ClassID:

158714

F24H9/0084 - CPC Classification

Classification description:

Details Combustion air preheating

Sub-classes:
Recent Application in this class:
#1
20260049713
2026-02-19

BURNER ASSEMBLY FOR AIR PREHEATING COMBUSTION

#2
20250067471
2025-02-27

ROTARY APPARATUS FOR HEATING FLUIDS AND FOR RECYCLING HEATED FLUIDS, RELATED METHOD AND USES

#3
20240353147
2024-10-24

GAS CONTROL SYSTEM

#4
20230235921
2023-07-27

Gas control system

#5
20230139832
2023-05-04

Water heater receiving humidified air

#6
20230139453
2023-05-04

HEATING DEVICE WITH IMPROVED EFFICIENCY

#7
20220397303
2022-12-15

Hybrid tank and tankless water heating system

#8
20210404707
2021-12-30

Gas control system

#9
20210356170
2021-11-18

Methods systems and devices for controlling temperature and humidity using excess energy from a combined heat and power system

#10
20210239360
2021-08-05

Vent attachment for a tankless water heater

#11
20210108804
2021-04-15

THERMODYNAMIC CO2 BOILER AND THERMAL COMPRESSOR

#12
20200348045
2020-11-05

Methods systems and devices for controlling temperature and humidity using excess energy from a combined heat and power system

#13
20200271036
2020-08-27

Muffler and catalytic converters for combined heating and power systems

#14
20200224925
2020-07-16

Combination systems and related methods for providing power, heat and cooling

#15
20190390856
2019-12-26

Method for preheating a fluid upstream of a furnace

#16
20190162442
2019-05-30

Reduced size fire tube boiler system and method of operating same

#17
20190154359
2019-05-23

COMBUSTION HEATING APPARATUS

#18
20190055932
2019-02-21

Thermodynamic boiler with thermal compressor

#19
20190032954
2019-01-31

Combination systems and related methods for providing power, heat and cooling

#20
20180274834
2018-09-27

Passive heat recovery or defrosting device using a closed loop heat transfer circuit

#21
20180195759
2018-07-12

Reverse combustion type combustion apparatus

#22
20160298911
2016-10-13

Ceramic heat exchange plate and ceramic heat exchange core assembled thereby

#23
20150362214
2015-12-17

COMBUSTION APPARATUS HAVING INTAKE AIR/EXHAUST AIR HEAT EXCHANGER

#24
20150338127
2015-11-26

Combustion apparatus having air intake preheater

#25
20150198384
2015-07-16

Domestic boiler preheater

#26
20150184888
2015-07-02

Dual-ring and straight fin tube condensing

#27
20150104725
2015-04-16

Combined fuel cell and boiler system

#28
20150007780
2015-01-08

Coil and serpentine bent fin tube condensing heat exchanger

#29
20130328322
2013-12-12

Non-to-minimally fractionalized biomass-fueled renewable energy

#30
20130221668
2013-08-29

MICRO COMBINED HEAT AND POWER UNIT

#31
20130177825
2013-07-11

Power generation system and method of operating the same

#32
20130074786
2013-03-28

GAS WATER HEATER WITH INCREASED THERMAL EFFICIENCY AND SAFETY

#33
20120279484
2012-11-08

Fuel Oil Supply System from a Remote Source Including Recirculated Heating of Fuel Oil and Supplemented Supply Pressure

#34
20110259317
2011-10-27

Hot water supply apparatus

#35
20110247603
2011-10-13

Furnace vent with water-permeable inner pipe

#36
20100313827
2010-12-16

High-Efficiency Gas-Fired Forced-Draft Condensing Hot Water Boiler

#37
20100101505
2010-04-29

Transition element for a passage in a water heater

#38
20100065046
2010-03-18

PASSIVE STREAM REGULATING SYSTEM APPLICABLE TO HEAT EXCHANGERS