ClassID:

162075

F28F1/08 - CPC Classification

Classification description:

Tubular elements; Assemblies of tubular elements Tubular elements crimped or corrugated in longitudinal section

Recent Application in this class:
#1
20260139909
2026-05-21

HEAT EXCHANGE APPARATUS AND HEAT PUMP SYSTEM PROVIDED WITH SAME

#2
20260036373
2026-02-05

ADDITIVELY MANUFACTURED INTERWOVEN HEAT EXCHANGER WITH VARIABLE CHANNEL HEIGHTS

#3
20250347441
2025-11-13

CONDENSING BOILER FOR USE WITH NON-CONDENSING STACKS

#4
20240353181
2024-10-24

HEAT EXCHANGE APPARATUS AND HEAT PUMP SYSTEM PROVIDED WITH SAME

#5
20240288234
2024-08-29

HEAT EXCHANGER TURNAROUND SECTION

#6
20230184496
2023-06-15

Additive airfoil heat exchanger

#7
20230155205
2023-05-18

DUCT AND A METHOD OF MANUFACTURING A DUCT

#8
20230008846
2023-01-12

MANIFOLDING FOR MONOLITHIC REDUNDANT LOOP COLD PLATE UTILIZING ADJACENT THERMAL FEATURES

#9
20230003456
2023-01-05

Double pipe for heat exchanger

#10
20220290925
2022-09-15

Heat-transferring double pipe, inner pipe for heat-transferring double pipe, and manufacturing method thereof

#11
20220120460
2022-04-21

Smart air conditioner for reduction in fine dust and harmful gas

#12
20220011050
2022-01-13

Double tube for heat-exchange

#13
20220006135
2022-01-06

Support structure for a duct

#14
20210320343
2021-10-14

A DUCT AND A METHOD OF MANUFACTURING A DUCT

#15
20210310742
2021-10-07

Heat exchange apparatus and heat pump system provided with same

#16
20210302108
2021-09-30

Dimpled heat exchanger tube

#17
20210278144
2021-09-09

Shell and tube condenser and the heat exchange tube of a shell and tube condenser (variants)

#18
20210140714
2021-05-13

Double-tube heat exchanger and manufacturing method thereof

#19
20210094126
2021-04-01

Process for the continuous production of thin-walled hollow profiles which are composed of nonferrous metals and have small diameters and are corrugated in sections

#20
20210080194
2021-03-18

Heat exchanger

#21
20200284520
2020-09-10

Double tube for heat exchange

#22
20200182561
2020-06-11

CORRUGATED TUBE-IN-TUBE HEAT EXCHANGERS

#23
20200182559
2020-06-11

Heat exchanger riblet and turbulator features for improved manufacturability and performance

#24
20200132335
2020-04-30

Heat exchanger with vertical pipes

#25
20200080794
2020-03-12

B-tube reform for improved thermal cycle performance

#26
20200041217
2020-02-06

Vibration absorption tubing and manufacturing method thereof

#27
20190366290
2019-12-05

Heat exchanger and reactor

#28
20190242650
2019-08-08

Double pipe heat exchanger and method for manufacturing the same

#29
20190234351
2019-08-01

Method and systems for an EGR cooler including cooling tubes with a compliant region

#30
20190186431
2019-06-20

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

#31
20190040781
2019-02-07

LIGHTWEIGHT FLOW HEAT EXCHANGER

#32
20190032957
2019-01-31

Hot water appliance, flue gas discharge therefor and method for heating a fluid

#33
20180252433
2018-09-06

Reduced drag combustion pass in a tubular heat exchanger

#34
20180106557
2018-04-19

Stainless steel and pipe made thereof

#35
20180106556
2018-04-19

B-tube reform for improved thermal cycle performance

#36
20180094880
2018-04-05

Integrated pressure compensating heat exchanger and method

#37
20180094868
2018-04-05

DOUBLE PIPE HEAT EXCHANGER AND METHOD FOR MANUFACTURING THE SAME

#38
20180073810
2018-03-15

Marine engine heat exchanger

#39
20180045467
2018-02-15

Double pipe heat exchanger and method of manufacturing the same

#40
20180003447
2018-01-04

HEAT-EXCHANGE ELEMENT SUITABLE FOR A HEAT EXCHANGE BETWEEN FIRST AND SECOND FLUIDS, AN EXCHANGER CORE INCLUDING THE HEAT-EXCHANGE ELEMENT AND A HEAT EXCHANGER INCLUDING THE EXCHANGER CORE

#41
20170314875
2017-11-02

Flat tube for a heat exchanger

#42
20170309931
2017-10-26

Fuel cell device

#43
20170307300
2017-10-26

RE-DIRECTION OF VAPOR FLOW ACROSS TUBULAR CONDENSERS

#44
20170276094
2017-09-28

Method and systems for an EGR cooler including cooling tubes with a compliant region

#45
20170248053
2017-08-31

Unit for feeding a reducing solution from the tank to the exhaust duct of an engine

#46
20170234625
2017-08-17

Heat pipe

#47
20170205146
2017-07-20

Heat exchanger channels

#48
20170138670
2017-05-18

Finned coaxial cooler

#49
20170044968
2017-02-16

Marine engine heat exchanger

#50
20170030652
2017-02-02

Finned coaxial cooler

#51
20170001943
2017-01-05

Method for producing carbonates

#52
20160341491
2016-11-24

IMPROVED TUBE FOR A HEAT EXCHANGER

#53
20160223229
2016-08-04

Adsorber

#54
20160146548
2016-05-26

Heat exchanger, in particular for vehicle air conditioning loops or circuits

#55
20160025423
2016-01-28

HEAT TRANSFER PLATE

#56
20160025422
2016-01-28

HEAT TRANSFER PLATE

#57
20160018170
2016-01-21

Scrape-off type heat exchanger

#58
20160003550
2016-01-07

Heat exchanger

#59
20150233653
2015-08-20

Brazed heat exchanger

#60
20150123297
2015-05-07

Plastic tube screen fills and fabrication thereof

#61
20150007964
2015-01-08

Re-direction of vapor flow across tubular condensers

#62
20140360698
2014-12-11

Unitary heat exchangers having integrally-formed compliant heat exchanger tubes and heat exchange systems including the same

#63
20140262165
2014-09-18

Heat exchanger tube

#64
20140261242
2014-09-18

CORRUGATED INDIRECT WATER HEATER COIL

#65
20140182330
2014-07-03

Evaporator with cool storage function

#66
20140060504
2014-03-06

Exhaust gas recirculation apparatus and method for forming same

#67
20140054008
2014-02-27

Structure of exhaust pipe for exhaust heat recovery

#68
20140034028
2014-02-06

Plate-fin structure exhaust gas recirculation cooler with heat-insulation function

#69
20140027099
2014-01-30

S-bent tube cooler

#70
20130255303
2013-10-03

Cooling device for use in space environment

#71
20130213368
2013-08-22

Exhaust gas heat exchanger with an oscillation attenuated bundle of exchanger tubes

#72
20130146264
2013-06-13

HEAT EXCHANGER FOR VEHICLE

#73
20130146263
2013-06-13

HEAT EXCHANGER

#74
20130112384
2013-05-09

Heat exchanger

#75
20130092328
2013-04-18

Concentration plant with differently working sections

#76
20130048246
2013-02-28

Integrated pressure compensating heat exchanger and method

#77
20130025834
2013-01-31

DOUBLE TUBE TYPE HEAT EXCHANGE PIPE

#78
20130000878
2013-01-03

METHOD FOR PRODUCING A HEAT EXCHANGER AND HEAT EXCHANGER

#79
20120318483
2012-12-20

Heat Exchanger for Drain Heat Recovery

#80
20120247719
2012-10-04

METHOD OF AND APPARATUS FOR TRANSFERRING HEAT ENERGY BETWEEN A HEAT EXCHANGING SUBSYSTEM ABOVE THE SURFACE OF THE EARTH AND MATERIAL THEREBENEATH USING ONE OR MORE COAXIAL-FLOW HEAT EXCHANGING STRUCTURES PRODUCING TURBULENCE IN AQUEOUS-BASED HEAT-TRANSFERING FLUID FLOWING ALONG HELICALLY-EXTENDING OUTER FLOW CHANNELS FORMED THEREIN

#81
20120186776
2012-07-26

Twisted conduit for geothermal heating and cooling systems

#82
20120111548
2012-05-10

METHOD OF MAKING A HEAT EXCHANGER TUBE, AND HEAT EXCHANGER

#83
20120097380
2012-04-26

HEAT EXCHANGER

#84
20110289905
2011-12-01

EXHAUST GAS HEAT RECOVERY HEAT EXCHANGER

#85
20110259547
2011-10-27

BUILDING STRUCTURES EMPLOYING COAXIAL-FLOW HEAT TRANSFER STRUCTURES FOR THERMAL REGULATION

#86
20110259040
2011-10-27

REFRIGERATION CIRCUIT

#87
20110174469
2011-07-21

DOUBLE-PIPE HEAT EXCHANGER

#88
20110146594
2011-06-23

Fire tube heater

#89
20110132586
2011-06-09

HEAT EXCHANGER WITH TUBE BUNDLE

#90
20110056653
2011-03-10

Shell-and-Tube Heat Exchanger

#91
20110042042
2011-02-24

RADIATING PACKAGE MODULE FOR EXOTHERMIC ELEMENT

#92
20110030829
2011-02-10

Channel system with internal flow director and turbulence generator

#93
20110017422
2011-01-27

Geothermal heat transfer and intensification system and method

#94
20100301596
2010-12-02

COUPLING FOR INTERCONNECTING AT LEAST TWO PIPES

#95
20100276122
2010-11-04

Re-direction of vapor flow across tubular condensers

#96
20100230082
2010-09-16

IN-LINE HEAT-EXCHANGER AND METHOD OF FORMING SAME

#97
20100229577
2010-09-16

Carbon dioxide refrigerant-coolant heat exchanger

#98
20100218912
2010-09-02

Method, apparatus, header, and composition for ground heat exchange

#99
20100206518
2010-08-19

Corrugated heating conduit and method of using in thermal expansion and subsidence mitigation

#100
20100193175
2010-08-05

Heat sink apparatus with extendable pin fins

#101
20100192623
2010-08-05

REFRIGERATION CIRCUIT

#102
20100155040
2010-06-24

Heat Sink Comprising a Tube Through Which Cooling Medium Flows

#103
20100139902
2010-06-10

PLASTIC HEAT EXCHANGER

#104
20100089560
2010-04-15

Heat exchanger

#105
20100043464
2010-02-25

Heat Pump and Method of Heating Fluid

#106
20090235850
2009-09-24

PIPING

#107
20090229802
2009-09-17

EGR cooler

#108
20090159248
2009-06-25

Heat exchanger, heat exchanger tube and methods of making and using same

#109
20090038785
2009-02-12

Tubes for heat exchange

#110
20090014151
2009-01-15

Exhaust gas heat exchanger with an oscillationattenuated bundle of exchanger tubes

#111
20090013677
2009-01-15

Exhaust gas heat exchanger with integrated mounting interface

#112
20090013676
2009-01-15

LIGHTWEIGHT FLOW HEAT EXCHANGER

#113
20080257436
2008-10-23

Olefin production furnace having a furnace coil

#114
20080251241
2008-10-16

Double-pipe heat exchanger and manufacturing method thereof

#115
20080210402
2008-09-04

Method of and apparatus for transferring heat energy between a heat exchanging subsystem above the surface of the earth and material therebeneath using one or more coaxial-flow heat exchanging structures producing turbulence in aqueous-based heat-transfering fluid flowing along helically-extending outer flow channels formed therein

#116
20080196859
2008-08-21

Method of transferring heat energy between a heat exchanging subsystem above the surface of the earth and material therebeneath using a coaxial-flow heat exchanging structure generating turbulence along the outer flow channel thereof

#117
20080185135
2008-08-07

Natural gas dehydration and condensate separation system employing co-axial flow heat exchanging structures

#118
20080185133
2008-08-07

Vehicle body mounting configuration including exhaust system heat exchanger

#119
20080185122
2008-08-07

Building structures employing coaxial-flow heat transfer structures for thermal regulation

#120
20080148758
2008-06-26

Heat exchanging system employing co-axial flow heat exchanging structures installed in the ambient environment

#121
20080141665
2008-06-19

Double Pipe Heat Exchanger and Method of Manufacturing the Same

#122
20080066886
2008-03-20

Vehicle body mounting structure for exhaust system heat exchanger

#123
20080000616
2008-01-03

Heat exchanger and use thereof in showers

#124
20070289725
2007-12-20

Heat exchanger having a coil and a corrugated tube, cooling circuit, fuel circuit and vehicle comprising such a heat exchanger

#125
20070227714
2007-10-04

Heat exchanger

#126
20070187067
2007-08-16

Heat transfer tube and heat exchanger using same

#127
20070178029
2007-08-02

Pipe assembly reactor comprising a helically shaped cross section

#128
20070079955
2007-04-12

Heat exchange for medical use

#129
20070072028
2007-03-29

Fuel cell system

#130
20070034170
2007-02-15

Water heater with convoluted flue tube

#131
20070029067
2007-02-08

Geo-thermal heat exchanging system facilitating the transfer of heat energy using coaxial-flow heat exchanging structures installed in the earth for introducing turbulence into the flow of the aqueous-based heat transfer fluid flowing along the outer flow channel

#132
20070029066
2007-02-08

Coaxial-flow heat exchanging structure for installation in the earth and introducing turbulence into the flow of the aqueoue-based heat transfer fluid flowing along the outer flow channel while its cross-sectional characteristics produce fluid flows therealong having optimal vortex characteristics that optimize heat transfer with the earth

#133
20070023164
2007-02-01

Geo-thermal heat exchanging system facilitating the transfer of heat energy using coaxial-flow heat exchanging structures installed in the earth for introducing turbulence into the flow of the aqueous-based heat transfer fluid flowing along the outer flow channel

#134
20070023163
2007-02-01

Electromagnetic signal transmission/reception tower and accompanying base station employing system of coaxial-flow heat exchanging structures installed in well bores to thermally control the environment housing electronic equipment within the base station

#135
20060260789
2006-11-23

Heat exchange unit and heat exchanger using the heat exchange unit

#136
20060254753
2006-11-16

FLEXIBLE LOOP THERMOSYPHON

#137
20060144585
2006-07-06

Exhaust gas heat exchanger for cogeneration system

#138
20060032612
2006-02-16

Gas heat exchanger

#139
20060000582
2006-01-05

Flexible loop thermosyphon

#140
20050161208
2005-07-28

Hollow chamber profile made of metal, especially for heat exchangers

#141
20050103479
2005-05-19

Heat exchanger for heating of fuel cell combustion air

#142
20050024831
2005-02-03

Flexible loop thermosyphon

#143
15810653
2019-05-28

Method, apparatus, header, and composition for ground heat exchange