ClassID:

201763

H01F38/12 - CPC Classification

Classification description:

Adaptations of transformers or inductances for specific applications or functions Ignition, e.g. for IC engines

Sub-classes:
Recent Application in this class:
#1
20260148891
2026-05-28

IGNITION COIL

#2
20260071603
2026-03-12

IGNITION COIL

#3
20260058054
2026-02-26

IGNITION COIL AND IGNITION DEVICE

#4
20250354533
2025-11-20

IGNITION COIL AND IGNITION DEVICE

#5
20250336600
2025-10-30

IGNITION COIL ASSEMBLY WITH INTERNAL DIAGNOSTIC FEATURES

#6
20250317030
2025-10-09

AIRCRAFT PISTON ENGINE MAGNETO AND IGNITION SYSTEM

#7
20250299875
2025-09-25

IGNITION COIL

#8
20250285806
2025-09-11

IGNITION COIL

#9
20250257683
2025-08-14

TUBULAR STRUCTURE ADAPTED TO AT LEAST PARTLY ENCLOSE A PENCIL COIL FOR INTERNAL COMBUSTION ENGINES

#10
20250146465
2025-05-08

ADAPTIVE SPARK ENERGY CONTROL

#11
20250022652
2025-01-16

IGNITION COIL SYSTEM

#12
20240274351
2024-08-15

IGNITION COIL

#13
20240194400
2024-06-13

IGNITION COIL DEVICE

#14
20240167445
2024-05-23

IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE

#15
20240102437
2024-03-28

Measuring a spark of a spark plug

#16
20240026850
2024-01-25

Dual energy ignition system with on time energy transfer and a method thereof

#17
20230395318
2023-12-07

Ignition coil for internal combustion engine

#18
20230358200
2023-11-09

METHOD AND APPARATUS TO CONTROL AN IGNITION SYSTEM

#19
20230313773
2023-10-05

Ignition coil and ignition device equipped with the same for internal combustion engine

#20
20230133293
2023-05-04

Control circuit for transistor with floating source node

#21
20230123021
2023-04-20

Spark coil with the lead terminal between flanges

#22
20230093588
2023-03-23

Ignition coil for internal combustion engine

#23
20230070763
2023-03-09

Multi-ignition coil control system

#24
20230035555
2023-02-02

Ignition coil control system and method

#25
20230003184
2023-01-05

Ignition coil unit

#26
20220415568
2022-12-29

IGNITION DEVICE

#27
20220368316
2022-11-17

Integrated circuit

#28
20220336149
2022-10-20

IGNITION COIL DEVICE FOR INTERNAL COMBUSTION ENGINE

#29
20220310307
2022-09-29

Ignition coil for use in internal combustion engine

#30
20220277894
2022-09-01

Ignition coil for internal combustion engine

#31
20220243694
2022-08-04

Ignition drive module

#32
20220076883
2022-03-10

Ignition coil for internal combustion engine

#33
20220028605
2022-01-27

Ignition system

#34
20220013283
2022-01-13

Ignition coil for internal combustion engine

#35
20210383965
2021-12-09

IGNITION SYSTEM

#36
20210383964
2021-12-09

Internal combustion engine use ignition device

#37
20210383963
2021-12-09

IGNITION COIL

#38
20210366651
2021-11-25

Ignition coil

#39
20210335537
2021-10-28

Ignition coil for internal combustion engine

#40
20210287850
2021-09-16

Ignition coil

#41
20210265107
2021-08-26

Ignition coil

#42
20210249187
2021-08-12

Ignition coil

#43
20210249186
2021-08-12

Ignition coil

#44
20210233704
2021-07-29

Ignition coil

#45
20210222663
2021-07-22

IGNITION COIL MOUNT FOR REDUCED VIBRATION

#46
20210203136
2021-07-01

Ignition device

#47
20210199083
2021-07-01

Ignition coil for an internal combustion engine and method for manufacturng the same

#48
20210134524
2021-05-06

Lamination stack for an ignition system

#49
20210118612
2021-04-22

Internal combustion engine ignition coil

#50
20210108605
2021-04-15

Circuit and method for a kickback-limited soft shutdown of a coil

#51
20210102521
2021-04-08

Ignition control system for internal combustion engine

#52
20210082618
2021-03-18

Ignition apparatus

#53
20210079881
2021-03-18

Ignition control device for internal combustion engine

#54
20210074473
2021-03-11

Internal combustion engine ignition device

#55
20210057150
2021-02-25

Ignition coil for internal combustion engine and production method for the same

#56
20210057148
2021-02-25

Ignition coil

#57
20210035732
2021-02-04

Internal-combustion-engine ignition coil apparatus

#58
20200395171
2020-12-17

Ignition coil provided with core cover including supporting structure

#59
20200395170
2020-12-17

High voltage ignition coil with improved insulating characteristics

#60
20200392933
2020-12-17

Ignition coil and ignition system for a vehicle

#61
20200381177
2020-12-03

IGNITION COIL DEVICE

#62
20200358263
2020-11-12

Ignition apparatus

#63
20200312544
2020-10-01

Ignition coil

#64
20200312543
2020-10-01

Ignition coil device for internal combustion engine

#65
20200224630
2020-07-16

IGNITION COIL

#66
20200219650
2020-07-09

Ignition coil

#67
20200203063
2020-06-25

Ignition device

#68
20200200138
2020-06-25

Ignition system

#69
20200176181
2020-06-04

Ignition coil

#70
20200176180
2020-06-04

Primary coil former for an ignition coil, and ignition coil with such a primary coil former

#71
20200173416
2020-06-04

Igniter assembly and igniter unit

#72
20200158071
2020-05-21

Ignition coil unit

#73
20200124289
2020-04-23

Ignition device for a gas cooking appliance

#74
20200013547
2020-01-09

Ignition coil including a center iron core and side iron cores

#75
20190392986
2019-12-26

Ignition coil for internal combustion engine

#76
20190353136
2019-11-21

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

#77
20190318861
2019-10-17

Ignition coil and method for the manufacture of an ignition coil

#78
20190311849
2019-10-10

Ignition apparatus

#79
20190288064
2019-09-19

Insulated-gate semiconductor device

#80
20190280464
2019-09-12

IGNITION CONTROL SYSTEM FOR A HIGH-VOLTAGE BATTERY SYSTEM

#81
20190279814
2019-09-12

Engine assembly with vibration-isolated ignition coil apparatus

#82
20190277214
2019-09-12

SYSTEM AND METHOD FOR BOOSTED NON-LINEAR IGNITION COIL

#83
20190214177
2019-07-11

Ignition coil

#84
20190190238
2019-06-20

Methods and apparatus for an ignition system

#85
20190189341
2019-06-20

Ignition coil for internal combustion engine and manufacturing method thereof

#86
20190162156
2019-05-30

Ignition coil for internal combustion engine

#87
20190157846
2019-05-23

Connector plug for connecting an ignition coil to a spark plug

#88
20190139700
2019-05-09

Ignition coil for internal combustion engine

#89
20190122815
2019-04-25

Ignition coil for internal combustion engine

#90
20190057808
2019-02-21

Ignition device

#91
20190043665
2019-02-07

SILICONE EXTENSION FOR AN IGNITION COIL FOR INTERNAL COMBUSTION ENGINES, IGNITION COIL COMPRISING SAID SILICONE EXTENSION AND METHOD OF ASSEMBLY FOR SAID IGNITION COIL

#92
20190035546
2019-01-31

Internal combustion engine ignition device

#93
20190003441
2019-01-03

Semiconductor device for internal combustion engine ignition

#94
20180366269
2018-12-20

Ignition coil for internal-combustion engine

#95
20180350516
2018-12-06

Ignition coil device for internal combustion engine

#96
20180342347
2018-11-29

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

#97
20180309268
2018-10-25

Ignition device for internal combustion engine

#98
20180294092
2018-10-11

Ignition coil for internal combustion engine

#99
20180278027
2018-09-27

High frequency discharge ignition device

#100
20180277302
2018-09-27

Ignition device

#101
20180274514
2018-09-27

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

#102
20180258901
2018-09-13

Ignition apparatus for internal combustion engine

#103
20180254144
2018-09-06

Ignition coil for internal combustion engine

#104
20180240589
2018-08-23

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

#105
20180238293
2018-08-23

Ignition device for internal combustion engine

#106
20180223791
2018-08-09

Ionization detector with ignition coil inductance shorting

#107
20180223790
2018-08-09

Ignition device

#108
20180205204
2018-07-19

Ignition apparatus

#109
20180190425
2018-07-05

Ignition Coil for Internal Combustion Engine

#110
20180163688
2018-06-14

Ignition coil for internal combustion engine

#111
20180151292
2018-05-31

Ignition coil for internal combustion engine

#112
20180109079
2018-04-19

Ignition coil for internal combustion engine

#113
20180108473
2018-04-19

Ignition coil for internal combustion engine

#114
20180097514
2018-04-05

Internal combustion engine igniter

#115
20180096786
2018-04-05

Ignition coil

#116
20180066624
2018-03-08

Ignition apparatus

#117
20180058414
2018-03-01

Multiple pulse ignition system control

#118
20180047503
2018-02-15

IGNITION DEVICE

#119
20180030947
2018-02-01

Shielded spark plug extension for conventional spark plugs

#120
20180030946
2018-02-01

Ignition coil having a winding form

#121
20180025837
2018-01-25

High voltage contact for an ignition coil

#122
20180025836
2018-01-25

Ignition coil

#123
20180025835
2018-01-25

Ignition coil for internal combustion engine

#124
20180015712
2018-01-18

Ignition coil and method of assembly

#125
20180013266
2018-01-11

Ignition device

#126
20180006435
2018-01-04

Supply circuit for a corona ignition device

#127
20170342954
2017-11-30

Ignition coil for internal combustion engine

#128
20170331261
2017-11-16

Ignition system for an internal combustion engine and a control method thereof

#129
20170328332
2017-11-16

Ignition coil for internal combustion engine

#130
20170321648
2017-11-09

Ignition coil for internal combustion engine

#131
20170309397
2017-10-26

Ignition coil for internal combustion engine

#132
20170301461
2017-10-19

Ignition coil for internal combustion engines

#133
20170294764
2017-10-12

High frequency discharge ignition apparatus

#134
20170284356
2017-10-05

Ignition apparatus for internal combustion engine

#135
20170268475
2017-09-21

Switch apparatus and ignition device

#136
20170263375
2017-09-14

Ignition coil for an internal combustion engine

#137
20170241393
2017-08-24

Internal combustion engine ignition coil and method for manufacturing internal combustion engine ignition coil

#138
20170218911
2017-08-03

Winding plan for a transformer of a step-up converter and ignition system for supplying a spark gap of an internal combustion engine with electrical power

#139
20170148564
2017-05-25

Automobile Ignition with Improved Coil Configuration

#140
20170117078
2017-04-27

Ignition apparatus for internal combustion engine

#141
20170114766
2017-04-27

Control apparatus and control method

#142
20170101918
2017-04-13

Fan cooled ignition coil method and apparatus

#143
20170040104
2017-02-09

Ignition coil for internal combustion engine

#144
20170030320
2017-02-02

Ignition apparatus for an internal-combustion engine

#145
20170018352
2017-01-19

Ignition coil for internal combustion engine

#146
20170016422
2017-01-19

Ignition coil for internal combustion engine

#147
20160365194
2016-12-15

Spark ignition transformer with a non-linear secondary current characteristic

#148
20160363108
2016-12-15

IGNITION SYSTEM WITH SPARK DISCHARGE TRUNCATION

#149
20160344166
2016-11-24

Corona ignition with self-tuning power amplifier

#150
20160327008
2016-11-10

HIGH-ENERGY IGNITION COIL

#151
20160312756
2016-10-27

ELECTRONICS MODULE FOR AN IGNITION UNIT

#152
20160211072
2016-07-21

Ignition coil for internal combustion engine

#153
20160160832
2016-06-09

Ignition system for spark ignition engines and method of operating same

#154
20160064138
2016-03-03

Ignition coil for internal combustion engine

#155
20160055966
2016-02-25

Ignition coil realizing a closed magnetic circuit and higher efficiency

#156
20160055962
2016-02-25

Ignition coil for internal combustion engine

#157
20160047349
2016-02-18

Internal combustion engine ignition device

#158
20160028215
2016-01-28

Internal combustion engine and ignition coil

#159
20150364246
2015-12-17

Ignition coil

#160
20150311681
2015-10-29

Motorcycle ignition coil assembly

#161
20150221435
2015-08-06

Method of manufacturing an ignition coil assembly

#162
20150167622
2015-06-18

Ignition coil and method of assembly

#163
20150136098
2015-05-21

Spark plug extension

#164
20150048914
2015-02-19

Ignition coil with molding mark

#165
20140360476
2014-12-11

Dual coil ignition system

#166
20140345582
2014-11-27

Ignition coil for internal combustion engine

#167
20140334061
2014-11-13

AUTOMOTIVE IGNITION COIL HAVING A CORE WITH AT LEAST ONE EMBEDDED PERMANENT MAGNET

#168
20140239838
2014-08-28

Ignition apparatus

#169
20140226253
2014-08-14

Ignition coil for internal combustion engine

#170
20140211365
2014-07-31

Corona ignition device

#171
20140209077
2014-07-31

Motorcycle ignition coil assembly

#172
20140165978
2014-06-19

Ignition coil

#173
20140102430
2014-04-17

Ignition coil for internal combustion engine

#174
20140085041
2014-03-27

Reactor

#175
20140080077
2014-03-20

Automotive ignition coil having a core with at least one embedded permanent magnet

#176
20140070717
2014-03-13

Connection device, igniter and ignition system

#177
20140053819
2014-02-27

Ignition device for spark ignition engines

#178
20140043717
2014-02-13

Ignition coil for internal combustion engine

#179
20140022038
2014-01-23

Coil system and housing

#180
20140020667
2014-01-23

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

#181
20130321975
2013-12-05

Ignition coil having integrated electronics

#182
20130293332
2013-11-07

Ignition coil

#183
20130291844
2013-11-07

Ignition coil

#184
20130284157
2013-10-31

Ignition coil for internal combustion engine

#185
20130269665
2013-10-17

IGNITION COIL AND MANUFACTURING METHOD

#186
20130233291
2013-09-12

Ignition device and structure for mounting same

#187
20130144580
2013-06-06

Process for designing and manufacturing an ignition system for an internal combustion engine

#188
20130104863
2013-05-02

Ignition coil assembly

#189
20130033156
2013-02-07

Electrical condenser assemblies and magnetos for spark ignition engines

#190
20130009739
2013-01-10

IGNITION COIL WITH ENERGY STORAGE AND TRANSFORMATION

#191
20120299679
2012-11-29

Ignition coil for internal combustion engine

#192
20120227715
2012-09-13

Ignition coil for internal combustion engines

#193
20120222660
2012-09-06

Internal combustion engine ignition coil device

#194
20120212313
2012-08-23

Corona igniter with improved energy efficiency

#195
20120204847
2012-08-16

Cam cover coil on plug retention via oil separator

#196
20120186568
2012-07-26

Ignition coil, spark plug, and ignition set-up including an ignition coil and spark plug

#197
20120176724
2012-07-12

Corona igniter including ignition coil with improved isolation

#198
20120133475
2012-05-31

Segmented core transformer

#199
20120133470
2012-05-31

Ignition coil with core formed of compressed powder

#200
20120105189
2012-05-03

IGNITION COIL FOR SPARK PLUGS

#201
20120103313
2012-05-03

Ignition coil for internal combustion engine

#202
20110304419
2011-12-15

Ignition coil with energy storage and transformation

#203
20110297133
2011-12-08

Ignition coil for internal combustion engine

#204
20110259307
2011-10-27

IGNITION COIL

#205
20110247600
2011-10-13

Ignition coil device for internal combustion engine

#206
20110239999
2011-10-06

Device for storing energy and transforming energy

#207
20110234356
2011-09-29

Integrated gas discharge lamp and ignition transformer for an integrated gas discharge lamp

#208
20110132338
2011-06-09

IGNITION COIL FOR AN ENGINE

#209
20110126811
2011-06-02

Ignition coil of engine

#210
20110115374
2011-05-19

Transformer and lamp base element, lamp base, and discharge lamp having such a lamp base

#211
20110057757
2011-03-10

Ignition coil for vehicle

#212
20110056449
2011-03-10

IGNITION COIL FOR VEHICLE

#213
20110010927
2011-01-20

Ignition coil for internal combustion engine and method of making the same

#214
20110000472
2011-01-06

Ignition coil

#215
20100307467
2010-12-09

Ignition coil

#216
20100275893
2010-11-04

Ignition coil device for internal combustion engine

#217
20100253455
2010-10-07

Ignition coil for vehicle

#218
20100253202
2010-10-07

Ignition Coil for Vehicle

#219
20100147275
2010-06-17

Ignition coil, in particular for an internal combustion engine of a motor vehicle

#220
20100132677
2010-06-03

Ignition apparatus with cylindrical core and laminated return path

#221
20100116258
2010-05-13

Ignition coil device

#222
20100052836
2010-03-04

Air cooled core mounted ignition system

#223
20100039198
2010-02-18

Ignition coil with spaced secondary sector windings

#224
20100026436
2010-02-04

Ignition coil, in particular for an internal combustion engine of a motor vehicle

#225
20100018033
2010-01-28

Method for producing a coil, in particular an ignition coil for a motor vehicle

#226
20100014209
2010-01-21

High efficiency gas lighting device for an electric household appliance

#227
20090301450
2009-12-10

Ignition coil, in particular for an internal combustion engine of a motor vehicle

#228
20090289752
2009-11-26

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MAKING THE SAME

#229
20090277433
2009-11-12

SMALLEST, HIGHEST ENERGY DENSITY INDUCTIVE COILS WITH OPTIMIZED EQUATION FOR RARE EARTH HIGHEST ENERGY BIASING MAGNETS

#230
20090260608
2009-10-22

Ignition coil for internal combustion engine

#231
20090219125
2009-09-03

Bobbin for secondary winding of ignition coil

#232
20090205621
2009-08-20

Ignition coil with spring-loaded boltless mounting to spark plug

#233
20090199827
2009-08-13

Flux director for ignition coil assembly

#234
20090194084
2009-08-06

Ignition coil

#235
20090108972
2009-04-30

Ignition coil and method for manufacturing the same

#236
20090071454
2009-03-19

IGNITION COIL HAVING COMPRESSED POWDER CORE

#237
20090066464
2009-03-12

Ignition apparatus having bonded steel wire central core

#238
20090043033
2009-02-12

Reinforced polyester compositions for high dielectric performance

#239
20090033452
2009-02-05

Ignition coil

#240
20090033451
2009-02-05

Ignition coil

#241
20090009275
2009-01-08

Ignition coil

#242
20090002113
2009-01-01

Ignition coil

#243
20080290983
2008-11-27

CORE ASSEMBLY, IN PARTICULAR FOR AN IGNITION COIL OF AN INTERNAL COMBUSTION ENGINE

#244
20080278884
2008-11-13

Method and apparatus to reduce ring out in an ignition coil to allow for ion sense processing

#245
20080271724
2008-11-06

Ignition coil apparatus for internal combustion engine

#246
20080266040
2008-10-30

Ignition coil

#247
20080264397
2008-10-30

Ignition coil

#248
20080264396
2008-10-30

Ignition coil

#249
20080257324
2008-10-23

INDUCTIVE IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE

#250
20080224810
2008-09-18

Ignition coil for an internal combustion engine

#251
20080202484
2008-08-28

Ignition coil for an internal combustion engine

#252
20080180137
2008-07-31

Ignition coil

#253
20080157908
2008-07-03

Insulating member

#254
20080156304
2008-07-03

Ignition apparatus for an internal combustion engine

#255
20080141987
2008-06-19

Ignition coil with wire rope core and method

#256
20080117010
2008-05-22

IGNITION COIL AND METHOD OF MANUFACTURING THE SAME

#257
20080047534
2008-02-28

Ignition coil assembly for engine

#258
20080029074
2008-02-07

Ignition coil device for internal combustion engine

#259
20080024258
2008-01-31

Ignition coil having plug cap

#260
20080024257
2008-01-31

Ignition coil

#261
20080022985
2008-01-31

Ignition coil and method for manufacturing the same

#262
20080022984
2008-01-31

Ignition coil

#263
20080007379
2008-01-10

Ignition coil and ignition coil system having the same

#264
20080006255
2008-01-10

Coil-on-plug ignition terminal

#265
20080006254
2008-01-10

Ignition apparatus for internal combustion engine

#266
20070277795
2007-12-06

Ignition coil, mounting structure, and method for mounting of the same

#267
20070256655
2007-11-08

Ignition coil

#268
20070246029
2007-10-25

Ignition coil and ignition device for internal combustion engine

#269
20070235013
2007-10-11

Ignition coil device

#270
20070216507
2007-09-20

Electrical contacting of thin enameled wires of secondary windings of ignition coils having a contact crown and contact element

#271
20070210888
2007-09-13

Ignition coil

#272
20070209645
2007-09-13

Twin spark ignition coil with provisions to balance load capacitance

#273
20070188283
2007-08-16

Ignition coil for a gasoline engine and method for its manufacture

#274
20070182518
2007-08-09

Ignition coil for an internal combustion engine

#275
20070181109
2007-08-09

Ignition apparatus for an internal combustion engine

#276
20070175460
2007-08-02

Ignition coil for an internal combustion engine

#277
20070138658
2007-06-21

Electronic component having an encapsulating compound

#278
20070125335
2007-06-07

Ignition apparatus having conductive plastic ignition terminal and field smoother

#279
20070120636
2007-05-31

Magnetic coupling device for contactless energy transmission systems

#280
20070109085
2007-05-17

Twin spark ignition coil with provisions to balance load capacitance

#281
20070101976
2007-05-10

Method for manufacturing an ignition coil and corresponding ignition coil

#282
20070096859
2007-05-03

Magnetic circuit for ignition coils or transformers

#283
20070084433
2007-04-19

Multicharge ignition coil with primary routed in shield slot

#284
20070075814
2007-04-05

Ignition coil for an internal combustion engine

#285
20070069845
2007-03-29

Ignition coil for a gasoline engine

#286
20070063802
2007-03-22

Ignition wire having low resistance and high inductance

#287
20070046416
2007-03-01

Core assembly, in particular for an ignition coil of an internal combustion engine

#288
20070040641
2007-02-22

Ignition coil and manufacturing method and apparatus thereof

#289
20070023019
2007-02-01

Internal combustion engine ignition device

#290
20070013469
2007-01-18

Ignition coil for an internal combustion engine

#291
20070012301
2007-01-18

Ignition coil and method for manufacturing an ignition coil

#292
20070006859
2007-01-11

Internal combustion engine ignition coil apparatus

#293
20070006858
2007-01-11

Method for producing an individual ignition coil and coil thus obtained

#294
20060260591
2006-11-23

Ignition device for internal combustion engine

#295
20060255898
2006-11-16

Ignition coil apparatus for an internal combustion engine

#296
20060250206
2006-11-09

Rod iginition coil

#297
20060226945
2006-10-12

Ignition apparatus for an internal combustion engine

#298
20060214758
2006-09-28

Ignition coil having center core

#299
20060214757
2006-09-28

Attachable rod ignition coil

#300
20060211292
2006-09-21

Electrical contact between thin varnished wires of the secondary winding of an ignition coil