ClassID:

144292

F04D29/424 - CPC Classification

Classification description:

Details, component parts, or accessories; Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps; Fan casings Double entry casings

Recent Application in this class:
#1
20260036139
2026-02-05

FAN ASSEMBLY, FAN APPARATUS, AND CONNECTOR

#2
20260022709
2026-01-22

CENTRIFUGAL FAN

#3
20260007843
2026-01-08

RESPIRATORY PRESSURE THERAPY SYSTEM

#4
20250257734
2025-08-14

NECK FAN

#5
20250250986
2025-08-07

NECK FAN

#6
20250250985
2025-08-07

CENTRIFUGAL FAN, NECK FAN, AND VORTEX SHELL ASSEMBLY

#7
20250215891
2025-07-03

CENTRIFUGAL FAN

#8
20250180034
2025-06-05

AIR BLOWER

#9
20250163922
2025-05-22

CENTRIFUGAL FAN, NECK FAN, AND VORTEX SHELL ASSEMBLY

#10
20250161606
2025-05-22

IMPELLER AND MOTOR ASSEMBLY

#11
20250146501
2025-05-08

NECK FAN

#12
20250075706
2025-03-06

HANGING NECK FAN

#13
20250012293
2025-01-09

ELECTRIC WATER PUMP

#14
20240318663
2024-09-26

Head mechanism and fan apparatus

#15
20240309879
2024-09-19

CENTRIFUGAL FAN, NECK FAN, AND VORTEX SHELL ASSEMBLY

#16
20240307639
2024-09-19

RESPIRATORY PRESSURE THERAPY SYSTEM

#17
20240216627
2024-07-04

RESPIRATORY PRESSURE THERAPY SYSTEM

#18
20240200828
2024-06-20

Fan and Heat Pump Type Water Heater Using Same

#19
20240117815
2024-04-11

FAN ASSEMBLY, FAN APPARATUS, AND CONNECTOR

#20
20240077082
2024-03-07

CENTRIFUGAL FAN, NECK FAN, AND VORTEX SHELL ASSEMBLY

#21
20240026896
2024-01-25

CENTRIFUGAL AIR-SENDING DEVICE AND AIR-CONDITIONING APPARATUS

#22
20230340959
2023-10-26

Multi-stage turbomachine

#23
20230272802
2023-08-31

Neck fan

#24
20230265861
2023-08-24

Housing for flow-conducting components

#25
20230258193
2023-08-17

Neck fan

#26
20230211097
2023-07-06

Impeller and motor assembly

#27
20230135727
2023-05-04

Impeller, multi-blade air-sending device, and air-conditioning apparatus

#28
20230097990
2023-03-30

Blowing unit of air conditioner for vehicle

#29
20220333606
2022-10-20

Neck fan

#30
20220290687
2022-09-15

Portable blowing device

#31
20220282735
2022-09-08

BLOWER

#32
20220228601
2022-07-21

Centrifugal fan and clothing dryer

#33
20220220974
2022-07-14

Blower

#34
20220145893
2022-05-12

Impeller, multi-blade air-sending device, and air-conditioning apparatus

#35
20220106963
2022-04-07

Neck fan

#36
20220016375
2022-01-20

Respiratory pressure therapy system

#37
20220010798
2022-01-13

BACKPACK BLOWER

#38
20210372411
2021-12-02

Turbo fan, air sending device, air-conditioning device, and refrigeration cycle device

#39
20210355960
2021-11-18

Portable blowing device

#40
20210355959
2021-11-18

Portable blowing device

#41
20210310498
2021-10-07

Bearing housing for a two-wheel air cycle machine

#42
20210293250
2021-09-23

Blower

#43
20210277904
2021-09-09

Air mover

#44
20210262485
2021-08-26

Centrifugal blower

#45
20210254629
2021-08-19

Fan housing, fan and operating system having a fan

#46
20210239128
2021-08-05

Single suction centrifugal blower

#47
20210199125
2021-07-01

Centrifugal fan, air-sending device, air-conditioning apparatus, and refrigeration cycle apparatus

#48
20200340494
2020-10-29

Variable geometry of a housing for a blower assembly

#49
20200291950
2020-09-17

Blowing device

#50
20200277966
2020-09-03

Method to reduce entrance losses to increase fan inlet flow and reduce acoustic noise

#51
20200207180
2020-07-02

Blower unit of air conditioner for vehicle

#52
20200129909
2020-04-30

Air purifier including bi-directional fans having different discharge directions

#53
20200122551
2020-04-23

Blower unit of air conditioner for vehicle

#54
20200072237
2020-03-05

Asymmetric double inlet backward curved blower

#55
20200040900
2020-02-06

Thin cooling fan

#56
20190277305
2019-09-12

Air mover

#57
20190271327
2019-09-05

Industrial fan housing assembly with replaceable scroll

#58
20190262561
2019-08-29

Impeller and motor assembly

#59
20190128279
2019-05-02

Heat dissipation fan

#60
20190104694
2019-04-11

Backpack blower

#61
20190078573
2019-03-14

Fan device and method for manufacturing the same

#62
20190003728
2019-01-03

Air conditioner and blower device

#63
20190003491
2019-01-03

Air mover inlet interface and cover

#64
20180340463
2018-11-29

Noise suppression systems

#65
20180320698
2018-11-08

Local ventilation equipment and blower therein

#66
20180223865
2018-08-09

Centrifugal fan

#67
20180187686
2018-07-05

Blower and exhaust fan comprising the same

#68
20180023582
2018-01-25

Blower

#69
20180023579
2018-01-25

Blower

#70
20170342893
2017-11-30

Noise suppression systems

#71
20170284413
2017-10-05

Centrifugal blower

#72
20170234323
2017-08-17

Centrifugal blower wheel for HVACR applications

#73
20170066302
2017-03-09

Air guide housing and ventilation, heating or air conditioning system with such an air guide housing

#74
20170059204
2017-03-02

CENTRIFICAL BLOWER AND HEATING ELEMENT APPARATUS

#75
20170058914
2017-03-02

Centrifugal fan

#76
20170051749
2017-02-23

Air blower and air conditioner having the same

#77
20160355069
2016-12-08

Suction pulser intended for a heating, ventilation and/or air-conditioning device of a motor vehicle

#78
20160319844
2016-11-03

Noise suppression system

#79
20160153468
2016-06-02

THIN FAN AND MANUFACTURING METHOD THEREOF

#80
20160053760
2016-02-25

Housing for a fan of a scroll compressor

#81
20150337855
2015-11-26

INSTALLATION STRUCTURE FOR DRIVE MOTOR OF DOUBLE SUCTION BLOWER

#82
20150275901
2015-10-01

HEAT DISSIPATING MODULE FOR ELECTRONIC DEVICE

#83
20150260198
2015-09-17

Method to reduce entrance losses to increase fan inlet flow and reduce acoustic noise

#84
20150252817
2015-09-10

Blower housing

#85
20150240835
2015-08-27

Thin fan with axial airgap

#86
20150192145
2015-07-09

COOLING FAN APPARATUS

#87
20150110615
2015-04-23

Centrifugal fan

#88
20150108364
2015-04-23

Charged particle emission device and air-blowing device

#89
20150016979
2015-01-15

Sirocco fan and air conditioner having same

#90
20140293539
2014-10-02

Fan and electronic apparatus

#91
20140286800
2014-09-25

Centrifugal fan and air conditioner having the same

#92
20140271134
2014-09-18

Noise suppression systems

#93
20140271132
2014-09-18

Noise suppression system

#94
20140219834
2014-08-07

Blower fan

#95
20140216460
2014-08-07

Impeller and motor assembly

#96
20140133974
2014-05-15

Cooling fan and cooling device with cooling fan

#97
20140119909
2014-05-01

Fan module

#98
20130343865
2013-12-26

Blower housing

#99
20130156616
2013-06-20

Thin fan and manufacturing method thereof

#100
20130101451
2013-04-25

Double inlet centrifugal blower with a solid center plate

#101
20120247739
2012-10-04

ELECTRONIC DEVICE AND FAN

#102
20120207593
2012-08-16

Blower unit

#103
20120148393
2012-06-14

Centrifugal fan

#104
20120125572
2012-05-24

COOLING DEVICE

#105
20120107157
2012-05-03

AIR PUMP HAVING AN IMPELLER WITH DOUBLE-SIDED BLADES

#106
20110150651
2011-06-23

CENTRIFUGAL FAN

#107
20100254826
2010-10-07

Radial blower

#108
20100232948
2010-09-16

Fan Housing

#109
20090163133
2009-06-25

Hollow space aerating device

#110
20090129919
2009-05-21

Multi-blade centrifugal fan

#111
20090053053
2009-02-26

Blower

#112
20080117594
2008-05-22

Thermal module with centrifugal blower and electronic assembly incorporating the same

#113
20080107523
2008-05-08

Blower

#114
20070280818
2007-12-06

Heat-Dissipating Fan

#115
20070194668
2007-08-23

Centrifugal fan

#116
20070113551
2007-05-24

Inlet duct for rearward-facing compressor wheel, and turbocharger incorporating same

#117
20060285967
2006-12-21

Blower for air conditioner of automotive vehicles

#118
20060198741
2006-09-07

Air pump with air flow control

#119
20060093472
2006-05-04

Blower structure

#120
20060078428
2006-04-13

Bi-directional blowers for cooling computers

#121
20060078424
2006-04-13

Electric fan

#122
20060078423
2006-04-13

Bi-directional Blowers for Cooling Laptop Computers

#123
20060073043
2006-04-06

Fan device for removing heat from heat sources

#124
20060062668
2006-03-23

Two-suction turbine fan device

#125
20060024160
2006-02-02

Centrifugal blower having auxiliary radial inlet

#126
20050163607
2005-07-28

Blower with double inlet wheel

#127
20050162828
2005-07-28

Heat dissipating system of personal computer

#128
19017949
2025-10-28

Centrifugal fan

#129
18456504
2024-08-27

Head mechanism and fan apparatus

#130
18167924
2023-07-18

Neck-hanging fan