ClassID:

158623

F24H3/025 - CPC Classification

Classification description:

Air heaters with forced circulation using fluid fuel

Recent Application in this class:
#1
20260071780
2026-03-12

VARIABLE-FREQUENCY HEATER

#2
20260055928
2026-02-26

SYSTEMS AND METHODS FOR HYBRID HEATING SYSTEM CONTROL

#3
20250067474
2025-02-27

Systems and Methods for Detecting Pressure in a Gas Furnace

#4
20240344704
2024-10-17

HYBRID FIREPLACE WITH DISPLAY

#5
20230235922
2023-07-27

VARIABLE CAPACITY FURNACE

#6
20230038602
2023-02-09

Heat exchanger transfer tubes

#7
20220371395
2022-11-24

Heater

#8
20220252304
2022-08-11

Failsafe gas leak detection and mitigation system and method

#9
20220221153
2022-07-14

Firebox assembly for a gas fireplace and gas heating appliance

#10
20210270460
2021-09-02

Burner assembly having a baffle

#11
20210254860
2021-08-19

ULTRA-LOW NOx BURNER

#12
20210164693
2021-06-03

PORTABLE HEATING SYSTEM

#13
20210063025
2021-03-04

METHOD AND SYSTEM FOR PROTECTING A SINGLE-STAGE FURNACE IN A MULTI-ZONE SYSTEM

#14
20210025621
2021-01-28

GAS FURNACE

#15
20210025616
2021-01-28

Gas furnace

#16
20210018270
2021-01-21

Heat exchanger transfer tubes

#17
20200132338
2020-04-30

Parametrically optimized flameless heater system to generate heat

#18
20200072500
2020-03-05

FORCED AIR HEATER INCLUDING MULTIPLE ON-BOARD SOURCES OF ELECTRIC ENERGY

#19
20200008416
2020-01-09

Mobile heating apparatus and method

#20
20190145663
2019-05-16

SYSTEM AND METHOD FOR OPERATING A PORTABLE AIR HEATER

#21
20190120501
2019-04-25

Heater with Flame Display

#22
20190054800
2019-02-21

Vehicle heater

#23
20190041093
2019-02-07

FORCED AIR HEATER INCLUDING MULTIPLE ON-BOARD SOURCES OF ELECTRIC ENERGY

#24
20190001786
2019-01-03

Carrier device

#25
20180195761
2018-07-12

Forced air heater including multiple on-board sources of electric energy

#26
20170176048
2017-06-22

Multiple stage modulating gas fired heat exchanger

#27
20170108240
2017-04-20

HEATING CONVECTORS PROVIDED WITH GAS HEATERS

#28
20160265809
2016-09-15

Coupling structure of a case and an air heater body in an air heater

#29
20160209081
2016-07-21

Flameless heater

#30
20160018131
2016-01-21

VENTURI DISK NON-EXPOSED FLAME AND ELECTRONIC CONTROLS HEATER

#31
20150354817
2015-12-10

Heater with flame display

#32
20150128483
2015-05-14

Multi-component system for treating enclosed environments

#33
20150107573
2015-04-23

Forced air heater including multiple on-board sources of electric energy

#34
20140261370
2014-09-18

Dual bypass direct fired heating system with pressure control

#35
20140209085
2014-07-31

Forced Air Heater Including On-Board Source of Electric energy

#36
20140202443
2014-07-24

Fuel/air furnace mixer

#37
20130180972
2013-07-18

Adaptive heating system with exchangeable heat sources

#38
20120251965
2012-10-04

Heating device

#39
20120227727
2012-09-13

Hot air heater and blower assembly

#40
20120180784
2012-07-19

Gas-Fired Portable Unvented Infrared Heater

#41
20120148963
2012-06-14

Induced-draft low swirl burner for low NOx emissions

#42
20110311929
2011-12-22

Cascading set point burner control system for paint spray booths

#43
20110309155
2011-12-22

Thermos at algorithm for fully modulating furnaces

#44
20110265779
2011-11-03

Forced air heater including on-board source of electric energy

#45
20110247603
2011-10-13

Furnace vent with water-permeable inner pipe

#46
20110215079
2011-09-08

Methods and apparatus providing flame-less heat

#47
20100294257
2010-11-25

Direct-fired heating system