ClassID:

162099

F28F1/42 - CPC Classification

Classification description:

Tubular elements; Assemblies of tubular elements; Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element

Sub-classes:
Recent Application in this class:
#1
20260146804
2026-05-28

Thermal Buffer Device for Rapid, Non-Dilutive Cooling of Beverages

#2
20250297789
2025-09-25

EVAPORATOR COIL INSERT

#3
20250297788
2025-09-25

EVAPORATOR COIL INSERT

#4
20240255234
2024-08-01

Heat exchanger with heat transfer augmentation features

#5
20240085070
2024-03-14

EVAPORATOR COIL INSERT

#6
20240044588
2024-02-08

Heat exchanger with heat transfer augmentation features

#7
20240044587
2024-02-08

HEAT EXCHANGER WITH HEAT TRANSFER AUGMENTATION FEATURES

#8
20230340844
2023-10-26

Mud returns evaporative cooling

#9
20230184429
2023-06-15

Heat pipe for submerged combustion burner

#10
20230175783
2023-06-08

FLAT TUBE HEAT EXCHANGER

#11
20210389057
2021-12-16

HEAT EXCHANGER

#12
20210380925
2021-12-09

FERMENTATION TANK

#13
20210348803
2021-11-11

PIPE FLUID HEAT EXCHANGE FLAT PIPE AND DEVICE FOR HEATING PIPE FLUID

#14
20210222924
2021-07-22

Evaporator coil insert

#15
20210156624
2021-05-27

Inverted heat exchanger device

#16
20210071962
2021-03-11

Heat exchanger with stacked flow channel modules

#17
20200300559
2020-09-24

Gas-gas high-temperature heat exchanger

#18
20200200490
2020-06-25

Method for Assessing Performance of Finned Tube Heat Exchanger under Non-uniform Face Velocity

#19
20200132347
2020-04-30

Evaporator coil insert

#20
20200116391
2020-04-16

Furnace for a rooftop unit

#21
20200116389
2020-04-16

Heat transfer fin

#22
20190376696
2019-12-12

Heat exchanger and air conditioner having the same

#23
20190293367
2019-09-26

Asymmetric application of cooling features for a cast plate heat exchanger

#24
20180372416
2018-12-27

Manufacturing a heat exchanger using a material buildup process

#25
20180345353
2018-12-06

3D printed heat exchanger

#26
20180274482
2018-09-27

STIRLING CYCLE MACHINE

#27
20180231319
2018-08-16

Heat exchanger

#28
20180172360
2018-06-21

Heat transfer device

#29
20180106535
2018-04-19

Heat exchangers for low temperature carbon dioxide separation from natural gas

#30
20180087846
2018-03-29

Heat sink having thermal distortion compensation

#31
20180031340
2018-02-01

Furnace for a rooftop unit

#32
20170307303
2017-10-26

HEAT EXCHANGER

#33
20170307300
2017-10-26

RE-DIRECTION OF VAPOR FLOW ACROSS TUBULAR CONDENSERS

#34
20170167804
2017-06-15

Concentric vertical pipe heat exchanger for drain water heat recovery

#35
20170038148
2017-02-09

Heat exchange member and heat exchanger

#36
20160131040
2016-05-12

Heat exchanger having a coaxial or concentric tube construction

#37
20160053653
2016-02-25

Waste heat exchanger

#38
20160025415
2016-01-28

Heat exchanger, refrigeration cycle apparatus, and method of manufacturing heat exchanger

#39
20160025036
2016-01-28

Coolant penetrating cold-end pressure vessel

#40
20150375349
2015-12-31

Heat exchanger tube and methods for producing a heat exchanger tube

#41
20150362174
2015-12-17

Transfer pipe for furnace

#42
20150308756
2015-10-29

Fin-tube type heat exchanger

#43
20150300757
2015-10-22

HEAT EXCHANGER TUBE INSERT

#44
20150247681
2015-09-03

Evaporation heat transfer tube

#45
20150184614
2015-07-02

Linear cross-head bearing for stirling engine

#46
20150152809
2015-06-04

Annular venturi burner for stirling engine

#47
20150040751
2015-02-12

Stirling cycle machine

#48
20150007964
2015-01-08

Re-direction of vapor flow across tubular condensers

#49
20140374408
2014-12-25

Heat exchanger device and heater

#50
20140366375
2014-12-18

Method of producing a heat exchanger tube

#51
20140332188
2014-11-13

HEAT EXCHANGER

#52
20140318756
2014-10-30

Air-conditioning apparatus

#53
20140199054
2014-07-17

Biphasic heat exchange radiator with optimisation of the boiling transient

#54
20140182828
2014-07-03

Heat-Exchange Apparatus

#55
20140182282
2014-07-03

Floating rod seal for a stirling cycle machine

#56
20140102134
2014-04-17

Tubular condensers having tubes with external enhancements

#57
20140000235
2014-01-02

Stirling cycle machine with airlock pressure regulator and burner controls

#58
20130340986
2013-12-26

Heat exchanger tube with collared fins for enhanced heat transfer

#59
20130233013
2013-09-12

Air conditioner with grooved inner heat exchanger tubes and grooved outer heat exchanger tubes

#60
20130206379
2013-08-15

Air conditioner

#61
20130199766
2013-08-08

Air conditioner with grooved inner heat exchanger tubes and grooved outer heat exchanger tubes

#62
20130199765
2013-08-08

Air conditioner

#63
20130160981
2013-06-27

Heat exchanger and baffle thereof

#64
20130081795
2013-04-04

Heat exchanger with improved tank and tube construction

#65
20130025832
2013-01-31

Closed-loop temperature equalization device having a heat releasing system structured by multiple flowpaths

#66
20120227403
2012-09-13

Coolant penetrating cold-end pressure vessel

#67
20120222447
2012-09-06

Tubular condensers having tubes with external enhancements

#68
20120198882
2012-08-09

EVAPORATOR

#69
20120097380
2012-04-26

HEAT EXCHANGER

#70
20120048525
2012-03-01

CONDUCTING TYPE INTER-PIPING FLUID THERMAL ENERGY TRANSFER DEVICE

#71
20120043067
2012-02-23

HEAT SINK CORE MEMBER AND ITS FABRICATION PROCEDURE

#72
20120037346
2012-02-16

Heat exchanger

#73
20110303389
2011-12-15

FLUID STORAGE TANK HAVING ACTIVE INTEGRATED COOLING

#74
20110226458
2011-09-22

MODULAR HEAT SINK AND METHOD FOR FABRICATING SAME

#75
20110214847
2011-09-08

DOUBLE PIPE AND HEAT EXCHANGER HAVING THE SAME

#76
20110174473
2011-07-21

Methods of forming enhanced-surface walls for use in apparatae for performing a process, enhanced-surface walls, and apparatae incorporating same

#77
20110164465
2011-07-07

HEAT EXCHANGER WITH HELICAL FLOW PATH

#78
20110146963
2011-06-23

Heat exchanger tube and methods for producing a heat exchanger tube

#79
20110146939
2011-06-23

Energy absorption and release devices and systems

#80
20110132586
2011-06-09

HEAT EXCHANGER WITH TUBE BUNDLE

#81
20110127016
2011-06-02

HEAT EXCHANGER

#82
20110113820
2011-05-19

HEAT TRANSFER TUBE FOR HEAT EXCHANGER, HEAT EXCHANGER, REFRIGERATING CYCLE APPARATUS, AND AIR CONDITIONER

#83
20110108238
2011-05-12

High-efficiency enhanced boiler

#84
20110094492
2011-04-28

DEVICE FOR FEEDING WATER STEAM VIA A HEAT EXCHANGER IN A COMBUSTION CHAMBER AND A METHOD

#85
20110083619
2011-04-14

DUAL ENHANCED TUBE FOR VAPOR GENERATOR

#86
20110073208
2011-03-31

Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the same

#87
20110056663
2011-03-10

Shell-and-Tube Heat Exchanger

#88
20110017440
2011-01-27

Heat exchanger

#89
20110011078
2011-01-20

Stirling cycle machine

#90
20110000657
2011-01-06

EXTRUDED TUBE FOR A HEAT EXCHANGER

#91
20110000254
2011-01-06

Heat exchanger and air conditioner using the same

#92
20100326644
2010-12-30

Plane-type heat-dissipating structure with high heat-dissipating effect and method for manufacturing the same

#93
20100276123
2010-11-04

Tubular condensers having tubes with external enhancements

#94
20100276122
2010-11-04

Re-direction of vapor flow across tubular condensers

#95
20100258280
2010-10-14

HEAT EXCHANGE TUBE WITH INTEGRAL RESTRICTING AND TURBULATING STRUCTURE

#96
20100229577
2010-09-16

Carbon dioxide refrigerant-coolant heat exchanger

#97
20100224349
2010-09-09

Heat exchange tube

#98
20100218533
2010-09-02

Air conditioner with internally grooved heat exchanger tubes optimized for an indoor heat exchanger and an outdoor heat exchanger

#99
20100193170
2010-08-05

Heat exchanger tube and method for producing it

#100
20100193168
2010-08-05

HEAT EXCHANGER

#101
20100162699
2010-07-01

Exhaust gas cooler

#102
20100089560
2010-04-15

Heat exchanger

#103
20100088893
2010-04-15

Method of forming protrusions on the inner surface of a tube

#104
20100032141
2010-02-11

COOLING SYSTEM UTILIZING CARBON NANOTUBES FOR COOLING OF ELECTRICAL SYSTEMS

#105
20100018672
2010-01-28

Conducting type inter-piping fluid thermal energy transfer device

#106
20100012306
2010-01-21

Procedure For Manufacture Of A Tube For Conveyance Of A Fluid Of A Heat Exchanger, And Tube Obtained By Such Procedure

#107
20090314475
2009-12-24

HEAT EXCHANGER

#108
20090277188
2009-11-12

Heat Exchanger for a Mobile Refrigerated Vehicle

#109
20090266106
2009-10-29

Method and apparatus for producing clathrate hydrate slurry, and method for operating the same apparatus

#110
20090250198
2009-10-08

HOT WATER CORRUGATED HEAT TRANSFER TUBE

#111
20090229806
2009-09-17

Enhanced heat transfer tube and manufacture method thereof

#112
20090229802
2009-09-17

EGR cooler

#113
20090188655
2009-07-30

Heat exchanger flat tube with oblique elongate dimples

#114
20090166019
2009-07-02

Double-wall-tube heat exchanger

#115
20090145581
2009-06-11

Non-linear fin heat sink

#116
20090087604
2009-04-02

EXTRUDED TUBE FOR USE IN HEAT EXCHANGER

#117
20090071624
2009-03-19

HEAT SINK

#118
20090056131
2009-03-05

Method and apparatus for forming a finned heat exchanger tube that includes an internal fin structure that is a spring formed from a spiral wire wound around a mandrel

#119
20090013678
2009-01-15

HEAT EXCHANGER FOR THE EXHAUST GAS LINE OF A MOTOR VEHICLE, METHOD FOR PRODUCING A HEAT EXCHANGER AND ASSEMBLY TOOL HEREFOR

#120
20090008069
2009-01-08

FINNED TUBE WITH STEPPED PEAKS

#121
20080289804
2008-11-27

Heat exchanger, method for the production of a heat exchanger

#122
20080236803
2008-10-02

FINNED TUBE WITH INDENTATIONS

#123
20080201948
2008-08-28

Method For Producing A Heat Exchanger

#124
20080149309
2008-06-26

Hot water heat transfer pipe

#125
20080093065
2008-04-24

HEAT EXCHANGER TUBE FOR HEATING SYSTEM

#126
20080093063
2008-04-24

Heat Exchanger for an Air Heating Device and Method for Producing a Heat Exchanger

#127
20080092536
2008-04-24

Coolant penetrating cold-end pressure vessel

#128
20080066488
2008-03-20

Heat Exchanger, Intermediate Heat Exchanger, and Refrigeration Cycle

#129
20080029243
2008-02-07

Heat exchanger tube with integral restricting and turbulating structure

#130
20080017359
2008-01-24

Heat Exchanger for an Air Heating Device

#131
20070287334
2007-12-13

Flat tube adapted for heat exchanger

#132
20070255213
2007-11-01

Tube and method of producing the same

#133
20070235163
2007-10-11

Indented tube for a heat exchanger

#134
20070234871
2007-10-11

Method for making enhanced heat transfer surfaces

#135
20070227715
2007-10-04

Heat exchanger

#136
20070193728
2007-08-23

Structured heat exchanger tube and method for the production thereof

#137
20070193324
2007-08-23

Roll forming apparatus and method of roll forming

#138
20070187067
2007-08-16

Heat transfer tube and heat exchanger using same

#139
20070181290
2007-08-09

Heat Transfer Apparatus

#140
20070180840
2007-08-09

Vertical self-contained air conditioner

#141
20070124909
2007-06-07

Method of forming protrusions on the inner surface of a tube

#142
20070089873
2007-04-26

3-D dimpled heat exchanger

#143
20070028649
2007-02-08

Cryogenic air separation main condenser system with enhanced boiling and condensing surfaces

#144
20070000651
2007-01-04

AN ENHANCED HEAT TRANSFER TUBE WITH DISCRETE BIDIRECTIONALLY INCLINED RIBS

#145
20060213346
2006-09-28

Tool for making enhanced heat transfer surfaces

#146
20060207245
2006-09-21

Exhaust gas heat exchanger

#147
20060201665
2006-09-14

Heat exchanger tube having strengthening deformations

#148
20060130818
2006-06-22

EGR cooler

#149
20060112556
2006-06-01

Method and apparatus of manufacturing grooved pipe, and structure thereof

#150
20060096744
2006-05-11

Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the same

#151
20060096314
2006-05-11

Double-wall pipe and refrigerant cycle device using the same

#152
20060086490
2006-04-27

Fin tube assembly for air-cooled condensing system and method of making same

#153
20060080997
2006-04-20

Accumulator with an internal heat exchanger for an air-conditioning system

#154
20060075773
2006-04-13

Heat transfer tubes, including methods of fabrication and use thereof

#155
20060075772
2006-04-13

Heat transfer tubes, including methods of fabrication and use thereof

#156
20060048931
2006-03-09

Heat exchanger assembly for a charge air cooler

#157
20050241232
2005-11-03

Highly integrated fuel processor for distributed hydrogen production

#158
20050241150
2005-11-03

Method of manufacture of heat-exchanger tube structured on both sides

#159
20050230094
2005-10-20

Tube structure of multitubular heat exchanger

#160
20050217833
2005-10-06

Heat exchanger and associated method

#161
20050217180
2005-10-06

Highly integrated fuel processor for distributed hydrogen production

#162
20050217179
2005-10-06

Highly integrated fuel processor for distributed hydrogen production

#163
20050199228
2005-09-15

EGR cooler

#164
20050178063
2005-08-18

Highly integrated fuel processor for distributed hydrogen production

#165
20050161209
2005-07-28

Tubular heat exchanger with offset interior dimples

#166
20050150648
2005-07-14

Multi-spiral upset heat exchanger tube

#167
20050145377
2005-07-07

Heat transfer tube including enhanced heat transfer surfaces

#168
20050126215
2005-06-16

Heat transfer tubes, including methods of fabrication and use thereof

#169
20050061492
2005-03-24

Heat exchanger and process for fabricating same

#170
20050061489
2005-03-24

Integrated multi-function return tube for combo heat exchangers

#171
20050061488
2005-03-24

Automotive heat exchanger

#172
20050016722
2005-01-27

Multi-pass fluid cooler

#173
20050006074
2005-01-13

Heat exchanger for motor vehicles