ClassID:

158524

F24F2221/34 - CPC Classification

Classification description:

Details or features not otherwise provided for Heater, e.g. gas burner, electric air heater

Recent Application in this class:
#1
20260092723
2026-04-02

OUTDOOR MACHINE AND AIR CONDITIONER

#2
20260055906
2026-02-26

OUTDOOR UNIT AND HEATING AND VENTILATION APPARATUS

#3
20260036314
2026-02-05

HUMIDIFIER

#4
20260002692
2026-01-01

VENTILATION DEVICE AND AIR CONDITIONER COMPRISING SAME

#5
20250344339
2025-11-06

AIR HANDLING UNIT HAVING A HEAT SHIELD FLOW DISTRIBUTOR

#6
20250303337
2025-10-02

MOBILE PURIFICATION DEVICE HAVING HEATED FILTER FOR KILLING BIOLOGICAL SPECIES, INCLUDING COVID-19

#7
20250281867
2025-09-11

PURIFICATION DEVICE HAVING HEATED FILTER FOR KILLING BIOLOGICAL SPECIES, INCLUDING COVID-19

#8
20250257884
2025-08-14

HEAT PUMP SYSTEM WITH THE FUNCTION OF DEHUMIDIFICATION UNIT INSIDE INDOOR UNIT AND ITS CONTROLLING METHOD

#9
20250244043
2025-07-31

COMFORT CONTROL SYSTEM AND METHOD

#10
20250216110
2025-07-03

AIR CONDITIONING DEVICE

#11
20250216102
2025-07-03

Leak Sensors for a HVAC System to Detect Fuel Leaks and Methods of Operation

#12
20250088003
2025-03-13

SYNERGISTIC SYSTEM

#13
20250067462
2025-02-27

CONTROLLING A HEATER ASSEMBLY FOR AN AIR CONDITIONER UNIT UTILIZING TEMPERATURE SENSORS

#14
20250043983
2025-02-06

SMART VENT SYSTEM FOR LOCALIZED AIR QUALITY CONTROL

#15
20250020338
2025-01-16

3 in 1 Humidifier, Air-Conditioner, and Heater

#16
20250012462
2025-01-09

Condensing, Ultra-Low NOx Gas-Fired Humidifier

#17
20240344735
2024-10-17

CONSTANT TEMPERATURE AND HUMIDITY SYSTEM

#18
20240344733
2024-10-17

Modulating Preheating Device for Energy Recovery Ventillation Systems

#19
20240342335
2024-10-17

ELECTRO-IONIC DEVICES FOR IMPROVED PROTECTION FROM AIRBORNE BIOPATHOGENS

#20
20240310065
2024-09-19

Leak Sensors for a HVAC System to Detect Fuel Leaks and Methods of Operation

#21
20240280279
2024-08-22

Systems and Methods for Air Handler Systems with a Backwards Curved Centrifugal Fan or Mixed Flow Fan

#22
20240125511
2024-04-18

HVAC CONDENSATE EVAPORATION AND AEROBIC DISPERSION SYSTEMS

#23
20240085033
2024-03-14

Dedicated Outdoor Air System Configuration Systems and Methods

#24
20240044526
2024-02-08

AIR CONDITIONER UNITS AND HEATING ELEMENTS THEREOF

#25
20240027081
2024-01-25

FUEL AGNOSTIC HEATING, VENTILATION, AIR CONDITIONING AND ELECTRICAL POWER GENERATION (HVAC-P) SYSTEM

#26
20240019169
2024-01-18

OUTDOOR UNIT OF AIRCONDITIONER

#27
20230417428
2023-12-28

Equipment Cover

#28
20230400205
2023-12-14

AIR QUALITY ENHANCEMENT SYSTEM BASED ON FLUID MECHANICS AND INTEGRATED UV EMISSION

#29
20230375209
2023-11-23

HYDRAULIC MODULE CONTROL SYSTEM OF FLOOR HEATING MULTI-SPLIT AIR CONDITIONER AND CONTROL METHOD THEREOF

#30
20230356133
2023-11-09

Mobile Purification Device Having Heated Filter for Killing Biological Species, Including COVID-19

#31
20230341137
2023-10-26

DEVICE FOR HEATING AND/OR COOLING A BUILDING

#32
20230151998
2023-05-18

System, apparatus and hybrid VAV device with multiple heating coils

#33
20230136014
2023-05-04

PROCESS AND APPARATUS FOR THREE-STAGE BIOLOGICAL PARTICULATE ELIMINATOR

#34
20230129818
2023-04-27

Orientation-based HVAC control

#35
20230102633
2023-03-30

Electro-ionic devices for improved protection from airborne biopathogens

#36
20230094692
2023-03-30

SMART VENT SYSTEM FOR LOCALIZED AIR QUALITY CONTROL

#37
20230094157
2023-03-30

Electro-ionic devices for improved protection from airborne biopathogens

#38
20230092050
2023-03-23

Air conditioner

#39
20230073117
2023-03-09

System and method for operating an air conditioner unit having an auxiliary electric heater

#40
20220412603
2022-12-29

AIR CONDITIONER

#41
20220404041
2022-12-22

Condensing, ultra-low NOx gas-fired humidifier

#42
20220397302
2022-12-15

Systems and methods for localized heating, ventilation, and air conditioning

#43
20220390126
2022-12-08

Air to air heat pump with heat recovery function and exhaust air humidity for heating ventilation and air conditioning systems

#44
20220357058
2022-11-10

FAN FILTER UNIT WITH INTEGRATED HEATER

#45
20220316754
2022-10-06

HEAT EXCHANGER ARRANGEMENT FOR HVAC SYSTEM

#46
20220290879
2022-09-15

Multi-zone chilled beam system and method with pump module

#47
20220221166
2022-07-14

HUMIDIFYING UNIT

#48
20220205654
2022-06-30

DEHUMIDIFICATION SYSTEM

#49
20220205648
2022-06-30

Orientation-based HVAC control

#50
20220049857
2022-02-17

Outdoor unit of air-conditioning apparatus

#51
20220049855
2022-02-17

Systems for temperature measurement and control of indoor thermal environment generated by infrared heat panels

#52
20220011013
2022-01-13

DISPLACEMENT INDUCTION ENVIRONMENTAL SANITIZING CONTROL SYSTEM

#53
20210372638
2021-12-02

THERMO ELECTRIC HEATING ASSEMBLY/ELEMENT FOR FORCED AIR RESIDENTIAL AND COMMERCIAL AIR-CONDITIONING AND FURNACES, POWERED BY CVD GENERATED 3D CNT GRAPHENE FILM

#54
20210361075
2021-11-25

VENTILATION MANAGEMENT SYSTEM FOR AN OUTDOOR PRODUCT, A SLEEPING BAG, AND A CHAIR

#55
20210339184
2021-11-04

Mobile Purification Device Having Heated Filter for Killing Biological Species, Including COVID-19

#56
20210339183
2021-11-04

Purification Device Having Heated Filter for Killing Biological Species, Including COVID-19

#57
20210318012
2021-10-14

Air conditioning system

#58
20210318005
2021-10-14

Air duct device and air handling apparatus

#59
20210254843
2021-08-19

Condensation control system and related method

#60
20210231321
2021-07-29

HEATED CABINETS, SYSTEMS INCLUDING THE SAME, AND METHODS OF USING

#61
20210222899
2021-07-22

Method and device for controlling electric heating of air conditioner compressor

#62
20210207847
2021-07-08

Flow generating device

#63
20210199311
2021-07-01

AIR-CONDITIONING AND AIR-CLEANING EQUIPMENT

#64
20210190365
2021-06-24

Method, System and Temperature Control of a Heating, Ventilation and Air Conditioning Unit

#65
20210164685
2021-06-03

Method and apparatus for controlling heating operation of air conditioner

#66
20210140655
2021-05-13

Air handling system with integrated air treatment

#67
20210108810
2021-04-15

Method and apparatus for air treatment employing catalyst material

#68
20210063047
2021-03-04

HVAC condensate evaporation and aerobic dispersion systems

#69
20210033304
2021-02-04

Blow through direct fired heating, A/C and ERV

#70
20210018218
2021-01-21

Protective housing structure

#71
20200326087
2020-10-15

Heat exchange unit and air-conditioning apparatus

#72
20200309402
2020-10-01

Electric heater package for HVAC unit

#73
20200284445
2020-09-10

Drainage tray for a heat pump

#74
20200214191
2020-07-09

Multi-factor furnace and heat pump control system

#75
20200191434
2020-06-18

Convection fan cover

#76
20200141608
2020-05-07

Smart vent system for localized air quality control

#77
20200132320
2020-04-30

Detecting blockage of air conditioner unit based on control signal

#78
20190323730
2019-10-24

Air conditioner

#79
20190313493
2019-10-10

Integration of LED lighting with building controls

#80
20190309983
2019-10-10

HVAC actuator with heating apparatus

#81
20190226699
2019-07-25

Condensing, ultra-low NOx gas-fired humidifier

#82
20190195514
2019-06-27

Common venting system for heating, cooling and domestic hot water systems

#83
20190186762
2019-06-20

AIR HANDLING SYSTEM WITH INTEGRATED TREATMENT

#84
20190145642
2019-05-16

Forced air conditioning system

#85
20190128554
2019-05-02

System and method of adjusting compressor modulation range based on balance point detection of the conditioned space

#86
20190078805
2019-03-14

Condensation control system and related method

#87
20190056134
2019-02-21

Ventilator, and defrosting method

#88
20190049135
2019-02-14

Air conditioner blowing temperature estimation apparatus and computer-readable recording medium

#89
20190017753
2019-01-17

Heat exchanger tube

#90
20180356124
2018-12-13

MOVABLE HEAT EXCHANGER

#91
20180356110
2018-12-13

Air conditioning capable of controlling ventilation and humidity, and control method therefor

#92
20180328603
2018-11-15

Air conditioner capable of controlling heating and humidity, and control method therefor

#93
20180320920
2018-11-08

Air conditioning apparatus

#94
20180313574
2018-11-01

Heat source integrated air conditioner

#95
20180299166
2018-10-18

Blow through direct fired heating, A/C and ERV

#96
20180259200
2018-09-13

Drainage tray for a heat pump

#97
20180106026
2018-04-19

Washstand cabinet

#98
20180087786
2018-03-29

ENERGY MANAGEMENT APPARATUS, SYSTEM AND METHOD

#99
20180066867
2018-03-08

Bathroom management apparatus

#100
20180066864
2018-03-08

Optimized low power air circulation in HVAC systems

#101
20180066855
2018-03-08

Bathroom management apparatus

#102
20180031275
2018-02-01

HVAC furnace condensate removal system

#103
20170356669
2017-12-14

HVAC control system with user interface provided by a mobile wireless device

#104
20170333935
2017-11-23

Multi function ductless folding utility enclosure

#105
20170328584
2017-11-16

AIR-CONDITIONER CONTROL SYSTEM AND CONTROL METHOD FOR AIR CONDITIONER

#106
20170284698
2017-10-05

Systems and methods to detect heater malfunction and prevent dry burning

#107
20170276384
2017-09-28

Modular assembly for regulating moisture and temperature of content in a container

#108
20170191678
2017-07-06

Environment control system and devices

#109
20170176027
2017-06-22

Variable refrigerant package

#110
20170122614
2017-05-04

Integration of LED lighting with building controls

#111
20170122577
2017-05-04

Displacement-induction neutral wall air terminal unit

#112
20170122576
2017-05-04

Gas fired modular blower control and associated methodology

#113
20170108239
2017-04-20

Air mixing device

#114
20170108233
2017-04-20

Portable solar HVAC system with all-in-one appliances

#115
20170089606
2017-03-30

Networked filter condition indicator

#116
20170045242
2017-02-16

Hybrid heat pump apparatus

#117
20170034958
2017-02-02

Electrical equipment housing

#118
20170016645
2017-01-19

Method and systems for energy-saving heating and humidifying of buildings using outside air

#119
20160363333
2016-12-15

AIR HANDLING SYSTEM WITH INTEGRATED AIR TREATMENT

#120
20160310629
2016-10-27

Anti-Microbial Air Processor for a Personal Patient-Warming Apparatus

#121
20160265801
2016-09-15

Air conditioner and control program

#122
20160138825
2016-05-19

Outdoor unit for air-conditioning apparatus

#123
20160061501
2016-03-03

Air conditioner heater control based on power supply cord parameters

#124
20160061465
2016-03-03

Air conditioner unit and method for operating same

#125
20160061464
2016-03-03

Air conditioner unit including a heating unit

#126
20150362213
2015-12-17

Blow through direct fired heating, A/C and ERV

#127
20150300668
2015-10-22

Air conditioning apparatus

#128
20150211765
2015-07-30

Method of attaching electrodes to plated thermoset plastic heated blower housing

#129
20150075203
2015-03-19

Outdoor unit and air-conditioning apparatus

#130
20150033776
2015-02-05

HVAC system subcooler

#131
20140374065
2014-12-25

Energy recovery ventilator

#132
20140252100
2014-09-11

Gas fired modular blower control and associated methodology

#133
20140169771
2014-06-19

Heating and ventilating fan

#134
20140165640
2014-06-19

Outdoor unit of air-conditioning apparatus

#135
20140151364
2014-06-05

Hybrid heater assembly with heating elements having different wattage densities

#136
20140113543
2014-04-24

Mixer for mixing air flows

#137
20130340448
2013-12-26

Electric re-heat dehumidification

#138
20130333567
2013-12-19

Air treatment apparatus and systems comprised thereof

#139
20130280099
2013-10-24

Fan assembly

#140
20130205824
2013-08-15

Heat pump device

#141
20130004299
2013-01-03

Heating and ventilation fan for bathroom

#142
20120270494
2012-10-25

Displacement-induction neutral wall air terminal unit

#143
20120248991
2012-10-04

Integration of LED lighting with building controls

#144
20120205077
2012-08-16

HVAC system with multipurpose cabinet for auxiliary heat transfer components

#145
20120183283
2012-07-19

Air dehumidifier system for enclosures and safes

#146
20120031509
2012-02-09

Fan assembly

#147
20110303755
2011-12-15

AIR CONDITIONING DEVICE

#148
20110283986
2011-11-24

Apparatus for Improved Efficiency of an Air Conversion Device

#149
20110192180
2011-08-11

Frost protection system for condensate drain pipe

#150
20110159795
2011-06-30

Outdoor electronic equipment enclosures and related methods

#151
20110146651
2011-06-23

Altitude adjustment for heating, ventilating and air conditioning systems

#152
20110143643
2011-06-16

Vent port for a refrigerated cabinet

#153
20110123181
2011-05-26

Air conditioner having positive temperature coefficient heater

#154
20110123180
2011-05-26

Air conditioner with positive temperature coefficient heaters

#155
20110114740
2011-05-19

HUMIDITY CONTROL APPARATUS

#156
20110016903
2011-01-27

Impedance Heating for Heat Exchanger Water Drainage Channels

#157
20100224347
2010-09-09

Heat Exchanger

#158
20100107673
2010-05-06

Dehumidification/humidification device for vehicle

#159
20100106306
2010-04-29

Integration of LED lighting with building controls

#160
20100068984
2010-03-18

Ventilation System and Method

#161
20090209193
2009-08-20

HEATING, VENTILATING AND AIR CONDITIONING (HVAC) SYSTEM FOR RECREATIONAL VEHICLES

#162
20090171862
2009-07-02

ENERGY CONTROL SYSTEM

#163
20090170421
2009-07-02

GRILLE

#164
20090125150
2009-05-14

System and method for control of heat system operation by changing a switching set point of operation

#165
20090096118
2009-04-16

Portable heater and humidifier apparatus

#166
20090012652
2009-01-08

Duct heater control module

#167
20080200112
2008-08-21

Supply air terminal device

#168
20070277540
2007-12-06

Dehumidifying System

#169
20070264922
2007-11-15

Air handling system

#170
20070187076
2007-08-16

Sound attenuating shield for an electric heater

#171
20060273183
2006-12-07

Method of dehumidifying an indoor space using outdoor air

#172
20060254297
2006-11-16

Air conditioner with a light wave unit for auxiliary heating and sterilizing

#173
20060189270
2006-08-24

Pressurizing buildings to improve drying

#174
20060168974
2006-08-03

Self contained humidity control system for forced air duct system

#175
20060123812
2006-06-15

Humidity control system

#176
20060122733
2006-06-08

Method and apparatus to prevent low temperature damage using an HVAC control

#177
20050234597
2005-10-20

Method and apparatus to prevent low temperature damage using an HVAC control

#178
20050150239
2005-07-14

Real temperature output air conditioner

#179
20050147400
2005-07-07

Air conditioning apparatus with blower and electric heater in common housing

#180
18230814
2025-10-14

Methods and apparatus for a habitable electronic material system

#181
18074465
2025-11-11

Thermal convection conversion system

#182
15696028
2024-09-03

Continuously variable chiller and control systems, methods, and apparatuses

#183
15229500
2018-11-27

Integrated venturi heating elements for air curtains