ClassID:

158740

F24H9/1881 - CPC Classification

Classification description:

Details; Arrangement or mounting of grates or heating means for air heaters; Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel

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

VARIABLE-FREQUENCY HEATER

#2
20250297774
2025-09-25

PROCESS AND APPARATUS FOR COMBUSTING HYDROGEN AND RECYCLING COMBUSTION PRODUCTS

#3
20240377102
2024-11-14

PROCESS AIR UNIT FOR HEATING PROCESS AIR

#4
20240003593
2024-01-04

HVAC SYSTEM WITH BAFFLES

#5
20230160605
2023-05-25

TOP FIRED OUTDOOR GAS HEAT EXCHANGER

#6
20230069940
2023-03-09

DRAFT INDUCER MOTOR CONTROL SYSTEM

#7
20220090823
2022-03-24

Dynamically adjusting heater

#8
20220049875
2022-02-17

Pre-mix burner assembly for low NOx emission furnace

#9
20210215354
2021-07-15

Fuel enrichment system for fuel-fired appliance

#10
20210148605
2021-05-20

HVAC system with baffles

#11
20210116148
2021-04-22

Hot Air Blower

#12
20210112973
2021-04-22

Heating device

#13
20200400345
2020-12-24

Portable indirect fuel fired heater with automated combustion optimization

#14
20200370787
2020-11-26

Brackets for mounting components within a furnace

#15
20200208839
2020-07-02

Control method of gas furnace

#16
20200149780
2020-05-14

Draft inducer motor control system

#17
20190353398
2019-11-21

Furnace

#18
20190301751
2019-10-03

Indirect gas furnace

#19
20190242619
2019-08-08

Modular heating system

#20
20190145620
2019-05-16

ENERGY-SAVING GAS BURNER HEAD AND GAS FURNACE THEREOF

#21
20190137139
2019-05-09

Air handling apparatus for HVAC systems

#22
20190101308
2019-04-04

Pre-mix burner assembly for low NOx emission furnace

#23
20190063742
2019-02-28

Positive pressure amplified gas-air valve for a low NOx premix combustion system

#24
20180259221
2018-09-13

Furnace

#25
20180259199
2018-09-13

Fuel enrichment system for fuel-fired appliance

#26
20180252433
2018-09-06

Reduced drag combustion pass in a tubular heat exchanger

#27
20180209643
2018-07-26

BURNER ASSEMBLY HAVING A BURNER ENCLOSURE FOR A COMBUSTION SYSTEM

#28
20180038601
2018-02-08

Indirect gas furnace

#29
20170328597
2017-11-16

Combustion apparatus

#30
20170241668
2017-08-24

Flue baffle

#31
20170241666
2017-08-24

Premix burner internal flue shield

#32
20160290656
2016-10-06

Dual fuel heating assembly with selector switch

#33
20160223224
2016-08-04

Forced flue heater

#34
20160216005
2016-07-28

Four pass high efficiency furnace and heat exchanger

#35
20160216004
2016-07-28

HIGH EFFICIENCY, HIGH TURNDOWN FURNACE SYSTEM

#36
20160146501
2016-05-26

Heating unit for a fuel air heater, method for manufacturing said heating unit, and fuel air heater comprising said heating unit

#37
20160146471
2016-05-26

Dual fuel heating system

#38
20160131396
2016-05-12

Furnace

#39
20160061444
2016-03-03

Combustion chamber assembly unit and method for construction of a combustion chamber assembly unit

#40
20160040905
2016-02-11

Fuel-fired heating appliance having improved burner assembly

#41
20160018131
2016-01-21

VENTURI DISK NON-EXPOSED FLAME AND ELECTRONIC CONTROLS HEATER

#42
20150345828
2015-12-03

PATIO HEATER WITH REFLECTIVE SHIELD

#43
20150253036
2015-09-10

OUTDOOR HEATER

#44
20150192291
2015-07-09

Multi-Cone Fuel Burner Apparatus For Multi-Tube Heat Exchanger

#45
20150168015
2015-06-18

FIRE GRATE SYSTEM FOR A LOW-EMISSION OUTDOOR FIRE RING

#46
20150128926
2015-05-14

Multi-burner head assembly

#47
20150128483
2015-05-14

Multi-component system for treating enclosed environments

#48
20150102116
2015-04-16

Bottom assembly unit for a combustion chamber assembly unit of a vaporizing burner

#49
20150083105
2015-03-26

Diffuser plate for premixed burner box

#50
20150040885
2015-02-12

Mobile heating device operated with liquid fuel

#51
20150020791
2015-01-22

CONVERGING-DIVERGING COMBUSTION ZONES FOR FURNACE HEAT EXCHANGES

#52
20140099592
2014-04-10

Forced air heater with dual air movers

#53
20140020669
2014-01-23

HVAC furnace

#54
20130252185
2013-09-26

IGNITER AIR SHIELD

#55
20120247444
2012-10-04

Gas-fired furnace and intake manifold for low NOapplications

#56
20120180784
2012-07-19

Gas-Fired Portable Unvented Infrared Heater

#57
20120178031
2012-07-12

Push and Pull Premix Combustion System With Blocked Vent Safety Shutoff

#58
20120085522
2012-04-12

Heat Exchanger System

#59
20110174287
2011-07-21

Converging-diverging combustion zones for furnace heat exchanges

#60
20100330519
2010-12-30

Dual fuel heating source

#61
20100330518
2010-12-30

Heat engine with nozzle

#62
20100330513
2010-12-30

Dual fuel heating source

#63
20100326430
2010-12-30

Dual fuel heating system and air shutter

#64
20100024794
2010-02-04

Direct-fired ductable heater

#65
20090044793
2009-02-19

FURNACE BURNER BOX

#66
20080178860
2008-07-31

Radiant tube heater

#67
20060157232
2006-07-20

Burner port shield

#68
20050161036
2005-07-28

One shot heat exchanger burner