ClassID:

216273

H01T13/20 - CPC Classification

Classification description:

Sparking plugs characterised by features of the electrodes or insulation

Sub-classes:
Recent Application in this class:
#1
20250087973
2025-03-13

PRE-CHAMBER SPARK PLUG HAVING IMPROVED HEATING MANAGEMENT

#2
20250007249
2025-01-02

Spark plug

#3
20240332916
2024-10-03

SPARK PLUG

#4
20240235168
2024-07-11

SPARK PLUG

#5
20240136804
2024-04-25

Spark plug

#6
20230327407
2023-10-12

IGNITION DEVICE

#7
20230246425
2023-08-03

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

#8
20230008031
2023-01-12

Spark plug

#9
20220154929
2022-05-19

Flame detection and ignition device

#10
20220077661
2022-03-10

Spark plug

#11
20220077660
2022-03-10

System and method for spark plug identification and engine monitoring

#12
20220059999
2022-02-24

SPARK PLUG ELECTRODE AND METHOD OF MANUFACTURING THE SAME

#13
20210348588
2021-11-11

Spark plug heat up method via transient control of the spark discharge current

#14
20210257816
2021-08-19

Spark plug that has an insulator less likely to be damaged

#15
20210242665
2021-08-05

Electrode material spark plug electrode, and spark plug

#16
20210075197
2021-03-11

Spark plug coupler

#17
20210039277
2021-02-11

Method of producing insulator for spark plug

#18
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

#19
20210021105
2021-01-21

Spark plug

#20
20200358260
2020-11-12

Spark plug

#21
20200358259
2020-11-12

Spark plug with a plug cover for improving fuel economy

#22
20200335948
2020-10-22

Spark plug to be mounted on an internal combustion engine having a water spray injector

#23
20200313402
2020-10-01

Spark plug

#24
20200220336
2020-07-09

Flame-ejecting spark plug, and internal combustion engine and automobile having same

#25
20200203933
2020-06-25

Spark plug for increasing combustion speed of gasoline engine

#26
20200185889
2020-06-11

Pre-chamber spark plug

#27
20200119529
2020-04-16

Spark plug

#28
20200099198
2020-03-26

Spark plug of internal combustion engine

#29
20200072142
2020-03-05

Spark plug configurations for dedicated-EGR engines

#30
20200036165
2020-01-30

Spark plug for internal combustion engine

#31
20200036164
2020-01-30

Spark plug of internal combustion engine

#32
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

#33
20190383258
2019-12-19

Spark plug

#34
20190379181
2019-12-12

Spark plug and ignition device of internal combustion engine

#35
20190372313
2019-12-05

Spark plug electrode wearing rate estimating method and apparatus

#36
20190334322
2019-10-31

Spark plug

#37
20190326733
2019-10-24

Spark plug

#38
20190309707
2019-10-10

SPARK PLUG AND ASSOCIATED PROPELLANT IGNITION SYSTEM

#39
20190237943
2019-08-01

Spark plug having a recess formed in an electrode

#40
20190229501
2019-07-25

Spark plug electrode assembly and method of manufacturing same

#41
20190214791
2019-07-11

Spark plug for internal combustion engine

#42
20190165548
2019-05-30

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

#43
20190137100
2019-05-09

Device for controlling the ignition of gas burners of a domestic cooking appliance

#44
20190131776
2019-05-02

Spark plug

#45
20190103732
2019-04-04

Production method of spark plug

#46
20190044310
2019-02-07

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

#47
20190040835
2019-02-07

Ignition control apparatus

#48
20190032623
2019-01-31

Internal combustion engine and method of igniting a fuel

#49
20180366918
2018-12-20

Spark plug

#50
20180366917
2018-12-20

Spark plug

#51
20180331511
2018-11-15

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

#52
20180331508
2018-11-15

Ground electrode pad for spark plug

#53
20180331507
2018-11-15

SPARK IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE AND CENTRAL ELECTRODE ASSEMBLY THEREFORE

#54
20180331506
2018-11-15

Ignition plug

#55
20180323584
2018-11-08

Spark plug

#56
20180323582
2018-11-08

Spark plug having an increased tightening torque

#57
20180313317
2018-11-01

IGNITION PLUG AND IGNITION DEVICE

#58
20180301878
2018-10-18

Method of manufacturing spark plug

#59
20180288864
2018-10-04

Ignition plug

#60
20180287349
2018-10-04

Spark plug

#61
20180272563
2018-09-27

Method of producing spark plug insulator

#62
20180248340
2018-08-30

Spark plug

#63
20180219356
2018-08-02

IGNITION PLUG FOR INTERNAL COMBUSTION ENGINE

#64
20180205204
2018-07-19

Ignition apparatus

#65
20180191138
2018-07-05

Spark plug

#66
20180175592
2018-06-21

Spark plug

#67
20180166863
2018-06-14

Spark plug

#68
20180152006
2018-05-31

Spark plug

#69
20180138665
2018-05-17

Spark plug and semi-finished product thereof

#70
20180123322
2018-05-03

Multi-electrode spark plug

#71
20180054044
2018-02-22

Spark plug

#72
20180054043
2018-02-22

Spark plug and method for manufacturing same

#73
20180019578
2018-01-18

Spark plug

#74
20180019577
2018-01-18

Remanufactured sparkplug and sparkplug remanufacturing method

#75
20180013267
2018-01-11

Method for manufacturing spark plug

#76
20180006435
2018-01-04

Supply circuit for a corona ignition device

#77
20170353013
2017-12-07

Spark plug

#78
20170346260
2017-11-30

Spark plugs having a center electrode

#79
20170346259
2017-11-30

Spark plug capable of restraining lateral sparking

#80
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

#81
20170333977
2017-11-23

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

#82
20170326765
2017-11-16

Spark plug insulator production method, insulator, molding die

#83
20170324222
2017-11-09

Ignition plug

#84
20170292492
2017-10-12

Ignition control device and ignition control method for internal combustion engine

#85
20170284340
2017-10-05

Spark plug and associated propellant ignition system

#86
20170271852
2017-09-21

Ignition plug

#87
20170250523
2017-08-31

Method for manufacturing insulator for spark plug

#88
20170237235
2017-08-17

Spark plug having firing pad

#89
20170179687
2017-06-22

Spark plug

#90
20170170637
2017-06-15

Inspection method and apparatus of spark plug insulator

#91
20170167360
2017-06-15

Internal combustion engine

#92
20170163012
2017-06-08

Cap shielded ignition system

#93
20170152829
2017-06-01

SPARK PLUG AND SOCKET

#94
20170149216
2017-05-25

Corona ignition device and method for the production thereof

#95
20170141546
2017-05-18

Method for manufacturing spark plug

#96
20170077681
2017-03-16

Spark plug

#97
20170077680
2017-03-16

Multi-electrode spark plug

#98
20170033539
2017-02-02

Spark plug

#99
20170033538
2017-02-02

Spark plug

#100
20170025826
2017-01-26

Method for producing a spark plug

#101
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

#102
20170025821
2017-01-26

Spark plug

#103
20170018909
2017-01-19

Spark plug

#104
20170005456
2017-01-05

High Efficiency Spark Plug

#105
20160365707
2016-12-15

Spark plug

#106
20160329688
2016-11-10

Spark plug having an electrode structure that effectively suppresses flashover

#107
20160305393
2016-10-20

Plasma ignition device

#108
20160285240
2016-09-29

Spark plug

#109
20160276810
2016-09-22

Cap shielded ignition system

#110
20160273509
2016-09-22

Spark plug and plasma generating device

#111
20160268781
2016-09-15

Method for manufacturing spark plug

#112
20160233648
2016-08-11

Spark plug for voltage resistance and suppression of side sparking and oxidation

#113
20160226224
2016-08-04

Spark plug insulator having an anti-fouling coating and methods for minimizing fouling

#114
20160218488
2016-07-28

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

#115
20160218487
2016-07-28

Spark plug

#116
20160218486
2016-07-28

Spark plug

#117
20160218485
2016-07-28

Spark plug

#118
20160215710
2016-07-28

Ignition plug for a cylinder in a combustion engine

#119
20160204579
2016-07-14

Spark plug

#120
20160157332
2016-06-02

Non-thermal equilibrium plasma ignition plug and non-thermal equilibrium plasma ignition device

#121
20160105000
2016-04-14

Spark plug

#122
20160087410
2016-03-24

Spark plug

#123
20160079739
2016-03-17

Spark plug and method for manufacturing spark plug

#124
20160064904
2016-03-03

Spark plug with interference-suppression element

#125
20160053733
2016-02-25

Spark plug for internal combustion engine

#126
20160020583
2016-01-21

Ignition system and ignition plug that reduces the required voltage to sustain an engine, while improving ignition performance and combustability

#127
20160006220
2016-01-07

Spark plug

#128
20160006219
2016-01-07

Spark plug for internal combustion engine

#129
20150372458
2015-12-24

Spark plug

#130
20150340843
2015-11-26

Spark plug

#131
20150340842
2015-11-26

Spark plug, and production method therefor

#132
20150333487
2015-11-19

Ignition plug

#133
20150322892
2015-11-12

Restartable ignition devices, systems, and methods thereof

#134
20150311682
2015-10-29

Method of applying a coating to a spark plug insulator

#135
20150270688
2015-09-24

Shrink fit ceramic center electrode

#136
20150270687
2015-09-24

SPARK PLUG AND IGNITION SYSTEM

#137
20150236481
2015-08-20

Corona ignition device

#138
20150228384
2015-08-13

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

#139
20150222095
2015-08-06

Spark plug reducing metal shell to improve fouling resistance

#140
20150214697
2015-07-30

Spark plug

#141
20150207299
2015-07-23

Spark plug

#142
20150200522
2015-07-16

Corona ignition device with gas-tight HF plug connector

#143
20150194791
2015-07-09

Spark plug

#144
20150192099
2015-07-09

SPARK PLUG AND INTERNAL COMBUSTION ENGINE PROVIDED THEREWITH

#145
20150188292
2015-07-02

High energy ignition spark igniter

#146
20150180215
2015-06-25

Spark plug

#147
20150176520
2015-06-25

SPARK PLUG

#148
20150171599
2015-06-18

Spark plug

#149
20150145403
2015-05-28

Spark plug

#150
20150145402
2015-05-28

Spark plug and manufacturing method thereof

#151
20150144115
2015-05-28

Ignition device

#152
20150116888
2015-04-30

Corona ignition device

#153
20150102721
2015-04-16

Spark plug with ceramic electrode tip

#154
20150061485
2015-03-05

Spark plug

#155
20150040575
2015-02-12

Fuel igniter assembly having heat-dissipating element and methods of using same

#156
20150035427
2015-02-05

Spark plug construction

#157
20150022074
2015-01-22

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

#158
20140361678
2014-12-11

Spark plug for internal-combustion engine

#159
20140361677
2014-12-11

Spark plug for internal combustion engine

#160
20140354137
2014-12-04

Spark plug

#161
20140346945
2014-11-27

Spark plug

#162
20140328002
2014-11-06

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

#163
20140328001
2014-11-06

Ignition plug and ignition system

#164
20140326206
2014-11-06

Ignition plug and internal-combustion engine

#165
20140320010
2014-10-30

Spark plug

#166
20140318490
2014-10-30

Spark plug for internal combustion engines and mounting structure for the spark plug

#167
20140292179
2014-10-02

High-frequency plasma spark plug

#168
20140292178
2014-10-02

Spark plug having a side-mounted ground electrode

#169
20140292177
2014-10-02

Lateral Traverse Discharge Spark Plug

#170
20140265816
2014-09-18

Spark plug for internal combustion engines and mounting structure for the spark plug

#171
20140252941
2014-09-11

High efficiency spark plug

#172
20140246972
2014-09-04

Spark plug

#173
20140239798
2014-08-28

Ignition plug

#174
20140239796
2014-08-28

Method of capacitive discharge welding firing tip to spark plug electrode

#175
20140232264
2014-08-21

High-frequency radiation plug

#176
20140230790
2014-08-21

Electrodes for multi-point ignition using single or multiple transient plasma discharges

#177
20140226251
2014-08-14

Ignition system

#178
20140210336
2014-07-31

Ignition plug and method of manufacturing the same

#179
20140210335
2014-07-31

Spark plug

#180
20140202413
2014-07-24

Spark ignition device for an internal combustion engine and central electrode assembly therefore

#181
20140174416
2014-06-26

Ignition system

#182
20140167595
2014-06-19

Ignition plug having a rear trunk portion that provides sufficient strength

#183
20140159564
2014-06-12

Spark plug

#184
20140152169
2014-06-05

Spark plug comprising early recovery from a fuel bridge

#185
20140139098
2014-05-22

Spark plug having fusion zone

#186
20140131927
2014-05-15

Anti-fouling spark plug and method of making

#187
20140117833
2014-05-01

Spark plug

#188
20140116370
2014-05-01

Corona ignition device and method for producing an ignition head for a corona ignition device

#189
20140116369
2014-05-01

Corona ignition device and method for producing an ignition head for a corona ignition device

#190
20140111079
2014-04-24

Spark plug

#191
20140111078
2014-04-24

Spark plug having firing pad

#192
20140097739
2014-04-10

Spark plug

#193
20140091707
2014-04-03

Ignition plug

#194
20140083386
2014-03-27

Spark plug for an internal combustion engine

#195
20140077683
2014-03-20

Spark plug with ceramic electrode tip

#196
20140076274
2014-03-20

Time-varying spark current magnitude to improve spark plug performance and durability

#197
20140042893
2014-02-13

Spark plug having center electrode tip of varying widths

#198
20140042892
2014-02-13

Spark plug having firing pad

#199
20140021853
2014-01-23

Spark plug for an internal combustion engine

#200
20140021852
2014-01-23

Water resistant direct spark igniter

#201
20140020667
2014-01-23

Spark plug for internal combustion engine and ignition system having spark plug

#202
20140015398
2014-01-16

Spark plug and production method therefor

#203
20140011417
2014-01-09

Method for manufacturing spark plug

#204
20130334954
2013-12-19

Spark plug and method of manufacturing the same

#205
20130328477
2013-12-12

High-frequency spark plug with center electrode and terminal electrode in direct contact

#206
20130327013
2013-12-12

Spark plug for combustion chamber of a gas turbine engine

#207
20130313962
2013-11-28

Spark plug

#208
20130307402
2013-11-21

Spark plug

#209
20130293089
2013-11-07

Shrink-fit ceramic center electrode

#210
20130293087
2013-11-07

Spark plug

#211
20130291821
2013-11-07

Combustion chamber structure by using preheating net and spark plug to ignite

#212
20130285534
2013-10-31

Spark plug

#213
20130285532
2013-10-31

Spark plug, and method for manufacturing spark plug

#214
20130264935
2013-10-10

Electrode-attached insulator and spark plug

#215
20130249380
2013-09-26

Spark plug

#216
20130241409
2013-09-19

NON AXIS SYMMETRIC SPARK PLUG WITH OFFSET BORE

#217
20130234580
2013-09-12

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

#218
20130233291
2013-09-12

Ignition device and structure for mounting same

#219
20130229102
2013-09-05

SPARK PLUG

#220
20130221831
2013-08-29

Laser welded spark plug electrode and method of forming the same

#221
20130214672
2013-08-22

Fouling resistant spark plug

#222
20130214670
2013-08-22

Spark plug having fusion zone

#223
20130214668
2013-08-22

Spark plug for internal combustion engine

#224
20130200773
2013-08-08

Spark plug with improved resistance to spark-induced erosion of the ground electrode tip

#225
20130196272
2013-08-01

High power semi-surface gap plug

#226
20130193834
2013-08-01

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

#227
20130193833
2013-08-01

Spark plug with ring member coupled to center electrode thereof

#228
20130187531
2013-07-25

Spark plug

#229
20130187530
2013-07-25

Method of producing an electrode support using brazing

#230
20130187529
2013-07-25

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

#231
20130175922
2013-07-11

Spark plug and manufacturing method for same

#232
20130162135
2013-06-27

Spark plug having a crimp portion in the metal shell to firmly engage with the ceramic insulator

#233
20130147339
2013-06-13

Insulator strength by seat geometry

#234
20130099652
2013-04-25

Spark plug assembly for enhanced ignitability

#235
20130098324
2013-04-25

Assembly of spark plug and engine main body

#236
20130088140
2013-04-11

Plasma jet ignition plug

#237
20130065474
2013-03-14

Metallic insulator coating for high capacity spark plug

#238
20130038197
2013-02-14

Spark plug designed to increase service life thereof

#239
20130033188
2013-02-07

Ignition plug and ignition apparatus

#240
20130009537
2013-01-10

Igniter for an internal combustion engine

#241
20130009535
2013-01-10

Spark plug

#242
20130002120
2013-01-03

Spark plug, metal shell for spark plug, and method of manufacturing spark plug

#243
20120325520
2012-12-27

High thread spark plug with undercut insulator

#244
20120312268
2012-12-13

IGNITION COMPONENT

#245
20120299460
2012-11-29

Spark plug with enhanced breakage resistance for the ground electrode

#246
20120299457
2012-11-29

Anti-fouling spark plug and method of making

#247
20120285409
2012-11-15

IGNITER

#248
20120169207
2012-07-05

Spark plug

#249
20120169205
2012-07-05

Anti-fouling spark plug and method of making

#250
20120161605
2012-06-28

Spark plug comprising enhanced contamination-resisting and heat-resisting properties

#251
20120153800
2012-06-21

Spark plug with a center electrode having a space-forming portion

#252
20120142244
2012-06-07

Method of manufacturing center electrode and spark plug

#253
20120139405
2012-06-07

Anti-fouling spark plug and method of making

#254
20120126682
2012-05-24

Spark plug with ceramic electrode tip

#255
20120125279
2012-05-24

Pre-chamber spark plug with tubular electrode and method of manufacturing same

#256
20120112620
2012-05-10

Non-thermal plasma ignition arc suppression

#257
20120110975
2012-05-10

Igniter with integral pressure sensing line

#258
20120086326
2012-04-12

Attaching a precious metal component to spark plug electrode and spark plug having the same

#259
20120062098
2012-03-15

Method of manufacturing a spark plug having electrode cage secured to the shell

#260
20120056522
2012-03-08

Corona ignition device and method for its manufacture

#261
20120038263
2012-02-16

Spark plug having shaped insulator

#262
20120025691
2012-02-02

Spark plug

#263
20120007488
2012-01-12

Plasma jet ignition plug

#264
20120001533
2012-01-05

Spark plug and its manufacturing method

#265
20110316408
2011-12-29

Spark plug for internal combustion engine having a ground electrode with a protrusion having improved erosion resistance and method of manufacturing same

#266
20110297116
2011-12-08

Igniter for igniting a fuel/air mixture in a combustion chamber, in particular in an internal combustion engine, by creating a corona discharge

#267
20110279008
2011-11-17

Spark plug

#268
20110241525
2011-10-06

High thread spark plug with undercut insulator

#269
20110241521
2011-10-06

SPARK PLUG ELECTRODE AND METHOD OF MANUFACTURE

#270
20110221327
2011-09-15

Plasma-jet spark plug and ignition system

#271
20110215703
2011-09-08

Pre-chamber spark plug

#272
20110193471
2011-08-11

Spark plug and manufacturing method therefor

#273
20110193468
2011-08-11

SPARK PLUG FOR A MODEL ENGINE

#274
20110181168
2011-07-28

Spark plug having specific configuration of packing area

#275
20110169396
2011-07-14

Semiconductor ceramic

#276
20110139107
2011-06-16

Spark ignition device for an internal combustion engine and central electrode assembly therefor

#277
20110126789
2011-06-02

Excess demand voltage relief spark plug for vehicle ignition system

#278
20110050069
2011-03-03

SPARK PLUG

#279
20110025186
2011-02-03

Spark plug for internal combustion engine

#280
20110012499
2011-01-20

Spark plug center electrode with reduced cover portion thickness

#281
20110000453
2011-01-06

Spark plug

#282
20100314987
2010-12-16

Spark plug

#283
20100301733
2010-12-02

Spark plug having a reduced physical volume

#284
20100264804
2010-10-21

Spark plug

#285
20100225222
2010-09-09

Flexible spark plug

#286
20100201245
2010-08-12

Spark plug having a plastic upper insulator and method of construction

#287
20100187967
2010-07-29

Spark plug electrode and method of making

#288
20100141110
2010-06-10

Spark plug having a metallic shell with defined relationship between its outer and inner surfaces

#289
20100133978
2010-06-03

Spark plug for internal combustion engine

#290
20100133976
2010-06-03

Maxx fire spark plug

#291
20100117507
2010-05-13

Spark plug having self-cleaning of carbon deposits

#292
20100101521
2010-04-29

Spark plug and internal combustion engine provided with the same

#293
20100072874
2010-03-25

SPARK PLUG

#294
20090309474
2009-12-17

Spark plug

#295
20090189506
2009-07-30

Cold foul resistant spark plug

#296
20090189505
2009-07-30

Dielectric enhanced partial thread spark plug

#297
20090189502
2009-07-30

Method of producing spark plug, and spark plug

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20090179544
2009-07-16

Spark plug with multi-layer firing tip

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20090139479
2009-06-04

Ignition spark plug

#300
20090096344
2009-04-16

Sparkplug with precision gap