Patents-Review.com
ClassID:

35886 ⎘

B04C2009/002 - CPC Classification

Classification description:

Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with external filters

Recent Application in this class:
#1
20260110004
2026-04-23

PROCESS FOR PREPARING LACTIC ACID

 #2
20260091398
2026-04-02

CYCLONE SEPARATOR, PURIFIER AND LASER PROCESSING SYSTEM

 #3
20260054274
2026-02-26

Equipment for Purifying Dust-containing Gas with Positive Pressure

 #4
20260054209
2026-02-26

Method for Purifying Dust-containing Gas with Positive Pressure

 #5
20260048356
2026-02-19

TWO-STAGE AIR CLEANER SYSTEM WITH SIDE-POSITIONED PRE-CLEANER AND PRE-CLEANER

 #6
20260034495
2026-02-05

CLEANING DEVICE FOR EXHAUST AIR OF AN APPARATUS FOR MACHINING COMPOSITE-MATERIAL WORKPIECES CONTAINING METAL AND NON-METAL

 #7
20250331697
2025-10-30

SURFACE CLEANING APPARATUS

 #8
20250331696
2025-10-30

SURFACE CLEANING APPARATUS

 #9
20250241496
2025-07-31

CYCLONIC AIR TREATMENT MEMBER AND SURFACE CLEANING APPARATUS INCLUDING THE SAME

 #10
20250241352
2025-07-31

COFFEE ROASTING SYSTEM HAVING A REMOVABLE VESSEL WITH A RESIDUAL CHAFF CHAMBER AND RESIDUAL WATER CHAMBER

 #11
20250208015
2025-06-26

METHODS OF COLLECTING AND ANALYZING MATERIALS FROM GASEOUS FLUIDS

 #12
20250160598
2025-05-22

SURFACE CLEANING APPARATUS

 #13
20250160591
2025-05-22

SURFACE CLEANING APPARATUS WITH AN EXTERNAL DIRT CHAMBER

 #14
20250127349
2025-04-24

SURFACE CLEANING APPARATUS

 #15
20250061800
2025-02-20

Vapor Displacement Refueling Including Data Communications

 #16
20250041917
2025-02-06

System for the controlled distribution of aquatic capping material and the capture of dust and particulates

 #17
20240389809
2024-11-28

Air duct assembly and cleaning device

 #18
20240359122
2024-10-31

INTEGRATED MANIFOLD FOR PRE-CLEANER DUST REMOVAL

 #19
20240342632
2024-10-17

Intake Module for Water Treatment Systems

 #20
20240341550
2024-10-17

Surface cleaning apparatus with an external dirt chamber

 #21
20240293969
2024-09-05

MATERIAL MANIPULATION IN THREE-DIMENSIONAL PRINTING

 #22
20240268621
2024-08-15

Surface cleaning apparatus

 #23
20240246047
2024-07-25

Airborne Dust Mitigation System

 #24
20240245273
2024-07-25

Cyclonic air treatment member and surface cleaning apparatus including the same

 #25
20240099530
2024-03-28

Dust and gas separator and vacuum cleaner

 #26
20240023774
2024-01-25

CLEANER

 #27
20240000275
2024-01-04

HANDHELD VACUUM CLEANER WITH IMPROVED FILTRATION EFFICIENCY

 #28
20230363600
2023-11-16

ROBOT CLEANER

 #29
20230274632
2023-08-31

Vapor displacement refueling including onboard internally recirculating chemical looping combustion system

 #30
20230270303
2023-08-31

Surface cleaning apparatus with an external dirt chamber

 #31
20230264885
2023-08-24

Surface cleaning apparatus

 #32
20230240495
2023-08-03

CLEANING APPARATUS

 #33
20230225574
2023-07-20

Cyclonic air treatment member and surface cleaning apparatus including the same

 #34
20230210323
2023-07-06

Cleaner

 #35
20230190056
2023-06-22

Vacuum cleaner

 #36
20230182152
2023-06-15

MULTI-CYCLONE VACUUM EXCAVATION SYSTEM

 #37
20230172412
2023-06-08

VACUUM CLEANER

 #38
20230165426
2023-06-01

Surface cleaning apparatus

 #39
20230114528
2023-04-13

CLEANER

 #40
20220401968
2022-12-22

MULTICYCLONE SEPARATOR

 #41
20220400918
2022-12-22

SEPARATION STRUCTURE FOR DUST CUP OF VACUUM CLEANER

 #42
20220378259
2022-12-01

Handheld vacuum cleaner

 #43
20220349804
2022-11-03

Device for collecting material from air

 #44
20220339822
2022-10-27

Material manipulation in three-dimensional printing

 #45
20220287537
2022-09-15

Base station and cleaning equipment

 #46
20220287526
2022-09-15

Air duct assembly and cleaning device

 #47
20220273148
2022-09-01

Environmental control unit for dust and odor control

 #48
20220219174
2022-07-14

Librixer comminutor and particle air classifier system

 #49
20220184640
2022-06-16

Surface cleaning apparatus

 #50
20220184433
2022-06-16

AIR TREATMENT SYSTEM

 #51
20220176316
2022-06-09

Vapor displacement refueling including onboard internally recirculating chemical looping combustion system

 #52
20220167811
2022-06-02

Surface cleaning apparatus with an external dirt chamber

 #53
20220161173
2022-05-26

FLOW AND PRESSURE CONTROL IN CYCLONIC FILTER ARRAYS

 #54
20220160198
2022-05-26

Air handling assembly and cleaning apparatus having same

 #55
20220145654
2022-05-12

Pool cleaner with cyclonic flow

 #56
20220127557
2022-04-28

A Bioreactor System

 #57
20220126306
2022-04-28

Sand Traps For Use In Oil And Gas Extraction Operations

 #58
20220053986
2022-02-24

CLEANER

 #59
20220040601
2022-02-10

Water processing system and arrangement

 #60
20220022709
2022-01-27

Autonomous vacuum

 #61
20220008841
2022-01-13

Vortex inducing device and a method of use thereof for concentrating sediment in a water tank

 #62
20210393094
2021-12-23

SURFACE CLEANING APPARATUS WITH AN ARRESTER PLATE HAVING A VARIABLE GAP

 #63
20210362963
2021-11-25

Separation process and plant for particulate matter

 #64
20210212531
2021-07-15

Working trolley with built-in dust suction system

 #65
20210204777
2021-07-08

Cleaner

 #66
20210130925
2021-05-06

Metal recovery method using adsorbent

 #67
20210130205
2021-05-06

Recovery system of composite powder carrier in HPB municipal wastewater treatment

 #68
20210086202
2021-03-25

Multi-cyclonic dust filter device

 #69
20210086201
2021-03-25

Cyclonic dust filter device

 #70
20210038036
2021-02-11

Cyclonic separation device and application thereof

 #71
20210016299
2021-01-21

Ventilation module for a rail vehicle

 #72
20200383545
2020-12-10

Cleaner

 #73
20200360847
2020-11-19

Flow and pressure control in cyclonic filter arrays

 #74
20200353483
2020-11-12

Tangential air cleaner with coiled filter cartridge

 #75
20200324303
2020-10-15

Surface cleaning apparatus

 #76
20200318585
2020-10-08

INERTIAL PRECLEANER WITH VARIABLE ASPIRATION FLOWRATE CONTROL VIA AMBIENT DUST CONCENTRATION SENSOR INPUT

 #77
20200247702
2020-08-06

Dual-airflow cyclone flash drying device

 #78
20200237172
2020-07-30

Surface cleaning apparatus with an arrester plate having a variable gap

 #79
20200221910
2020-07-16

Handheld vacuum cleaner

 #80
20200188816
2020-06-18

Water treatment system and method

 #81
20200181930
2020-06-11

Pool cleaner with cyclonic flow

 #82
20200100633
2020-04-02

Cyclone dust collecting apparatus and handheld cleaner having the same

 #83
20200094267
2020-03-26

Multi cyclone array for surface cleaning apparatus and a surface cleaning apparatus having same

 #84
20200094266
2020-03-26

Multi cyclone array for surface cleaning apparatus and a surface cleaning apparatus having same

 #85
20200085269
2020-03-19

Low profile surface cleaning head

 #86
20200070078
2020-03-05

Device for separating liquid from a gas stream within a liquid injected compressor and method thereof

 #87
20200037836
2020-02-06

Handheld vacuum cleaner

 #88
20200037835
2020-02-06

Handheld vacuum cleaner

 #89
20200030821
2020-01-30

Multi-cyclone separator of a multi-stage fluid filter for cleaning gaseous fluid and multi-stage fluid filter

 #90
20200030820
2020-01-30

Filter device

 #91
20200001310
2020-01-02

CYCLONE INTEGRATED TYPE STORAGE DEVICE, INTEGRATED GASIFICATION COMBINED CYCLE, AND METHOD FOR SEPARATING PARTICLES

 #92
20190366251
2019-12-05

Device for the separation of flue gas particles in laparoscopy

 #93
20190336883
2019-11-07

Cyclone type liquid-vapor separator and forced circulation type evaporator using the same

 #94
20190298130
2019-10-03

Surface cleaning apparatus with an arrester plate having a variable gap

 #95
20190298129
2019-10-03

Surface cleaning apparatus with dirt arrester having an axial step

 #96
20190298128
2019-10-03

Surface cleaning apparatus with dirt arrester having an axial step

 #97
20190183303
2019-06-20

Handheld vacuum cleaner

 #98
20190183300
2019-06-20

Handheld vacuum cleaner

 #99
20190150683
2019-05-23

Vacuum cleaner

 #100
20190117030
2019-04-25

Environmental control unit for dust and odor control

 #101
20190111531
2019-04-18

Chip extraction system

 #102
20190111375
2019-04-18

Server dust collector

 #103
20190091703
2019-03-28

Dust collector and cleaner having the same

 #104
20190091702
2019-03-28

Dust collector and cleaner having the same

 #105
20190082925
2019-03-21

Surface cleaning apparatus

 #106
20190082924
2019-03-21

Surface cleaning apparatus

 #107
20190082923
2019-03-21

Surface cleaning apparatus

 #108
20190082922
2019-03-21

Surface cleaning apparatus

 #109
20190082915
2019-03-21

Surface cleaning apparatus

 #110
20190082911
2019-03-21

Surface cleaning apparatus

 #111
20190082910
2019-03-21

Surface cleaning apparatus

 #112
20190082909
2019-03-21

Surface cleaning apparatus

 #113
20190082908
2019-03-21

Surface cleaning apparatus

 #114
20190082907
2019-03-21

Surface cleaning apparatus

 #115
20190082906
2019-03-21

Surface cleaning apparatus

 #116
20190082904
2019-03-21

Surface cleaning apparatus

 #117
20190082903
2019-03-21

Surface cleaning apparatus

 #118
20190032609
2019-01-31

Air cleaner

 #119
20190030547
2019-01-31

Separator for separating solid matter from a fluid

 #120
20190015840
2019-01-17

Method for operating a multi-cyclone for the separation of fine and very fine grain as well as a multi-cyclone

 #121
20190009282
2019-01-10

Powder drying system and method for recovering particles in such a system

 #122
20190008346
2019-01-10

Handheld surface cleaning apparatus

 #123
20180333021
2018-11-22

Handheld vacuum cleaner

 #124
20180328066
2018-11-15

Hydrocyclonic pool cleaner

 #125
20180328059
2018-11-15

Pool cleaner canister handle

 #126
20180311603
2018-11-01

Vacuum installation

 #127
20180310786
2018-11-01

Hand-held vacuum cleaner

 #128
20180290153
2018-10-11

Tangential air cleaner with coiled filter cartridge

 #129
20180281283
2018-10-04

MATERIAL MANIPULATION IN THREE-DIMENSIONAL PRINTING

 #130
20180281236
2018-10-04

Material manipulation in three-dimensional printing

 #131
20180266020
2018-09-20

Cotton opening and dust collecting device for refined cotton

 #132
20180242803
2018-08-30

Cyclone dust collector and vacuum cleaning device

 #133
20180155947
2018-06-07

Pool cleaner with cyclonic flow

 #134
20180104629
2018-04-19

Return filter

 #135
20170333918
2017-11-23

Dust separation apparatus and intelligent control system including the apparatus

 #136
20170298965
2017-10-19

Hydraulic fluid tank arrangement

 #137
20170247896
2017-08-31

Pool cleaner power coupling

 #138
20170189917
2017-07-06

Portable cyclone dust separator and corresponding dedusting system

 #139
20170106315
2017-04-20

Steamin Deamon

 #140
20170095753
2017-04-06

Cyclone type liquid-vapor separator and forced circulation type evaporator using the same

 #141
20170065986
2017-03-09

Debris separator

 #142
20160318037
2016-11-03

PROCESS AND SYSTEM FOR DRY RECOVERY OF FINE-AND SUPERFINE-GRAINED PARTICLES OF OXIDIZED IRON ORE AND A MAGNETIC SEPARATION UNIT

 #143
20160278592
2016-09-29

Cyclone dust collector and vacuum cleaning device having the same

 #144
20160271545
2016-09-22

Vacuum installation

 #145
20160215516
2016-07-28

Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system

 #146
20160166124
2016-06-16

DEFLAGRATION SUPPRESSION SCREEN FOR PORTABLE CYCLONIC DUST COLLECTOR/VACUUM CLEANER

 #147
20160121248
2016-05-05

Sludge concentrator assembly with varying first stage separator, combined with a second stage, clean flow outlet incorporating fixed and variable flow restrictor orifices

 #148
20160100729
2016-04-14

Domestic cyclonic vacuum cleaner

 #149
20160038867
2016-02-11

Particulate separator

 #150
20150305313
2015-10-29

Integrated multi-trophic farming process

 #151
20150238980
2015-08-27

Integrated cyclone separation device

 #152
20140345649
2014-11-27

System and method for remediating highly contaminated fine soil using multiple micro hydrocyclones

 #153
20140245566
2014-09-04

Surface cleaning apparatus

 #154
20140223690
2014-08-14

Pulse filter cleaner for portable cyclonic dust collector/vacuum cleaner

 #155
20140223689
2014-08-14

Deflagration suppression screen for portable cyclonic dust collector/vacuum cleaner

 #156
20130180907
2013-07-18

Sludge concentrator assembly incorporating upper centrifugal separator and lower barrier filter and exhibiting high flow velocity clean fluid outlet combined with low flow velocity solid entrapment

 #157
20130092619
2013-04-18

Plant for treating drilling muds

 #158
20130008840
2013-01-10

Particle separator

 #159
20120266576
2012-10-25

Handheld cleaning appliance

 #160
20120017551
2012-01-26

Filter for cleaning a fluid

 #161
20110289720
2011-12-01

Cyclone dust collecting apparatus and hand-held cleaner having the same

 #162
20110094052
2011-04-28

Portable cyclonic dust collector/vacuum cleaner

 #163
20100300051
2010-12-02

Liquid separator

 #164
20100218467
2010-09-02

Portable cyclonic dust collector

 #165
20100154367
2010-06-24

Vacuum cleaner and cyclone module therefor

 #166
20100064643
2010-03-18

Filter for cleaning a fluid

 #167
20090313959
2009-12-24

Handheld cleaning appliance

 #168
20090313958
2009-12-24

CYCLONIC SEPARATING APPARATUS

 #169
20090307863
2009-12-17

Handheld cleaning appliance

 #170
20090305862
2009-12-10

Cyclone dust-collecting apparatus

 #171
20090205489
2009-08-20

Hybrid separator

 #172
20090158932
2009-06-25

Particle separator

 #173
20090119870
2009-05-14

Device For Collecting Dust Particles Or Residual Material In An Airflow

 #174
20090095156
2009-04-16

SEPARATOR DEVICE AND METHOD FOR SEPARATING PARTICLES CONTAINED IN AN AIR STREAM

 #175
20080256910
2008-10-23

Apparatus for the elimination of dusts from gases

 #176
20080156301
2008-07-03

Dust Separation Device

 #177
20080086989
2008-04-17

Air precleaner arrangement for an internal combustion engine comprising two cyclone filters

 #178
20070251198
2007-11-01

Auxiliary dust collection system

 #179
20070234691
2007-10-11

Cyclone and cyclone air purifier and method of air purification thereof

 #180
20070234687
2007-10-11

Second-stage separator device for a vacuum cleaner

 #181
20060254226
2006-11-16

Multi cyclone dust-collecting apparatus

 #182
20060230718
2006-10-19

Dust-separating apparatus for vacuum cleaner

 #183
20060218744
2006-10-05

Electric vacuum cleaner

 #184
20060137310
2006-06-29

Vacuum cleaner having two cyclonic cleaning stages

 #185
20060130445
2006-06-22

Cyclone air purifier

 #186
20060123751
2006-06-15

Electric vacuum cleaner

 #187
20060091071
2006-05-04

Cyclone-type separator for separating foreign matters by utilizing a centrifugal force

 #188
20050242008
2005-11-03

Material classifier

 #189
20050242007
2005-11-03

Material classifier

 #190
20050177974
2005-08-18

Vacuum cleaner having two cyclonic cleaning stages

 #191
20050028675
2005-02-10

Vacuum cleaner

 #192
18659199
2024-12-24

Debris management system for both positive and negative pressure dust collectors

 #193
15613346
2018-05-15

Counter-flow ore separator

 #194
15401838
2017-12-05

Exhaust gas clean-up system for fossil fuel fired power plant

 #195
14859562
2017-07-11

Counter-flow ore separator

 #196
14257092
2017-11-21

Cyclonic fugitive dust sampler