ClassID:

158183

F24F3/0442 - CPC Classification

Classification description:

Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems; Systems in which all treatment is given in the central station, i.e. all-air systems with volume control at a constant temperature

Sub-classes:
Recent Application in this class:
#1
20260009558
2026-01-08

HOUSING OF AN HVAC SYSTEM

#2
20250341320
2025-11-06

MULTI-ZONE VARIABLE REFRIGERANT FLOW HEATING/COOLING UNIT

#3
20240060662
2024-02-22

AIR HANDLING SYSTEM WITH INTEGRATED AIR TREATMENT

#4
20230296270
2023-09-21

MULTI-ZONE VARIABLE REFRIGERANT FLOW HEATING/COOLING UNIT

#5
20230191309
2023-06-22

METHOD AND SYSTEM FOR IMPROVED-EFFICIENCY AIR-CONDITIONING

#6
20230063806
2023-03-02

SINGLE ZONE VARIABLE AIR VOLUME CONTROL SYSTEMS AND METHODS

#7
20220412596
2022-12-29

ZONING SYSTEM FOR AIR CONDITIONING (HVAC) EQUIPMENT

#8
20220252289
2022-08-11

Personal comfort variable air volume diffuser

#9
20220099333
2022-03-31

HOUSING OF AN HVAC SYSTEM

#10
20210310685
2021-10-07

Air conditioning system

#11
20210215379
2021-07-15

Method and a system for performing calibration of variable air volume (VAV) units

#12
20210187431
2021-06-24

METHOD AND SYSTEM FOR IMPROVED-EFFICIENCY AIR-CONDITIONING

#13
20210140655
2021-05-13

Air handling system with integrated air treatment

#14
20210131680
2021-05-06

Limiting operation of a HVAC system for low-noise municipalities

#15
20210123614
2021-04-29

Multi-zone variable refrigerant flow heating/cooling unit

#16
20200340704
2020-10-29

Zoning system for air conditioning (HVAC) equipment

#17
20200318854
2020-10-08

Air handling unit and method for controlling a flow of air therethrough

#18
20200292188
2020-09-17

Personal comfort variable air volume diffuser

#19
20200208856
2020-07-02

Discharge air reset for a constant volume air changeover bypass

#20
20200149753
2020-05-14

AIR CONTROL SYSTEM FOR A BUILDING

#21
20190390865
2019-12-26

Configuring flow paths of an HVAC system

#22
20190323719
2019-10-24

Ducted Heating and Cooling System

#23
20190262761
2019-08-29

Method and system for improved-efficiency air-conditioning

#24
20190219280
2019-07-18

Limiting operation of a HVAC system for low-noise municipalities

#25
20190186762
2019-06-20

AIR HANDLING SYSTEM WITH INTEGRATED TREATMENT

#26
20190154283
2019-05-23

COMPACT AIR HANDLER WITH MULTIPLE FANS

#27
20190086103
2019-03-21

Air Handling Unit With Inner Wall Space

#28
20190032930
2019-01-31

Multi-zone variable refrigerant flow heating/cooling unit

#29
20180373278
2018-12-27

Single zone variable air volume control systems and methods

#30
20180306456
2018-10-25

Personal comfort variable air volume diffuser

#31
20180224153
2018-08-09

Air conditioning housing system

#32
20180224147
2018-08-09

Chiller plant

#33
20180119981
2018-05-03

INTEGRATED VENTILATION UNIT

#34
20180080678
2018-03-22

Panel for an air handling unit, method for assembling such a panel, and air handling unit including such a panel

#35
20180080677
2018-03-22

Panel for a module of an air handling unit

#36
20180038614
2018-02-08

Sound attenuating air handler panel apparatus and method

#37
20180003399
2018-01-04

Variable refrigerant flow (VRF) air conditioning and related methods

#38
20170318705
2017-11-02

Method and arrangement for air-conditioning a cold aisle

#39
20170159960
2017-06-08

Fan array control system

#40
20170138623
2017-05-18

Zonal demand control ventilation for a building

#41
20170138619
2017-05-18

Multi-zone variable refrigerant flow heating/cooling unit

#42
20170087743
2017-03-30

Monitoring discharge pressure on concrete mix load

#43
20160363333
2016-12-15

AIR HANDLING SYSTEM WITH INTEGRATED AIR TREATMENT

#44
20160327287
2016-11-10

Multi-zone variable refrigerant flow heating/cooling unit

#45
20160223221
2016-08-04

Air handling unit and method for controlling a flow of air therethrough

#46
20160169540
2016-06-16

Methods for operating and constructing a blow through air handler

#47
20160131381
2016-05-12

Method for controlling operation of an HVAC system

#48
20160047567
2016-02-18

System and method for climate control in a building

#49
20150377499
2015-12-31

Conditioning plant

#50
20150375157
2015-12-31

Method and system for improve-efficiency air-conditioning

#51
20150258488
2015-09-17

Air handling system with integrated air treatment

#52
20150198350
2015-07-16

Integrated ventilation unit

#53
20150066222
2015-03-05

Regulation method for regulating an air conditioning system

#54
20150023728
2015-01-22

Cabinet for air handler units

#55
20140303789
2014-10-09

Automated technique of measuring room air change rates in HVAC system

#56
20140260408
2014-09-18

Compact air handler with multiple fans

#57
20140050518
2014-02-20

System for mounting objects to polymeric membranes

#58
20140044477
2014-02-13

System for mounting objects to polymeric membranes

#59
20130304259
2013-11-14

Airflow and water balancing

#60
20130303073
2013-11-14

Air handling system and methods of operating same

#61
20130118830
2013-05-16

Sound-absorptive panel for an air handling system

#62
20130090769
2013-04-11

METHODS OF OPERATING AN HVAC SYSTEM, AN HVAC SYSTEM AND A CONTROLLER THEREFOR EMPLOYING A SELF-CHECK SCHEME AND PREDETERMINED OPERATING PROCEDURES ASSOCIATED WITH OPERATING UNITS OF AN HVAC SYSTEM

#63
20130043319
2013-02-21

Arrangement and method for automatically determined time constant for a control device

#64
20120273980
2012-11-01

Method and system for improved-efficiency air-conditioning

#65
20120238199
2012-09-20

AIR CONDITIONING EQUIPMENT FOR AIR-RETURN AREA OR ROOM BY USING DAMPER-DIFFUSER INTEGRATED MOTORIZED DIFFUSER

#66
20120205078
2012-08-16

Cuboidal housing for accommodating components of air-conditioning or ventilation system

#67
20120190287
2012-07-26

AIR HANDLING SYSTEM FOR CLEAN ROOM

#68
20120186289
2012-07-26

Shipping and installation for heating, ventilation, and air conditioning (HVAC)

#69
20120168133
2012-07-05

Compact air handler system

#70
20120138208
2012-06-07

System for mounting objects to polymeric membranes

#71
20120131935
2012-05-31

AIR CONDITIONER AND METHOD FOR OPERATING SAME

#72
20120131933
2012-05-31

Method of conditioning air with a refrigeration loop connected to a water circuit

#73
20120118986
2012-05-17

CONTROLLING DEVICE AND METHOD

#74
20120090826
2012-04-19

Conditioning plant

#75
20120037714
2012-02-16

Air-conditioning apparatus

#76
20120037345
2012-02-16

Air treatment module

#77
20110308265
2011-12-22

Integrated ventilation unit

#78
20110265648
2011-11-03

Method and system for improved-efficiency air-conditioning

#79
20110240207
2011-10-06

System for mounting objects to polymeric membranes

#80
20110237177
2011-09-29

Modular air handling unit

#81
20110232860
2011-09-29

Air handling unit with inner wall space

#82
20110204195
2011-08-25

Method and system for mounting objects to polymeric membranes

#83
20110162779
2011-07-07

Method of mounting objects to polymeric membranes

#84
20110146651
2011-06-23

Altitude adjustment for heating, ventilating and air conditioning systems

#85
20110061788
2011-03-17

System for mounting objects to polymeric membranes

#86
20110031322
2011-02-10

Multiple zone climate control system

#87
20110014061
2011-01-20

Fan array control system

#88
20100326624
2010-12-30

Blow through air handler

#89
20100282076
2010-11-11

Runtime sensor for small forced air handling units

#90
20100252641
2010-10-07

Shipping and installation for heating, ventilation, and air conditioning (HVAC)

#91
20100112930
2010-05-06

Roof assembly for an air handler

#92
20100031686
2010-02-11

Modular outboard heat exchanger air conditioning system

#93
20100029195
2010-02-04

AIR HANDLING UNIT USING MULTIPLE FANS

#94
20090170420
2009-07-02

AIR HANDLING UNIT

#95
20090126285
2009-05-21

Facility Module for Production and Storage of Cell Therapy Product

#96
20090065595
2009-03-12

SYSTEM AND METHOD FOR ZONE HEATING AND COOLING USING CONTROLLABLE SUPPLY AND RETURN VENTS

#97
20090056248
2009-03-05

ENCLOSURE AND METHOD THEREFOR

#98
20080311840
2008-12-18

Air handler panels

#99
20080194195
2008-08-14

Reduced noise air conditioning and heating systems

#100
20080176505
2008-07-24

VENTILATION SYSTEM FOR HIGH-RISE STRUCTURES

#101
20080053309
2008-03-06

Air conditioning apparatus with integrated air filtration system

#102
20080004754
2008-01-03

VAV flow velocity calibration and balancing system

#103
20070290586
2007-12-20

Cabinet for an air handler unit

#104
20070204752
2007-09-06

Base construction for an air handling unit

#105
20070181701
2007-08-09

Arrangement and method for automatically determined time constant for a control device

#106
20070167126
2007-07-19

Air handling system for clean room

#107
20070151169
2007-07-05

Thermal break and panel joint for an air handling enclosure

#108
20070145160
2007-06-28

Closed air handling system with integrated damper for whole-building ventilation

#109
20070089854
2007-04-26

Energy efficient air handling system for cleanrooms

#110
20070082601
2007-04-12

Dynamic control of dilution ventilation in one-pass, critical environments

#111
20070057078
2007-03-15

Closed air handling system with integrated damper for whole-building ventilation

#112
20070052333
2007-03-08

Frame construction for an air handling unit

#113
20070037507
2007-02-15

Multi-zone air handling systems and methods with variable speed fan

#114
20070010189
2007-01-11

Housing for an air conditioning system

#115
20060272681
2006-12-07

Water coil blow down system

#116
20060249589
2006-11-09

Shipping and installation for heating, ventilation, and air conditioning (HVAC)

#117
20060237873
2006-10-26

Housing for an air handling unit and method of manufacture thereof

#118
20060234621
2006-10-19

Multipoint air sampling system having common sensors to provide blended air quality parameter information for monitoring and building control

#119
20060186213
2006-08-24

Variable capacity climate control system for multi-zone space

#120
20060091227
2006-05-04

Variable air volume system including BTU control function

#121
20050194455
2005-09-08

Energy usage estimation for climate control system

#122
20050189430
2005-09-01

Multi-zone integral face bypass coil system

#123
20050156054
2005-07-21

Continuous fan control in a multi-zone HVAC system

#124
20050156050
2005-07-21

Method and system for automatically optimizing zone duct damper positions

#125
20050155367
2005-07-21

Method and system for determining relative duct sizes by zone in an HVAC system

#126
20050155365
2005-07-21

Zone damper fault detection in an HVAC system

#127
20050116055
2005-06-02

Retrofit HVAC zone climate control system

#128
20050086972
2005-04-28

HVAC cabinet with configurable duct connections

#129
20050084324
2005-04-21

Corner cap member construction for an air handling unit

#130
20050064812
2005-03-24

System for controlling distribution of air to different zones in a forced air delivery system

#131
20050034390
2005-02-17

Raceway construction for an air handing unit

#132
20050028970
2005-02-10

Dual-compartment ventilation and air-conditioning system having a shared heating coil

#133
15460199
2017-12-05

Air conditioner controlling method