ClassID:

30519

B01D2257/93 - CPC Classification

Classification description:

Components to be removed Toxic compounds not provided for in groups  - 

Recent Application in this class:
#1
20260108849
2026-04-23

OXIDATION OF CESIUM AS METHOD FOR REMOVING CESIUM VAPOR FROM COVER GAS IN NUCLEAR REACTORS

#2
20260102638
2026-04-16

MASKLESS RESPIRATORY, SKIN, AND EYE PROTECTION DEVICE FOR AEROSOLS AND VAPORS INCLUDING CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR, AND EXPLOSIVE (CBRNE) CONTAMINANTS

#3
20260022992
2026-01-22

Collection Instrument and Collection System

#4
20250090989
2025-03-20

TRICKLE-BED SCRUBBER AND SCRUBBING PROCESS WITH WOODCHIP PACKED BED

#5
20250051667
2025-02-13

BIOMASS GASIFICATION AND WASTE INCINERATION INTEGRATED FURNACE

#6
20250032982
2025-01-30

METHOD FOR PROCESSING WASTE USING LOW-TEMPERATURE PLASMA AND DEVICE THEREFOR

#7
20250018314
2025-01-16

PRESSURE-ASSISTED SEPARATION COLUMN

#8
20240342651
2024-10-17

Methods and Equipment for Treatment of Odorous Gas Streams

#9
20240310741
2024-09-19

Exhaust system with U-shaped pipes

#10
20240191891
2024-06-13

DISINFECTANT, GAS ACCUMULATION AND COMBUSTION CONTROL DEVICE

#11
20240123392
2024-04-18

METHOD AND SYSTEM FOR REDUCTION OF UNWANTED GASES IN INDOOR AIR

#12
20240017212
2024-01-18

OXIDATION OF CESIUM AS METHOD FOR REMOVING CESIUM VAPOR FROM COVER GAS IN NUCLEAR REACTORS

#13
20230346012
2023-11-02

MINITOX 2 MOUTHPIECE WITH VENTILATED AIRFLOW FOR A SMOKING ARTICLE

#14
20230333489
2023-10-19

Exhaust system with u-shaped pipes

#15
20230285938
2023-09-14

BIOSILICA-PORATED CATALYTIC COMPOSITE MATERIALS

#16
20230257326
2023-08-17

Mitigating naturally occurring radioactive material in oxidative dehydrogenation

#17
20230080243
2023-03-16

METHOD FOR PROCESSING WASTE USING LOW-TEMPERATURE PLASMA AND DEVICE THEREFOR

#18
20220339471
2022-10-27

MULTI-LAYER FILTRATION SYSTEM AND FILTER UNIT COMPRISING SAME

#19
20220297060
2022-09-22

Solid material for purifying air and preparation method and use thereof

#20
20220111319
2022-04-14

Tailing pond remediation

#21
20220072469
2022-03-10

Disinfectant, gas accumulation and combustion control device

#22
20220065471
2022-03-03

Air treatment method and a system arranged for treating air in a clean room

#23
20220049863
2022-02-17

Gas accumulation and combustion control device

#24
20220018803
2022-01-20

GAS SENSOR

#25
20220008862
2022-01-13

Compound, Synthesis Method Thereof, and Separation and Recovery Agent Thereof

#26
20210283545
2021-09-16

Method and system for reduction of unwanted gases in indoor air

#27
20210245091
2021-08-12

Reactor for purifying a gas flow and unit comprising such a reactor

#28
20210232054
2021-07-29

Exhaust system with u-shaped pipes

#29
20210178358
2021-06-17

Arsine adsorbents

#30
20210140655
2021-05-13

Air handling system with integrated air treatment

#31
20210106940
2021-04-15

ADSORBENT-ASSISTED STABILIZATION OF HIGHLY REACTIVE GASES

#32
20200307359
2020-10-01

Portable apparatus and method of purifying air for breathing

#33
20200258644
2020-08-13

Sodium-cesium vapor trap system and method

#34
20200206718
2020-07-02

ODOR ABSORBING PAINT AND PREPARATION METHOD AND USE THEREOF

#35
20190321781
2019-10-24

Methods and equipment for treatment of odorous gas streams

#36
20190224622
2019-07-25

Apparatus and method for cleaning sterilizer exhaust gas

#37
20190168158
2019-06-06

HYDROGEN PEROXIDE VAPOR DETOXIFYING SYSTEM

#38
20190131600
2019-05-02

SAFETY LITHIUM-ION BATTERY SYSTEM

#39
20190099736
2019-04-04

Methods for using bentonite to remove pesticides from cannabinoid extract oils

#40
20190099697
2019-04-04

Methods for Removing Pesticides from Cannabinoid Extract Oils Using Countercurrent Partition Chromatography

#41
20190091620
2019-03-28

Adsorbent-assisted stabilization of highly reactive gases

#42
20190091503
2019-03-28

DECONTAMINATING AGENT FOR CHEMICAL WARFARE AGENT (CWA), METHOD OF DECONTAMINATING CWA USING THE SAME AND PRODUCT INCLUDING THE SAME

#43
20190079418
2019-03-14

Exhaust system with u-shaped pipes

#44
20190063744
2019-02-28

DEVICE OF CAPTURING SINTERED PRODUCT AFTER SINTERING WASTE GAS IN SEMICONDUCTOR MANUFACTURING PROCESS

#45
20190054404
2019-02-21

Tailing pond remediation

#46
20190022577
2019-01-24

Plasma abatement of compounds containing heavy atoms

#47
20180339261
2018-11-29

Method and system for reduction of unwanted gases in indoor air

#48
20180318758
2018-11-08

Plasma abatement of compounds containing heavy atoms

#49
20180263264
2018-09-20

Process for removal of mycotoxins from insoluble plant-derived protein

#50
20180207613
2018-07-26

Textile protective material of a new type and method for producing same

#51
20180126333
2018-05-10

Device and a Method for Cleaning a Gas

#52
20180050920
2018-02-22

Compound, synthesis method thereof, and separation and recovery agent thereof

#53
20180017254
2018-01-18

Method of capturing sintered product after sintering waste gas in semiconductor manufacturing process

#54
20170348455
2017-12-07

Air cleaner

#55
20170337995
2017-11-23

Sodium cesium vapor trap system and method

#56
20170266642
2017-09-21

High temperature layered mixed-metal oxide materials with enhanced stability

#57
20170128761
2017-05-11

Metal organic frameworks for the catalytic detoxification of chemical warfare nerve agents

#58
20170076828
2017-03-16

RADIOACTIVE DECONTAMINATION DEVICE AND DECONTAMINATION METHOD

#59
20170056818
2017-03-02

Use of ferrous sulfide for the removal of selenium from gases

#60
20170022081
2017-01-26

Process for treatment of sewage sludge

#61
20170008771
2017-01-12

Process for extracting phosgene

#62
20160363333
2016-12-15

AIR HANDLING SYSTEM WITH INTEGRATED AIR TREATMENT

#63
20160288043
2016-10-06

Systems and methods of cleaning cabin air in a transportation vehicle

#64
20160136563
2016-05-19

Superadsorbent material system for improved filtration applications

#65
20160038924
2016-02-11

Activated carbon with a special finishing, production and use thereof

#66
20150369501
2015-12-24

Ductless fume hood gas monitoring and detection system

#67
20150306537
2015-10-29

Rectangular parallelepiped fluid storage and dispensing vessel

#68
20150298043
2015-10-22

Method and system for reduction of unwanted gases in indoor air

#69
20150273440
2015-10-01

Visible light-responsive photocatalytic nanoparticle dispersion liquid, method for producing same, and member having photocatalytic thin film on surface

#70
20150258488
2015-09-17

Air handling system with integrated air treatment

#71
20150251133
2015-09-10

Plasma abatement of compounds containing heavy atoms

#72
20150250910
2015-09-10

Filtration medium with electrospun metal oxide nanofiber layer

#73
20150238784
2015-08-27

Zeolite coated nasal mask and disposable particulate respirator filtration media

#74
20150231563
2015-08-20

Method for purifying exhaust gas and for regenerating an oxidation catalyst

#75
20150196874
2015-07-16

Methods and equipment for treatment of odorous gas steams

#76
20150086458
2015-03-26

Formaldehyde absorbent and method for using the same

#77
20150059441
2015-03-05

Absorbent/solubilizing materials based on microporous organogels

#78
20150053080
2015-02-26

Adsorptive filter medium

#79
20140366883
2014-12-18

Filter box assembly and filter unit

#80
20140271419
2014-09-18

Catalytic removal of gas phase contaminants

#81
20140251134
2014-09-11

Superadsorbent material system for improved filtration applications

#82
20140202206
2014-07-24

Methods and equipment for treatment of odorous gas steams

#83
20140162872
2014-06-12

Filter material comprising porous organic polymers

#84
20140162346
2014-06-12

Method of concurrently filtering particles and collecting gases

#85
20140013867
2014-01-16

Microporous organogel absorbing/solubilising materials

#86
20130334068
2013-12-19

Rectangular parallelepiped fluid storage and dispensing vessel

#87
20130302231
2013-11-14

Multilayered mixed bed filter for the removal of toxic gases from air streams and methods thereof

#88
20130152783
2013-06-20

Ductless fume hood gas monitoring and detection system

#89
20130036908
2013-02-14

Method and apparatus for control and elimination of undesirable substances

#90
20130034464
2013-02-07

Active decontamination microcapsule filtration media

#91
20120308461
2012-12-06

Crosslinked polymer-carbon sorbent for removal of heavy metals, toxic materials and carbon dioxide

#92
20120301363
2012-11-29

MIX-TYPE CATALYST FILTER AND MANUFACTURING METHOD THEREOF

#93
20120282157
2012-11-08

Air purification

#94
20120213661
2012-08-23

WARM-UP SYSTEM FOR CATOX DECONTAMINATION SYSTEM

#95
20120160254
2012-06-28

CRYOTROPIC HYDROGELS AND THEIR USE AS FILTERS

#96
20120093696
2012-04-19

SYSTEM FOR DEGRADING AND REMOVING TOXIC SUBSTANCE BY MEANS OF THERMAL EXCITATION OF CHROMIUM OXIDE OR NICKEL OXIDE

#97
20110277846
2011-11-17

Rectangular parallelepiped fluid storage and dispensing vessel

#98
20110105008
2011-05-05

CATALYTIC AIR PURIFICATION SYSTEM FOR A VEHICLE USING MULTIPLE HEAT SOURCES FROM AN ENGINE

#99
20110061538
2011-03-17

Method of altering a fluid-borne contaminant

#100
20110045218
2011-02-24

DYNAMIC INKS AND COATINGS

#101
20110036145
2011-02-17

Ductless fume hood gas monitoring and detection system

#102
20100101413
2010-04-29

METHOD AND APPARATUS FOR CONTROL AND ELIMINATION OF UNDESIRABLE SUBSTANCES

#103
20090173225
2009-07-09

Rectangular parallelepiped fluid storage and dispensing vessel

#104
20080236677
2008-10-02

SCRUBBER SYSTEM IN SEMICONDUCTOR

#105
20070245899
2007-10-25

Sorption column

#106
20070157804
2007-07-12

METHOD AND APPARATUS FOR DECOMMISSIONING AND RECYCLING RETIRED ADSORBENT-BASED FLUID STORAGE AND DISPENSING VESSELS

#107
20060054018
2006-03-16

Rectangular parallelepiped fluid storage and dispending vessel

#108
20050217225
2005-10-06

Thermal regenerative granular-moving bed apparatus

#109
20050211090
2005-09-29

Method for achieving ultra-low emission limits in VOC control

#110
20050139071
2005-06-30

Air environment control system and technique

#111
20050126395
2005-06-16

Filter element

#112
20050089455
2005-04-28

Gas-using facility including portable dry scrubber system and/or over-pressure control arrangement

#113
20050087072
2005-04-28

Gas cabinet including integrated effluent scrubber

#114
20050028672
2005-02-10

Apparatus and process for removing contaminants from a flowing gas stream

#115
19194120
2025-12-16

Maskless respiratory and eye protection device for aerosols and vapors including chemical, biological, radiological, and nuclear (CBRN) contaminants

#116
18913327
2025-07-01

Maskless respiratory and eye protection device for aerosols and vapors including chemical, biological, radiological, and nuclear (CBRN) contaminants

#117
17957234
2024-06-18

Multivariate carboxylate derivatized phenyl-based metal-organic frameworks

#118
17957183
2024-07-16

Multivariate carboxylate derivatized phenyl-based metal-organic frameworks

#119
17956226
2024-05-21

Multivariate carboxylate derivatized phenyl-based metal-organic frameworks

#120
16709258
2022-10-04

Multivariate carboxylate derivatized phenyl-based metal-organic frameworks

#121
16258142
2019-11-05

Hydrogen peroxide vapor detoxifying system using honeycomb structure