Patents-Review.com
ClassID:

216305 ⎘

H01T21/02 - CPC Classification

Classification description:

Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs

Sub-classes:
Recent Application in this class:
#1
20260155635
2026-06-04

ELECTRODE SHAPE FORMING METHOD AND ELECTRODE SHAPE FORMING DEVICE

 #2
20250385489
2025-12-18

SPARK PLUG WITH COOLING FEATURES AND METHOD OF MANUFACTURING THE SAME

 #3
20250326047
2025-10-23

METHOD FOR PRODUCING AN ELECTRODE FOR AN IGNITION DEVICE

 #4
20250183626
2025-06-05

SPARK PLUG ELECTRODE COMPONENT, SPARK PLUG, AND METHOD OF MANUFACTURING SAME

 #5
20250149863
2025-05-08

NOBLE METAL PIN FOR SPARK PLUG ELECTRODE, SPARK PLUG ELECTRODES, SPARK PLUG AND METHOD OF PRODUCING THE SPARK PLUG ELECTRODES

 #6
20250038488
2025-01-30

SPARK PLUG WITH A SEALING EARTH ELECTRODE

 #7
20240388068
2024-11-21

Method for producing a spark plug, and spark plug

 #8
20240283224
2024-08-22

Prechamber spark plug having improved ignition properties

 #9
20240238951
2024-07-18

TOOL FOR REMOVING A SEAL RING FROM A SPARK PLUG

 #10
20240170928
2024-05-23

Prechamber spark plug having accurately adjustable electrode gap, and associated method

 #11
20240063611
2024-02-22

SPARK PLUG WITH SIDE ELECTRODE RING

 #12
20240063610
2024-02-22

SPARK PLUG ELECTRODE AND METHOD OF MANUFACTURING THE SAME

 #13
20240047949
2024-02-08

Spark plug, spark plug electrode, and method of manufacturing the same

 #14
20240047948
2024-02-08

Method of manufacturing spark plug electrode with electrode tip directly thermally coupled to heat dissipating core

 #15
20240030688
2024-01-25

Spark plug electrode and spark plug having the spark plug electrode, and production method for the spark plug electrode

 #16
20230318265
2023-10-05

Spark plug, spark plug electrode, and method of manufacturing the same

 #17
20230246425
2023-08-03

Method for manufacturing an assembly for a spark plug and spark plug

 #18
20230231365
2023-07-20

Spark plug electrode and method of manufacturing the same

 #19
20230198232
2023-06-22

Electrode tip assembly for a spark plug and method of manufacturing the same

 #20
20230163574
2023-05-25

Spark plug for internal combustion engine and method of manufacturing the same

 #21
20230143967
2023-05-11

Spark plug

 #22
20230143447
2023-05-11

Spark plug

 #23
20230116256
2023-04-13

Spark plug and methods of manufacturing same

 #24
20230038893
2023-02-09

Prechamber spark plug, ignition electrode for a prechamber spark plug and method for producing an ignition electrode

 #25
20220416517
2022-12-29

Spark plug

 #26
20220376480
2022-11-24

Method for manufacturing a prechamber spark plug

 #27
20220360053
2022-11-10

Spark plug electrode and method of manufacturing the same

 #28
20220344911
2022-10-27

Internal combustion engine spark plug and method of manufacturing the same

 #29
20220294191
2022-09-15

Spark plug

 #30
20220285920
2022-09-08

Prechamber spark plug with thermally enhanced prechamber cap

 #31
20220200246
2022-06-23

Spark plug electrode and method of manufacturing same

 #32
20220190562
2022-06-16

Pretreatment method for pretreating components prior to electroplating

 #33
20220181852
2022-06-09

Spark plug housing having a galvanic nickel and zinc-containing protective layer and a silicon-containing sealing layer, spark plug having said housing, and method for producing said housing

 #34
20220166196
2022-05-26

Spark plug

 #35
20220166195
2022-05-26

Spark plug shell and method of manufacture

 #36
20220154929
2022-05-19

Flame detection and ignition device

 #37
20220149598
2022-05-12

Composite sparking component for a spark plug and method of making the same

 #38
20220140575
2022-05-05

SPARK PLUG INSULATOR AND METHOD OF MAKING SAME

 #39
20220123531
2022-04-21

Spark plug housing including corrosion protection on the inner side and spark plug and manufacturing method

 #40
20220102945
2022-03-31

Spark plug connecting element and spark plug

 #41
20220060000
2022-02-24

Spark plug and method for manufacturing spark plug

 #42
20220059999
2022-02-24

SPARK PLUG ELECTRODE AND METHOD OF MANUFACTURING THE SAME

 #43
20220013993
2022-01-13

APPARATUSES AND PROCESSES FOR PREPARING A SUPPRESSOR SEAL OF A SPARK PLUG INSULATOR ASSEMBLY

 #44
20210376575
2021-12-02

Spark plug and method for manufacturing the same

 #45
20210359494
2021-11-18

Corona ignition device with improved electrical performance

 #46
20210320480
2021-10-14

Material for spark plug electrode and method for producing same

 #47
20210288473
2021-09-16

Spark plug housing including an electroplated or a chemically applied nickel-containing protective layer and a silicon-containing sealing layer, and a spark plug including this housing, and method for manufacturing this housing

 #48
20210273417
2021-09-02

Method for manufacturing a spark plug electrode system and a spark plug, spark plug electrode system, and spark plug

 #49
20210257816
2021-08-19

Spark plug that has an insulator less likely to be damaged

 #50
20210203135
2021-07-01

Spark plug, noble metal tip, and manufacturing method for noble metal tip

 #51
20210159676
2021-05-27

Spark plug and method of producing central electrode thereof

 #52
20210151959
2021-05-20

Spark plug and method for manufacturing a spark plug

 #53
20210091541
2021-03-25

A SWITCHING DEVICE

 #54
20210086279
2021-03-25

Ignition device component produced by cold metal transfer process

 #55
20210028606
2021-01-28

Method for manufacturing spark plug with peripheral edge of proximal end surface of sealing distal-end layer prevented from significantly rising toward proximal end

 #56
20210013704
2021-01-14

Ignition plug

 #57
20210006045
2021-01-07

METHOD FOR MANUFACTURING SPARK PLUG

 #58
20200388993
2020-12-10

Spark plug and manufacturing method thereof

 #59
20200366068
2020-11-19

Method for manufacturing spark plug

 #60
20200350747
2020-11-05

Spark plug resistance element with increased ZrSiOphase fraction

 #61
20200303905
2020-09-24

Spark plug and method of producing the same

 #62
20200295540
2020-09-17

Spark plug

 #63
20200274334
2020-08-27

Method of manufacturing spark plug that reliably prevents gasket from coming off mounting screw

 #64
20200244049
2020-07-30

Spark plug inspection method and spark plug manufacturing method

 #65
20200244048
2020-07-30

Spark plug

 #66
20200235551
2020-07-23

Spark plug for internal combustion engine use and method of manufacturing spark plug

 #67
20200207069
2020-07-02

Component produced by additive manufacturing

 #68
20200176956
2020-06-04

Spark plug electrode and method for manufacturing this spark plug electrode and spark plug including a spark plug electrode

 #69
20200161838
2020-05-21

Spark plug resistance element comprising fine non-conductive particles

 #70
20200153207
2020-05-14

Internal combustion engine component and method of manufacturing internal combustion engine component

 #71
20200124015
2020-04-23

Spark plug extension

 #72
20200112145
2020-04-09

Spark plug

 #73
20200059073
2020-02-20

Corona ignition device with improved electrical performance

 #74
20200044421
2020-02-06

Method of inspecting spark plug and method of manufacturing spark plug

 #75
20200036167
2020-01-30

Device for setting the electrode gap on a spark plug

 #76
20200036166
2020-01-30

Pre-chamber spark plug and method for producing a pre-chamber spark plug

 #77
20200021085
2020-01-16

Method for manufacturing spark plug

 #78
20190393683
2019-12-26

Method for producing a spark plug including an electrode having a base portion and a tip fixed to the base portion

 #79
20190386466
2019-12-19

Spark plug

 #80
20190379182
2019-12-12

Method of producing composite for forming electrode of ignition plug and method of producing ignition plug

 #81
20190372313
2019-12-05

Spark plug electrode wearing rate estimating method and apparatus

 #82
20190363521
2019-11-28

Method for manufacturing a spark plug that makes welded portions uniform

 #83
20190353136
2019-11-21

Igniter assembly with improved insulation and method of insulating the igniter assembly

 #84
20190341747
2019-11-07

Spark plug for an internal combustion engine having a two-piece electrode and an annular earth electrode

 #85
20190334323
2019-10-31

SPARK PLUG PRODUCTION METHOD

 #86
20190319433
2019-10-17

Ignition plug and method for manufacturing ignition plug

 #87
20190296526
2019-09-26

Spark plug and manufacturing method therefor

 #88
20190288489
2019-09-19

Method for producing an electrode device for a spark plug

 #89
20190288488
2019-09-19

Spark plug ignition tip, spark plug device, and method for producing a spark plug ignition tip

 #90
20190284988
2019-09-19

Spark plug for an internal combustion engine having a combustion pre-chamber

 #91
20190237942
2019-08-01

Spark plug for internal combustion engine and method for manufacturing the same

 #92
20190237941
2019-08-01

Spark plug for internal combustion engine and method for manufacturing the same

 #93
20190229501
2019-07-25

Spark plug electrode assembly and method of manufacturing same

 #94
20190214796
2019-07-11

Shaped collet for electrical stress grading in corona ignition systems

 #95
20190214795
2019-07-11

Ignition plug for an internal combustion engine and method for manufacturing the same

 #96
20190214794
2019-07-11

Fouling resistant spark plugs

 #97
20190199070
2019-06-27

Spark plug production method, spark plug production device and assembly inspection method

 #98
20190199068
2019-06-27

Spark plug for internal combustion engine

 #99
20190181621
2019-06-13

Corona igniter with hermetic combustion seal on insulator inner diameter

 #100
20190173266
2019-06-06

Spark plug

 #101
20190165548
2019-05-30

Ignition plug, control system, internal combustion engine, and internal combustion engine system

 #102
20190165547
2019-05-30

Spark plug and method for manufacturing the same

 #103
20190131775
2019-05-02

Spark plug and production method therefor

 #104
20190123517
2019-04-25

Production method of spark plug

 #105
20190115729
2019-04-18

Spark plug

 #106
20190103732
2019-04-04

Production method of spark plug

 #107
20190044310
2019-02-07

Method for manufacturing an ignition plug including a mark formed of an oxide film

 #108
20190044309
2019-02-07

METHOD FOR MANUFACTURING SPARK PLUG

 #109
20180375300
2018-12-27

Ignition plug

 #110
20180375298
2018-12-27

SPARK PLUG

 #111
20180366918
2018-12-20

Spark plug

 #112
20180331511
2018-11-15

Ignition plug including a mark formed of an oxide film and method for manufacturing thereof

 #113
20180331509
2018-11-15

Corona ignition device with improved electrical performance

 #114
20180331508
2018-11-15

Ground electrode pad for spark plug

 #115
20180331506
2018-11-15

Ignition plug

 #116
20180323585
2018-11-08

Method for manufacturing spark plug using a jig having a varied shape recess to prevent displacement of the noble tip during welding

 #117
20180323583
2018-11-08

Spark plug device and method of manufacturing spark plug device

 #118
20180309269
2018-10-25

High voltage connection sealing method for corona ignition coil

 #119
20180301878
2018-10-18

Method of manufacturing spark plug

 #120
20180294624
2018-10-11

Pre-chamber spark plug with orientated openings

 #121
20180291863
2018-10-11

Igniter assembly, insulator therefor and methods of construction thereof

 #122
20180287351
2018-10-04

Spark plug

 #123
20180274514
2018-09-27

Igniter assembly with improved insulation and method of insulating the igniter assembly

 #124
20180272563
2018-09-27

Method of producing spark plug insulator

 #125
20180261984
2018-09-13

Air-free cap end design for corona ignition system

 #126
20180254614
2018-09-06

Machining apparatus, component producing method, and spark plug producing method

 #127
20180212405
2018-07-26

Spark plug

 #128
20180183217
2018-06-28

Spark plug production method, spark plug production device and assembly inspection method

 #129
20180166863
2018-06-14

Spark plug

 #130
20180161913
2018-06-14

Method for manufacturing spark plug

 #131
20180159304
2018-06-07

PIPE MATERIAL AND PRODUCTION METHOD THEREFOR

 #132
20180138667
2018-05-17

Processing apparatus, method for manufacturing molded product, and method for manufacturing spark plug electrode

 #133
20180123325
2018-05-03

Method of forming a metallic electrode on the ceramic insulator of a spark plug

 #134
20180069379
2018-03-08

Method for producing spark plug

 #135
20180062357
2018-03-01

Spark plug and manufacturing method thereof

 #136
20180062356
2018-03-01

Ignition control system

 #137
20180058305
2018-03-01

Method of remanufacturing a prechamber assembly

 #138
20180054043
2018-02-22

Spark plug and method for manufacturing same

 #139
20180034247
2018-02-01

Spark plug with a suppressor that is formed at low temperature

 #140
20180019579
2018-01-18

Spark plug

 #141
20180019577
2018-01-18

Remanufactured sparkplug and sparkplug remanufacturing method

 #142
20180013267
2018-01-11

Method for manufacturing spark plug

 #143
20170358905
2017-12-14

Plasma jet plug

 #144
20170358904
2017-12-14

Spark plug

 #145
20170358903
2017-12-14

Spark plug including a ground electrode having a small cross section

 #146
20170353013
2017-12-07

Spark plug

 #147
20170338632
2017-11-23

Ignitor assembly including arcing reduction features

 #148
20170338631
2017-11-23

Spark plug with electrode with a deep welding seam, spark plug with the spark plug electrode, and production method for the spark plug electrode

 #149
20170338629
2017-11-23

Spark plug having reduced wear of the center electrode and method of making such a spark plug

 #150
20170333977
2017-11-23

Method for manufacturing tubular metal shell including ground electrode bar for spark plug, and method for manufacturing spark plug

 #151
20170331260
2017-11-16

Spark plug electrode, method for its production, and spark plug

 #152
20170331259
2017-11-16

Spark plug

 #153
20170328335
2017-11-16

Spark plug testing kit

 #154
20170326765
2017-11-16

Spark plug insulator production method, insulator, molding die

 #155
20170324224
2017-11-09

Method of manufacturing spark plug

 #156
20170310088
2017-10-26

Spark Plug Insulator and Method of Making the Same

 #157
20170288373
2017-10-05

Spark plug and method for manufacturing the same

 #158
20170264083
2017-09-14

Method for manufacturing an ignition electrode for spark plugs and spark plug manufactured therewith

 #159
20170264082
2017-09-14

Tape material having clad structure for manufacturing ignition plug electrode

 #160
20170264081
2017-09-14

Extruded insulator for spark plug and method of making the same

 #161
20170259380
2017-09-14

Laser welding method, method for manufacturing welded body, method for manufacturing electrode for spark plug, and method for manufacturing spark plug

 #162
20170256919
2017-09-07

High-power breakdown spark plugs and related methods

 #163
20170256917
2017-09-07

Spark plug insulator containing mullite and spark plug including same

 #164
20170250524
2017-08-31

High voltage connection sealing method for corona ignition coil

 #165
20170250523
2017-08-31

Method for manufacturing insulator for spark plug

 #166
20170244224
2017-08-24

Spark plug for a gas-powered internal combustion engine and method for the manufacture thereof

 #167
20170237235
2017-08-17

Spark plug having firing pad

 #168
20170229844
2017-08-10

Multipoint spark plug and multipoint spark plug manufacturing method

 #169
20170222405
2017-08-03

Spark plug

 #170
20170214223
2017-07-27

Method for manufacturing spark plug

 #171
20170214221
2017-07-27

Corona igniter with hermetic combustion seal on insulator inner diameter

 #172
20170214219
2017-07-27

Spark plug

 #173
20170179689
2017-06-22

Apparatus and method for manufacturing spark plug

 #174
20170170637
2017-06-15

Inspection method and apparatus of spark plug insulator

 #175
20170141546
2017-05-18

Method for manufacturing spark plug

 #176
20170141543
2017-05-18

Spark plug having improved ground electrode orientation and method of forming

 #177
20170093135
2017-03-30

Air-free cap end design for corona ignition system

 #178
20170093133
2017-03-30

Spark plug

 #179
20170085061
2017-03-23

Method for manufacturing an ignition electrode for spark plugs and spark plug manufactured therewith

 #180
20170077682
2017-03-16

Spark plug for internal combustion engine and production method thereof

 #181
20170070034
2017-03-09

SHRINK-FIT CERAMIC CENTER ELECTRODE

 #182
20170063048
2017-03-02

Spark plug and method for producing the same

 #183
20170054274
2017-02-23

Spark plug

 #184
20170047712
2017-02-16

Spark plug

 #185
20170025827
2017-01-26

Spark plug having a powder capsule

 #186
20170025826
2017-01-26

Method for producing a spark plug

 #187
20170025824
2017-01-26

Corona suppression at the high voltage joint through introduction of a semi-conductive sleeve between the central electrode and the dissimilar insulating materials

 #188
20170025823
2017-01-26

Method for manufacturing spark plug

 #189
20170021407
2017-01-26

Method for manufacturing metal fitting, method for manufacturing spark plug, and method for manufacturing sensor

 #190
20160380411
2016-12-29

Method of manufacturing spark plug

 #191
20160359302
2016-12-08

Corona ignition device with improved electrical performance

 #192
20160359301
2016-12-08

Corona ignition device and assembly method

 #193
20160344167
2016-11-24

Method for producing spark plug

 #194
20160344165
2016-11-24

Corona ignition device with improved seal

 #195
20160344164
2016-11-24

Spark plug with improved seal

 #196
20160301194
2016-10-13

SPARK PLUG ELECTRODE TRIMMING TOOL FOR RACING VEHICLES

 #197
20160268781
2016-09-15

Method for manufacturing spark plug

 #198
20160218489
2016-07-28

IGNITER TIP WITH COOLING PASSAGE

 #199
20160218488
2016-07-28

Method and tooling for making an insulator for a condition sensing spark plug

 #200
20160207095
2016-07-21

Manufacturing method of metal shell formed body for spark plug, manufacturing method of metal shell for spark plug, and spark plug manufacturing method

 #201
20160160833
2016-06-09

Radiation devices

 #202
20160156158
2016-06-02

Wire ground electrode spark plug for super flow

 #203
20160141842
2016-05-19

Method of manufacturing an ignition plug

 #204
20160107221
2016-04-21

Method of producing threaded member, method of producing spark plug, and apparatus for producing threaded member

 #205
20160105000
2016-04-14

Spark plug

 #206
20160064903
2016-03-03

Spark plug for internal combustion engine and method of manufacturing spark plug

 #207
20160043531
2016-02-11

Spark plug with improved seal

 #208
20160039712
2016-02-11

Corona ignition device with improved seal

 #209
20150357796
2015-12-10

Spark plug and method of manufacturing the same

 #210
20150340847
2015-11-26

Manufacturing method of spark plug

 #211
20150340842
2015-11-26

Spark plug, and production method therefor

 #212
20150325983
2015-11-12

Electrode beam welded spark plugs for industrial electrodes

 #213
20150322892
2015-11-12

Restartable ignition devices, systems, and methods thereof

 #214
20150311682
2015-10-29

Method of applying a coating to a spark plug insulator

 #215
20150270688
2015-09-24

Shrink fit ceramic center electrode

 #216
20150236482
2015-08-20

Spark plug having firing pad

 #217
20150228384
2015-08-13

Composition for and method of making an insulator for a spark plug

 #218
20150145402
2015-05-28

Spark plug and manufacturing method thereof

 #219
20150130345
2015-05-14

Spark plug and method of manufacturing spark plug

 #220
20150111458
2015-04-23

Method of making composite spark plug with capacitor

 #221
20150102721
2015-04-16

Spark plug with ceramic electrode tip

 #222
20150102720
2015-04-16

Spark plug

 #223
20150091433
2015-04-02

Spark plug having improved ground electrode orientation and method of forming

 #224
20150068025
2015-03-12

Igniter assembly including arcing reduction features

 #225
20150048733
2015-02-19

Ceramic electrode including a perovskite or spinel structure for an ignition device and method of manufacturing

 #226
20150040851
2015-02-12

Valve controlled combustion system

 #227
20150031263
2015-01-29

METHOD OF CONSTRUCTING A NEW TYPE OF SPARK PLUG

 #228
20150022074
2015-01-22

Spark plug having an embedded tip that is prevented from detachment due to thermal stress

 #229
20140361679
2014-12-11

Spark plug for internal combustion engine and method of manufacturing the same

 #230
20140328002
2014-11-06

Ignition coil assembly with extension for electrical connection of an ignition plug

 #231
20140327999
2014-11-06

Corona ignition with hermetic combustion seal

 #232
20140310947
2014-10-23

Method for producing a corona ignition device

 #233
20140292178
2014-10-02

Spark plug having a side-mounted ground electrode

 #234
20140285083
2014-09-25

Spark plug having long service life

 #235
20140268480
2014-09-18

High voltage connection sealing method for corona ignition coil

 #236
20140265815
2014-09-18

Spark plug and method of manufacturing the same

 #237
20140265814
2014-09-18

Spark plug with laser keyhole weld attaching ground electrode to shell

 #238
20140265813
2014-09-18

Spark plug having multi-layer sparking component attached to ground electrode

 #239
20140265812
2014-09-18

Method of manufacturing spark plug electrode material

 #240
20140261270
2014-09-18

Wear protection features for corona igniter

 #241
20140239796
2014-08-28

Method of capacitive discharge welding firing tip to spark plug electrode

 #242
20140225497
2014-08-14

PRECHAMBER MODULE FOR A LASER SPARK PLUG AND METHOD FOR PRODUCING SAME

 #243
20140225496
2014-08-14

Spark plug and method of manufacturing the same

 #244
20140220234
2014-08-07

Method for coating spark plug threads with a polytetrafluoroethylene mixutre

 #245
20140210336
2014-07-31

Ignition plug and method of manufacturing the same

 #246
20140210334
2014-07-31

Spark plug having firing pad

 #247
20140204198
2014-07-24

Inspection device for article being inspected, spark plug inspection method, and method for manufacturing spark plug

 #248
20140203701
2014-07-24

Electrode for a spark plug and method for its production

 #249
20140194026
2014-07-10

Manufacturing method of main metal fitting for spark plug and manufacturing method of spark plug

 #250
20140184054
2014-07-03

Clad Electrode for Spark Plug and Method For Manufacturing Same

 #251
20140141679
2014-05-22

Method of manufacturing spark plug

 #252
20140138122
2014-05-22

Extruded insulator for spark plug and method of making the same

 #253
20140134912
2014-05-15

Spark plug

 #254
20140131927
2014-05-15

Anti-fouling spark plug and method of making

 #255
20140125214
2014-05-08

Spark plug electrode material and spark plug

 #256
20140111213
2014-04-24

Apparatus and method for static testing a spark plug assembled in an internal combustion engine including cracked ceramic insulator detection

 #257
20140103792
2014-04-17

Electrode material for a spark plug and method of making the same

 #258
20140083982
2014-03-27

Welding system for attaching firing tips to spark plug electrodes

 #259
20140077683
2014-03-20

Spark plug with ceramic electrode tip

 #260
20140065915
2014-03-06

Method for manufacturing spark plug

 #261
20140062284
2014-03-06

Spark plug with an improved separation resistance of a noble metal tip

 #262
20140042892
2014-02-13

Spark plug having firing pad

 #263
20140015398
2014-01-16

Spark plug and production method therefor

 #264
20140011417
2014-01-09

Method for manufacturing spark plug

 #265
20130344765
2013-12-26

Method of manufacturing a ruthenium-based spark plug electrode material into a desired form and a ruthenium-based material for use in a spark plug

 #266
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Spark plug manufacturing method

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Method of making ruthenium-based material for spark plug electrode

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Spark plug

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Manufacturing method for spark plug

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Spark plug and method of manufacturing the same

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Ceramic electrode, ignition device therewith and methods of construction thereof

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Short-circuit prevention in an RF spark plug

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Spark plug with ground electrode plateau and method of making the same

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Method and device for manufacturing spark plug

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Spark plug for internal combustion engine and method for manufacturing same

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Laser welded spark plug electrode and method of forming the same

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Spark plug having fusion zone

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Spark plug and manufacturing method therefor

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Method of forming a spark plug

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High power semi-surface gap plug

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METHOD OF MANUFACTURING A SPARK PLUG HAVING ELECTRODE CAGE SECURED TO THE SHELL

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Spark plug with ring member coupled to center electrode thereof

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Method of producing a spark gap for an electrode support using sacrificial material

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Spark plug electrode, method for producing same, spark plug, and method for producing spark plug

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Spark plug and manufacturing method for same

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Method of manufacturing electrode complex for forming electrode of spark plug, and method of manufacturing spark plug

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Insulator strength by seat geometry

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Electron beam welded electrode for industrial spark plugs

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Enhanced method of sensing ionization current in spark ignition internal combustion engines and related spark plug structures

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Spark plug electrode and spark plug manufacturing method

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Prechamber sparkplug

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Assembly of spark plug and engine main body

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Spark plug having ground electrode tip attached to free end surface of ground electrode

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Metallic insulator coating for high capacity spark plug

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Method of manufacturing spark plug

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Spark plug including electrodes with low swelling rate and high corrosion resistance

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Manufacturing method for electric component and electrical component

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Corona igniter including temperature control features

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Spark plug for internal combustion engine and method of manufacturing the spark plug