ClassID:

162012

F28D21/0008 - CPC Classification

Classification description:

Heat-exchange apparatus not covered by any of the groups  - ; Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems Air heaters

Recent Application in this class:
#1
20240024529
2024-01-25

AIR STERILISATION APPARATUS

#2
20210025590
2021-01-28

Heat recovery unit

#3
20200124357
2020-04-23

Hybrid heating system

#4
20200049426
2020-02-13

Flue Gas Energy Recovery System and Method

#5
20190346212
2019-11-14

Membrane-integrated energy exchange assembly

#6
20190154359
2019-05-23

COMBUSTION HEATING APPARATUS

#7
20190017753
2019-01-17

Heat exchanger tube

#8
20190011122
2019-01-10

Pulse combustion heat exchanger system and method

#9
20180195808
2018-07-12

Heat recovery system for commercial kitchen cooking appliances

#10
20180106551
2018-04-19

Heat Exchanger for a Device that Produces Combustible Product Gas from Carbon-Containing Input Materials

#11
20180023844
2018-01-25

Heat exchanger element and method for manufacturing such a heat exchanger element

#12
20170121900
2017-05-04

Apparatus for delivering a pressurized fluid material for cleaning a surface

#13
20160187026
2016-06-30

Heater for indoor warming using waste heat of exhaust gas

#14
20150338127
2015-11-26

Combustion apparatus having air intake preheater

#15
20150198384
2015-07-16

Domestic boiler preheater

#16
20140264968
2014-09-18

System and method for forming an energy exchange assembly

#17
20140262144
2014-09-18

Membrane-integrated energy exchange assembly

#18
20140041692
2014-02-13

APPARATUS FOR CLEANING A SURFACE

#19
20130306282
2013-11-21

Heat exchanger

#20
20120227941
2012-09-13

EXTERNAL HEAT EXCHANGER FOR STOVES

#21
20120208140
2012-08-16

DEVICE FOR HEATING AIR DURING THE DUTY CYCLE OF A COMBUSTION FURNACE

#22
20120125311
2012-05-24

PREMIX AIR HEATER

#23
20120088200
2012-04-12

FURNACE HEAT EXCHANGER

#24
20120006512
2012-01-12

Asymmetric Dimple Tube for Gas Heat

#25
20110297139
2011-12-08

Warm air furnace

#26
20110277974
2011-11-17

Condensing Heat Exchanger for Gas Furnaces

#27
20100233641
2010-09-16

DEVICE FOR HEATING AIR DURING THE DUTY CYCLE OF A HEATING BOILER

#28
20080202736
2008-08-28

Multi-channel heat exchanger

#29
20080149301
2008-06-26

Reducing cost of heating and air-conditioning

#30
18483590
2025-11-04

Heat recovery system

#31
15645068
2018-03-20

Pulse combustion heat exchanger system and method