Topic leaderboard
Ignition & extinguishing-devices
Ranked by the PatentIndex Score — a 1–99 percentile within F23Q · public-visibility date · generated 2026-07-19
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F23Q patents became public in the last 2 years — the current frontier
- 199Michael R. Hathaway4 patents · 10 citations
- 296Peter J. Current4 patents · 10 citations
- 392Christopher A. Bruening2 patents · 3 citations
- 488George Gogos2 patents · 3 citations
- 583Shaoyan Zheng2 patents · 3 citations
- 679Brian Koch2 patents · 2 citations
- 775Harshal Manik Pawar2 patents · 2 citations
- 871Tyler Garland2 patents · 2 citations
- 967Yong'En Hu1 patents · 3 citations
- 1063Fawaz Siddiqi1 patents · 1 citations
- 1158Lanny K. Nissen1 patents · 1 citations
- 1254Salem D. Al-Qahtani1 patents · 1 citations
- 1350Soliman A. Al-Walaie1 patents · 1 citations
- 1446Zahir Fartas1 patents · 1 citations
- 1542LEONOV SERGEY B1 patents · 0 citations
- 1638Hiu Wai Mcgill1 patents · 0 citations
- 1733Ian Douglas Hillier1 patents · 0 citations
- 1829Jamie Alexander Hobson1 patents · 0 citations
- 1925José Eduardo Reynoso Cosillo1 patents · 0 citations
- 2021CALVIN SETH1 patents · 0 citations
- 2117CHEN ROBERT1 patents · 0 citations
- 2213GRIGGS WILLIAM1 patents · 0 citations
- 238Abdullmajeed I. Al-Sanad1 patents · 0 citations
- 244Abdulaziz H. Altijani1 patents · 0 citations
- 251Anas H. Safar1 patents · 0 citations
Active· last 5 yrs
Sustained F23Q output across the last 5 years
- 199Rene Frigiere18 patents · 371 citations
- 296Chin-Lin Tsai13 patents · 177 citations
- 392Peter Leigh6 patents · 92 citations
- 488Michael D. Beyrodt5 patents · 16 citations
- 583Christopher Charles Yirsa4 patents · 18 citations
- 679Richard Wayne Egelin, Jr.4 patents · 18 citations
- 775Jason A. Ryon9 patents · 12 citations
- 871Lev Alexander Prociw9 patents · 12 citations
- 967Michael Colston4 patents · 21 citations
- 1063Michael R. Hathaway4 patents · 10 citations
- 1158Peter J. Current4 patents · 10 citations
- 1254Jamie Bianchini5 patents · 14 citations
- 1350Douglas W. Karkow7 patents · 11 citations
- 1446Alexander K. Maghsadi3 patents · 14 citations
- 1542Eric H. Jan3 patents · 14 citations
- 1638Jeffrey H. Jan3 patents · 14 citations
- 1733Spencer H. Jan3 patents · 14 citations
- 1829Brandon P. Williams5 patents · 4 citations
- 1925Michele Bortoliero2 patents · 64 citations
- 2021Michel Bousquet11 patents · 4 citations
- 2117Richard Freer13 patents · 4 citations
- 2213André Fortin9 patents · 3 citations
- 238Kian Mccaldon9 patents · 3 citations
- 244Tin Cheung John Hu9 patents · 3 citations
- 251David Eckhardt3 patents · 6 citations
All-time canon
Career PatentIndex Score in F23Q
- 199David Deng20 patents · 531 citations
- 296Dennis M. Defreitas5 patents · 313 citations
- 392Toshihiro Ichikawa12 patents · 418 citations
- 488Floyd Fairbanks21 patents · 593 citations
- 583James M. Mcdonough25 patents · 680 citations
- 679Tomio Nitta27 patents · 642 citations
- 775Jonathan L. Mace9 patents · 213 citations
- 871Gerald J. Seitz7 patents · 187 citations
- 967Kil Yong Sung15 patents · 381 citations
- 1063Tsutomu Shike7 patents · 256 citations
- 1158Toshihiko Eguchi5 patents · 240 citations
- 1254Craig A. Willkens15 patents · 376 citations
- 1350Linda S. Bateman6 patents · 298 citations
- 1446James Waller Lambuth Lewis6 patents · 142 citations
- 1542Jimmy D. Few6 patents · 142 citations
- 1638Chris A. Barone7 patents · 216 citations
- 1733Adam Bowen4 patents · 560 citations
- 1829James Monsees4 patents · 560 citations
- 1925Stephen Radmacher6 patents · 238 citations
- 2021Brian Tubby9 patents · 230 citations
- 2117Morihiro Atsumi6 patents · 272 citations
- 2213Rene Frigiere18 patents · 371 citations
- 238Tak Chi Sher17 patents · 422 citations
- 244Salvatore Cirami5 patents · 186 citations
- 251Aman Chung Kai Man7 patents · 194 citations
Rising· last 2 yrs
The top-scoring F23Q patents made public in the last 2 years
- 199US12324440B1✦ AIAutomatic smoker3 cites · 202572% earned
- 296US12038153B1✦ AISafety focusing ignition flashlight device3 cites · 202480% earned
- 392US12346132B2✦ AIIdentifying and remediating a gas leak1 cites · 202467% earned
- 488US12385639B2Cigar lighter with enclosed burn area1 cites · 202467% earned
- 583US11982443B1Torch and hood assembly comprising a chimney and double plated enclosure, provision for at1 cites · 202467% earned
- 679US11913762B1Multi-level networked ordnance system0 cites · 20240% earned
- 775US12553388B2Plasma injection modules0 cites · 20250% earned
- 871USD1108317STricycle with spark generating device0 cites · 20260% earned
- 967US12060994B2Using diode rectification to determine igniter, inducer relay, and igniter relay faults0 cites · 20240% earned
- 1063US12467627B2Electric propulsion system including heaterless dispenser cathode0 cites · 20240% earned
- 1158US12208342B2Systems, methods, and apparatuses for implementing multi-point controls for a gas flame ap0 cites · 20240% earned
- 1254US12140311B1Torch lighters and flame-coloring inserts therefor0 cites · 20240% earned
- 1350US12117173B1Internal combustion engine with ceramic pilot chamber component(s)0 cites · 20240% earned
- 1446US12429227B2Cooking appliance with cycling of multiple gas burners to maintain temperature setpoint0 cites · 20240% earned
- 1542US12558806B1Systems and methods for locking rotatable tools0 cites · 20260% earned
- 1638US12529341B2Ignition system and method of operating a combustion engine0 cites · 20250% earned
- 1733US12030829B2Fire starter0 cites · 20240% earned
- 1829US12432818B1Electronic combustion device0 cites · 20250% earned
- 1925US12209532B2Compression ignition engine with igniter and pilot injector0 cites · 20240% earned
- 2021US12474049B2Automatically igniting gas flares0 cites · 20240% earned
- 2117US12292190B2Portable ignition system0 cites · 20240% earned
- 2213US12237649B2Spark igniter with magnetic field for pushing spark0 cites · 20240% earned
- 238US12479043B2Arc ignition system for exothermic welding apparatus0 cites · 20240% earned
- 244US12516819B2Auto-ignition apparatus for backpacking stove0 cites · 20240% earned
- 251US11927346B1System and method for lighter low fuel indicator0 cites · 20240% earned
Active· last 5 yrs
The top-scoring F23Q patents of the last 5 years
- 199US11885499B2✦ AIIgnition-based protocols for pellet grills5 cites · 202372% earned
- 296US11378279B2✦ AICombustible fuel burning stove with spark arrestor11 cites · 202176% earned
- 392US12324440B1✦ AIAutomatic smoker3 cites · 202572% earned
- 488US11732895B1Methods and systems for open-loop ignition of a smoke generator fuel source5 cites · 202372% earned
- 583US11473505B2Torch igniter cooling system6 cites · 202278% earned
- 679US11649966B1Combustor with an ignition tube4 cites · 202375% earned
- 775US12038153B1Safety focusing ignition flashlight device3 cites · 202480% earned
- 871US12173902B2Plasma injection modules2 cites · 202361% earned
- 967US11499710B2Smart candle platform and system2 cites · 202267% earned
- 1063US11549441B1Fuel injectors with torch ignitors2 cites · 202367% earned
- 1158US11781752B2Using diode rectification to determine igniter, inducer relay, and igniter relay faults2 cites · 202267% earned
- 1254US11852342B2Tool with improved ignition efficiency2 cites · 202276% earned
- 1350US11933493B2Tool with improved ignition efficiency2 cites · 202276% earned
- 1446US11521767B2Ignition resistor and method for manufacturing the same2 cites · 202276% earned
- 1542US11428405B2Hydrogen gas burner2 cites · 202176% earned
- 1638US11697076B2Systems, methods, and apparatuses for implementing multi-point controls for a gas flame ap2 cites · 202267% earned
- 1733US11378272B2Smart candle platform and system2 cites · 202176% earned
- 1829US12044407B2Electric propulsion system including heaterless dispenser cathode2 cites · 202267% earned
- 1925US11898740B2Multi-purpose flashlight1 cites · 202356% earned
- 2021US12346132B2Identifying and remediating a gas leak1 cites · 202467% earned
- 2117US12385639B2Cigar lighter with enclosed burn area1 cites · 202467% earned
- 2213US11774096B2Portable biometric lighter1 cites · 202146% earned
- 238US11583138B2Grill with battery power system and measurement1 cites · 202156% earned
- 244US11927347B2Bendable lighter1 cites · 202156% earned
- 251US11773784B2Fuel injectors with torch ignitors1 cites · 202367% earned
All-time canon
The defining F23Q patents of the whole record
- 199US5878752A✦ AIMethod and apparatus for using, cleaning, and maintaining electrical heat sources and ligh1,034 cites · 199995% earned
- 296US6125853A✦ AIFlavor generation device583 cites · 200095% earned
- 392US6688313B2✦ AIElectrical smoking system and method469 cites · 200292% earned
- 488US8915254B2Method and system for vaporization of a substance295 cites · 200986% earned
- 583US8925555B2Method and system for vaporization of a substance220 cites · 200986% earned
- 679US4717333ABurner ignition system169 cites · 198894% earned
- 775US6446426B1Miniature pulsed heat source167 cites · 200294% earned
- 871US6222719B1Ignition boost and rectification flame detection circuit151 cites · 200194% earned
- 967US5085804ARefractory electrical device147 cites · 199294% earned
- 1063US5514630AComposition for small ceramic igniters142 cites · 199693% earned
- 1158US5235157ABattery powered cigarette lighter having recessed heating element and normally open pivota137 cites · 199388% earned
- 1254US5285050ABattery-operated portable cigarette lighter with closure actuated switch131 cites · 199488% earned
- 1350US5697775ASafety device in lighting rods125 cites · 199793% earned
- 1446US4348172APortable propane gas hand torch122 cites · 198293% earned
- 1542US6743010B2Relighter control system116 cites · 200393% earned
- 1638US5274214ABattery powered portable cigarette lighter having a press-fitted ceramic heat concentratin113 cites · 199387% earned
- 1733US5045237ARefractory electrical device112 cites · 199193% earned
- 1829US5094223AWood burning portable fire pit grill apparatus109 cites · 199293% earned
- 1925US5756215ACeramic heater108 cites · 199893% earned
- 2021US4475029ACeramic heater102 cites · 198493% earned
- 2117US5515681ACommonly housed electrostatic fuel atomizer and igniter apparatus for combustors101 cites · 199685% earned
- 2213US4639712ASheathed heater101 cites · 198793% earned
- 238US5145358ASafety device for piezoelectric gas lighter101 cites · 199293% earned
- 244US5750958ACeramic glow plug101 cites · 199893% earned
- 251US5902501ALighter actuation system100 cites · 199993% earned
Rising· last 2 yrs
Assignees whose newest F23Q patents became public in the last 2 years — the current frontier
- 199GEN ELECTRIC15 patents · 165 citations
- 296PRATT & WHITNEY CANADA16 patents · 6 citations
- 391SAUDI ARABIAN OIL CO6 patents · 4 citations
- 487PACIFIC SCIENT ENERGETIC MATERIALS COMPANY CALIFORNIA LLC3 patents · 3 citations
- 583UNIV NOTRE DAME DU LAC3 patents · 2 citations
- 678ZHENG SHAOYAN2 patents · 3 citations
- 774HUBBELL INC4 patents · 0 citations
- 870AEROJET ROCKETDYNE INC2 patents · 2 citations
- 965TYLERS PROP SHOP LLC2 patents · 2 citations
- 1061GUANGZHOU TIANHUO ELECTRONIC TECH CO LTD1 patents · 3 citations
- 11572731848 ONTARIO INC1 patents · 1 citations
- 1252COPELAND COMFORT CONTROL LP1 patents · 0 citations
- 1348HACKSMITH ENTERTAINMENT LTD1 patents · 0 citations
- 1443RAZOR USA LLC1 patents · 0 citations
- 15393RD LIGHT IP HOLDINGS LLC1 patents · 0 citations
- 1635BORER PHILIPP1 patents · 0 citations
- 1730CROSSEN BRIDGET ANN1 patents · 0 citations
- 1826DISHER RONNIE RAY1 patents · 0 citations
- 1922HAMIDIAN DANESH1 patents · 0 citations
- 2017HEBERT JR MICHAEL EDWARD1 patents · 0 citations
- 2113KNT RC ELECTRONICS LTD1 patents · 0 citations
- 229MIDEA GROUP CO LTD1 patents · 0 citations
- 234VAUGHAN IP PTY LTD1 patents · 0 citations
- 241WISCONSIN ALUMNI RES FOUND1 patents · 0 citations
Active· last 5 yrs
Sustained F23Q output across the last 5 years
- 199EMERSON ELECTRIC CO27 patents · 408 citations
- 296GEN ELECTRIC15 patents · 165 citations
- 392ZIPPO MFG CO9 patents · 74 citations
- 488KYOCERA CORP15 patents · 119 citations
- 583Beyrodts Best LLC5 patents · 16 citations
- 679JOHN GIBSON ENTPR INC5 patents · 11 citations
- 775FIREBLAST GLOBAL INC4 patents · 18 citations
- 871DELAVAN INC6 patents · 12 citations
- 967PRO IRODA IND INC7 patents · 12 citations
- 1063TRAEGER PELLET GRILLS LLC4 patents · 21 citations
- 1158RINNAI KK5 patents · 10 citations
- 1254PRATT & WHITNEY CANADA16 patents · 6 citations
- 1350SAUDI ARABIAN OIL CO6 patents · 4 citations
- 1446LUDELA TECH LLC5 patents · 4 citations
- 1542SHARKNINJA OPERATING LLC4 patents · 5 citations
- 1638WEBER STEPHEN PRODUCTS LLC3 patents · 6 citations
- 1733SOCIéTé BIC9 patents · 3 citations
- 1829PACIFIC SCIENT ENERGETIC MATERIALS COMPANY CALIFORNIA LLC3 patents · 3 citations
- 1925GIBSON JOHN2 patents · 12 citations
- 2021FRONTLINE ADVANCE LLC1 patents · 11 citations
- 2117SUREFIRE PILOTLESS BURNER SYSTEMS LLC4 patents · 3 citations
- 2213UNIV NOTRE DAME DU LAC3 patents · 2 citations
- 238SOLO BRANDS LLC2 patents · 3 citations
- 244SOLARONICS INC2 patents · 7 citations
- 251TRI Innovations LLC2 patents · 4 citations
All-time canon
All-time PatentIndex Score in F23Q
- 199DENG DAVID15 patents · 514 citations
- 296TOKAI CORP63 patents · 1,551 citations
- 392PHILIP MORRIS INC4 patents · 1,770 citations
- 488BIC CORP59 patents · 1,315 citations
- 583LOS ALAMOS NAT SECURITY LLC9 patents · 213 citations
- 679NORTON CO5 patents · 375 citations
- 775SAINT GOBAIN NORTON IND CERAMI11 patents · 412 citations
- 871DENSO CORP16 patents · 361 citations
- 967NIPPON DENSO CO10 patents · 382 citations
- 1063UNIV TENNESSEE RES CORP6 patents · 142 citations
- 1158NGK SPARK PLUG CO102 patents · 1,202 citations
- 1254CRICKET SA15 patents · 387 citations
- 1350BOSCH GMBH ROBERT53 patents · 673 citations
- 1446HONEYWELL INC15 patents · 305 citations
- 1542CATERPILLAR INC8 patents · 258 citations
- 1638JIDOSHA KIKI CO24 patents · 544 citations
- 1733SIMMONDS PRECISION ENGINE SYST4 patents · 277 citations
- 1829POLYCITY IND LTD7 patents · 203 citations
- 1925EMERSON ELECTRIC CO27 patents · 408 citations
- 2021ROBERTSHAW CONTROLS CO50 patents · 654 citations
- 2117PYRO IND INC5 patents · 163 citations
- 2213PRECISION COMBUSTION INC5 patents · 189 citations
- 238BERU WERK RUPRECHT GMBH CO A12 patents · 255 citations
- 244CALICO BRANDS INC9 patents · 189 citations
- 251IWAHORI MASAYUKI7 patents · 160 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth