ClassID:

158204

F24F2003/1435 - 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 characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification comprising semi-permeable membrane

Recent Application in this class:
#1
20260049726
2026-02-19

AIR CONDITIONING MASS TRANSFER ASSEMBLIES WITH DIRECTED LIQUID DESICCANT FLOW

#2
20260002679
2026-01-01

METHOD AND SYSTEM FOR DEHUMIDIFICATION AND ATMOSPHERIC WATER EXTRACTION WITH MINIMAL ENERGY CONSUMPTION

#3
20250389433
2025-12-25

MEMBRANE-CONTACTOR-BASED AIR CONDITIONER

#4
20250283616
2025-09-11

LAYERED BODY FOR HUMDIFICATION AND HUMIDIFIER

#5
20250277594
2025-09-04

LAMINATE FOR HUMIDIFICATION, AND HUMIDIFIER

#6
20250251173
2025-08-07

DEHUMIDIFIER

#7
20250207815
2025-06-26

Liquid Desiccant Air Conditioner Modules Having A Liquid Desiccant Mist Trap

#8
20250207814
2025-06-26

Liquid Desiccant Air Conditioner Modules Having Interlocking Panels For Controlling Airflow

#9
20250207791
2025-06-26

Multi-Stage Liquid Desiccant Dehumidification Systems and Methods

#10
20250085005
2025-03-13

LIQUID-TO-AIR MEMBRANE ENERGY EXCHANGER

#11
20250073636
2025-03-06

Membrane-based processing for ambient water-group species captured on the Moon and in space

#12
20240240809
2024-07-18

ADSORPTION RADIANT AIR-CONDITIONING SYSTEM COMPRISING VACUUM DEHUMIDIFICATION AND HIGH-TEMPERATURE COOLING

#13
20240210047
2024-06-27

LIQUID-DESICCANT STACK WITH INTEGRATED FLUID DISTRIBUTION

#14
20240183547
2024-06-06

METHOD AND SYSTEM FOR DEHUMIDIFICATION AND ATMOSPHERIC WATER EXTRACTION WITH MINIMAL ENERGY CONSUMPTION

#15
20240110712
2024-04-04

Systems and methods for air dehumidification in an enclosed space

#16
20240027094
2024-01-25

USING LIQUID TO AIR MEMBRANE ENERGY EXCHANGER FOR LIQUID COOLING

#17
20240027083
2024-01-25

DESICCANT ENHANCED EVAPORATIVE COOLING SYSTEMS AND METHODS

#18
20240011650
2024-01-11

MEMBRANE-CONTACTOR-BASED AIR CONDITIONER

#19
20230392872
2023-12-07

LIQUID PANEL ASSEMBLY

#20
20230341136
2023-10-26

Air-Cooling System

#21
20230243526
2023-08-03

Enthalpy exchanger

#22
20230243525
2023-08-03

VAPOR-SELECTIVE NANOSTRUCTURED MEMBRANE HEAT EXCHANGERS FOR COOLING AND DEHUMIDIFICATION

#23
20230175712
2023-06-08

Dehumidification System

#24
20230135067
2023-05-04

Integrated desiccant-based cooling and dehumidification

#25
20220387927
2022-12-08

Air conditioning systems based on membranes

#26
20220379264
2022-12-01

Hydrophobic barrier layer for ceramic indirect evaporative cooling systems

#27
20220305446
2022-09-29

SELECTIVELY PERMEABLE POLYMERIC MEMBRANE

#28
20220290877
2022-09-15

Reversible water-absorbing constructs comprising phase-change polymer filaments

#29
20220252285
2022-08-11

Membrane-contactor-based air conditioner

#30
20220196263
2022-06-23

Integrated desiccant-based cooling and dehumidification

#31
20220113041
2022-04-14

Gas conditioner

#32
20220003436
2022-01-06

Liquid-to-air membrane energy exchanger

#33
20210402356
2021-12-30

Enthalpy exchanger element, enthalpy exchanger comprising such elements and method for their production

#34
20210396422
2021-12-23

Using liquid to air membrane energy exchanger for liquid cooling

#35
20210332993
2021-10-28

Energy exchange system for conditioning air in an enclosed structure

#36
20210316249
2021-10-14

Membrane device for water and energy exchange

#37
20210308625
2021-10-07

Hydrophobic barrier layer for ceramic indirect evaporative cooling systems

#38
20210231384
2021-07-29

Liquid panel assembly

#39
20210162353
2021-06-03

MIXED MATRIX MEMBRANE WITH GRAPHENE OXIDE AND POLYETHER AMIDE POLYMER FOR DEHYDRATION OF GAS

#40
20210140654
2021-05-13

System and method for dehumidification of air by liquid desiccant across membrane

#41
20210108807
2021-04-15

Enthalpy exchanger

#42
20210055010
2021-02-25

Method and system for dehumidification and atmospheric water extraction with minimal energy consumption

#43
20200393145
2020-12-17

Integrated desiccant-based cooling and dehumidification

#44
20200386421
2020-12-10

Liquid desiccant air conditioning systems and methods

#45
20200284448
2020-09-10

Air-water extraction system

#46
20200217526
2020-07-09

Dry air supply systems

#47
20200179871
2020-06-11

Dehumidifying element and dehumidifying device having same

#48
20200173672
2020-06-04

Control system and method for a liquid desiccant air delivery system

#49
20200156964
2020-05-21

Membrane-based processing for ambient water-group species captured on the moon and in space

#50
20200141593
2020-05-07

Methods and systems for turbulent, corrosion resistant heat exchangers

#51
20200096241
2020-03-26

Rooftop liquid desiccant systems and methods

#52
20200096212
2020-03-26

Desiccant enhanced evaporative cooling systems and methods

#53
20200088423
2020-03-19

Vacuum sweep dehumidification system

#54
20200063995
2020-02-27

WATER RECOVERY IN DESICCANT ENHANCED EVAPORATIVE COOLING SYSTEMS

#55
20200009500
2020-01-09

Membrane device for water and energy exchange

#56
20190338966
2019-11-07

System and method for dehumidification of air by liquid desiccant across membrane

#57
20190305336
2019-10-03

Flow plate for a humidifier

#58
20190285289
2019-09-19

COUNTER-FLOW ENERGY RECOVERY VENTILATOR (ERV) CORE

#59
20190249886
2019-08-15

Desiccant air conditioning methods and systems using evaporative chiller

#60
20190242595
2019-08-08

System, components, and methods for air, heat, and humidity exchanger

#61
20190212020
2019-07-11

LIQUID-TO-AIR MEMBRANE ENERGY EXCHANGER

#62
20190154280
2019-05-23

Tank system for liquid desiccant air conditioning system

#63
20190113247
2019-04-18

Systems and methods for providing cooling to a heat load

#64
20190093907
2019-03-28

Blended membranes for water vapor transport and methods for preparing same

#65
20180363929
2018-12-20

Enthalpy exchanger

#66
20180328602
2018-11-15

Methods and systems for mini-split liquid desiccant air conditioning

#67
20180187918
2018-07-05

Three-fluid liquid to air membrane energy exchanger

#68
20180180307
2018-06-28

Latent and sensible cooling membrane heat pump

#69
20180172291
2018-06-21

Fan coil apparatus including a humidification unit and a humidification unit

#70
20180135880
2018-05-17

Using liquid to air membrane energy exchanger for liquid cooling

#71
20180128510
2018-05-10

Systems and methods for managing conditions in enclosed space

#72
20180051897
2018-02-22

Methods and systems for turbulent, corrosion resistant heat exchangers

#73
20180015425
2018-01-18

Enthalpy exchanger element, enthalpy exchanger comprising such elements and method for their production

#74
20170370609
2017-12-28

Enthalpy Heat Exchanger

#75
20170346110
2017-11-30

Humidifier for fuel cell systems

#76
20170321908
2017-11-09

HUMIDITY ADJUSTMENT

#77
20170292722
2017-10-12

METHODS AND SYSTEMS FOR LIQUID DESICCANT AIR CONDITIONING SYSTEM RETROFIT

#78
20170284751
2017-10-05

Membrane microgravity air conditoner

#79
20170284685
2017-10-05

Heat pumps utilizing ionic liquid desiccant

#80
20170259205
2017-09-14

Vapor separator and dehumidifier using the same

#81
20170248332
2017-08-31

Geothermal Heating, Cooling, and Dehumidification Ventilation System

#82
20170241655
2017-08-24

Liquid panel assembly

#83
20170211826
2017-07-27

Enthalpy exchanger including stacked networks and selectively permeable membranes

#84
20170205091
2017-07-20

A METHOD FOR DEHUMIDIFICATION OF AIR AND SYSTEM THERETO

#85
20170205090
2017-07-20

AIR-CONDITIONER MODULE AND USE THEREOF

#86
20170198927
2017-07-13

LAMINATE HAVING A CORRUGATED SURFACE AND AN AIR-CONDITIONER COMPRISING THE SAME

#87
20170184319
2017-06-29

Desiccant air conditioning methods and systems

#88
20170184317
2017-06-29

Blended membranes for water vapor transport and methods for preparing same

#89
20170138630
2017-05-18

HEAT EXCHANGER AND VENTILATOR

#90
20170102155
2017-04-13

In-ceiling liquid desiccant air conditioning system

#91
20170074530
2017-03-16

Indirect Evaporative Cooler Using Membrane-Contained, Liquid Desiccant for Dehumidification

#92
20170074529
2017-03-16

Vapor separator and dehumidifier using the same

#93
20170010015
2017-01-12

Humidity regulating system

#94
20170010007
2017-01-12

Dehumidification system

#95
20160339380
2016-11-24

LIQUID DESICCANT REGENERATION SYSTEM, SYSTEMS INCLUDING THE SAME, AND METHODS OF OPERATING THE SAME

#96
20160322655
2016-11-03

Moisture exchanger and fuel cell arrangement comprising same

#97
20160320079
2016-11-03

Open absorption cycle for combined dehumidification, water heating, and evaporative cooling

#98
20160298865
2016-10-13

Variable desiccant control energy exchange system and method

#99
20160290666
2016-10-06

Energy exchange system for conditioning air in an enclosed structure

#100
20160290665
2016-10-06

Desiccant air conditioning methods and systems using evaporative chiller

#101
20160290664
2016-10-06

Counter-flow energy recovery ventilator (ERV) core

#102
20160256821
2016-09-08

VERSATILE DEHUMIDIFICATION PROCESS AND APPARATUS USING A HYDROPHOBIC MEMBRANE

#103
20160187011
2016-06-30

Methods and systems for mini-split liquid desiccant air conditioning

#104
20160187010
2016-06-30

Methods and systems for desiccant air conditioning

#105
20160187009
2016-06-30

Methods and systems for desiccant air conditioning

#106
20160187008
2016-06-30

Methods and systems for turbulent, corrosion resistant heat exchangers

#107
20160138817
2016-05-19

FLEXIBLE LIQUID DESICCANT HEAT AND MASS TRANSFER PANELS

#108
20160123610
2016-05-05

HVAC systems and methods with improved humidity regulation

#109
20160123609
2016-05-05

Partition member for total heat exchange element, total heat exchange element using this member, and total heat exchange type ventilation device

#110
20160109142
2016-04-21

Rainscreen with integrated heat and moisture exchanger

#111
20160084512
2016-03-24

Liquid-to-air membrane energy exchanger

#112
20150375171
2015-12-31

Dehumidifying device and dehumidifying module

#113
20150338140
2015-11-26

Rooftop liquid desiccant systems and methods

#114
20150325868
2015-11-12

Humidifier, such as for a Fuel Cell

#115
20150323203
2015-11-12

Variable desiccant control energy exchange system and method

#116
20150211754
2015-07-30

Air-conditioning system and use thereof

#117
20150198390
2015-07-16

Partitioning member for total heat exchange element, total heat exchange element and total heat exchange ventilator using the partitioning member for total heat exchange element

#118
20150184876
2015-07-02

Methods and systems for desiccant air conditioning

#119
20150180059
2015-06-25

Humidifier for fuel cell systems

#120
20150165385
2015-06-18

Separation membrane, method for preparing the same and unit for purification

#121
20150034283
2015-02-05

Architectural heat and moisture exchange

#122
20140374929
2014-12-25

Humidity control module and humidity control apparatus

#123
20140326433
2014-11-06

Indirect evaporative cooler using membrane-contained, liquid desiccant for dehumidification

#124
20140264967
2014-09-18

Membrane contactor for dehumidification systems

#125
20140260367
2014-09-18

Control system and method for a liquid desiccant air delivery system

#126
20140245772
2014-09-04

Integrated membrane dehumidification system

#127
20140238057
2014-08-28

Regeneration air mixing for a membrane based hygroscopic material dehumidification system

#128
20140223947
2014-08-14

Dehumidification system for air conditioning

#129
20140174423
2014-06-26

Waterless humidifier for residential and commercial furnaces

#130
20140165838
2014-06-19

Air conditioning system

#131
20140150662
2014-06-05

Methods and systems for turbulent, corrosion resistant heat exchangers

#132
20140150657
2014-06-05

Methods and systems for turbulent, corrosion resistant heat exchangers

#133
20140150656
2014-06-05

Methods and systems for turbulent, corrosion resistant heat exchangers

#134
20140144318
2014-05-29

Systems and methods for multi-stage air dehumidification and cooling

#135
20140054013
2014-02-27

Liquid panel assembly

#136
20130298766
2013-11-14

Fluid treatment systems and methods using selective transfer membranes

#137
20130233514
2013-09-12

Dual air flow exchanger with enhanced heat and humidity transfers

#138
20130199220
2013-08-08

Method and device for air conditioning with humidity control

#139
20130186121
2013-07-25

Liquid-to-air membrane energy exchanger

#140
20130168046
2013-07-04

Double flow-circuit heat exchange device for periodic positive and reverse directional pumping using a bidirectional pump

#141
20130056177
2013-03-07

Energy exchange system for conditioning air in an enclosed structure

#142
20130020049
2013-01-24

ARCHITECTURAL HEAT AND MOISTURE EXCHANGE

#143
20120217661
2012-08-30

Separator roll membrane coating for fuel cell humidifier

#144
20120186281
2012-07-26

METHODS AND SYSTEMS FOR DESICCANT AIR CONDITIONING USING FLUIDS HEATED OR COOLED BY A SOLAR THERMAL SYSTEM

#145
20120181712
2012-07-19

Humidifier for fuel cell systems

#146
20120174790
2012-07-12

Water-vapor-permeable membrane, hollow-fiber membrane, and hollow-fiber membrane module

#147
20120168136
2012-07-05

TOTAL HEAT EXCHANGE ELEMENT

#148
20120152513
2012-06-21

Humidifier

#149
20120132513
2012-05-31

Desalination methods and systems

#150
20120131940
2012-05-31

Methods and systems for desiccant air conditioning with combustion contaminant filtering

#151
20120131939
2012-05-31

Methods and systems for desiccant air conditioning

#152
20120131938
2012-05-31

AIR CONDITIONING SYSTEM WITH INTEGRATED SOLAR INVERTER

#153
20120131937
2012-05-31

Methods and systems for desiccant air conditioning

#154
20120131934
2012-05-31

Water recovery methods and systems

#155
20120125581
2012-05-24

HEAT EXCHANGER AND ASSOCIATED METHODS

#156
20120125405
2012-05-24

Photovoltaic-thermal (PVT) module with storage tank and associated methods

#157
20120125031
2012-05-24

Methods and systems for desiccant air conditioning

#158
20120125021
2012-05-24

Desiccant air conditioning methods and systems using evaporative chiller

#159
20120125020
2012-05-24

METHODS AND SYSTEMS FOR DESICCANT AIR CONDITIONING USING PHOTOVOLTAIC-THERMAL (PVT) MODULES

#160
20120118155
2012-05-17

Systems and methods for multi-stage air dehumidification and cooling

#161
20120118148
2012-05-17

Systems and methods for air dehumidification and sensible cooling using a multiple stage pump

#162
20120118147
2012-05-17

Systems and methods for air dehumidification and cooling with membrane water vapor rejection

#163
20120117987
2012-05-17

System and method for efficient air dehumidification and liquid recovery with evaporative cooling

#164
20120073791
2012-03-29

Energy recovery ventilation sulfonated block copolymer laminate membrane

#165
20120061045
2012-03-15

Coated membranes for enthalpy exchange and other applications

#166
20120012290
2012-01-19

ARCHITECTURAL HEAT AND MOISTURE EXCHANGE

#167
20110185752
2011-08-04

METHOD AND DEVICE FOR PREPARING AIR TO BE SUPPLIED TO A ROOM TO A DESIRED TEMPERATURE AND A DESIRED HUMIDITY

#168
20110169177
2011-07-14

Waterless humidifier for residential and commercial furnaces

#169
20110108256
2011-05-12

Total heat exchanging element and total heat exchanger

#170
20110073290
2011-03-31

Heat exchanger for dehumidifier using liquid desiccant and dehumidifier using liquid desiccant having the same

#171
20110000842
2011-01-06

Humidifying membrane module

#172
20100319370
2010-12-23

Indirect evaporative cooler using membrane-contained, liquid desiccant for dehumidification

#173
20100227544
2010-09-09

Vent Member and Vent Structure

#174
20100203400
2010-08-12

Humidifier membrane

#175
20100151337
2010-06-17

Humidifier and fuel cell system

#176
20100122805
2010-05-20

Double flow-circuit heat exchange device for periodic positive and reverse directional pumping

#177
20100101764
2010-04-29

Double flow-circuit heat exchange device for periodic positive and reverse directional pumping

#178
20100089558
2010-04-15

Total heat exchanging element and total heat exchanger

#179
20100031817
2010-02-11

Enhanced HVAC system and method

#180
20100018393
2010-01-28

HUMIDIFICATION EXCHANGER WITH A CLEANING SYSTEM

#181
20100015483
2010-01-21

Reaction gas temperature and humidity regulating module for fuel cell stack

#182
20090325034
2009-12-31

Separator including an elastic layer for use in humidifying device, humidifying device, and fuel cell system including humidifying device

#183
20090226784
2009-09-10

Humidification system for fuel cell

#184
20090205490
2009-08-20

Method and apparatus for humidifying air with water vapor extracted from moisture-laden flue gas

#185
20090126370
2009-05-21

Thermoelectric heat pump for heat and energy recovery ventilation

#186
20090121366
2009-05-14

Humidifier

#187
20080210412
2008-09-04

Heat exchanger

#188
20080156467
2008-07-03

Folded Heat Exchanger

#189
20080156465
2008-07-03

Method For Cooling an Airflow

#190
20080141859
2008-06-19

Method for dehumidifying room air

#191
20080085437
2008-04-10

Pleated heat and humidity exchanger with flow field elements

#192
20080083231
2008-04-10

Dehumidifying and Ventilating Method and Air Conditioner Therewith

#193
20080047699
2008-02-28

Total heat exchanging element

#194
20080034966
2008-02-14

Versatile dehumidification process and apparatus

#195
20080011466
2008-01-17

Micro-cycle energy transfer systems and methods

#196
20080000243
2008-01-03

Air Conditioning System

#197
20070210463
2007-09-13

Fuel cell air humidifier

#198
20070169628
2007-07-26

Gas purifier

#199
20060222791
2006-10-05

Moisture-permeable dehumidifying capsule

#200
20060168813
2006-08-03

Heat exchanger and heat exchange ventilator

#201
20060156761
2006-07-20

Climate control system with a vapour compression circuit combined with an absorption circuit

#202
20060112826
2006-06-01

Wind passage for dehumidifying apparatus

#203
20060090650
2006-05-04

Membrane, method of making same and heat exchanger furnished with said membrane

#204
20060086125
2006-04-27

Dehumidification unit and adsorption element for use in such a dehumidification unit

#205
20060086058
2006-04-27

Dewpoint cooler designed as a frame or part thereof

#206
20060011331
2006-01-19

Heat exchanger of ventilating system

#207
20050268633
2005-12-08

Sorption cooling systems, their use in automotive cooling applications and methods relating to the same

#208
20050252982
2005-11-17

Humidifier

#209
20050241482
2005-11-03

Moisture exchange module having a bundle of moisture-permeable hollow fibre membranes

#210
20050236138
2005-10-27

Heat exchanger

#211
20050221133
2005-10-06

Fuel cell-use humidifier

#212
20050158198
2005-07-21

Micro-cycle energy transfer systems and methods

#213
20050116366
2005-06-02

Gas humidifier

#214
20050082045
2005-04-21

Total heat exchanging element

#215
20050072303
2005-04-07

Device for dehumidifying room air

#216
20050039467
2005-02-24

Membrane desiccation heat pump

#217
17561044
2022-11-08

Wettable media and method of making the same

#218
15264914
2017-04-25

Liquid desiccant HVAC system