ClassID:

29568

B01D46/429 - CPC Classification

Classification description:

Filters or filtering processes specially modified for separating dispersed particles from gases or vapours; Auxiliary equipment or operation thereof Means for wireless communication

Recent Application in this class:
#1
20260102727
2026-04-16

FAN FILTER UNIT AND CONTROL METHOD THEREOF

#2
20260077290
2026-03-19

TECHNOLOGIES FOR IDENTIFYING DEBRIS ON FILTERS

#3
20260049728
2026-02-19

POSITIVE PRESSURE CONTROL METHOD OF INDOOR AIR CLEANING NETWORK MECHANISM SYSTEM

#4
20260036320
2026-02-05

SYSTEM FOR CLEANING, ZEROING, AND PREVENTING AIR POLLUTION IN INDOOR SPACE

#5
20260034493
2026-02-05

AIR PURIFIER AND METHOD OF CONTROLLING THE SAME

#6
20250389434
2025-12-25

EXPANDABLE CLEANING DEVICE

#7
20250381508
2025-12-18

AIR FILTER WITH INTEGRATED SENSORICS

#8
20250303337
2025-10-02

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

#9
20250281867
2025-09-11

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

#10
20250198641
2025-06-19

INDOOR AIR CLEANING SYSTEM

#11
20250196044
2025-06-19

AIR FILTER SYSTEM FOR DETECTING DIFFERENTIAL OPTICAL PROPERTIES TO INDICATE A NEED FOR SERVICING

#12
20250189154
2025-06-12

AIR FILTER SYSTEM FOR DETECTING MECHANICAL STRAIN TO INDICATE A NEED FOR SERVICING

#13
20250153085
2025-05-15

FILTRATION SYSTEMS WITH PROACTIVE PULSE CLEANING

#14
20250116248
2025-04-10

ELECTRONIC FILTER DETECTION FEATURE FOR LIQUID FILTRATION SYSTEMS

#15
20250067459
2025-02-27

INDOOR AIR CLEANING SYSTEM

#16
20250020355
2025-01-16

INDOOR AIR POLLUTION PREVENTION SYSTEM

#17
20250020354
2025-01-16

INDOOR AIR POLLUTION PREVENTION SYSTEM

#18
20240418392
2024-12-19

AIR TREATMENT SYSTEM INCLUDING AIR OUTLETS WITH LAMINAR FLOW

#19
20240399280
2024-12-05

MONITORING DEVICES FOR AIR FILTRATION SYSTEMS

#20
20240318373
2024-09-26

EXHAUST FILTER ASSEMBLY FOR A CLOTHES DRYER

#21
20240299872
2024-09-12

AIR CLEANING SYSTEM

#22
20240293768
2024-09-05

FILTER ELEMENT ANALYSIS SYSTEM AND ASSOCIATED METHODS

#23
20240246017
2024-07-25

VEHICLE, FLEET, AND METHOD FOR TREATING ENVIRONMENT AIR

#24
20240210066
2024-06-27

SYSTEM FOR DETECTING AND CLEANING AIR POLLUTION IN INDOOR SPACE WITH HEATING, VENTILATION AND AIR CONDITIONING

#25
20240175594
2024-05-30

SYSTEM FOR DETECTING AND CLEANING INDOOR AIR POLLUTION

#26
20240024611
2024-01-25

AIR FILTRATION APPARATUS AND SYSTEM FOR PROVIDING PATIENT INFORMATION

#27
20240001278
2024-01-04

CENTRAL CONTROLLER FOR COMPLETELY CLEANING INDOOR AIR POLLUTION

#28
20230398482
2023-12-14

FILTER MODULE WITH RADIO-FREQUENCY IDENTIFICATION TAG FOR TUNING A FILTRATION SYSTEM

#29
20230372856
2023-11-23

FILTER SYSTEMS, ELEMENTS AND METHODS WITH SHORT-RANGE WIRELESS TRACKING FEATURES

#30
20230358193
2023-11-09

Electronic filter detection feature for liquid filtration systems

#31
20230356133
2023-11-09

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

#32
20230321581
2023-10-12

COMPRESSED GAS FILTER WITH THROUGH-OPENING IN THE HOUSING HEAD

#33
20230304904
2023-09-28

DEVICE FOR DETECTING GAS AND CONTROLLING VOLUME OF CLEAN GAS

#34
20230304684
2023-09-28

FRESH AIR VENTILATION DEVICE FOR AIR POLLUTION PREVENTION

#35
20230294031
2023-09-21

AIR TREATMENT SYSTEM, METHOD, VEHICLE AND FLEET FOR TREATING ENVIRONMENT AIR

#36
20230233976
2023-07-27

EXHAUST FAN FOR PREVENTING AIR POLLUTION

#37
20230233045
2023-07-27

VACUUM CLEANER FOR AIR POLLUTION PREVENTION

#38
20230219029
2023-07-13

FILTRATION SYSTEMS WITH SELECTIVE PULSE CONTROL

#39
20230191301
2023-06-22

Filter element analysis system and associated methods

#40
20230115276
2023-04-13

AIR PURIFIER

#41
20230101511
2023-03-30

Pollution monitoring system and method thereof

#42
20230073716
2023-03-09

STORAGE CONTAINER WTIH FILTRATION SYSTEM

#43
20230071376
2023-03-09

Air quality monitoring and control system

#44
20220410064
2022-12-29

AIR PURIFIER

#45
20220395603
2022-12-15

Airborne virus, fungi, bacteria and other microorganisms air sterilization system

#46
20220379689
2022-12-01

SYSTEM FOR TREATING THE AIR IN THE CABIN OF A VEHICLE

#47
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

#48
20220364748
2022-11-17

Indoor air pollution prevention system

#49
20220355233
2022-11-10

PATHOGEN SURVEILLANCE SYSTEMS AND CORRESPONDING METHODS

#50
20220349593
2022-11-03

INDOOR AIR POLLUTION PREVENTION SYSTEM

#51
20220288520
2022-09-15

USEFUL INFORMATION PROVISION SYSTEM

#52
20220282873
2022-09-08

AUTOMATIC SENSING VENT HOOD

#53
20220280897
2022-09-08

METHOD FOR DETECTING AND FILTERING INDOOR POLLUTED GAS

#54
20220219107
2022-07-14

GAS EVACUATION DEVICE

#55
20220176294
2022-06-09

Smart filter elements and systems

#56
20220170661
2022-06-02

Feedback-driven air treatment system for new and existing buildings

#57
20220161176
2022-05-26

Air cleaner

#58
20220136471
2022-05-05

Electronic filter detection feature for liquid filtration systems

#59
20220090814
2022-03-24

Air cleaning system

#60
20220088525
2022-03-24

Air filter condition sensing

#61
20220072464
2022-03-10

FILTER WITH COMMUNICATOR

#62
20220054966
2022-02-24

Diagnostic and recirculation control systems and methods

#63
20220054965
2022-02-24

Filtration systems with proactive pulse cleaning

#64
20220047767
2022-02-17

Device containing air detection, filtering, disinfecting and conditioning elements with display

#65
20220036663
2022-02-03

Filtration systems with multitiered data exchange capabilities

#66
20220032231
2022-02-03

Air purification device

#67
20220016362
2022-01-20

System and method for launching usage mode in a multimodal surgical gas delivery system

#68
20210402342
2021-12-30

Filter systems, elements and methods with short-range wireless tracking features

#69
20210394108
2021-12-23

Filter arrangement and method

#70
20210394107
2021-12-23

IoT enabled smart filter device

#71
20210387127
2021-12-16

Monitoring devices for air filtration systems

#72
20210346833
2021-11-11

AIR FILTER CONDITION SENSING

#73
20210339184
2021-11-04

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

#74
20210339183
2021-11-04

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

#75
20210339180
2021-11-04

Air purification system and internet of things artificial intelligence control apparatus

#76
20210331112
2021-10-28

Air cleaner

#77
20210322797
2021-10-21

REUSABLE BREATHING MASK USING DISPOSABLE RECYCLABLE FLEXIBLE MATERIALS

#78
20210252443
2021-08-19

Air filter apparatus, system and method

#79
20210205751
2021-07-08

Remote control system for gas detection and purification

#80
20210199079
2021-07-01

Electronic filter detection feature for liquid filtration systems

#81
20210164674
2021-06-03

Room air purifier with RFID reader

#82
20210129171
2021-05-06

FILTER MONITORING SYSTEMS AND METHODS

#83
20210060475
2021-03-04

Air quality monitoring and control system

#84
20210060474
2021-03-04

METHOD FOR PREDICTING THE SERVICE LIFE OF A FILTER

#85
20210023495
2021-01-28

Filtration systems, filter elements and methods with wireless power transmission and separate signal output

#86
20200391151
2020-12-17

Air filter condition sensing

#87
20200370496
2020-11-26

System and method for outputting filter monitoring system information via telematics

#88
20200298166
2020-09-24

Filter systems, elements and methods with short-range wireless tracking features

#89
20200298162
2020-09-24

Air purifier, air purifying system, and method of controlling air purifying system

#90
20200292192
2020-09-17

BLOWER PROPERTIES USED FOR USER WARNING

#91
20200223292
2020-07-16

AIR FILTER ASSEMBLY

#92
20200215915
2020-07-09

Cabin air filter element monitoring and analysis system and associated methods

#93
20200215474
2020-07-09

AIR TREATMENT SYSTEM

#94
20200179859
2020-06-11

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

#95
20200179857
2020-06-11

Method for determining utilized capacity of an air filter

#96
20200023296
2020-01-23

Filter element, filter system comprising a filter element, and method for producing a filter element

#97
20200016524
2020-01-16

Air cleaner

#98
20200009491
2020-01-09

Filter systems, elements and methods with short-range wireless tracking features

#99
20190381443
2019-12-19

Terminal apparatus and method of transmitting control command to air cleaning apparatus using air pollution information acquired while a moving cleaning apparatus moves

#100
20190374884
2019-12-12

Apparatus for filtering a liquid and method for detecting a state of at least a filter element

#101
20190369628
2019-12-05

Artificial intelligence device for guiding arrangement location of air cleaning device and operating method thereof

#102
20190353933
2019-11-21

Glasses having air purification function

#103
20190291037
2019-09-26

Air filter condition sensing

#104
20190275357
2019-09-12

PORTABLE POSITIVE AIR FILTRATION DEVICE

#105
20190262756
2019-08-29

Air filter condition sensing

#106
20190253856
2019-08-15

FILTER ELEMENT FOR A FILTER MODULE FOR FILTERING PROCESS AIR FOR A TREATMENT STATION

#107
20190168584
2019-06-06

Filter apparatus for a motor vehicle, and method for operating such a filter apparatus

#108
20190153971
2019-05-23

System and method for outputting filter monitoring system information via telematics

#109
20190120157
2019-04-25

Electronic filter detection feature for liquid filtration systems

#110
20190107302
2019-04-11

Room air purifier with RFID reader

#111
20190090036
2019-03-21

Filter element sensor module having processing and wireless communication capabilities

#112
20190083917
2019-03-21

SMART AIR FILTER APPARATUS AND SYSTEM

#113
20190054411
2019-02-21

Filter systems, elements and methods with short-range wireless tracking features

#114
20190054401
2019-02-21

Identification of filter media within a filtration system

#115
20190046818
2019-02-14

Driving and information transmitting system for air-filtering protection device

#116
20190032932
2019-01-31

Air purification device and air purification system

#117
20190030476
2019-01-31

Mobile dust extraction device

#118
20190003738
2019-01-03

AIR FILTER SENSOR, AIR FILTER CLEANING SYSTEM AND REFRIGERANT SENSOR

#119
20190001250
2019-01-03

Air quality monitoring and control system

#120
20180335368
2018-11-22

Filtration monitoring system that monitors dual filtration systems

#121
20180318746
2018-11-08

Method and system for predictive air filter maintenance for sustained indoor air quality

#122
20180264157
2018-09-20

Air Treatment System

#123
20180221796
2018-08-09

Electromagnetic sensor for active monitoring of filter media within a filtration system

#124
20180221795
2018-08-09

Identification of filter media within a filtration system

#125
20180221597
2018-08-09

System and method for launching usage mode in a multimodal surgical gas delivery system

#126
20180214801
2018-08-02

Apparatuses, systems and methods for providing filter recognition

#127
20180161716
2018-06-14

AIR PURIFIER BASED ON FILTER ANTI-COUNTERFEITING IDENTIFICATION

#128
20180117508
2018-05-03

Filter including RFID tag

#129
20180056899
2018-03-01

Operating method for a filter system and filter system

#130
20170341001
2017-11-30

Air purifier filter system, an air purifier and a method for controlling an air purifier

#131
20170284927
2017-10-05

FILTER REPLACEMENT LIFETIME PREDICTION

#132
20170259200
2017-09-14

Vehicle air system with high efficiency filter

#133
20170246486
2017-08-31

SYSTEMS AND METHODS FOR AIR FILTRATION MONITORING

#134
20170245908
2017-08-31

Filtration device for central vacuum system

#135
20170239607
2017-08-24

General ventilation system with automatic cleaning cycle

#136
20170159961
2017-06-08

AIR FILTER SENSOR, AIR FILTER CLEANING SYSTEM AND REFRIGERANT SENSOR

#137
20170144097
2017-05-25

Methods and apparatuses for detecting parameter for air purifier

#138
20170136271
2017-05-18

PERSONAL AIR FILTRATION DEVICE

#139
20170113517
2017-04-27

AUTOMATIC DUST REMOVAL DEVICE FOR VEHICLE

#140
20170087500
2017-03-30

Localized ventilation systems and methods

#141
20170080373
2017-03-23

AIR PURIFICATION SYSTEM

#142
20170067814
2017-03-09

Maximum filter flow predictor

#143
20160367927
2016-12-22

Remote controllable air treatment apparatus

#144
20160367926
2016-12-22

Vapor device for filtering and testing material

#145
20160367925
2016-12-22

Air Analyzer, Treatment And Peer Networking Apparatus

#146
20160363339
2016-12-15

Remotely Controllable System For Localized Air Sensing

#147
20160361678
2016-12-15

Peer-to-peer air analysis and treatment

#148
20160361677
2016-12-15

Air analyzer and treatment apparatus

#149
20160360791
2016-12-15

Air Analyzer And Treatment System

#150
20160354718
2016-12-08

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

#151
20160346721
2016-12-01

Air purification method and apparatus

#152
20160341467
2016-11-24

ACTIVE AIR FILTER ASSEMBLIES FOR REFRIGERATOR APPLIANCES

#153
20160317962
2016-11-03

Filtration monitoring system

#154
20160273471
2016-09-22

Electronic filter detection feature for liquid filtration systems

#155
20160214051
2016-07-28

Rescue terminal and system

#156
20160213954
2016-07-28

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

#157
20160206988
2016-07-21

General ventilation system with automatic cleaning cycle

#158
20160184755
2016-06-30

Methods and apparatuses for sending prompt message to close a movable article

#159
20160175755
2016-06-23

Air purifier

#160
20160121254
2016-05-05

AIR FILTRATION SYSTEM

#161
20160067644
2016-03-10

MODULAR COMPACT HI-PERFORMANCE SINGULAR SKU FILTRATION DEVICE WITH COMMON PLUG AND PLAY INTERFACE ARCHITECTURE CAPABLE OF DOCKING WITH FAN, MATERIAL HANDLING, HVAC, GEOTHERMAL COOLING AND OTHER ANCILLARY SYSTEMS

#162
20160067639
2016-03-10

Apparatuses, systems and methods for providing filter recognition

#163
20160023151
2016-01-28

ONE TYPE OF WALL-MOUNTED AIR PURIFIER

#164
20150369717
2015-12-24

Debris filter sensor

#165
20150241318
2015-08-27

Filter replacement lifetime prediction

#166
20150196863
2015-07-16

Filter replacement lifetime prediction

#167
20150153317
2015-06-04

System for Inexpensive Characterization of Air Pollutants and Inexpensive Reduction of Indoor Dust

#168
20150135660
2015-05-21

Jet engine comprising a device for spraying oil into an air-oil volume flow

#169
20150052978
2015-02-26

Filtration monitoring system

#170
20150000518
2015-01-01

NETWORK ENABLED REPLACEMENT AIR FILTER WITH PLEATED FILTER MEDIA ADVANCE

#171
20140306797
2014-10-16

Fume extraction device having system for validating credentialed filters

#172
20140283682
2014-09-25

Filter replacement lifetime prediction

#173
20130146052
2013-06-13

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

#174
20120222560
2012-09-06

Direct replacement filter with automatic pleated filter media advance

#175
20120111190
2012-05-10

AIR PURIFICATION AND DECONTAMINATION SYSTEM

#176
20110277628
2011-11-17

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

#177
20110121946
2011-05-26

Antenna gasket for process housings

#178
20110061527
2011-03-17

Direct replacement air filter with automatic filter media advance and wireless communications

#179
20110043164
2011-02-24

Powered cartridges and other devices within housings

#180
20110036782
2011-02-17

FILTER WITH MEMORY, COMMUNICATION AND TEMPERATURE SENSOR

#181
20110026560
2011-02-03

FILTER WITH MEMORY, COMMUNICATION AND TEMPERATURE SENSOR

#182
20110024337
2011-02-03

Filter with data storage provided with an antenna for transmitting signals

#183
20100180577
2010-07-22

Apparatus and method for onboard performance monitoring of exhaust gas particulate filter

#184
20100170833
2010-07-08

Powered cartridges and other devices within housings

#185
20090243395
2009-10-01

Antenna gasket for process housing

#186
20090225808
2009-09-10

Filter with memory, communication and temperature sensor

#187
20080087589
2008-04-17

Powered cartridges and other devices within housings

#188
20080078289
2008-04-03

System and method for removing contaminants

#189
20070241510
2007-10-18

Filter seating monitor

#190
20070240578
2007-10-18

Filter with memory, communication and temperature sensor

#191
20060192570
2006-08-31

Apparatus for monitoring consumable parts

#192
18518523
2026-02-24

IoT enabled smart filter device

#193
17862436
2023-07-25

Smart IoT energy saving sound wave air filter system and use for air purifiers and a method of air filtration thereof

#194
17357971
2022-02-22

Apparatus and system for indoor airborne pathogen control

#195
16882474
2020-12-15

IoT enabled smart filter device

#196
16251060
2020-05-05

Clogged dust filter monitor

#197
15971947
2021-12-07

Automatically scrolling air filter