ClassID:

162102

F28F1/426 - 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; Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex

Recent Application in this class:
#1
20230349642
2023-11-02

Heat exchanger and use of heat exchanger

#2
20230003456
2023-01-05

Double pipe for heat exchanger

#3
20220290925
2022-09-15

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

#4
20220146214
2022-05-12

Heat Transfer Tube

#5
20220074670
2022-03-10

Flat tube and heat exchanger

#6
20210348855
2021-11-11

HEAT EXCHANGER TUBES

#7
20210278144
2021-09-09

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

#8
20210215443
2021-07-15

Heat exchanger flat tube and heat exchanger with heat exchanger flat tube

#9
20210207896
2021-07-08

CIRCULATION DUCT FOR CONVEYING A FLUID OF A HEAT EXCHANGER, AND HEAT EXCHANGER

#10
20210172657
2021-06-10

Condensing heat exchanger for air to liquid heat pumps

#11
20200340760
2020-10-29

Heat exchanger tubes

#12
20200309471
2020-10-01

Flow path structure of heat exchanger, and heat exchanger

#13
20190195575
2019-06-27

Flat tube for an exhaust gas cooler

#14
20190100079
2019-04-04

Internal heat exchanger double-tube structure of air conditioning system having alternative refrigerant applied thereto

#15
20190039115
2019-02-07

Device and method for forming inside three-dimensional finned tube by multi-edge ploughing and extruding

#16
20180245863
2018-08-30

Heat exchanger, heat exchange method using heat exchanger, heat transport system using heat exchanger, and heat transport method using heat transport system

#17
20180164047
2018-06-14

HEAT EXCHANGER INCLUDING TWISTED TUBES

#18
20180106557
2018-04-19

Stainless steel and pipe made thereof

#19
20180106221
2018-04-19

Exhaust gas recirculation cooler for an internal combustion engine

#20
20180045467
2018-02-15

Double pipe heat exchanger and method of manufacturing the same

#21
20180023895
2018-01-25

Enhanced Tubular Heat Exchanger

#22
20170328598
2017-11-16

HEATING SYSTEM WITH ADJUSTABLE LOUVER

#23
20170307300
2017-10-26

RE-DIRECTION OF VAPOR FLOW ACROSS TUBULAR CONDENSERS

#24
20170248053
2017-08-31

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

#25
20170219530
2017-08-03

System and method for testing shell and tube heat exchangers for defects

#26
20170159146
2017-06-08

Tubular strengthening and patterning method for enhanced heat transfer

#27
20170138670
2017-05-18

Finned coaxial cooler

#28
20170030652
2017-02-02

Finned coaxial cooler

#29
20170001943
2017-01-05

Method for producing carbonates

#30
20160341491
2016-11-24

IMPROVED TUBE FOR A HEAT EXCHANGER

#31
20160290205
2016-10-06

Integrated functional heat exchange apparatus for automobile

#32
20150354506
2015-12-10

Integrated exhaust gas management device

#33
20150267637
2015-09-24

Exhaust gas heat exchanging device

#34
20150224561
2015-08-13

Double pipe type heat exchanger and method for manufacturing the same

#35
20150135795
2015-05-21

Method for manufacturing flat pipe

#36
20150007964
2015-01-08

Re-direction of vapor flow across tubular condensers

#37
20140360706
2014-12-11

Laboratory condensers with passive heat exchange

#38
20140262165
2014-09-18

Heat exchanger tube

#39
20140138861
2014-05-22

Internal liquid separating hood-type condensation heat exchange tube

#40
20140116668
2014-05-01

COOLER PIPE AND METHOD OF FORMING

#41
20140102134
2014-04-17

Tubular condensers having tubes with external enhancements

#42
20140027099
2014-01-30

S-bent tube cooler

#43
20140008048
2014-01-09

Radiant tubular element for industrial plants and similar

#44
20130146247
2013-06-13

Heat Exchanger for Vehicle

#45
20130075070
2013-03-28

HEAT EXCHANGER TUBE

#46
20130062041
2013-03-14

MULTI-LAYERED HEAT TRANSFER TUBE, MANUFACTURING METHOD OF MULTI-LAYERED HEAT TRANSFER TUBE, AND FORMING DEVICE USED IN THE MANUFACTURING METHOD

#47
20130025834
2013-01-31

DOUBLE TUBE TYPE HEAT EXCHANGE PIPE

#48
20120222447
2012-09-06

Tubular condensers having tubes with external enhancements

#49
20120138268
2012-06-07

Combined cooling of lube/seal oil and sample coolers

#50
20120097380
2012-04-26

HEAT EXCHANGER

#51
20120043055
2012-02-23

Double pipe type heat exchanger and method for manufacturing the same

#52
20120037346
2012-02-16

Heat exchanger

#53
20120012289
2012-01-19

Annular axial flow ribbed heat exchanger

#54
20110284193
2011-11-24

HEAT EXCHANGER

#55
20110219814
2011-09-15

TUBULAR HEAT EXCHANGER FOR MOTOR VEHICLE AIR CONDITIONERS

#56
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

#57
20110174469
2011-07-21

DOUBLE-PIPE HEAT EXCHANGER

#58
20110132586
2011-06-09

HEAT EXCHANGER WITH TUBE BUNDLE

#59
20110132028
2011-06-09

TUBULAR HEAT EXCHANGER FOR MOTOR VEHICLE AIR CONDITIONERS

#60
20110127016
2011-06-02

HEAT EXCHANGER

#61
20110073208
2011-03-31

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

#62
20110056663
2011-03-10

Shell-and-Tube Heat Exchanger

#63
20100276123
2010-11-04

Tubular condensers having tubes with external enhancements

#64
20100276122
2010-11-04

Re-direction of vapor flow across tubular condensers

#65
20100258280
2010-10-14

HEAT EXCHANGE TUBE WITH INTEGRAL RESTRICTING AND TURBULATING STRUCTURE

#66
20100229577
2010-09-16

Carbon dioxide refrigerant-coolant heat exchanger

#67
20100224349
2010-09-09

Heat exchange tube

#68
20100162699
2010-07-01

Exhaust gas cooler

#69
20100089560
2010-04-15

Heat exchanger

#70
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

#71
20090314475
2009-12-24

HEAT EXCHANGER

#72
20090266106
2009-10-29

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

#73
20090250198
2009-10-08

HOT WATER CORRUGATED HEAT TRANSFER TUBE

#74
20090229802
2009-09-17

EGR cooler

#75
20090188655
2009-07-30

Heat exchanger flat tube with oblique elongate dimples

#76
20090071639
2009-03-19

HEAT EXCHANGER

#77
20090032224
2009-02-05

HEAT EXCHANGER

#78
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

#79
20080236803
2008-10-02

FINNED TUBE WITH INDENTATIONS

#80
20080149309
2008-06-26

Hot water heat transfer pipe

#81
20080029243
2008-02-07

Heat exchanger tube with integral restricting and turbulating structure

#82
20070287334
2007-12-13

Flat tube adapted for heat exchanger

#83
20070255213
2007-11-01

Tube and method of producing the same

#84
20070246117
2007-10-25

Method of manufacturing double pipe

#85
20070235163
2007-10-11

Indented tube for a heat exchanger

#86
20070227715
2007-10-04

Heat exchanger

#87
20070187067
2007-08-16

Heat transfer tube and heat exchanger using same

#88
20070089873
2007-04-26

3-D dimpled heat exchanger

#89
20070000651
2007-01-04

AN ENHANCED HEAT TRANSFER TUBE WITH DISCRETE BIDIRECTIONALLY INCLINED RIBS

#90
20060207757
2006-09-21

Heat exchanger exhaust gas recirculation cooler

#91
20060201665
2006-09-14

Heat exchanger tube having strengthening deformations

#92
20060130818
2006-06-22

EGR cooler

#93
20060112556
2006-06-01

Method and apparatus of manufacturing grooved pipe, and structure thereof

#94
20060096744
2006-05-11

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

#95
20060096314
2006-05-11

Double-wall pipe and refrigerant cycle device using the same

#96
20050230094
2005-10-20

Tube structure of multitubular heat exchanger

#97
20050217833
2005-10-06

Heat exchanger and associated method

#98
20050199228
2005-09-15

EGR cooler

#99
20050161209
2005-07-28

Tubular heat exchanger with offset interior dimples

#100
20050150648
2005-07-14

Multi-spiral upset heat exchanger tube