Topic leaderboard
Combustion using only solid fuel
Ranked by the PatentIndex Score — a 1–99 percentile within F23B · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F23B patents became public in the last 2 years — the current frontier
- 199Roger Dahle3 patents · 16 citations
- 296Jeffrey H. Jan3 patents · 9 citations
- 392Spencer H. Jan3 patents · 9 citations
- 488George B. Dietrich2 patents · 5 citations
- 583Haroon B. Oqab2 patents · 5 citations
- 679Kalpit Shah4 patents · 1 citations
- 775Joel Kramka2 patents · 4 citations
- 871Megan Piunti2 patents · 4 citations
- 967Michael Sawalski2 patents · 4 citations
- 1063Montel Caruthers2 patents · 4 citations
- 1158Robert Woodruff2 patents · 4 citations
- 1254Ryan Richard Butrym2 patents · 4 citations
- 1350Steven Merrill Harrington2 patents · 4 citations
- 1446David Cassidy1 patents · 1 citations
- 1542Peter Williams1 patents · 1 citations
- 1638Venkateswara Rao Sodisetti1 patents · 1 citations
- 1733Vivek Nair1 patents · 1 citations
- 1829DONNELLY BRIAN C1 patents · 0 citations
- 1925LUNDBERG RYAN P1 patents · 0 citations
- 2021MIDDLETON JAMES DEAN1 patents · 0 citations
- 2117Robert Soreo1 patents · 0 citations
- 2213William E. Rabbitt1 patents · 0 citations
- 238KEIL PETER1 patents · 0 citations
- 244LIU XIMEI1 patents · 0 citations
- 251MALECHA SVEN1 patents · 0 citations
Active· last 5 yrs
Sustained F23B output across the last 5 years
- 199Brian C. Donnelly9 patents · 58 citations
- 296Ryan P. Lundberg9 patents · 58 citations
- 392David Eckhardt5 patents · 28 citations
- 488Raymond Dueck3 patents · 37 citations
- 583Daniel W. Sluder4 patents · 19 citations
- 679Michael Colston4 patents · 19 citations
- 775Guy Stuart Ritchie3 patents · 11 citations
- 871Nigel Bruce True3 patents · 11 citations
- 967Brandon Lane Barry3 patents · 12 citations
- 1063Corey Dewayne Brooks3 patents · 12 citations
- 1158Roger Dahle3 patents · 16 citations
- 1254Jeffrey H. Jan3 patents · 9 citations
- 1350Spencer H. Jan3 patents · 9 citations
- 1446Gary Wisener2 patents · 15 citations
- 1542Andrew Paul Chiodo3 patents · 7 citations
- 1638Brydger Van Otten3 patents · 7 citations
- 1733Kevin Davis3 patents · 7 citations
- 1829Steven Harold Krimsky3 patents · 7 citations
- 1925Anthony Hamilton5 patents · 6 citations
- 2021Sleiman Abdallah5 patents · 6 citations
- 2117Christer Gustavsson3 patents · 3 citations
- 2213David Pallarès3 patents · 3 citations
- 238Henrik Ström3 patents · 3 citations
- 244Henrik Thunman3 patents · 3 citations
- 251Martin Seemann3 patents · 3 citations
All-time canon
Career PatentIndex Score in F23B
- 199David B. Goodson9 patents · 273 citations
- 296Oliver J. Whitfield9 patents · 266 citations
- 392Robert A. Ashworth5 patents · 185 citations
- 488Carrol E. Buckner5 patents · 247 citations
- 583Brian C. Donnelly9 patents · 58 citations
- 679Ryan P. Lundberg9 patents · 58 citations
- 775Christopher A. Wiklof7 patents · 119 citations
- 871Heinz Mallek5 patents · 75 citations
- 967Roger D. Eshleman4 patents · 96 citations
- 1063David Eckhardt5 patents · 28 citations
- 1158Curtis Tom3 patents · 157 citations
- 1254Daniel J. Myers3 patents · 157 citations
- 1350Dennis W. Solas3 patents · 157 citations
- 1446Pravin Soni3 patents · 157 citations
- 1542Ramesh Damani3 patents · 157 citations
- 1638Reynaldo Quintana3 patents · 157 citations
- 1733Ron L. Hale3 patents · 157 citations
- 1829Soonho Song3 patents · 157 citations
- 1925Alexander H. Drummond4 patents · 116 citations
- 2021Joseph P. Traeger3 patents · 262 citations
- 2117Mark A. Traeger3 patents · 262 citations
- 2213Randolph J. Traeger3 patents · 262 citations
- 238David A. Larson4 patents · 35 citations
- 244Joseph Colannino6 patents · 82 citations
- 251Tracy A. Prevo5 patents · 82 citations
Rising· last 2 yrs
The top-scoring F23B patents made public in the last 2 years
- 199US11988178B2✦ AISystem and methods for propulsion and powering systems using recyclable metallic fuels2 cites · 202476% earned
- 290US12076718B2✦ AISystems and methods for pyrolysis reactions1 cites · 202456% earned
- 380US12535219B2✦ AIPellet grills0 cites · 20240% earned
- 470US12203652B1Fire pit with fire grate0 cites · 20250% earned
- 560US12446728B2Cooking station and system with removable insert having multiple cooking modes0 cites · 20240% earned
- 650US12163094B2Pyrolysis reaction system0 cites · 20240% earned
- 740US12498115B2Non-gas fire pit0 cites · 20240% earned
- 830US12514273B2Modular smoker0 cites · 20240% earned
- 920US12474045B2Burn control apparatus for solid fuel0 cites · 20240% earned
- 1010US12575576B2Oven0 cites · 20240% earned
- 111US12590703B2Electronic closed-loop control device for fireplaces comprising a lower combustion system0 cites · 20240% earned
Active· last 5 yrs
The top-scoring F23B patents of the last 5 years
- 199US11774089B1✦ AICombustible fuel burning stove with pellet adapter8 cites · 202380% earned
- 296US11732895B1✦ AIMethods and systems for open-loop ignition of a smoke generator fuel source5 cites · 202372% earned
- 392US11231178B2✦ AIRemovable burn pot6 cites · 202185% earned
- 488US11953198B2Non-gas fire pit4 cites · 202175% earned
- 583US11852409B2Use of biomass furnace for direct air-drying of grain and other particulate2 cites · 202376% earned
- 679USD961985SSmokeless wood stove3 cites · 202280% earned
- 775US11079115B1Non-electric gravity feed pellet stove3 cites · 202180% earned
- 871US11976573B2Thermal power plant3 cites · 202280% earned
- 967US11988178B2System and methods for propulsion and powering systems using recyclable metallic fuels2 cites · 202476% earned
- 1063US11445857B2Air circulation system and method3 cites · 202180% earned
- 1158US11197581B2Table having a heating appliance2 cites · 202161% earned
- 1254US11781751B2Combustion system comprising an annular shroud burner2 cites · 202167% earned
- 1350US12076718B2Systems and methods for pyrolysis reactions1 cites · 202456% earned
- 1446US11291334B2Grill apparatus and firebox assembly for use in a grill2 cites · 202176% earned
- 1542US11041627B1Combustion grate for a pellet stove2 cites · 202176% earned
- 1638US11940153B2Fuel conditioner for grill1 cites · 202267% earned
- 1733US12018835B2Biomass upgrading system1 cites · 202146% earned
- 1829US11851617B2Pyrolysis reaction system and method of pyrolysing an organic feed1 cites · 202150% earned
- 1925US12535219B2Pellet grills0 cites · 20240% earned
- 2021US12203652B1Fire pit with fire grate0 cites · 20250% earned
- 2117US12446728B2Cooking station and system with removable insert having multiple cooking modes0 cites · 20240% earned
- 2213US11435077B2System and method for combustion of non-gaseous fuels and derivatives thereof0 cites · 20210% earned
- 238US12007112B2Pellet smoker0 cites · 20220% earned
- 244US12234991B2Pellet grill0 cites · 20230% earned
- 251US11844463B2Grill with cold smoke grilling modes0 cites · 20220% earned
All-time canon
The defining F23B patents of the whole record
- 199US6223737B1✦ AIPellet fuel burning device187 cites · 200194% earned
- 296US5154599A✦ AIMethod for apparatus for combusting fuel in a combustion chamber187 cites · 199294% earned
- 392US4823684A✦ AIPellet-fired barbecue176 cites · 198994% earned
- 488US4593202ACombination of supercritical wet combustion and compressed air energy storage152 cites · 198694% earned
- 583US5702244AApparatus and method for reducing particulate emissions from combustion processes113 cites · 199793% earned
- 679US8387612B2Self-contained heating unit and drug-supply unit employing same111 cites · 200982% earned
- 775US4319556ACatalytic stove105 cites · 198293% earned
- 871US6397790B1Octane enhanced natural gas for internal combustion engine101 cites · 200293% earned
- 967US5873356AHigh efficiency wood pellet stove93 cites · 199993% earned
- 1063US6336449B1Solid fuel burner for a heating apparatus89 cites · 200293% earned
- 1158US4807542ACoal additives79 cites · 198993% earned
- 1254US4436100ASmoke generator77 cites · 198493% earned
- 1350US4936047AMethod of capturing sulfur in coal during combustion and gasification77 cites · 199093% earned
- 1446US5285738APellet burning heating device76 cites · 199489% earned
- 1542US5138957AHot gas generation system for producing combustible gases for a burner from particulate so76 cites · 199293% earned
- 1638US6085674ALow nitrogen oxides emissions from carbonaceous fuel combustion using three stages of oxid75 cites · 200093% earned
- 1733US4249673ACombusting device for generation of a combustion gas75 cites · 198193% earned
- 1829US5133266APellet burning heating device73 cites · 199289% earned
- 1925US4494525AStove with catalytic converter70 cites · 198592% earned
- 2021US4213404ASolid refuse furnace70 cites · 198092% earned
- 2117US4407206APartial combustion process for coal69 cites · 198392% earned
- 2213US7900553B1Apparatus for cooking using wood pellets68 cites · 201192% earned
- 238US5014680ASelf-powered automatic secondary air controllers for woodstoves and small furnaces67 cites · 199192% earned
- 244US4580583ASmoke generating device66 cites · 198692% earned
- 251US6651645B1Pressurized combustion and heat transfer process and apparatus66 cites · 200392% earned
Rising· last 2 yrs
Assignees whose newest F23B patents became public in the last 2 years — the current frontier
- 199WEBER STEPHEN PRODUCTS LLC10 patents · 58 citations
- 290NORTH ATLANTIC IMP LLC3 patents · 16 citations
- 380SOLO BRANDS LLC3 patents · 8 citations
- 470OQAB DIETRICH INDUCTION INC2 patents · 5 citations
- 560MELBOURNE INST TECH4 patents · 1 citations
- 650LAMPLIGHT FARMS INC2 patents · 4 citations
- 740MIDDLETON MIXOLOGY LLC3 patents · 0 citations
- 830CLEAN HYDROGEN TECH CORP1 patents · 1 citations
- 920LIU XIMEI1 patents · 0 citations
- 1010MAXITROL GMBH & CO KG1 patents · 0 citations
- 111ZIPPO MFG CO1 patents · 0 citations
Active· last 5 yrs
Sustained F23B output across the last 5 years
- 199WEBER STEPHEN PRODUCTS LLC10 patents · 58 citations
- 296TRAEGER PELLET GRILLS LLC4 patents · 19 citations
- 392NORTH ATLANTIC IMP LLC3 patents · 16 citations
- 488JUPITER OXYGEN CORP3 patents · 7 citations
- 583DANSONS US LLC3 patents · 9 citations
- 679SOLO BRANDS LLC3 patents · 8 citations
- 775BRADLEY W C CO5 patents · 6 citations
- 871BIOSHARE AB3 patents · 3 citations
- 967UNITED STATES STOVE COMPANY4 patents · 5 citations
- 1063DUECK RAYMOND2 patents · 13 citations
- 1158ORIGINAL PELLET GRILL COMPANY LLC2 patents · 8 citations
- 1254OQAB DIETRICH INDUCTION INC2 patents · 5 citations
- 1350SHARKNINJA OPERATING LLC2 patents · 5 citations
- 14468 RIVERS CAPITAL LLC2 patents · 4 citations
- 1542MELBOURNE INST TECH4 patents · 1 citations
- 1638LAMPLIGHT FARMS INC2 patents · 4 citations
- 1733ONWARD MULTI CORP INC2 patents · 3 citations
- 1829THE CASHMERE CAVEMAN CO WILD KITCHENS LTD2 patents · 2 citations
- 1925FRAUNHOFER GES FORSCHUNG2 patents · 2 citations
- 2021TRIPLE GREEN PRODUCTS INC2 patents · 2 citations
- 2117Independence Stove Company LLC1 patents · 3 citations
- 2213WPG GoldSun Trading Inc1 patents · 3 citations
- 238NEWAGE PRODUCTS INC1 patents · 2 citations
- 244SUN MOUNTAIN STOVE WORKS INC1 patents · 2 citations
- 251HALO PRODUCTS GROUP LLC3 patents · 0 citations
All-time canon
All-time PatentIndex Score in F23B
- 199PYRO IND INC6 patents · 218 citations
- 296CORNING GLASS WORKS5 patents · 180 citations
- 392COMBUSTION ENG7 patents · 145 citations
- 488WEBER STEPHEN PRODUCTS LLC10 patents · 58 citations
- 583UNIV MAINE6 patents · 132 citations
- 679CLEARSIGN COMB CORP8 patents · 123 citations
- 775VERMONT CASTINGS4 patents · 115 citations
- 871ESHLAND ENTERPRISES INC4 patents · 96 citations
- 967TRAEGER JOSEPH P3 patents · 262 citations
- 1063BIOCHAR NOW LLC5 patents · 29 citations
- 1158KERNFORSCHUNGSANLAGE JUELICH4 patents · 72 citations
- 1254DAUVERGNE HECTOR A3 patents · 109 citations
- 1350AQUA CHEM INC3 patents · 77 citations
- 1446US NAVY4 patents · 52 citations
- 1542VON ROLL AG3 patents · 58 citations
- 1638MOUNTAIN HOME DEV COMPANY2 patents · 149 citations
- 1733CONS ENG CO INC3 patents · 61 citations
- 1829BIOLITE LLC3 patents · 63 citations
- 1925SWEDISH BIOBURNER SYST AB3 patents · 45 citations
- 2021GREEN JR WILLIAM D2 patents · 143 citations
- 2117WHITFIELD OLIVER J3 patents · 48 citations
- 2213US ENVIRONMENT3 patents · 35 citations
- 238MARTIN UMWELT & ENERGIETECH3 patents · 51 citations
- 244ALEXZA PHARMACEUTICALS INC2 patents · 46 citations
- 251DETROIT STOKER CO3 patents · 32 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth