Topic leaderboard
Spark gaps, arresters & sparking plugs
Ranked by the PatentIndex Score — a 1–99 percentile within H01T · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest H01T patents became public in the last 2 years — the current frontier
- 199Charles Houston Waddell31 patents · 377 citations
- 296Kanji Higuchi7 patents · 239 citations
- 392Naomichi Miyashita16 patents · 87 citations
- 488Tatsuya Gozawa28 patents · 64 citations
- 583Kenji Ban34 patents · 69 citations
- 679Bernhard Krauss8 patents · 31 citations
- 775Daisuke Sumoyama21 patents · 37 citations
- 871Shuwei Ma26 patents · 54 citations
- 967Haruki Yoshida39 patents · 48 citations
- 1063Matthias Blankmeister17 patents · 29 citations
- 1158Nobuyuki Ohe15 patents · 27 citations
- 1254Maria-Emmanuella Sotiropoulou7 patents · 29 citations
- 1350Stephan Hierl8 patents · 23 citations
- 1446Thomas C. Marrs9 patents · 28 citations
- 1542James Jay Cress13 patents · 17 citations
- 1638Uwe Strangfeld10 patents · 19 citations
- 1733Johann Klausner6 patents · 36 citations
- 1829Michael Damian Czekala5 patents · 11 citations
- 1925Richard Daum6 patents · 24 citations
- 2021Robert Rozman5 patents · 23 citations
- 2117Naoyuki Mukoyama8 patents · 10 citations
- 2213Tetsuya Ezaki9 patents · 9 citations
- 238Bastiaan Hubertus Van Besouw8 patents · 5 citations
- 244Sidharth Suresh Iyer6 patents · 5 citations
- 251Stephen Franklin Poterala6 patents · 5 citations
Active· last 5 yrs
Sustained H01T output across the last 5 years
- 199Charles Houston Waddell31 patents · 377 citations
- 296Artur P. Suckewer9 patents · 271 citations
- 392Kanji Higuchi7 patents · 239 citations
- 488Matthew B. Below27 patents · 243 citations
- 583Werner Niessner51 patents · 317 citations
- 679Lawrence T. Sunshine10 patents · 126 citations
- 775Aleksey Klochkov16 patents · 245 citations
- 871Yefim Riskin11 patents · 195 citations
- 967Jeffrey Joseph Kester7 patents · 168 citations
- 1063Masamichi Shibata47 patents · 168 citations
- 1158Frederick H. Selmon, Iii5 patents · 76 citations
- 1254Lawrence Levit6 patents · 96 citations
- 1350Steven Bernard Heymann11 patents · 95 citations
- 1446Edward Anthony Oldynski11 patents · 92 citations
- 1542Naomichi Miyashita16 patents · 87 citations
- 1638Brian Keith Roper11 patents · 49 citations
- 1733Perry Pauley11 patents · 49 citations
- 1829Timothy Mark Bender11 patents · 49 citations
- 1925Todd K. Roper11 patents · 49 citations
- 2021Rainer Durth21 patents · 80 citations
- 2117Peter Zahlmann7 patents · 55 citations
- 2213Edmund Zäuner10 patents · 43 citations
- 238Arnd Ehrhardt12 patents · 53 citations
- 244Tatsuya Gozawa28 patents · 64 citations
- 251Thomas Tsovilis6 patents · 47 citations
All-time canon
Career PatentIndex Score in H01T
- 199Shek Fai Lau23 patents · 1,188 citations
- 296Charles E. Taylor19 patents · 759 citations
- 392Andrew Parker14 patents · 548 citations
- 488Andrzej Loreth7 patents · 690 citations
- 583Robin J. Harvey7 patents · 425 citations
- 679Franklin A. Dolezal9 patents · 455 citations
- 775Weldon S. Williamson12 patents · 540 citations
- 871Michael G. Yost5 patents · 405 citations
- 967Leslie W. Partridge19 patents · 545 citations
- 1063Takafumi Oshima16 patents · 716 citations
- 1158Charles Houston Waddell31 patents · 377 citations
- 1254Junichi Kagawa25 patents · 775 citations
- 1350Hironori Osamura14 patents · 515 citations
- 1446Senichi Masuda7 patents · 343 citations
- 1542Joseph Anton Christiansen8 patents · 164 citations
- 1638Artur P. Suckewer9 patents · 271 citations
- 1733Keiji Kanao36 patents · 804 citations
- 1829Wataru Matsutani54 patents · 1,064 citations
- 1925Jimmy Lee6 patents · 346 citations
- 2021Richard D. Rodrigo13 patents · 269 citations
- 2117Kozo Takamura16 patents · 491 citations
- 2213Reinhard Latsch9 patents · 343 citations
- 238Mark Blitshteyn6 patents · 254 citations
- 244Scott Gehlke16 patents · 433 citations
- 251Yoshinori Sekoguchi21 patents · 357 citations
Rising· last 2 yrs
The top-scoring H01T patents made public in the last 2 years
- 199US12092063B2✦ AIPredictive model-based spark control3 cites · 202472% earned
- 296US11929594B1✦ AISpark plug4 cites · 202482% earned
- 392US12204385B2✦ AIMethod and apparatus for an ion emitter-assisted heatpipe2 cites · 202476% earned
- 488US12095234B2Spark plug1 cites · 202467% earned
- 583US12179020B1System and method for the activation of active ion transporters without the consumption of1 cites · 202467% earned
- 679US12095233B1Spark plug1 cites · 202467% earned
- 775US12176685B2Self-cleaning ion generator device0 cites · 20240% earned
- 871US12400890B2Apparatus for fabricating a semiconductor device and method for fabricating semiconductor 0 cites · 20240% earned
- 967US12202014B2Self cleaning ion generator device0 cites · 20240% earned
- 1063US12244122B2Arc mitigation apparatus and systems for panelboard applications0 cites · 20240% earned
- 1158US12362542B2Spark gap assembly for overvoltage protection and surge arrester0 cites · 20240% earned
- 1254US12269046B2Apparatus and methods for clearing smoke within closed environments using non-thermal micr0 cites · 20240% earned
- 1350US11942764B1Spark plug for boosted engine0 cites · 20240% earned
- 1446US12204386B2Method and apparatus for a silent blower in an information handling system0 cites · 20240% earned
- 1542US12381374B2Spark plug with electrode head shielding element0 cites · 20240% earned
- 1638US12034278B2Spark plug, spark plug electrode, and method of manufacturing the same0 cites · 20240% earned
- 1733US12191637B1Spark plug with cooling features and method of manufacturing the same0 cites · 20250% earned
- 1829US12100937B2Method of manufacturing spark plug electrode with electrode tip directly thermally coupled0 cites · 20240% earned
- 1925US12027825B1Spark plug and method for producing a spark plug0 cites · 20240% earned
- 2021US12418175B2Surge protective devices0 cites · 20240% earned
- 2117US12555708B2Assembly comprising a disconnecting device for a surge-arresting device0 cites · 20240% earned
- 2213US12374869B2Static eliminator and ion balance control method0 cites · 20240% earned
- 238US12363816B2Air blower and/or vacuum with static charge mitigation0 cites · 20240% earned
- 244US12338804B2Apparatus for ionizing and accelerating a fluid0 cites · 20240% earned
- 251US12477650B2Spacing-assured electric field shield for gas discharge tube of motor control0 cites · 20240% earned
Active· last 5 yrs
The top-scoring H01T patents of the last 5 years
- 199US11156148B1✦ AIActive prechamber for use in an internal combustion engine8 cites · 202186% earned
- 296US11665808B2✦ AIDC plasma torch electrical power design method and apparatus9 cites · 202177% earned
- 392US11581708B2✦ AISpark plug with thermally coupled center electrode7 cites · 202286% earned
- 488US11606855B1Static eliminator having offset voltage reduction unit7 cites · 202386% earned
- 583US11695259B2Modular ion generator device8 cites · 202276% earned
- 679US11637412B2Spark plug6 cites · 202385% earned
- 775US11723145B2PCB-mountable surge protective device modules and SPD circuit systems and methods includin6 cites · 202385% earned
- 871US12092063B2Predictive model-based spark control3 cites · 202472% earned
- 967US11552456B1Pre-chamber spark plug4 cites · 202382% earned
- 1063US11251588B1Dual spark plug5 cites · 202284% earned
- 1158US11695256B2Spark plug for internal combustion engine4 cites · 202382% earned
- 1254US11431155B2Spark plug6 cites · 202185% earned
- 1350US11710947B2Spark plug for internal combustion engine4 cites · 202382% earned
- 1446US11456578B2Spark plug6 cites · 202285% earned
- 1542US11757262B1Prechamber spark plug and method of manufacturing the same4 cites · 202382% earned
- 1638US11189993B2Spark plug and method for manufacturing a spark plug8 cites · 202186% earned
- 1733US11419204B2Method and apparatus for operating traveling spark igniter at high pressure5 cites · 202158% earned
- 1829US11715933B2Spark plug5 cites · 202284% earned
- 1925US11710946B2Gas arrester4 cites · 202175% earned
- 2021US11545816B2Spark plug with multiple spark gaps4 cites · 202282% earned
- 2117US11929594B1Spark plug4 cites · 202482% earned
- 2213US11596057B2Spacing-assured electric field shield for gas discharge tube of motor control4 cites · 202175% earned
- 238US10938187B1Prechamber sparkplug having electrodes located for inhibiting flame kernel quenching4 cites · 202175% earned
- 244US11002219B1Spark plug gasket crush limiter4 cites · 202182% earned
- 251US11695258B2Spark plug4 cites · 202382% earned
All-time canon
The defining H01T patents of the whole record
- 199US4040426A✦ AIElectrosurgical method and apparatus for initiating an electrical discharge in an inert ga411 cites · 197795% earned
- 296US5401446A✦ AIMethod and apparatus for the electrostatic charging of a web or film349 cites · 199594% earned
- 392US6176977B1✦ AIElectro-kinetic air transporter-conditioner283 cites · 200184% earned
- 488US5484472AMiniature air purifier240 cites · 199694% earned
- 583US4841925AEnhanced flame ignition for hydrocarbon fuels227 cites · 198994% earned
- 679US4586104APassive overvoltage protection devices, especially for protection of computer equipment co221 cites · 198694% earned
- 775US5601636AWall mounted air cleaner assembly216 cites · 199794% earned
- 871US6430019B1Circuit protection device211 cites · 200291% earned
- 967US5513075AModule for electrically connecting conductor wires to circuits of flat surfaces such as so207 cites · 199694% earned
- 1063US4253852AAir purifier and ionizer203 cites · 198194% earned
- 1158US6504308B1Electrostatic fluid accelerator201 cites · 200388% earned
- 1254US6350417B1Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices199 cites · 200282% earned
- 1350US4203393APlasma jet ignition engine and method192 cites · 198094% earned
- 1446US6191928B1Surface-mountable device for protection against electrostatic damage to electronic compone188 cites · 200194% earned
- 1542US5317155ACorona discharge apparatus172 cites · 199494% earned
- 1638US4477263AApparatus and method for neutralizing static electric charges in sensitive manufacturing a160 cites · 198494% earned
- 1733US5024685AElectrostatic air treatment and movement system159 cites · 199194% earned
- 1829US4262317ALine protector for a communications circuit156 cites · 198194% earned
- 1925US5055963ASelf-balancing bipolar air ionizer149 cites · 199190% earned
- 2021US6883507B2System and method for generating and sustaining a corona electric discharge for igniting a149 cites · 200494% earned
- 2117US5655210ACorona source for producing corona discharge and fluid waste treatment with corona dischar142 cites · 199788% earned
- 2213US6850403B1Air ionizer and method142 cites · 200593% earned
- 238US8711538B2Externally gapped line arrester135 cites · 201293% earned
- 244US6713026B2Electro-kinetic air transporter-conditioner134 cites · 200182% earned
- 251US5296019ADust precipitation from air by negative ionization133 cites · 199493% earned
Rising· last 2 yrs
Assignees whose newest H01T patents became public in the last 2 years — the current frontier
- 199BOSCH GMBH ROBERT135 patents · 1,546 citations
- 296CATERPILLAR INC38 patents · 462 citations
- 392SHARP KK51 patents · 506 citations
- 488KEYENCE CO LTD11 patents · 217 citations
- 583HUBBELL INC22 patents · 237 citations
- 679WOODWARD INC10 patents · 164 citations
- 775CITEL11 patents · 73 citations
- 871FORD GLOBAL TECH LLC21 patents · 162 citations
- 967BOEING CO8 patents · 39 citations
- 1063GLOBAL PLASMA SOLUTIONS INC9 patents · 22 citations
- 1158MARSHALL ELECTRIC CORP9 patents · 28 citations
- 1254HYUNDAI MOTOR CO LTD15 patents · 22 citations
- 1350FED MOGUL IGNITION GMBH32 patents · 23 citations
- 1446FED MOGUL IGNITION LLC13 patents · 15 citations
- 1542DEHN SE14 patents · 9 citations
- 1638ECOPOWER SPARK LLC6 patents · 11 citations
- 1733PROMETHEUS APPLIED TECH LLC6 patents · 10 citations
- 1829RIPD IP DEV LTD5 patents · 23 citations
- 1925EATON INTELLIGENT POWER LTD11 patents · 9 citations
- 2021PANASONIC IP MAN CO LTD15 patents · 24 citations
- 2117SEMICONDUCTOR COMPONENTS IND LLC8 patents · 11 citations
- 2213TDK CORP8 patents · 6 citations
- 238CATERPILLAR ENERGY SOLUTIONS GMBH8 patents · 8 citations
- 244NITERRA CO LTD20 patents · 6 citations
- 251INNIO JENBACHER GMBH & CO OG7 patents · 8 citations
Active· last 5 yrs
Sustained H01T output across the last 5 years
- 199NGK SPARK PLUG CO558 patents · 5,960 citations
- 296DENSO CORP263 patents · 2,003 citations
- 392KNITE INC9 patents · 310 citations
- 488BOSCH GMBH ROBERT135 patents · 1,546 citations
- 583GEN ELECTRIC39 patents · 651 citations
- 679WADDELL CHARLES HOUSTON14 patents · 253 citations
- 775ILLINOIS TOOL WORKS55 patents · 530 citations
- 871CATERPILLAR INC38 patents · 462 citations
- 967SHARP KK51 patents · 506 citations
- 1063MITSUBISHI ELECTRIC CORP43 patents · 363 citations
- 1158XEROX CORP69 patents · 1,054 citations
- 1254PLASMA AIR INT INC10 patents · 126 citations
- 1350KEYENCE CO LTD11 patents · 217 citations
- 1446HUBBELL INC22 patents · 237 citations
- 1542WOODWARD INC10 patents · 164 citations
- 1638PHOENIX CONTACT GMBH & CO29 patents · 127 citations
- 1733SAMSUNG ELECTRONICS CO LTD12 patents · 115 citations
- 1829LG ELECTRONICS INC20 patents · 119 citations
- 1925TOYOTA MOTOR CO LTD20 patents · 91 citations
- 2021CITEL11 patents · 73 citations
- 2117IONAER INT ARIZONA LLC11 patents · 49 citations
- 2213FORD GLOBAL TECH LLC21 patents · 162 citations
- 238FRAM GROUP IP LLC23 patents · 47 citations
- 244BOEING CO8 patents · 39 citations
- 251BOURNS INC8 patents · 44 citations
All-time canon
All-time PatentIndex Score in H01T
- 199SHARPER IMAGE CORP17 patents · 1,160 citations
- 296ION SYSTEMS INC19 patents · 1,239 citations
- 392ASTRA VENT AB8 patents · 774 citations
- 488NGK SPARK PLUG CO558 patents · 5,960 citations
- 583HUGHES AIRCRAFT CO6 patents · 383 citations
- 679DENSO CORP263 patents · 2,003 citations
- 775FORD MOTOR CO18 patents · 600 citations
- 871NIPPON DENSO CO44 patents · 1,236 citations
- 967KNITE INC9 patents · 310 citations
- 1063BOSCH GMBH ROBERT135 patents · 1,546 citations
- 1158GEN ELECTRIC39 patents · 651 citations
- 1254COOPER IND INC15 patents · 427 citations
- 1350RELIABLE ELECTRIC CO17 patents · 558 citations
- 1446WADDELL CHARLES HOUSTON14 patents · 253 citations
- 1542GEN MOTORS CORP38 patents · 940 citations
- 1638ALLIED SIGNAL INC15 patents · 490 citations
- 1733ILLINOIS TOOL WORKS55 patents · 530 citations
- 1829CATERPILLAR INC38 patents · 462 citations
- 1925US ARMY11 patents · 344 citations
- 2021SHARP KK51 patents · 506 citations
- 2117MEZZALINGUA JOHN ASS6 patents · 339 citations
- 2213HONDA MOTOR CO LTD16 patents · 336 citations
- 238SIEMENS AG71 patents · 969 citations
- 244NIPPON SOKEN25 patents · 403 citations
- 251HOECHST AG13 patents · 334 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth