY REGULATORS CONNECTED TO THE CHILLER

#11
20250027004
2025-01-23

NATURAL GAS SYSTEM FOR PROCESSING AND DELIVERY

#12
20240399280
2024-12-05

MONITORING DEVICES FOR AIR FILTRATION SYSTEMS

#13
20240382889
2024-11-21

AIR PURIFYING DEVICE FOR PURIFYING AIR AND METHOD FOR OPERATING AN AIR PURIFYING DEVICE

#14
20240353901
2024-10-24

COMPUTER DEVICE, COMPUTER SYSTEM AND METHOD FOR OPERATING COMPUTER DEVICE

#15
20240318373
2024-09-26

EXHAUST FILTER ASSEMBLY FOR A CLOTHES DRYER

#16
20240254905
2024-08-01

EXHAUST SYSTEM, CONTROLLER AND METHOD FOR AN INTERNAL COMBUSTION ENGINE

#17
20240159426
2024-05-16

AIR CONDITIONING SYSTEM AND AIR CONDITIONING METHOD USING THE SAME

#18
20240087933
2024-03-14

WAFER TRANSPORTING METHOD

#19
20240042368
2024-02-08

Self-cleaning air filter system

#20
20240035408
2024-02-01

Method for controlling an internal combustion engine including at least one exhaust-gas aftertreatment component having an electric heating element

#21
20230392825
2023-12-07

AIR INTAKE FILTER ASSEMBLIES WITH A MULTI-LEVEL FINE FILTER FOR HEATING, VENTILATION, AND/OR AIR CONDITIONING (HVAC) SYSTEMS

#22
20230356133
2023-11-09

Mobile Purification Device Having Heated Filter for Killing Biological Species, Including COVID-19

#23
20230304684
2023-09-28

FRESH AIR VENTILATION DEVICE FOR AIR POLLUTION PREVENTION

#24
20230219029
2023-07-13

FILTRATION SYSTEMS WITH SELECTIVE PULSE CONTROL

#25
20230191308
2023-06-22

Self-cleaning air filter system

#26
20230173425
2023-06-08

SYSTEM AND METHOD FOR MAINTAINING, MONITORING AND/OR IMPROVING AIR QUALITY AND PURITY IN AT LEAST ONE ROOM OR ENVIRONMENT

#27
20230166209
2023-06-01

AIR PURIFICATION APPARATUS

#28
20230149845
2023-05-18

Air cleaner

#29
20230120524
2023-04-20

Combination Humidifier / Dehumidifier with Common Water Containment and Outdoor Air Intake

#30
20230101511
2023-03-30

Pollution monitoring system and method thereof

#31
20230071376
2023-03-09

Air quality monitoring and control system

#32
20220381173
2022-12-01

Method of detecting a need for regeneration of an exhaust particulate filter, and exhaust system

#33
20220379254
2022-12-01

Building's airflow and a clothes dryer's exhaust filtering and recycling system comprising an emergency shutdown element, condensate separation, and multiple airflow configurations within a housing

#34
20220373197
2022-11-24

AIR-CONDITIONING SYSTEM

#35
20220370946
2022-11-24

AIR POLLUTION PREVENTION DEVICE FOR BABY CARRIAGE

#36
20220307715
2022-09-29

SYSTEM AND METHOD FOR THE MITIGATION OF RISK OF EXPOSURE TO CONTAMINANTS AND PROVIDING INFORMATION THEREOF

#37
20220304361
2022-09-29

SYSTEM FOR ROASTING COFFEE BEANS

#38
20220266187
2022-08-25

HEPA air filtration with an air handling device

#39
20220266185
2022-08-25

Housing for receiving contaminated airflow from a clothes dryer or from a building's interior, constructed for filtering and recycling thru an interior piping system or disposing out to a building's exterior and comprising a safety mechanical shutdown system of the clothes dryer

#40
20220235485
2022-07-28

Apparatus of oxidation-combusting an ingot grower and method thereof

#41
20220228312
2022-07-21

Lint filter clogging detection in a dryer appliance using compressor temperature and referigerant mass flow

#42
20220219107
2022-07-14

GAS EVACUATION DEVICE

#43
20220213822
2022-07-07

Systems and methods for dynamic control of filtration efficiency and fuel economy

#44
20220205819
2022-06-30

AIR SEPARATION CONTROL SYSTEM AND CONTROL METHOD

#45
20220203288
2022-06-30

Systems and methods for optimization of occupied space comfort, air quality, and energy consumption

#46
20220139746
2022-05-05

Air processing system for semiconductor container

#47
20220136717
2022-05-05

Systems and methods for correlating indoor air quality data and trends to pathogen remediation

#48
20220065474
2022-03-03

ENVIRONMENT MANAGEMENT SYSTEM

#49
20220054968
2022-02-24

Uniformly expandable air filter

#50
20220040622
2022-02-10

Thermal desorber assembly for high-volume sampling filters

#51
20220036663
2022-02-03

Filtration systems with multitiered data exchange capabilities

#52
20220034528
2022-02-03

Air Purifying Vent System

#53
20220034245
2022-02-03

Systems and methods for dynamic control of filtration efficiency and fuel economy

#54
20210394108
2021-12-23

Filter arrangement and method

#55
20210387127
2021-12-16

Monitoring devices for air filtration systems

#56
20210381705
2021-12-09

Combination humidifier / dehumidifier with common water containment and outdoor air intake

#57
20210370217
2021-12-02

System and method for maintaining, monitoring and/or improving air quality and purity in at least one room or environment

#58
20210353818
2021-11-18

SYSTEM AND METHOD FOR PROTECTING A WORKSPACE FROM AIRBORNE CONTAMINANTS

#59
20210339184
2021-11-04

Mobile Purification Device Having Heated Filter for Killing Biological Species, Including COVID-19

#60
20210339183
2021-11-04

Purification Device Having Heated Filter for Killing Biological Species, Including COVID-19

#61
20210275963
2021-09-09

Self-contained nitrogen generator

#62
20210252444
2021-08-19

Mobile filter system and method

#63
20210231331
2021-07-29

Computerized HVAC filter evaluation system

#64
20210172631
2021-06-10

Outdoor air cleaning system

#65
20210154614
2021-05-27

AIR PURIFICATION DEVICE AND INTELLIGENT MANAGEMENT SYSTEM

#66
20210060475
2021-03-04

Air quality monitoring and control system

#67
20210033965
2021-02-04

Apparatus for storing mask

#68
20210017892
2021-01-21

Gasoline particulate filter brick detection techniques

#69
20200378293
2020-12-03

IMPROVED DIESEL PARTICULATE FILTER LINEARITY WITH THIN ASH LAYER

#70
20200362744
2020-11-19

Predictive methods for emissions control systems performance

#71
20200346157
2020-11-05

SYSTEM (IN.AIRBOX) FOR PROVIDING A USER WITH HEALTHY AIR

#72
20200340414
2020-10-29

METHOD FOR THE REGENERATION OF A SOOT PARTICLE FILTER

#73
20200309003
2020-10-01

Method for regenerating exhaust gas filter and exhaust gas filter impregnation system

#74
20200256585
2020-08-13

Air intake filter assemblies with a multi-level fine filter for heating, ventilation, and/or air conditioning (HVAC) systems

#75
20200254375
2020-08-13

Air intake filter assemblies with actuatable filter slats for heating, ventilation, and/or air conditioning (HVAC) systems

#76
20200248654
2020-08-06

SYSTEM AND METHOD FOR VARIATION OF THE OPENING SPEED OF A FUEL TANK VALVE

#77
20200217235
2020-07-09

Exhaust purification system of internal combustion engine

#78
20200188832
2020-06-18

HEPA air filtration with an air handling system

#79
20200179859
2020-06-11

METHOD AND APPARATUS FOR INTEGRATING CHEMICAL AND ENVIRONMENTAL SENSORS INTO AN AIR PURIFICATION FILTER THROUGH A REUSABLE SENSOR POST

#80
20200139956
2020-05-07

HYBRID VEHICLE

#81
20200139166
2020-05-07

FIRE SAFETY DEVICE

#82
20200116092
2020-04-16

Control device of internal combustion engine, internal combustion engine, and vehicle

#83
20200109831
2020-04-09

Solar chimney street lighting pole

#84
20200088119
2020-03-19

Systems and methods for particulate filter load estimation

#85
20200084983
2020-03-19

Automated Hydroponic Greenhouses

#86
20200078720
2020-03-12

LOW PARTICULATE MATTER EMISSION FABRIC FILTER

#87
20200072112
2020-03-05

Predictive methods for emissions control systems performance

#88
20200054979
2020-02-20

Air filtration monitoring based on thermoelectric devices

#89
20200049367
2020-02-13

Air blowing device and indoor air conveying system using same

#90
20200023301
2020-01-23

Thermally conductive particulate sensor

#91
20190390588
2019-12-26

Exhaust treatment device for diesel engine

#92
20190366256
2019-12-05

Method for controlling filtering efficiency of a filter for an exhaust aftertreatment system

#93
20190262750
2019-08-29

FILTER MEASUREMENTS

#94
20190232994
2019-08-01

Stroller cover

#95
20190201830
2019-07-04

Membrane method processing system and process for high-concentration salt-containing organic waste liquid incineration exhaust gas

#96
20190168152
2019-06-06

High-temperature dust removal and filtering apparatus, high-temperature dust removal and filtering system, and continuous dust removal and filtering method

#97
20190133070
2019-05-09

Environmental control apparatus for animal housing facilities

#98
20190118128
2019-04-25

AIR PURIFICATION APPARATUS FOR INDOOR WINDOW VENT

#99
20190112981
2019-04-18

Control method for controlling an air intake system which supplies air to an engine of a vehicle

#100
20190078524
2019-03-14

Systems and methods for particulate filter load estimation

#101
20190072050
2019-03-07

Method, system and computer product for evaluating the quantity of particulate accumulated within a particulate filter of a Diesel engine

#102
20190067054
2019-02-28

Apparatus for transferring substrate and apparatus for processing substrate including the same

#103
20190056138
2019-02-21

System and method for managing air quality, and analysis server

#104
20190035658
2019-01-31

AIR PURIFYING DEVICE FOR FRONT OPENING UNIFIED POD AND AIR PURIFYING SYSTEM

#105
20190015768
2019-01-17

Clip-on monitor for detecting clogged air-filters

#106
20190001250
2019-01-03

Air quality monitoring and control system

#107
20180370335
2018-12-27

HVAC system with odor absorbent regeneration

#108
20180345187
2018-12-06

Spring biased filter element

#109
20180274350
2018-09-27

Natural gas apparatus and method for in-situ processing

#110
20180264391
2018-09-20

System and method for maintaining, monitoring and/or improving air quality and purity in at least one room or environment

#111
20180258820
2018-09-13

Microwave irradiation device, exhaust purification apparatus, automobile and management system

#112
20180229173
2018-08-16

Filter clogging monitoring systems and methods

#113
20180179942
2018-06-28

Vehicle and control method for vehicle

#114
20180073386
2018-03-15

SYSTEM AND METHOD FOR CONDITION-BASED MONITORING OF TURBINE FILTERS

#115
20180056223
2018-03-01

Method for determining a degree of loading of a filter

#116
20170320005
2017-11-09

Filter assembly cover with integrated sensors

#117
20170254188
2017-09-07

Natural gas apparatus and method for in-situ processing

#118
20170241656
2017-08-24

POWERED WINDOW AIR FILTER

#119
20170216756
2017-08-03

Uniformly expandable air filter

#120
20170211451
2017-07-27

Exhaust gas control system for internal combustion engine

#121
20170189844
2017-07-06

Smart air filter and systems and methods for predicting failure of an air filter

#122
20170145893
2017-05-25

Ammonia adsorption amount estimation apparatus, ammonia adsorption amount estimation method, and exhaust gas purification system for internal combustion engine

#123
20170125270
2017-05-04

Apparatus for transferring substrate and apparatus for processing substrate including the same

#124
20170105383
2017-04-20

Environment cleaning system for an animal breeding house

#125
20170087500
2017-03-30

Localized ventilation systems and methods

#126
20170087499
2017-03-30

Filter customization systems and methods

#127
20170080373
2017-03-23

AIR PURIFICATION SYSTEM

#128
20170066661
2017-03-09

System for reducing produced water disposal volumes utilizing waste heat

#129
20160354718
2016-12-08

Method and apparatus for integrating chemical and environmental sensors into an air purification filter through a reusable sensor post

#130
20160214051
2016-07-28

Rescue terminal and system

#131
20160206988
2016-07-21

General ventilation system with automatic cleaning cycle

#132
20160121254
2016-05-05

AIR FILTRATION SYSTEM

#133
20160101463
2016-04-14

Manufacturing in microgravity and varying external force environments

#134
20160009407
2016-01-14

Nitrogen enriched air supply system and aircraft

#135
20150373875
2015-12-24

Electronic apparatus and filter unit

#136
20150306533
2015-10-29

Air purifier with intelligent sensors and airflow

#137
20150300677
2015-10-22

Air purification apparatus

#138
20150110911
2015-04-23

Nanoparticle filtering environmental control units

#139
20150075373
2015-03-19

Room air purifier with pressurization relief

#140
20130327335
2013-12-12

Air cleaning apparatus and method for predicting breakthrough time for the same

#141
20130269427
2013-10-17

Diesel particulate filter system

#142
20130146052
2013-06-13

Method and apparatus for integrating chemical and environmental sensors into an air purification filter through a reusable sensor port

#143
20130084217
2013-04-04

Diesel Particulate Filter system

#144
20130055793
2013-03-07

FILTER CLOGGING DETECTION APPARATUS

#145
20130014494
2013-01-17

Filter assembly and exhaust gas reducing device including same

#146
20120282159
2012-11-08

Exhaust gas purification apparatus and method for engine and filter regeneration system of the exhaust gas purification apparatus

#147
20120166110
2012-06-28

METHOD AND SYSTEM FOR COMPONENT RESISTANCE TO FLOW

#148
20110289917
2011-12-01

INTERNAL COMBUSTION ENGINE EXHAUST PURIFYING DEVICE AND EXHAUST PURIFYING METHOD

#149
20110277628
2011-11-17

Method and associated kit utilizing international organization for standardization container filter house

#150
20110265652
2011-11-03

Dust removal method using baghouse filters and dust removal apparatus therefor

#151
20110265462
2011-11-03

Diesel engine

#152
20110232364
2011-09-29

Method of diagnosing regeneration failure of exhaust emission control device

#153
20110036782
2011-02-17

FILTER WITH MEMORY, COMMUNICATION AND TEMPERATURE SENSOR

#154
20110030353
2011-02-10

Exhaust gas purifying device

#155
20110026560
2011-02-03

FILTER WITH MEMORY, COMMUNICATION AND TEMPERATURE SENSOR

#156
20100269490
2010-10-28

Apparatus for and method of purifying exhaust gas

#157
20100263355
2010-10-21

Method and device for diagnosing a particle filter

#158
20090282986
2009-11-19

Filtering device for filtering gaseous fuels in systems for supplying gas to internal combustion engines

#159
20090229467
2009-09-17

Electrically heated particulate matter filter with recessed inlet end plugs

#160
20090225808
2009-09-10

Filter with memory, communication and temperature sensor

#161
20090211601
2009-08-27

System for extracting vapor and particulates from a flow of a liquid and an air stream

#162
20090107117
2009-04-30

Diesel Engine Aftertreatment Control Operation with Waste Heat Recovery

#163
20090078122
2009-03-26

Air filtering system

#164
20080229732
2008-09-25

Exhaust emission control device

#165
20080209670
2008-09-04

Cleaning Appliance, in Particular Vacuum Cleaner

#166
20080087007
2008-04-17

Particulate matter detection sensor

#167
20070240578
2007-10-18

Filter with memory, communication and temperature sensor

#168
20070154282
2007-07-05

Self-attaching nut

#169
20070154281
2007-07-05

Self-attaching nut

#170
20070154280
2007-07-05

Self-attaching nut

#171
20070154279
2007-07-05

Self-attaching nut

#172
20070144354
2007-06-28

AUTOMATED MONITORING OF THE CONDITION OF AN AIR FILTER IN AN ELECTRONICS SYSTEM

#173
20060144232
2006-07-06

Method for detecting a fault in an HVAC system

#174
20060100796
2006-05-11

Clogging detector for air filter

#175
20050284297
2005-12-29

Gas purification system with an integrated hydrogen sorption and filter assembly

#176
20050265801
2005-12-01

Self-attaching nut

#177
20050163590
2005-07-28

Self-attaching nut

#178
16927719
2020-12-29

Passenger elevator air purification system