ClassID:

216273

H01T13/20 - page 2 - CPC Classification

Classification description:

Sparking plugs characterised by features of the electrodes or insulation

Recent Application in this class:
#301
20090079319
2009-03-26

Spark plug structure for improved ignitability

#302
20090079318
2009-03-26

Spark Plug

#303
20090066211
2009-03-12

Method for manufacturing a spark plug having a laterally oriented ground electrode

#304
20090026910
2009-01-29

Spark plug

#305
20090009048
2009-01-08

Spark plug

#306
20080314354
2008-12-25

Spark plug and cylinder head assembly ensuring reliable ignition of air/fuel mixture

#307
20080272683
2008-11-06

Combination igniter and sensor for an internal combustion engine

#308
20080136305
2008-06-12

Spark plug designed to minimize drop in insulation resistance

#309
20080092839
2008-04-24

Spark plug with stream shaper to shape tumble vortex into desired stream in combustion chamber

#310
20080061670
2008-03-13

Spark plug

#311
20080054777
2008-03-06

Extension spark plug

#312
20080042541
2008-02-21

MICRO-IGNITOR WITH FASTENER FOR A COMBUSTION SYSTEM

#313
20080042540
2008-02-21

Micro-Ignitor For A Combustion System

#314
20070290596
2007-12-20

Small diameter/long reach spark plug

#315
20070290595
2007-12-20

Small diameter/long reach spark plug with improved insulator design

#316
20070290592
2007-12-20

Small diameter/long reach spark plug with rimmed hemispherical sparking tip

#317
20070283916
2007-12-13

Plasma Iginiton Method and Device for Igniting Fuel/Air Mixtures in Internal Combustion Engines

#318
20070278924
2007-12-06

Low cost spark plug manufactured from conductive loaded ceramic-based materials

#319
20070252503
2007-11-01

Spark plug having a reference electrode and an elongated electrode

#320
20070236125
2007-10-11

SPARK PLUG

#321
20070236124
2007-10-11

SPARK PLUG

#322
20070236123
2007-10-11

Spark plug having spark portion provided with a base material and a protective material

#323
20070228915
2007-10-04

Spark plug used for an internal-combustion engine and a method for manufacturing the same

#324
20070222351
2007-09-27

Spark plug

#325
20070222350
2007-09-27

SPARK PLUG

#326
20070216278
2007-09-20

Spark plug for internal combustion engine and related manufacturing method

#327
20070216277
2007-09-20

Spark plug for internal combustion engine

#328
20070216276
2007-09-20

Spark plug for internal combustion engine and related manufacturing method

#329
20070216275
2007-09-20

Spark plug for use in an internal-combustion engine with a bilayer ground electrode

#330
20070210688
2007-09-13

Spark plug having a rear-end portion of a threaded portion that has a higher hardness than a crimp portion and method of manufacturing the same

#331
20070194681
2007-08-23

Spark plug designed to have enhanced spark resistance and oxidation resistance

#332
20070188065
2007-08-16

Spark plug for internal combustion engine

#333
20070188064
2007-08-16

Metallic insulator coating for high capacity spark plug

#334
20070188063
2007-08-16

Metallic insulator coating for high capacity spark plug

#335
20070159046
2007-07-12

Spark plug for internal-combustion engines

#336
20070132354
2007-06-14

Spark plugs and methods of making the same

#337
20070130751
2007-06-14

Method of forming a spark plug with multi-layer firing tip

#338
20070114900
2007-05-24

Spark plug with multi-layer firing tip

#339
20070114899
2007-05-24

Spark plug with multi-layer firing tip

#340
20070114898
2007-05-24

Plasma jet spark plug and ignition system for the same

#341
20070103046
2007-05-10

Spark plug having precious metal pad attached to ground electrode and method of making same

#342
20070069618
2007-03-29

Spark plug with welded sleeve on electrode

#343
20070057613
2007-03-15

Erosion resistant materials for spark plug components

#344
20070054581
2007-03-08

Method for regulating aground electrode position in spark plug

#345
20070052336
2007-03-08

Spark plug

#346
20070040487
2007-02-22

Spark plug

#347
20060276097
2006-12-07

Method for securing a metal noble tip to an electrode of a spark plug using a resistance and laser welding process

#348
20060267469
2006-11-30

Dual-spark pre-chambered spark igniter

#349
20060220512
2006-10-05

Spark plug requiring low discharge voltage and having high self-cleaning capability

#350
20060220511
2006-10-05

Spark plug having ground electrode protruding member with inner and outer edges

#351
20060213474
2006-09-28

Spark plug and internal combustion engine equipped with the spark plug

#352
20060202599
2006-09-14

Spark plug which can prevent lateral sparking

#353
20060150960
2006-07-13

Spark plug with voltage amplifier and conical/hemi-spherical spark chamber

#354
20060137642
2006-06-29

Plasma jet spark plug

#355
20060113883
2006-06-01

Compact structure of spark plug designed to ensure desired heat range

#356
20060055299
2006-03-16

Spark plug with increased durability and carbon fouling resistance

#357
20060055298
2006-03-16

Spark plug for internal combustion engine

#358
20060055297
2006-03-16

Spark plug with increased durability and carbon fouling resistance

#359
20060042610
2006-03-02

Spark plug with increased durability

#360
20060028108
2006-02-09

Spark plug with high capability to ignite air-fuel mixture

#361
20060028106
2006-02-09

Ignition device having a reflowed firing tip and method of making

#362
20050285495
2005-12-29

Spark plug with easy-to-recognize identification marks

#363
20050264154
2005-12-01

Spark electrode assembly

#364
20050264153
2005-12-01

Spark plug with a plurality of ground electrodes

#365
20050264151
2005-12-01

Spark plug

#366
20050208862
2005-09-22

Low cost spark plug manufactured from conductive loaded resin-based materials

#367
20050206289
2005-09-22

Low cost spark plug manufactured from conductive loaded resin-based materials

#368
20050179353
2005-08-18

Spark plug having ground electrode with high strength and high heat resistance

#369
20050174025
2005-08-11

Spark plug designed to ensure high strength of electrode joint and production method thereof

#370
20050168120
2005-08-04

Spark plug with high insulation properties and high capability to ignite air-fuel mixture

#371
20050116598
2005-06-02

Spark plug

#372
20050110381
2005-05-26

Spark plug

#373
20050067933
2005-03-31

Spark plug having noble metal tip

#374
20050052107
2005-03-10

Spark plug element having defined dimensional parameters for its insulator component

#375
20050016485
2005-01-27

Spark plug and ignition apparatus using same

#376
18082082
2023-11-14

Ignition system for internal combustion engine

#377
16877897
2020-10-20

Spark plug

#378
16841991
2020-09-08

Spark plug that suppresses pre-ignition and misfires

#379
16837154
2020-08-25

Spark plug

#380
16218934
2020-04-14

Corona ignition assembly including a high voltage connection and method of manufacturing the corona ignition assembly

#381
15974889
2018-10-16

Method of manufacturing spark plug

#382
14950486
2016-04-19

Spark plug for internal combustion engine

#383
14452802
2015-06-09

Ceramic for ignition device insulator with low relative permittivity