ClassID:

29719

B01D53/74 - CPC Classification

Classification description:

Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,; Chemical or biological purification of waste gases General processes for purification of waste gases; Apparatus or devices specially adapted therefor

Sub-classes:
Recent Application in this class:
#1
20260138086
2026-05-21

GAS PURIFICATION SYSTEM AND METHOD BASED ON INTELLIGENT GAS REGULATORY INTERNET OF THINGS

#2
20260016002
2026-01-15

EMISSIONS COLLECTION SYSTEM

#3
20250346517
2025-11-13

GLASS MELTING PROCESS WITH VERY LOW TO ZERO-CO2 EMISSION

#4
20250312734
2025-10-09

EXHAUST GAS TREATMENT AND MONITORING SYSTEM FOR A MEDICAL WASTE DISPOSAL EQUIPMENT

#5
20250296041
2025-09-25

ORGANIC SOLVENT RECOVERY SYSTEM USING AN INERT GAS CLOSED LOOP STREAM

#6
20250288954
2025-09-18

GAS RECOVERY SYSTEMS AND METHODS BASED ON INTELLIGENT GAS REGULATORY INTERNET OF THINGS

#7
20250244246
2025-07-31

Photolytic Converter

#8
20250135460
2025-05-01

EXPERIMENTATION TABLE INTEGRATED WITH HARMFUL GAS REDUCTION AND AIR PURIFICATION SYSTEM

#9
20250075647
2025-03-06

ENGINE SYSTEM

#10
20240132783
2024-04-25

INTEGRATED SYSTEM OF BIOMASS TO RENEWABLE NATURAL GAS TO METHANOL, AND OTHER VALUE ADDED PRODUCTS

#11
20240102406
2024-03-28

Engine system

#12
20230166213
2023-06-01

CARBON DIOXIDE CAPTURING SYSTEM AND OPERATION METHOD THEREOF

#13
20230147721
2023-05-11

Engine system

#14
20220412893
2022-12-29

PHOTOLYTIC CONVERTER

#15
20220154079
2022-05-19

Integrated system of biomass to renewable natural gas to methanol, and other value added products

#16
20210170331
2021-06-10

Carbon dioxide capturing system and operation method thereof

#17
20200282358
2020-09-10

Process and apparatus for the recovery of methanol

#18
20200054984
2020-02-20

Flue gas purification tower

#19
20200038805
2020-02-06

Method for exhaust gas abatement under reduced pressure and apparatus therefor

#20
20190323409
2019-10-24

Plant for absorption of individual components in gases

#21
20190134545
2019-05-09

Reheating collection device for gas phase process

#22
20190086337
2019-03-21

Photolytic converter

#23
20190009212
2019-01-10

Decontamination procedure using a biofilter to retain and recycle particulate matter from combustion fumes

#24
20180371334
2018-12-27

Use of compositions having a content of 3,3′-methylenebis(5-methyloxazolidine) in the removal of sulphur compounds from process streams

#25
20180361393
2018-12-20

Systems and method for removal of acid gas in a circulating dry scrubber

#26
20180311678
2018-11-01

Systems and method for removal of acid gas in a circulating dry scrubber

#27
20180299170
2018-10-18

Evaporative chilling systems and methods using a selective transfer membrane

#28
20180207580
2018-07-26

Vacuum pump with abatement function

#29
20180168112
2018-06-21

Plant purification device and control method thereof

#30
20180001258
2018-01-04

Urea-water injector module

#31
20170304770
2017-10-26

Thermal power plant exhaust purification device

#32
20170256425
2017-09-07

Methods and apparatus for conserving electronic device manufacturing resources

#33
20170167421
2017-06-15

Engine control sysstem configured to adjust present operation pursuant to predicted duty cycle operating conditions

#34
20160279565
2016-09-29

Dual injection grid arrangement

#35
20160122543
2016-05-05

Pollution Control System And Method For Hot-Mix Asphalt Manufacturing

#36
20160107971
2016-04-21

Heat management process

#37
20150152784
2015-06-04

Method and system for sequestering carbon dioxide and producing hydrogen gas

#38
20150147241
2015-05-28

Infectious medical waste treatment system

#39
20150136239
2015-05-21

Apparatus for conserving electronic device manufacturing resources including ozone

#40
20140364302
2014-12-11

Porous bodies and methods

#41
20140363616
2014-12-11

Honeycomb structure

#42
20140352820
2014-12-04

Vacuum pump with abatement function

#43
20140348717
2014-11-27

Vacuum pump with abatement function

#44
20140170047
2014-06-19

Method for removing impurities from flue gas condensate

#45
20130323087
2013-12-05

Compressor and method for compressing technical gases

#46
20130272941
2013-10-17

Method for the treatment of exhaust gas produced by high-temperature waste incinerator with a dual-purpose reactor and the system thereof

#47
20130153404
2013-06-20

Catalyst-free removal of NOfrom combustion exhausts using intense pulsed electron beams

#48
20130101472
2013-04-25

Reducing agent supply device and exhaust gas denitrification system using the same

#49
20120304866
2012-12-06

Toxic gas removal and air conditioning system for human life support in enclosed refuge spaces

#50
20120251414
2012-10-04

Porous bodies and methods

#51
20120082603
2012-04-05

Porous bodies and methods

#52
20120079941
2012-04-05

Porous bodies and methods

#53
20110229390
2011-09-22

Porous bodies and methods

#54
20110229389
2011-09-22

Porous bodies and methods

#55
20110041470
2011-02-24

FLUID ASSEMBLIES COMPRISING A PURIFICATION ELEMENT

#56
20110008214
2011-01-13

PURIFICATION ASSEMBLY HAVING CATALYSTS FOR GASES AND COMBUSTION FUMES FROM SOLID FUEL HEATING APPARATUS

#57
20100298124
2010-11-25

Porous bodies and methods

#58
20100294709
2010-11-25

Fluid treatment arrangements and methods for operating fluid treatment arrangements

#59
20100133106
2010-06-03

Porous bodies and methods

#60
20090272272
2009-11-05

Semiconductor manufacturing facility utilizing exhaust recirculation

#61
20090246105
2009-10-01

Methods and apparatus for conserving electronic device manufacturing resources

#62
20090151569
2009-06-18

Exhaust Processor for Coating Machine

#63
20090031855
2009-02-05

Porous bodies and methods

#64
20090013868
2009-01-15

PROCESS AND APPARATUS FOR THE SEPARATION OF A GASEOUS MIXTURE

#65
20080236677
2008-10-02

SCRUBBER SYSTEM IN SEMICONDUCTOR

#66
20080164220
2008-07-10

Fluid treatment arrangements and methods for operating fluid treatment arrangements

#67
20080145281
2008-06-19

Gas oxygen incinerator

#68
20070253873
2007-11-01

Apparatus and method for cleaning, neutralizing carbon monoxide and recirculating exhaust air in a confined environment

#69
20070190469
2007-08-16

METHODS AND APPARATUS FOR PREVENTING DEPOSITION OF REACTION PRODUCTS IN PROCESS ABATEMENT REACTORS

#70
20070172399
2007-07-26

Methods and apparatus for sensing characteristics of the contents of a process abatement reactor

#71
20070172398
2007-07-26

Apparatus for manufacturing a process abatement reactor

#72
20070169889
2007-07-26

METHODS AND APPARATUS FOR SELECTIVELY COUPLING PROCESS TOOLS TO ABATEMENT REACTORS

#73
20070062167
2007-03-22

Semiconductor manufacturing facility utilizing exhaust recirculation

#74
20070045198
2007-03-01

Method for purifying fluid and static mixer

#75
20070003800
2007-01-04

Air filter assembly for low temperature catalytic processes

#76
20060120913
2006-06-08

Method for deodorising large-scale plants

#77
20060078480
2006-04-13

Method and device for cleaning air

#78
20060060088
2006-03-23

Wetted particle and droplet impingement surface

#79
20060011112
2006-01-19

Method and device for pollution reduction from exhausts emissions

#80
20050287050
2005-12-29

Air purification system with regenerative purification units

#81
20050211415
2005-09-29

Integrated air processing devices and isolation containment systems using such devices

#82
20050175522
2005-08-11

Devices and methods for chemical reactive filtration

#83
20050129593
2005-06-16

Reaction appparatus with a heat-exchanger

#84
20050109419
2005-05-26

Gas supplying method and system

#85
20050100492
2005-05-12

Vehicle having atmosphere pollutant treating surface

#86
20050039425
2005-02-24

Semiconductor manufacturing facility utilizing exhaust recirculation

#87
20050022670
2005-02-03

Air filter assembly for low temperature catalytic processes

#88
16375647
2024-12-17

High reactivity lime hydrate and methods of manufacturing and uses thereof

#89
16216646
2020-06-02

Systems and method for removal of acid gas in a circulating dry scrubber

#90
14215704
2018-01-23

Wastewater pump station venting system and method

#91
13766588
2014-05-13

Apparatus and method to produce synthetic gas