ClassID:

42995

B23K9/325 - CPC Classification

Classification description:

Arc welding or cutting; Accessories Devices for supplying or evacuating shielding gas

Sub-classes:
Recent Application in this class:
#1
20260145257
2026-05-28

SYSTEMS AND METHODS TO CONTROL FUME EXTRACTION DAMPERS

#2
20260131394
2026-05-14

FUME MITIGATION SYSTEMS AND METHODS FOR ARC WELDING SYSTEMS

#3
20260124693
2026-05-07

Deliberate Defect Introduction in Additive Manufacturing

#4
20260102836
2026-04-16

METHOD AND APPARATUS FOR MINIMIZING GAS USAGE IN GAS SHIELDED INDUSTRIAL PROCESSES

#5
20250357713
2025-11-20

WIRE FEEDING SYSTEMS WITH BUILT-IN ROTATING POWER CONNECTORS

#6
20250205807
2025-06-26

WELDING APPARATUS AND WELDING METHOD FOR ULTRA-NARROW WELDING GAP

#7
20250135571
2025-05-01

WELDING TORCHES HAVING INTEGRATED CABLES

#8
20250121451
2025-04-17

CONTACT TIP AND RECEIVING ASSEMBLY OF A WELDING TORCH

#9
20250018493
2025-01-16

SYSTEMS AND METHODS FOR UTILIZING GAS LENS INTERFACING COLLETS

#10
20250001515
2025-01-02

FUME EXTRACTOR ATTACHMENTS FOR WELDING TORCHES

#11
20240342820
2024-10-17

SHIELDING JIG AND GAS-SHIELDED METAL ARC WELDING APPARATUS

#12
20240316681
2024-09-26

WELDING DEVICE FOR SUPPRESSING WELDING HOT CRACKS, AND WELDING SYSTEM

#13
20240217023
2024-07-04

Combined Extraction/Shielding Gas Nozzle of an Arc Welding Torch with a Non-Consumable Electrode and Torch Body Comprising a Combined Extraction/Shielding Gas Nozzle

#14
20240217020
2024-07-04

Combined Extraction/Shielding Gas Nozzle of an Arc Welding Torch with a Consumable Electrode and Torch Neck Having a Combined Extraction/Shielding Gas Nozzle

#15
20240217019
2024-07-04

Method and carrier gas nozzle for supplying a fluid to a welding area of a workpiece

#16
20240198445
2024-06-20

WELDING SYSTEMS FOR COOLING WELDING CONTACT TIPS

#17
20240157462
2024-05-16

Gas surge prevention using improved flow regulators in welding-type systems

#18
20240157461
2024-05-16

ROTATING POWER CONNECTOR FOR WELDING TORCH CABLES

#19
20240123533
2024-04-18

DEVICE AND METHOD FOR DIRECT ENERGY DEPOSITION ADDITIVE MANUFACTURING (DED)

#20
20240091873
2024-03-21

SHIELDING GAS EJECTING DEVICE, AND MACHINING DEVICE

#21
20240051058
2024-02-15

MODULAR TRAILING NOZZLE SYSTEM FOR A WELDING TORCH

#22
20240042540
2024-02-08

WELDING DEVICE

#23
20240009751
2024-01-11

WELDING DEVICE

#24
20230356317
2023-11-09

SYSTEM AND METHOD FOR CONTROLLING SHIELDING GAS FLOW IN A WELDING DEVICE

#25
20230256531
2023-08-17

MACHINE TOOL, WORKPIECE SUPPORT DEVICE OF MACHINE TOOL, METHOD OF OPERATING MACHINE TOOL, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM

#26
20230173603
2023-06-08

WELDING TORCH

#27
20230144822
2023-05-11

METHOD AND APPARATUS FOR MANUFACTURING 3D METAL PARTS

#28
20230111903
2023-04-13

EXTRACTOR WITH SEGMENTED POSITIVE PRESSURE AIRFLOW SYSTEM

#29
20220402060
2022-12-22

Metal drop ejecting three-dimensional (3D) object printer and method of operation for forming metal support structures

#30
20220314356
2022-10-06

DYNAMIC MIXTURE OF SHIELDING GASES

#31
20220250182
2022-08-11

DEVICE FOR CLEANING AND COOLING A WORKPIECE UPON WIRE-ARC ADDITIVE MANUFACTURING (WAAM)

#32
20220241885
2022-08-04

DEVICE FOR THERMALLY JOINING AT LEAST ONE WORKPIECE, COMPRISING A TORCH AND AN EXTRACTION UNIT

#33
20220234129
2022-07-28

Gas surge prevention using improved flow regulators in welding-type systems

#34
20220226941
2022-07-21

QUICK-CHANGE SYSTEM FOR SHIELDING-GAS DRAG NOZZLES

#35
20220219256
2022-07-14

ORBITAL WELDING PURGE SYSTEMS

#36
20220080521
2022-03-17

Rotating power connector for welding torch cables

#37
20220063012
2022-03-03

TIG welding torch equipped with narrow nozzle for spot welding, and electrode nozzle used in same

#38
20220001480
2022-01-06

Welding torch assembly device

#39
20210283708
2021-09-16

SMART REGULATORS FOR WELDING-TYPE SYSTEMS

#40
20210205865
2021-07-08

Machine side connection for fume extraction torches

#41
20210107085
2021-04-15

End assembly for welding device

#42
20210101221
2021-04-08

SHIELDING GAS CUSTOMIZED WELDING APPARATUS AND METHOD

#43
20210078115
2021-03-18

TORCH BODY FOR THERMAL JOINING

#44
20210016381
2021-01-21

METHOD AND APPARATUS FOR MANUFACTURING 3D METAL PARTS

#45
20210008654
2021-01-14

FORMING DEVICE AND METHOD FOR SUPPLYING AT LEAST ONE ROOT PROTECTION GAS

#46
20200361019
2020-11-19

Contact tip and receiving assembly of a welding torch

#47
20200338660
2020-10-29

Welding gun and welding method

#48
20200238429
2020-07-30

Hot gaseous welder system and method

#49
20200238427
2020-07-30

WELDING DEVICE AND WELDING METHOD

#50
20200230734
2020-07-23

PORTABLE AND COMPACT WELDING FUME EXTRACTOR

#51
20200215638
2020-07-09

TIG TORCH FOR WELDING, SOLDERING OR COATING

#52
20200180062
2020-06-11

GAS-SHIELDED ARC WELDING SYSTEM AND GAS-SHIELDED ARC WELDING METHOD

#53
20200156173
2020-05-21

System and method for controlling shielding gas flow in a welding device

#54
20200114455
2020-04-16

Welding cup systems and methods

#55
20200114448
2020-04-16

Welding or additive manufacturing dual wire drive system

#56
20200086414
2020-03-19

TIG welding torch body, TIG welding torch handle, and TIG welding torch having such a TIG welding torch body and TIG welding torch handle

#57
20200047276
2020-02-13

Welding torch

#58
20200009608
2020-01-09

PROCESSING APPARATUS FOR PROCESSING A WORKPIECE SURFACE WITH FLUID FLOW SHIELDING

#59
20190240766
2019-08-08

Gas diffuser assemblies for nozzle assemblies having multiple attachment methods

#60
20190232410
2019-08-01

Welding device

#61
20190151978
2019-05-23

TIG welding device

#62
20190134684
2019-05-09

Hood for fume extractor

#63
20190084071
2019-03-21

Welding type power supply with wind tunnel

#64
20190054560
2019-02-21

System and method for communication with welding gas line

#65
20190030636
2019-01-31

Welding method using special torch

#66
20190001381
2019-01-03

FUME EXTRACTION SWIVEL ASSEMBLY FOR GAS SHIELDED WELDING

#67
20180369945
2018-12-27

Consumable electrode type gas shield arc welding method and arc welding portion

#68
20180369886
2018-12-27

PORTABLE AND COMPACT WELDING FUME EXTRACTOR

#69
20180339358
2018-11-29

FUME EXTRACTION ASSEMBLY FOR GAS SHIELDED WELDING

#70
20180304395
2018-10-25

Welding systems for cooling welding contact tips

#71
20180272459
2018-09-27

WELDER EXTENSION

#72
20180236672
2018-08-23

Controlled environment processing apparatus and method

#73
20180229325
2018-08-16

TIG gun power pin for welding device or system and multi-process welder with a single gas flow path

#74
20180214972
2018-08-02

Tip-retention device for use with a welding system

#75
20180178304
2018-06-28

3D PRINTING APPARATUS

#76
20180147650
2018-05-31

Displacement welding chamber

#77
20180099346
2018-04-12

Systems, methods, and apparatus to preheat welding wire

#78
20180043457
2018-02-15

Device for providing a laminar flow of shielding gas in a welding device

#79
20180001414
2018-01-04

Arc welding device and method

#80
20170355039
2017-12-14

Joining connection and method for welding torch components

#81
20170326676
2017-11-16

Arc welding equipment

#82
20170326675
2017-11-16

PROTECTIVE GAS MOUTHPIECE, CONNECTION DEVICE AND CONNECTION METHOD

#83
20170320158
2017-11-09

Welding wire cartridge with moisture protection

#84
20170189988
2017-07-06

Fume extractor for welding applications

#85
20170080512
2017-03-23

Contact tip and receiving assembly of a welding torch

#86
20170080510
2017-03-23

CONTACT TIP AND COUPLING ASSEMBLY OF A WELDING TORCH

#87
20170036293
2017-02-09

Robot arm apparatus and actuator

#88
20170016640
2017-01-19

Extractor with segmented positive pressure airflow system

#89
20170014936
2017-01-19

WELD PROTECTING DEVICE BY GAS DIFFUSION

#90
20170014876
2017-01-19

Extractor with end-mounted positive pressure system

#91
20160339532
2016-11-24

System and method for reducing weld root concavity

#92
20160263693
2016-09-15

Instantaneous gas purge apparatus

#93
20160256951
2016-09-08

Welding torch system for use in welding or cutting operations, welding torch for use in such a welding torch system and method for welding using such a welding torch system or such a welding torch

#94
20160243642
2016-08-25

Low back pressure penetrating arc welding apparatus and method

#95
20160221107
2016-08-04

Welding power system with integrated purge gas control

#96
20160178085
2016-06-23

Apparatus for regulation of the pressure of a gas

#97
20160175977
2016-06-23

System and method for communication with welding gas line

#98
20160148098
2016-05-26

System for estimating the amount and content of fumes

#99
20160129517
2016-05-12

Welding type power supply with wind tunnel

#100
20160107260
2016-04-21

WELDING NOZZLE OF A WELDING TORCH

#101
20160045973
2016-02-18

Ventilated vibrating electrode holder

#102
20160008905
2016-01-14

ROBOT AND ROBOTIC SYSTEM

#103
20160001391
2016-01-07

Gas systems, welding systems, and methods of welding

#104
20150298237
2015-10-22

Method and device for monitoring inert gas during a welding process

#105
20150251266
2015-09-10

Coupling structure and method for feeding compressed air to welding device using same

#106
20150151378
2015-06-04

WELDING METHOD, WELDING NOZZLE AND WELDING DEVICE

#107
20150108094
2015-04-23

METHOD AND DEVICE FOR GAS METAL ARC WELDING

#108
20150048065
2015-02-19

Welding torch with a fixing element for the gas nozzle, said element being capable of extension; process control method for a welding system equipped with said welding torch; gas nozzle for said welding torch; and contact tube for said welding torch

#109
20150041441
2015-02-12

System and Method for Weld Removal, Cutting, and Gouging With Vacuum Removal of Byproducts

#110
20150004895
2015-01-01

Airborne component extractor with baffled debris collection

#111
20150000232
2015-01-01

Three-phase portable airborne component extractor with rotational direction control

#112
20140341642
2014-11-20

Back-shielded welding method and welded structure using the same

#113
20140329009
2014-11-06

Processing apparatus for processing a workpiece surface with fluid flow shielding

#114
20140319103
2014-10-30

WELDING ASSEMBLY FOR GAS SHIELDED ARC WELDING

#115
20140263251
2014-09-18

SPLIT GOOSENECK FOR WELDING GUNS

#116
20140263192
2014-09-18

SHIELDING CUP FOR ORBITAL WELDING

#117
20140231394
2014-08-21

Underwater welding apparatus and underwater welding method

#118
20140209572
2014-07-31

CONTACT DEVICE FOR CONTOURED SURFACES

#119
20140144893
2014-05-29

Welding a joint

#120
20140131422
2014-05-15

Method for reduced cycle times in multi-pass welding while providing an inert atmosphere to the welding zone

#121
20140131322
2014-05-15

System and methods providing modulation schemes to affect heat input to a weld

#122
20140124224
2014-05-08

Fire protection system for air cleaning system

#123
20140117068
2014-05-01

Field-customizable inflatable purge dam apparatus

#124
20140116992
2014-05-01

Welding Enclosure

#125
20140091066
2014-04-03

Welder having feedback control

#126
20140042141
2014-02-13

Method for weld removal, cutting, and gouging with vacuum removal of byproducts

#127
20140034619
2014-02-06

WELDING PURGE CONTROL USING ELECTRONIC FLOW CONTROL

#128
20140033535
2014-02-06

Re-manufacture and apparatus of worn railroad freight car and locomotive wheels by rotational continuous longitudinal welding

#129
20130313229
2013-11-28

Gas shielding device

#130
20130313039
2013-11-28

Method for repairing a sound attenuation panel

#131
20130291951
2013-11-07

Automatic flow regulator for fume gun

#132
20130270247
2013-10-17

Welding gun

#133
20130244560
2013-09-19

Airborne component extractor with improved power and pressure performance

#134
20130244559
2013-09-19

Airborne component extractor manifold

#135
20130244558
2013-09-19

Airborne component extractor with adjustable flow rates

#136
20130244557
2013-09-19

Airborne component extractor hood

#137
20130244556
2013-09-19

Airborne component extractor with improved flow paths

#138
20130244555
2013-09-19

Optimized airborne component extractor

#139
20130193117
2013-08-01

Welding torch and adapter kit

#140
20130186866
2013-07-25

Auxiliary shielding gas filter for a welding apparatus

#141
20130134134
2013-05-30

Burner body comprising a securing system; TIG welding torch comprising such a burner body

#142
20130104382
2013-05-02

METHOD AND APPARATUS FOR CONVERTING A MIG WELDER INTO A CARBON-ARC CUTTER

#143
20130075379
2013-03-28

WELDING DEVICE

#144
20130068745
2013-03-21

GAS SHIELDING DEVICE FOR A WELDING SYSTEM

#145
20120199636
2012-08-09

Chamber with low turbulence argon purging system

#146
20120193334
2012-08-02

Fume extractor for welding applications

#147
20120152398
2012-06-21

Method for reduced cycle times in multi-pass welding while providing an inert atmosphere to the welding zone

#148
20120111845
2012-05-10

Fume extraction system with automatic fume hood positioning

#149
20110223002
2011-09-15

Method for handling welding gas bottles

#150
20110204032
2011-08-25

Automatic shutoff system and method for workspace enclosure environment

#151
20110089225
2011-04-21

Low Turbulence Argon Purging System

#152
20100282728
2010-11-11

POWER SOURCE WITH FUME EXTRACTOR FOR WELDING

#153
20100276398
2010-11-04

Shielding gas flow controller for a welding apparatus

#154
20100276396
2010-11-04

APPARATUS AND METHOD FOR WELDING

#155
20100270270
2010-10-28

Shield

#156
20100126969
2010-05-27

System and method for weld removal, cutting, and gouging with vacuum removal of byproducts

#157
20100108645
2010-05-06

DEVICE AND METHOD FOR AUTOMATIC UNDERWATER WELDING FOR MAKING A WELDING JOINT ON A SURFACE

#158
20100096374
2010-04-22

ROTATING WELDING GUN HANDLE TO ACHIEVE TRIGGER-UP OR TRIGGER-DOWN ORIENTATION

#159
20100025380
2010-02-04

WELDING TORCH INCLUDING A CONVEX OPEN-WORK GRID FOR ENLARGING THE JET OF GAS

#160
20100012637
2010-01-21

ROBOTIC GMAW TORCH WITH QUICK RELEASE GOOSENECK LOCKING MECHANISM, DUAL ALIGNMENT FEATURES, AND MULTIPLE ELECTRICAL CONTACTS

#161
20100012625
2010-01-21

Welding purge control using electronic flow control

#162
20090321403
2009-12-31

Robotic welder having fume extraction

#163
20090302007
2009-12-10

Device for centering and clamping tubular parts, comprising means for regulating the gas flow rate in order to control the oxygen content

#164
20090230104
2009-09-17

Laser shock peening

#165
20090230094
2009-09-17

Open-top welding chamber

#166
20090212024
2009-08-27

WELDING PROCESS

#167
20090184099
2009-07-23

Compressed Air Welding Fume Shield System and Method

#168
20090145884
2009-06-11

FORMING DEVICE AND METHOD FOR FORMING

#169
20090107970
2009-04-30

METHOD FOR CONTROLLING WELD QUALITY

#170
20090050609
2009-02-26

Welding torch with a fixing element for the gas nozzle, said element being capable of extension; process control method for a welding system equipped with said welding torch; gas nozzle for said welding torch; and contact tube for said welding torch

#171
20090039066
2009-02-12

Neck for a robotic welding torch

#172
20080289506
2008-11-27

PORTABLE WELDING SMOG DISPOSING MACHINE

#173
20080223830
2008-09-18

SHIELDING GAS CYLINDER HOLDER FOR WELDING-TYPE DEVICES

#174
20080217378
2008-09-11

Device for Centering and Clamping Tubular Parts, Comprising Means for the Real-Time Mesurement and Regulation of the Moisture Content

#175
20080115809
2008-05-22

Method for cleaning of welding torches

#176
20080035623
2008-02-14

Contact tip and assembly

#177
20080028907
2008-02-07

Cutting machine

#178
20070246445
2007-10-25

Welding gun

#179
20070235428
2007-10-11

inverter powered plasma cutting system with fixed gas flow control

#180
20070221628
2007-09-27

GAS BOTTLE FOR WELDING-TYPE DEVICES

#181
20070187461
2007-08-16

Welding shielding dam for automated welding of impellers and blisks

#182
20070164000
2007-07-19

Welding shielding gas flow rate-limiting apparatus

#183
20070084902
2007-04-19

Conduit purging device and method

#184
20070034617
2007-02-15

Arc welding control device

#185
20060266745
2006-11-30

Gas shielding apparatus and method of use

#186
20060233993
2006-10-19

Self-adhesive purge dam for retaining purge gas around a weld zone

#187
20060226136
2006-10-12

Fume gun

#188
20060213892
2006-09-28

System and method for data communications over a gas hose in a welding-type application

#189
20060157535
2006-07-20

Orbital tube welding purge adaptor

#190
20060118526
2006-06-08

Orbital welding internal pressure control

#191
20060071096
2006-04-06

Control device for dispersing a liquid in a fluid

#192
20050279735
2005-12-22

Nozzle assembly for welding torch

#193
20050263494
2005-12-01

Protective gas supply device for electric arc joining

#194
20050258143
2005-11-24

Preparing a protective gas mixture for arc joining

#195
20050252890
2005-11-17

Gas system for welding-type devices

#196
20050252889
2005-11-17

Gas bottle for welding-type devices

#197
20050173379
2005-08-11

Welding torch and shield

#198
20050000946
2005-01-06

Welder with integrated gas bottle

#199
19065178
2025-09-23

Portable purge chamber for controlled atmosphere welding of readily contaminated metals like titanium or zirconium

#200
13186588
2015-08-04

Tack weld purging system