Patents-Review.com
ClassID:

158467 ⎘

F24F2013/247 - CPC Classification

Classification description:

Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening; Means for preventing or suppressing noise Active noise-suppression

Recent Application in this class:
#1
20250383103
2025-12-18

ROOM AIR CLEANER WITH LOW-PRESSURE FILTER

 #2
20250216093
2025-07-03

INDOOR UNIT AND AIR CONDITIONER

 #3
20230400220
2023-12-14

Noise cancellation based on airflow generator operational speed

 #4
20220146121
2022-05-12

Saddle-type window air conditioner

 #5
20210388996
2021-12-16

Air conditioning compressor sound attenuation

 #6
20210302062
2021-09-30

INDUCTION UNIT

 #7
20210293448
2021-09-23

HVAC SYSTEM INCLUDING SOUND WAVE GENERATOR

 #8
20210262678
2021-08-26

Vertical humidifier with stepped evaporator

 #9
20210080126
2021-03-18

System and method for generating white noise using a packaged terminal air conditioner unit

 #10
20210003316
2021-01-07

Air-conditioning apparatus

 #11
20200277960
2020-09-03

Air conditioner

 #12
20200191415
2020-06-18

Air conditioning compressor sound attenuation

 #13
20200072494
2020-03-05

Sound suppression chamber for an HVAC air handling assembly

 #14
20190383505
2019-12-19

Window-type smart air purifying ventilator

 #15
20190376724
2019-12-12

LOW NOISE RETROFIT DAMPER SYSTEM

 #16
20190337357
2019-11-07

Ventilation device for an interior of a motor vehicle and method for operating a ventilation device of this kind

 #17
20190257549
2019-08-22

Blast valve utilizing an aerodynamically configured blade

 #18
20190249891
2019-08-15

Measuring system

 #19
20190219287
2019-07-18

CAP FOR PREVENTING WATER SPLASHING OF FLOATING TYPE HUMIDIFIER

 #20
20190030996
2019-01-31

Air vent structure

 #21
20180320925
2018-11-08

APPARATUS FOR NATURAL VENTILATION OF A ROOM

 #22
20180313571
2018-11-01

UNIT FOR THE NATURAL VENTILATION OF A ROOM, PROVIDED WITH A SOUND ABSORBER

 #23
20180301136
2018-10-18

Electrical power generator with active noise cancellation in ventilation ducts

 #24
20180135864
2018-05-17

Signal processing device, signal processing method, program, and rangehood apparatus

 #25
20170276398
2017-09-28

Signal processing device, program, range hood device, and selection method for frequency bins in signal processing device

 #26
20170122616
2017-05-04

SMART MULTI-FUNCTIONAL CEILING UNIT

 #27
20170122340
2017-05-04

Storage system with noise reduction

 #28
20170045261
2017-02-16

Air conditioner and method of operating the same

 #29
20160372106
2016-12-22

Signal processing device, program, and range hood system

 #30
20150369514
2015-12-24

Adjustable Noise Attenuation Device for Use in Blow Through Air Handler/Furnace with Mixed Flow Blower Wheel

 #31
20150253034
2015-09-10

Air-conditioning apparatus provided with a vacuum chamber

 #32
20140023200
2014-01-23

Air conditioning unit

 #33
20130168064
2013-07-04

Air-conditioning indoor unit with axial fans and heat exchanger partition

 #34
20120312629
2012-12-13

Expandable chamber acoustic silencer

 #35
20120210741
2012-08-23

Noise control system, and fan structure and outdoor unit of air-conditioning-apparatus each equipped therewith

 #36
20120171947
2012-07-05

Air conditioner

 #37
20120164931
2012-06-28

Operational noise control method for air conditioner

 #38
20120018117
2012-01-26

Indoor unit of air conditioner and air conditioner including a heat exchanger on a downstream side of a blower

 #39
20110308883
2011-12-22

Acoustic noise control in heating or cooling systems

 #40
20110051946
2011-03-03

Air conditioner with integrated sound system

 #41
20100028134
2010-02-04

Quiet fan incorporating active noise control (ANC)

 #42
20080187147
2008-08-07

Noise reduction systems and methods

 #43
20080095620
2008-04-24

Sync method for reducing fan noise

 #44
14885964
2018-08-07

Noise reduction system for in-wall HVAC systems