ClassID:

162072

F28F1/04 - CPC Classification

Classification description:

Tubular elements; Assemblies of tubular elements; Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular

Sub-classes:
Recent Application in this class:
#1
20260078938
2026-03-19

REFRIGERATION APPARATUS

#2
20260022902
2026-01-22

HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS

#3
20260016240
2026-01-15

REFRIGERANT MODULE

#4
20250290711
2025-09-18

HEAT EXCHANGER

#5
20250257912
2025-08-14

MICRO-CHANNEL REFRIGERATING EVAPORATOR AND FREEZE-DRYING SYSTEM USING EVAPORATOR

#6
20250244085
2025-07-31

IMMERSION LIQUID COOLING HEAT SINK

#7
20250244084
2025-07-31

FLUID FLAT TUBE HEAT DISSIPATION DEVICE

#8
20250224184
2025-07-10

FIN STRUCTURE AND HEAT EXCHANGER HAVING SAME

#9
20250164195
2025-05-22

HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS INCLUDING THE SAME

#10
20250146756
2025-05-08

HEAT EXCHANGER

#11
20250137728
2025-05-01

HEAT EXCHANGER

#12
20240384938
2024-11-21

Heat Exchanger

#13
20240318926
2024-09-26

LIQUID COOLING RADIATOR FOR LIQUID COOLERS

#14
20240318924
2024-09-26

POLYGONAL-SHAPED HEAT PIPES

#15
20240302110
2024-09-12

LOW SOLIDITY COALESCING TUBE BUNDLE ELBOW

#16
20240295362
2024-09-05

HEAT EXCHANGER AND METHOD OF MANUFACTURING A HEAT EXCHANGER

#17
20240280326
2024-08-22

MICRO-CHANNEL HEAT EXCHANGER

#18
20240280325
2024-08-22

HEAT EXCHANGER

#19
20240271891
2024-08-15

TUBULAR BODY FOR A HEAT EXCHANGER, AND A MANUFACTURING PROCESS FOR THE SAME

#20
20240263891
2024-08-08

Flat Tube and Heat Exchanger

#21
20240240877
2024-07-18

HEAT EXCHANGER

#22
20240230243
2024-07-11

WASTEWATER HEAT RECOVERY SYSTEMS

#23
20240207985
2024-06-27

Processing method and device for heat exchanger

#24
20240175636
2024-05-30

HEAT EXCHANGER AND AIR CONDITIONING SYSTEM

#25
20240159481
2024-05-16

HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS

#26
20240159474
2024-05-16

HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS

#27
20240019218
2024-01-18

HEAT EXCHANGER CHANNEL

#28
20240003636
2024-01-04

HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS INCLUDING THE SAME

#29
20230314093
2023-10-05

Heat tube for heat exchanger

#30
20230288143
2023-09-14

HEAT EXCHANGER CHANNELS

#31
20230184489
2023-06-15

Heat Exchanger

#32
20230168043
2023-06-01

Heat exchanger

#33
20230168039
2023-06-01

Heat exchanger

#34
20230108901
2023-04-06

Heat exchanger

#35
20230108472
2023-04-06

Tube winding for a gas heat exchange cell for a boiler

#36
20230101157
2023-03-30

HEAT EXCHANGER AND AIR-CONDITIONING APPARATUS

#37
20230094694
2023-03-30

Heat exchanger

#38
20220325956
2022-10-13

HEAT EXCHANGER

#39
20220221228
2022-07-14

Chilling unit

#40
20220146212
2022-05-12

COOLING TUBES, SYSTEMS, AND METHODS

#41
20220042749
2022-02-10

POLYMER TUBE DRY COOLING TOWER

#42
20220026151
2022-01-27

PLATE WITH FLOW CHANNEL

#43
20220018605
2022-01-20

Heat exchanger

#44
20210372706
2021-12-02

HEAT EXCHANGER CHANNELS

#45
20210356209
2021-11-18

Heat exchanger, tank for heat exchanger, and method of making the same

#46
20210333054
2021-10-28

Heat exchange tube, processing method for same, and heat exchanger having same

#47
20210325130
2021-10-21

Tube and chamber type heat exchange apparatus having an enhanced medium directing assembly

#48
20210325129
2021-10-21

Modified shaped heat exchanger inlets/outlets

#49
20210131748
2021-05-06

Heat exchange tube and heat exchanger having the same

#50
20210123690
2021-04-29

Heat Exchange Tube, Heat Exchange Tube Manufacturing Method, and Heat Exchanger

#51
20210116187
2021-04-22

Arrowhead fin for heat exchange tubing

#52
20210102756
2021-04-08

HEAT EXCHANGER WITH INTERLEAVED MANIFOLDS AND LAYERED CORE

#53
20210033345
2021-02-04

High pressure capable liquid to refrigerant heat exchanger

#54
20210003349
2021-01-07

Heat exchanger

#55
20200386492
2020-12-10

Gas-liquid heat exchanger

#56
20200378692
2020-12-03

Bent heat exchanger

#57
20200318916
2020-10-08

Heat exchanger

#58
20200256597
2020-08-13

Heat exchanger and air conditioning apparatus including the same

#59
20200124362
2020-04-23

Flat extruded aluminum multi-port tube whose inner surface is highly corrosion-resistant and an aluminum heat exchanger using the tube

#60
20200103148
2020-04-02

Heat exchanger and air-conditioning apparatus

#61
20200072558
2020-03-05

Flat tube for a heat exchanger and a heat exchanger that is more resistant to debris

#62
20200018552
2020-01-16

High pressure capable liquid to refrigerant heat exchanger

#63
20200011605
2020-01-09

HEAT EXCHANGER MANUFACTURING METHOD, HEAT EXCHANGER STACKING METHOD, HEAT EXCHANGER, AND MULTI-ROW HEAT EXCHANGER

#64
20190292979
2019-09-26

INTERCOOLER CONSISTING OF A LIQUID-COOLED PRECOOLER AND AN AIR-COOLED MAIN COOLER

#65
20190285350
2019-09-19

Solid-state heat exchanger module

#66
20190285321
2019-09-19

Heat exchanger and air conditioner

#67
20190264986
2019-08-29

HEAT DISSIPATION DEVICE

#68
20190264981
2019-08-29

Heat exchanger

#69
20190249902
2019-08-15

Tube assembly for tubular heat exchanger, and tubular heat exchanger comprising same

#70
20190234689
2019-08-01

Flow baffles for shell and tube heat exchangers

#71
20190186431
2019-06-20

TUBE, IN PARTICULAR A FLAT TUBE FOR AN EXHAUST GAS COOLER AND EXHAUST GAS COOLER

#72
20190162483
2019-05-30

COOLING APPARATUS

#73
20190162455
2019-05-30

MICROCHANNEL HEAT EXCHANGER

#74
20190154360
2019-05-23

Thermal pyrolytic graphite tube device for directional thermal management

#75
20190154344
2019-05-23

RADIATOR

#76
20190120562
2019-04-25

Heat exchanger

#77
20190101307
2019-04-04

Tubular heat exchanger

#78
20190049186
2019-02-14

Finless heat exchanger, outdoor unit of an air-conditioning apparatus including the finless heat exchanger, and indoor unit of an air-conditioning apparatus including the finless heat exchanger

#79
20190024991
2019-01-24

Flow path member

#80
20190017740
2019-01-17

Temperature homogenizing container and refrigerator having same

#81
20180372425
2018-12-27

HEAT EXCHANGER

#82
20180340737
2018-11-29

Evaporator

#83
20180306515
2018-10-25

Air conditioner

#84
20180281048
2018-10-04

METHODS OF FORMING A HEAT EXCHANGER

#85
20180243813
2018-08-30

Apparatus for inserting flattened tubes into heat exchanger fins

#86
20180238637
2018-08-23

Heat exchanger and refrigeration cycle apparatus including the same

#87
20180238276
2018-08-23

Exhaust gas cooler

#88
20180164052
2018-06-14

FLAT EXTRUDED ALUMINUM MULTI-PORT TUBE WHOSE INNER SURFACE IS HIGHLY CORROSION-RESISTANT AND AN ALUMINUM HEAT EXCHANGER USING THE TUBE

#89
20180094874
2018-04-05

Heat exchange unit

#90
20180080382
2018-03-22

Power generation system using closed or semi-closed Brayton cycle recuperator

#91
20180058770
2018-03-01

STRUCTURAL HEAT EXCHANGER

#92
20180023901
2018-01-25

Arrowhead fin for heat exchange tubing

#93
20170370652
2017-12-28

3D spiral heat exchanger

#94
20170335689
2017-11-23

Heat exchanger with precision manufactured flow passages

#95
20170268831
2017-09-21

Flat tube for header-plateless heat exchanger

#96
20170248378
2017-08-31

Planar heat pipe

#97
20170234627
2017-08-17

COOLER AND FLOW PATH UNIT

#98
20170219229
2017-08-03

DYNAMIC CYCLE AIR CONDITIONER WITH INCREMENTAL DEHUMIDIFICATION AND STORED WATER MAINTAINED AT A TEMPERATURE LOWER THAN THE ENVIRONMENT

#99
20170219228
2017-08-03

DYNAMIC CYCLE AIR CONDITIONER WITH INCREMENTAL DEHUMIDIFICATION INCORPORATING A WET PASSAGE AND A DRY PASSAGE

#100
20170219227
2017-08-03

DYNAMIC CYCLE AIR CONDITIONER WITH INCREMENTAL DEHUMIDIFICATION INCORPORATING MULTIPLE CIRCUITS OF THE VOLUME OF AIR

#101
20170219226
2017-08-03

DYNAMIC CYCLE AIR CONDITIONER WITH INCREMENTAL DEHUMIDIFICATION IN AN INDIRECT EVAPORATIVE COOLER

#102
20170211892
2017-07-27

TUBE FOR HEAT EXCHANGER

#103
20170205149
2017-07-20

HEAT EXCHANGER CHANNELS

#104
20170205146
2017-07-20

Heat exchanger channels

#105
20170198975
2017-07-13

Heat Exchanger Construction

#106
20170146300
2017-05-25

Heat transfer apparatus

#107
20170115065
2017-04-27

Heat exchangers

#108
20170107883
2017-04-20

Exhaust heat exchanger

#109
20170050233
2017-02-23

Protrusion forming device and method for forming protrusion part for heat exchanger

#110
20170010046
2017-01-12

Heat Exchanger

#111
20160341489
2016-11-24

Exhaust waste heat recovery device

#112
20160282061
2016-09-29

Compact heat exchanger

#113
20160252309
2016-09-01

METAL TUBE, HEAT TRANSFER TUBE, HEAT EXCHANGE DEVICE, AND METHOD FOR MANUFACTURING METAL TUBE

#114
20160238329
2016-08-18

HEAT EXCHANGER

#115
20160208746
2016-07-21

HEAT EXCHANGER

#116
20160205806
2016-07-14

Tailoring air cooled heat exchanger geometry to achieve environmental protection

#117
20160169596
2016-06-16

Heat exchanger

#118
20160146541
2016-05-26

Double tubing condensation exchanger for heating water and/or for producing sanitary hot water

#119
20160146500
2016-05-26

Exchanger for heating boilers

#120
20160109188
2016-04-21

TUBE FOR A HEAT EXCHANGER

#121
20160091252
2016-03-31

Collector and associated heat exchanger

#122
20160054067
2016-02-25

Heat exchanger, tank for heat exchanger, and method of making the same

#123
20160053653
2016-02-25

Waste heat exchanger

#124
20150300753
2015-10-22

COOLING TUBING FOR WINDING

#125
20150247680
2015-09-03

Flat pipe

#126
20150159962
2015-06-11

Plate-type heat exchanger reactor and method for producing the same

#127
20150041112
2015-02-12

Process for producing aluminum alloy tube having sacrificial anticorrosion layer and joining layer

#128
20150041111
2015-02-12

Heat Exchange Plate, Heat Exchanger, and Communication Base Station Cabinet

#129
20150026982
2015-01-29

Heat exchanger construction

#130
20140116651
2014-05-01

HEAT SINK APPLICABLE FOR ELETROMAGNETIC DEVICE

#131
20140090249
2014-04-03

Heat exchanger, methods therefor and a nuclear fission reactor system

#132
20140054016
2014-02-27

Condenser

#133
20140041228
2014-02-13

Heat exchanger tube, heat exchanger tube assembly, and methods of making the same

#134
20140041227
2014-02-13

Heat exchanger tube, heat exchanger tube assembly, and methods of making the same

#135
20130248151
2013-09-26

APPARATUS FOR COOLING A HEAT SOURCE OF A MOTOR VEHICLE

#136
20130240187
2013-09-19

HEAT EXCHANGER AND AIR CONDITIONER EQUIPPED WITH SAME

#137
20130180287
2013-07-18

Method and apparatus for feeding preheaters for glass melting installations

#138
20130153183
2013-06-20

Heat exchanger

#139
20130146259
2013-06-13

HEAT SINK

#140
20130088837
2013-04-11

FLOW CHANNEL MEMBER, AND HEAT EXCHANGER USING THE SAME, AND ELECTRONIC COMPONENT DEVICE

#141
20130062043
2013-03-14

HEAT EXCHANGER

#142
20130061617
2013-03-14

AIR CYCLE CONDENSER COLD INLET HEATING USING INTERNALLY FINNED HOT BARS

#143
20130056187
2013-03-07

Temperature regulator, cooling device, and method for manufacturing temperature regulator

#144
20120285666
2012-11-15

COAXIAL AIR TO AIR HEAT EXCHANGER FOR CIRCUMFERENTIAL WINDOW FRAME INSTALLATION

#145
20120198882
2012-08-09

EVAPORATOR

#146
20120196239
2012-08-02

METHOD AND DEVICE FOR COOLING A FINE GRAINED SOLID BULK WHILE EXCHANGING THE OPEN SPACE GAS CONTAINED THEREIN SIMULTANEOUSLY

#147
20120180990
2012-07-19

HEAT EXCHANGER

#148
20120152499
2012-06-21

Evaporator

#149
20120090820
2012-04-19

HEAT EXCHANGER AND TEMPERATURE-CONTROL DEVICE

#150
20120037346
2012-02-16

Heat exchanger

#151
20110289905
2011-12-01

EXHAUST GAS HEAT RECOVERY HEAT EXCHANGER

#152
20110271711
2011-11-10

WATER HEAT EXCHANGER AND HOT WATER HEAT SOURCE APPARATUS

#153
20110268631
2011-11-03

Multi-tube chemical reactor with tessellated heat transfer fins

#154
20110173813
2011-07-21

Method for producing a heat exchanger system, preferably of the exchanger/reactor type

#155
20110114299
2011-05-19

Flat tube with turbulence insert for a heat exchanger, heat exchanger having such flat tubes, as well as method and device for production of such a flat tube

#156
20110100012
2011-05-05

System and method for transmitting thermal energy

#157
20110075787
2011-03-31

Heat exchanger, methods therefor and a nuclear fission reactor system

#158
20110075786
2011-03-31

Heat exchanger, methods therefor and a nuclear fission reactor system

#159
20110030829
2011-02-10

Channel system with internal flow director and turbulence generator

#160
20100300666
2010-12-02

Heat exchanger

#161
20100300665
2010-12-02

Heat exchange unit and corresponding heat exchanger, method of manufacturing a heat exchange unit

#162
20100192938
2010-08-05

Heat Transfer Tubes, Combustion Gas Eductors, And Cooking Medium Heating Systems Including Such Tubes And Eductors

#163
20100175861
2010-07-15

LASER-WELDED HEAT EXCHANGER TUBE ASSEMBLY

#164
20100175860
2010-07-15

HEAT EXCHANGER

#165
20100139631
2010-06-10

Heat exchanger

#166
20100108303
2010-05-06

HEAT EXCHANGER CONSTRUCTION

#167
20100101755
2010-04-29

Heat exchanger for a boiler

#168
20100071675
2010-03-25

Flow channel, heat exchanger, exhaust gas recirculation system, charge air supply system, use of a heat exchanger

#169
20090090495
2009-04-09

Heat exchanger for a motor vehicle

#170
20090087604
2009-04-02

EXTRUDED TUBE FOR USE IN HEAT EXCHANGER

#171
20090065186
2009-03-12

CONDENSER ASSEMBLY

#172
20090065183
2009-03-12

Flat heat transfer tube

#173
20080173436
2008-07-24

PLASTIC INTERCOOLER

#174
20080115919
2008-05-22

Radiator Tube with Angled Flow Passage

#175
20080099183
2008-05-01

Aluminum Clad Steel Composite for Heat Exchanger Tubes and Manifolds

#176
20080095611
2008-04-24

Method and apparatus for operating gas turbine engine heat exchangers

#177
20080093065
2008-04-24

HEAT EXCHANGER TUBE FOR HEATING SYSTEM

#178
20080060791
2008-03-13

Cooling apparatus for electronics

#179
20080047683
2008-02-28

Aluminum Heat Exchange Tube and Process for Fabricating Same

#180
20070289728
2007-12-20

Heat exchanger and mounting structure of the same

#181
20070187081
2007-08-16

Heat exchanger

#182
20070169926
2007-07-26

Heat exchanger

#183
20060266507
2006-11-30

Heat exchanger for dryer and condensing type dryer using the same

#184
20060266505
2006-11-30

Heat exchanger for dryer and condensing type dryer having the same

#185
20060201652
2006-09-14

Heat exchanger with beveled header

#186
20050282051
2005-12-22

Integrated honeycomb solid electrolyte fuel cells

#187
20050189095
2005-09-01

Heat exchanger for cooling exhaust gas and method of manufacturing same

#188
15355764
2018-02-13

Thermal sink with an embedded heat pipe