Topic leaderboard
Feeding fuel to combustion apparatus
Ranked by the PatentIndex Score — a 1–99 percentile within F23K · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F23K patents became public in the last 2 years — the current frontier
- 199Haralambos Cordatos12 patents · 97 citations
- 296Darlene K. Sherrod6 patents · 30 citations
- 392Matthew A. Cotton6 patents · 30 citations
- 488Marcus K. Wiley6 patents · 30 citations
- 583Marcus A. Wiley6 patents · 30 citations
- 679Thomas K. Gale6 patents · 30 citations
- 775Timothy P. Lenneman6 patents · 30 citations
- 871Brandon P. Williams6 patents · 31 citations
- 967Jason A. Ryon9 patents · 25 citations
- 1063Carthel C. Baker4 patents · 21 citations
- 1158Todd Haugsjaahabink4 patents · 13 citations
- 1254Murtuza Lokhandwalla6 patents · 12 citations
- 1350James A. Simmons3 patents · 15 citations
- 1446George Frederick Frey3 patents · 10 citations
- 1542Kenneth L. Baker3 patents · 4 citations
- 1638Paul Sydney Richards3 patents · 4 citations
- 1733Chunjiang Yu3 patents · 12 citations
- 1829Jinsong Zhou3 patents · 12 citations
- 1925Mengxiang Fang3 patents · 12 citations
- 2021Qinhui Wang3 patents · 12 citations
- 2117Zhongyang Luo3 patents · 12 citations
- 2213Tuy C. Huynh3 patents · 5 citations
- 238Charles E. Reuter3 patents · 6 citations
- 244Jocelyn E. Passty2 patents · 8 citations
- 251Dennis M. Moura3 patents · 3 citations
Active· last 5 yrs
Sustained F23K output across the last 5 years
- 199Douglas C. Comrie30 patents · 826 citations
- 296Lev Alexander Prociw9 patents · 168 citations
- 392Haralambos Cordatos12 patents · 97 citations
- 488Darlene K. Sherrod6 patents · 30 citations
- 583Matthew A. Cotton6 patents · 30 citations
- 679Marcus K. Wiley6 patents · 30 citations
- 775Marcus A. Wiley6 patents · 30 citations
- 871Thomas K. Gale6 patents · 30 citations
- 967Timothy P. Lenneman6 patents · 30 citations
- 1063Peter Janicki5 patents · 36 citations
- 1158Aigbedion Akwara15 patents · 10 citations
- 1254Joshua Tyler Mook15 patents · 10 citations
- 1350Kevin Michael Vandevoorde15 patents · 10 citations
- 1446Michael Robert Notarnicola15 patents · 10 citations
- 1542Mohammed El Hacin Sennoun15 patents · 10 citations
- 1638Brandon P. Williams6 patents · 31 citations
- 1733Mary Kathryn Thompson9 patents · 5 citations
- 1829Michael Thomas Gansler9 patents · 5 citations
- 1925Scott Douglas Waun9 patents · 5 citations
- 2021Jason A. Ryon9 patents · 25 citations
- 2117Jason Joseph Bellardi12 patents · 7 citations
- 2213Mohamed Osama11 patents · 7 citations
- 238Victor Luis Marrero Ortiz5 patents · 6 citations
- 244Chin-Ying Huang10 patents · 19 citations
- 251Zachary William Nagel5 patents · 5 citations
All-time canon
Career PatentIndex Score in F23K
- 199Douglas C. Comrie30 patents · 826 citations
- 296Norman L. Dickinson11 patents · 1,022 citations
- 392Iñigo Albizuri12 patents · 321 citations
- 488Louis J. Spadaccini12 patents · 819 citations
- 583He Huang5 patents · 664 citations
- 679John Philip Comer7 patents · 227 citations
- 775John Wurster7 patents · 227 citations
- 871Stephen Allen Johnson7 patents · 227 citations
- 967David Deng20 patents · 302 citations
- 1063Michael S. Klassen8 patents · 158 citations
- 1158Richard J. Roby8 patents · 158 citations
- 1254Joel Vatsky9 patents · 219 citations
- 1350Ralph H. Wright6 patents · 127 citations
- 1446Rickey E. Wark14 patents · 223 citations
- 1542Edward K. Levy10 patents · 166 citations
- 1638Ernesto Marelli5 patents · 134 citations
- 1733Edgar C. Robinson7 patents · 151 citations
- 1829James W. Bohlig5 patents · 121 citations
- 1925Leonard Fleming5 patents · 135 citations
- 2021Lev Alexander Prociw9 patents · 168 citations
- 2117Hironobu Kobayashi4 patents · 250 citations
- 2213Constance Senior9 patents · 76 citations
- 238William J. Morris9 patents · 76 citations
- 244Michael D. Durham7 patents · 75 citations
- 251Sharon Sjostrom7 patents · 75 citations
Rising· last 2 yrs
The top-scoring F23K patents made public in the last 2 years
- 199US11970977B2✦ AIVariable restriction of a secondary circuit of a fuel injector6 cites · 202485% earned
- 296US11970976B2✦ AIVariable restriction of fuel nozzle with an auxiliary circuit6 cites · 202485% earned
- 392US12173653B1✦ AIGas turbine engines and methods of controlling formation of condensates2 cites · 202567% earned
- 488US11988178B2System and methods for propulsion and powering systems using recyclable metallic fuels2 cites · 202476% earned
- 583US12076718B2Systems and methods for pyrolysis reactions1 cites · 202456% earned
- 679US12188419B1Manifold select metering system1 cites · 202567% earned
- 775US12215287B1Methods and apparatus for carbonaceous fuel and/or feedstock treatment0 cites · 20250% earned
- 871US12467410B2Gas turbine performance0 cites · 20240% earned
- 967US12385645B2Gas control system0 cites · 20240% earned
- 1063US12098675B2Combustion of fuel0 cites · 20240% earned
- 1158US12538968B2Portable heating systems0 cites · 20240% earned
- 1254US12163474B2System and method for purging a fuel manifold of a gas turbine engine using a flow divider0 cites · 20240% earned
- 1350US12435675B2Fuel systems and methods for purging0 cites · 20240% earned
- 1446US12359814B2Reducing noise from a combustor of a gas turbine engine0 cites · 20240% earned
- 1542US12359808B1Variable fuel cooker0 cites · 20250% earned
- 1638US12305121B2Control method for a system having reduced nitrogen oxide emissions and for use in a carbo0 cites · 20240% earned
- 1733US12290847B2Infeed system for hydrolyzer0 cites · 20240% earned
- 1829US12181150B2Fuel transfer apparatus and boiler facility including same0 cites · 20240% earned
- 1925US12098848B2Injection manifold with Tesla valves for rotating detonation engines0 cites · 20240% earned
- 2021US12497925B2Systems for controlling a fuel blend for a gas turbine0 cites · 20240% earned
- 2117USD1083039SFuel-line fitting for a decorative-flame burner0 cites · 20250% earned
- 2213US12494732B2Apparatus and methods for efficient conversion of heat to electricity via emission of char0 cites · 20250% earned
- 238US12551738B2Retractable spout closure system with flame mitigation0 cites · 20240% earned
- 244US12546471B2Fuel tank monitoring systems and methods0 cites · 20240% earned
- 251US12012918B1Systems and methods for coking mitigation in fuel supply systems0 cites · 20240% earned
Active· last 5 yrs
The top-scoring F23K patents of the last 5 years
- 199US11643970B2✦ AIDual schedule flow divider valve, system, and method for use therein10 cites · 202281% earned
- 296US11852082B2✦ AISystems and methods for controlling a fuel blend for a gas turbine8 cites · 202380% earned
- 392US11885499B2✦ AIIgnition-based protocols for pellet grills5 cites · 202372% earned
- 488US11970977B2Variable restriction of a secondary circuit of a fuel injector6 cites · 202485% earned
- 583US11970976B2Variable restriction of fuel nozzle with an auxiliary circuit6 cites · 202485% earned
- 679US11566543B2Multi-functional fecal waste and garbage processor and associated methods7 cites · 202270% earned
- 775US11781484B2Secondary fuel flow demand fuel pumping system5 cites · 202277% earned
- 871US12066116B2Double flow rate gas solenoid valve4 cites · 202282% earned
- 967US11231178B2Removable burn pot6 cites · 202185% earned
- 1063US12055292B2Premixing apparatus3 cites · 202280% earned
- 1158US11761634B2Fuel injector assemblies4 cites · 202175% earned
- 1254US12173653B1Gas turbine engines and methods of controlling formation of condensates2 cites · 202567% earned
- 1350US11660577B2Fractal flow distribution system5 cites · 202284% earned
- 1446US11767979B2Injection manifold with tesla valves for rotating detonation engines3 cites · 202272% earned
- 1542US11629859B2Gas control system3 cites · 202163% earned
- 1638US11988178B2System and methods for propulsion and powering systems using recyclable metallic fuels2 cites · 202476% earned
- 1733US11435086B2Cooktop appliance and methods of operation3 cites · 202180% earned
- 1829US11079107B1Fluid flow diverter using purge fluid to create a positive pressure fluid barrier3 cites · 202180% earned
- 1925US11111448B1Decahydronaphthalene as an endothermic fuel for hypersonic vehicles3 cites · 202180% earned
- 2021US11445857B2Air circulation system and method3 cites · 202180% earned
- 2117US11192080B2Pyrolysis plant3 cites · 202180% earned
- 2213US11649967B2Knob assembly for cook top2 cites · 202258% earned
- 238US12084365B2Charging water oxidation reactor using recovered reactor energy2 cites · 202167% earned
- 244US11649969B2Control systems and methods for cooktop appliances2 cites · 202376% earned
- 251US11852354B2Control systems and methods for cooktop appliances2 cites · 202376% earned
All-time canon
The defining F23K patents of the whole record
- 199US6315815B1✦ AIMembrane based fuel deoxygenator512 cites · 200195% earned
- 296US4250817A✦ AIBurner furnace for solid fuels and a method of burning different kinds of solid fuel in th359 cites · 198194% earned
- 392US6851413B1✦ AIMethod and apparatus to increase combustion efficiency and to reduce exhaust gas pollutant206 cites · 200594% earned
- 488US6202574B1Combustion method and apparatus for producing a carbon dioxide end product205 cites · 200194% earned
- 583US7730711B2Methods and apparatus for a combustion turbine nitrogen purge system170 cites · 200794% earned
- 679US7721521B2Methods and apparatus for a combustion turbine fuel recirculation system and nitrogen purg167 cites · 200790% earned
- 775US5050375APressurized wet combustion at increased temperature153 cites · 199190% earned
- 871US4593202ACombination of supercritical wet combustion and compressed air energy storage152 cites · 198694% earned
- 967US7442239B2Fuel-conditioning skid151 cites · 200494% earned
- 1063US4117550AEmulsifying system143 cites · 197893% earned
- 1158US5429110AMobile pellet stove with thermal barrier and ventilated firepot132 cites · 199593% earned
- 1254US4340362AFuel flow means for portable space heaters129 cites · 198293% earned
- 1350US4824441AMethod and composition for decreasing emissions of sulfur oxides and nitrogen oxides129 cites · 198993% earned
- 1446US4898107APressurized wet combustion of wastes in the vapor phase126 cites · 199093% earned
- 1542US5873916AFuel emulsion blending system112 cites · 199993% earned
- 1638US7104784B1Device and method for feeding fuel107 cites · 200689% earned
- 1733US6808543B2Biomass gasification system and method107 cites · 200293% earned
- 1829US6145294ALiquid fuel and water injection purge system for a gas turbine107 cites · 200093% earned
- 1925US7776301B2Reducing mercury emissions from the burning of coal104 cites · 201077% earned
- 2021US6438963B1Liquid fuel and water injection purge systems and method for a gas turbine having a three-104 cites · 200293% earned
- 2117US5231937APulverized coal burner, pulverized coal boiler and method of burning pulverized coal104 cites · 199393% earned
- 2213US4519995AMethod of desulfurizing flue gases of coal firings100 cites · 198593% earned
- 238US5974780AMethod for reducing the production of NOX in a gas turbine99 cites · 199989% earned
- 244US7690204B2Method of maintaining a fuel Wobbe index in an IGCC installation98 cites · 200793% earned
- 251US7507083B2Reducing mercury emissions from the burning of coal97 cites · 200677% earned
Rising· last 2 yrs
Assignees whose newest F23K patents became public in the last 2 years — the current frontier
- 199GEN ELECTRIC91 patents · 1,103 citations
- 296PRATT & WHITNEY CANADA13 patents · 202 citations
- 392ROLLS ROYCE PLC14 patents · 109 citations
- 488VRC TECH LLC5 patents · 17 citations
- 583HAMILTON SUNDSTRAND CORP24 patents · 30 citations
- 679RINNAI KK9 patents · 11 citations
- 775WOODWARD INC4 patents · 5 citations
- 871MARLIN GAS SERVICES LLC3 patents · 4 citations
- 967UNIV ZHEJIANG4 patents · 12 citations
- 1063GE INFRASTRUCTURE TECHNOLOGY LLC4 patents · 2 citations
- 1158RAYTHEON TECH CORP2 patents · 5 citations
- 1254SCHAWBEL TECH LLC3 patents · 1 citations
- 1350PURDUE RESEARCH FOUNDATION2 patents · 3 citations
- 1446DOOSAN HEAVY IND & CONSTRUCTION CO LTD3 patents · 1 citations
- 1542FIVOVOS LLC2 patents · 1 citations
- 1638GMG Products LLC2 patents · 1 citations
- 1733OQAB DIETRICH INDUCTION INC1 patents · 2 citations
- 1829NINGBO RICHEN ELECTRICAL APPLIANCE CO LTD3 patents · 0 citations
- 1925RODGERS IAN2 patents · 1 citations
- 2021CLEAN HYDROGEN TECH CORP1 patents · 1 citations
- 2117LIGHTCELL INC2 patents · 0 citations
- 2213PANNULLO JOSEPH2 patents · 0 citations
- 238RED WEATHER SYSTEMS INC2 patents · 0 citations
- 244BOULDIN CORP1 patents · 0 citations
- 251RIEKE LLC1 patents · 0 citations
Active· last 5 yrs
Sustained F23K output across the last 5 years
- 199NOX II LTD23 patents · 446 citations
- 296GEN ELECTRIC91 patents · 1,103 citations
- 392HONEYWELL INT INC16 patents · 217 citations
- 488PRATT & WHITNEY CANADA13 patents · 202 citations
- 583DELAVAN INC14 patents · 164 citations
- 679ROLLS ROYCE PLC14 patents · 109 citations
- 775SIEMENS AG13 patents · 81 citations
- 871BILL & MELINDA GATES FOUND5 patents · 36 citations
- 967VRC TECH LLC5 patents · 17 citations
- 1063HAMILTON SUNDSTRAND CORP24 patents · 30 citations
- 1158LG ELECTRONICS INC9 patents · 11 citations
- 1254IHI CORP6 patents · 26 citations
- 1350HAIER US APPLIANCE SOLUTIONS INC9 patents · 14 citations
- 1446SAMSUNG ELECTRONICS CO LTD3 patents · 42 citations
- 1542HYLIION HOLDINGS CORP4 patents · 2 citations
- 1638RINNAI KK9 patents · 11 citations
- 1733AIR PROD & CHEM3 patents · 44 citations
- 1829GRAND MATE CO LTD5 patents · 10 citations
- 1925KINERGY CORP2 patents · 30 citations
- 2021ORKLI S COOP LTDA5 patents · 8 citations
- 2117RHEEM MFG CO2 patents · 92 citations
- 2213TRANSP IP HOLDINGS LLC3 patents · 8 citations
- 238WOODWARD INC4 patents · 5 citations
- 244JUPITER OXYGEN CORP3 patents · 7 citations
- 251MARLIN GAS SERVICES LLC3 patents · 4 citations
All-time canon
All-time PatentIndex Score in F23K
- 199NOX II LTD23 patents · 446 citations
- 296COMRIE DOUGLAS C8 patents · 380 citations
- 392DIPAC ASSOCIATES6 patents · 615 citations
- 488GEN ELECTRIC91 patents · 1,103 citations
- 583UNITED TECHNOLOGIES CORP34 patents · 1,156 citations
- 679COPRECITEC SL11 patents · 289 citations
- 775DENG DAVID17 patents · 290 citations
- 871COMBUSTION ENG52 patents · 1,058 citations
- 967HITACHI LTD7 patents · 296 citations
- 1063BABCOCK & WILCOX CO13 patents · 273 citations
- 1158HONEYWELL INT INC16 patents · 217 citations
- 1254FOSTER WHEELER ENERGY CORP13 patents · 295 citations
- 1350PRATT & WHITNEY CANADA13 patents · 202 citations
- 1446ADVANCED POWER SYSTEMS INTERNA5 patents · 126 citations
- 1542SURE ALLOY STEEL CORP7 patents · 163 citations
- 1638MITSUBISHI HEAVY IND LTD16 patents · 196 citations
- 1733DELAVAN INC14 patents · 164 citations
- 1829TEXTRON FUEL SYSTEMS4 patents · 236 citations
- 1925INT THERMAL INVESTMENTS LTD5 patents · 130 citations
- 2021SUNDSTRAND CORP5 patents · 108 citations
- 2117ALBIZURI INIGO4 patents · 131 citations
- 2213DETROIT STOKER CO8 patents · 125 citations
- 238BLACK ROBERT B7 patents · 128 citations
- 244ROLLS ROYCE PLC14 patents · 109 citations
- 251ROBERTSHAW CONTROLS CO5 patents · 125 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth