Topic leaderboard
Removal or treatment of combustion products
Ranked by the PatentIndex Score — a 1–99 percentile within F23J · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F23J patents became public in the last 2 years — the current frontier
- 199Darlene K. Sherrod6 patents · 30 citations
- 296Matthew A. Cotton6 patents · 30 citations
- 392Marcus K. Wiley6 patents · 30 citations
- 488Marcus A. Wiley6 patents · 30 citations
- 583Thomas K. Gale6 patents · 30 citations
- 679Timothy P. Lenneman6 patents · 30 citations
- 775Henrik Fleischer7 patents · 158 citations
- 871Alexander K. Maghsadi5 patents · 31 citations
- 967Jeffrey R. Weilert5 patents · 31 citations
- 1063Larry Baxter4 patents · 20 citations
- 1158Knut Børseth5 patents · 63 citations
- 1254Al Yablonsky4 patents · 11 citations
- 1350Joe David Jones4 patents · 11 citations
- 1446Alex Thompson5 patents · 8 citations
- 1542Ben Heichelbech6 patents · 8 citations
- 1638Connor Rivard6 patents · 8 citations
- 1733Ivan Van Der Walt4 patents · 8 citations
- 1829Eugene S. Genkin2 patents · 35 citations
- 1925Erwin Platvoet3 patents · 8 citations
- 2021Robert Løseth3 patents · 2 citations
- 2117Svein Borge Hellesmark3 patents · 2 citations
- 2213Daniel Joseph Barnett2 patents · 2 citations
- 238Stefan Johansson2 patents · 2 citations
- 244Esam Z. Hamad2 patents · 1 citations
- 251Murali Krishna Kalaga2 patents · 1 citations
Active· last 5 yrs
Sustained F23J output across the last 5 years
- 199Douglas C. Comrie30 patents · 826 citations
- 296Henry V. Krigmont7 patents · 480 citations
- 392Rodney John Allam14 patents · 447 citations
- 488Glenn William Brown, Jr.11 patents · 389 citations
- 583Miles R. Palmer10 patents · 389 citations
- 679Sharon Sjostrom23 patents · 468 citations
- 775Michael D. Durham18 patents · 194 citations
- 871Kenneth E. Baldrey16 patents · 191 citations
- 967Jeremy Eron Fetvedt6 patents · 192 citations
- 1063Ramon Bisque8 patents · 61 citations
- 1158Nina Bergan French6 patents · 60 citations
- 1254Seiji Kagawa22 patents · 93 citations
- 1350Connie Senior5 patents · 40 citations
- 1446Jon Lagarenne5 patents · 40 citations
- 1542Toshihiro Fukuda16 patents · 50 citations
- 1638Darlene K. Sherrod6 patents · 30 citations
- 1733Matthew A. Cotton6 patents · 30 citations
- 1829Marcus K. Wiley6 patents · 30 citations
- 1925Marcus A. Wiley6 patents · 30 citations
- 2021Thomas K. Gale6 patents · 30 citations
- 2117Timothy P. Lenneman6 patents · 30 citations
- 2213Henrik Fleischer7 patents · 158 citations
- 238Alexander K. Maghsadi5 patents · 31 citations
- 244Jeffrey R. Weilert5 patents · 31 citations
- 251Brock Alan Forrest4 patents · 59 citations
All-time canon
Career PatentIndex Score in F23J
- 199Douglas C. Comrie30 patents · 826 citations
- 296Shosaku Fujinami15 patents · 489 citations
- 392Takahiro Oshita15 patents · 489 citations
- 488Kazuo Takano14 patents · 442 citations
- 583Tetsuhisa Hirose14 patents · 442 citations
- 679Bert Zauderer8 patents · 559 citations
- 775Henry V. Krigmont7 patents · 480 citations
- 871Vladimir Zamansky10 patents · 500 citations
- 967Felix E. Spokoyny11 patents · 547 citations
- 1063Rodney John Allam14 patents · 447 citations
- 1158Glenn William Brown, Jr.11 patents · 389 citations
- 1254Miles R. Palmer10 patents · 389 citations
- 1350Fawzy T. Abdelmalek7 patents · 510 citations
- 1446Vitali Victor Lissianski18 patents · 561 citations
- 1542Masaaki Irie10 patents · 316 citations
- 1638John M. Rummler5 patents · 200 citations
- 1733William Randall Seeker14 patents · 474 citations
- 1829Peter Martin Maly15 patents · 462 citations
- 1925John Philip Comer8 patents · 258 citations
- 2021John Wurster8 patents · 258 citations
- 2117David K. Anderson8 patents · 429 citations
- 2213Hisashi Kobayashi8 patents · 370 citations
- 238Lawrence E. Bool, Iii6 patents · 369 citations
- 244Shintaro Honjo12 patents · 415 citations
- 251Stephen Allen Johnson7 patents · 227 citations
Rising· last 2 yrs
The top-scoring F23J patents made public in the last 2 years
- 199US11953207B1✦ AICombustible fuel burning fire pit4 cites · 202462% earned
- 296US12338740B2✦ AICarbon capture system and method with recuperative power recovery1 cites · 202467% earned
- 392US12303830B2✦ AICombustion system having a fuel cell and a carbon capture system1 cites · 202467% earned
- 488US12330115B2Method and apparatus for improved efficiency and flue gas scrubbing in a fired heater usin1 cites · 202467% earned
- 583US12215287B1Methods and apparatus for carbonaceous fuel and/or feedstock treatment0 cites · 20250% earned
- 679US12179148B2Carbon dioxide sequestration with magnesium hydroxide and regeneration of magnesium hydrox0 cites · 20240% earned
- 775US12257546B2Devices, systems, facilities and processes for carbon capture optimization in industrial f0 cites · 20240% earned
- 871US12146659B2Methods, systems, and devices for flue gas cooling0 cites · 20240% earned
- 967US12405000B2Building emission processing and/or sequestration systems and methods0 cites · 20240% earned
- 1063US12515165B2Systems and methods for removal of mercury and/or hydrochloric acid from gas streams using0 cites · 20240% earned
- 1158US12345413B2Compact waste combustion system0 cites · 20240% earned
- 1254US12303825B2Carbon capture system comprising a gas turbine with two burners0 cites · 20240% earned
- 1350US12152774B2Offshore carbon capture and injection method and system0 cites · 20240% earned
- 1446US12521675B2Methods and equipment for treatment of odorous gas streams0 cites · 20240% earned
- 1542US12258671B2Reactors and methods for production of sustainable chemicals using carbon emissions of met0 cites · 20240% earned
- 1638US12453992B2Chimney cleaning system0 cites · 20240% earned
- 1733US12540731B2Abatement apparatus0 cites · 20240% earned
- 1829US12485381B2Process for onboard carbon capture using CO2 stripping and heat recovery0 cites · 20240% earned
- 1925US12331928B1Fire pit ash cleanup0 cites · 20250% earned
- 2021US12492815B2Apparatus and process for oxidant formation0 cites · 20250% earned
- 2117US12565993B2Chimney damper assembly0 cites · 20240% earned
- 2213US12145100B2Ship with a carbon dioxide capture system0 cites · 20240% earned
- 238US12521770B2Abatement device, deposited material removing means, and deposited material removing metho0 cites · 20240% earned
- 244US11927345B1Method and device to reduce emissions of nitrogen oxides and increase heat transfer in fir0 cites · 20240% earned
- 251US12203650B2Waste heat recovery system and method0 cites · 20240% earned
Active· last 5 yrs
The top-scoring F23J patents of the last 5 years
- 199US11391465B1✦ AICombustible fuel burning fire pit with removable fire grate20 cites · 202276% earned
- 296US11219858B2✦ AIElectrochemical capture of Lewis acid gases11 cites · 202178% earned
- 392US11484825B1✦ AIDevices, systems, facilities and processes for carbon capture optimization in industrial f8 cites · 202273% earned
- 488US11015127B2Continuous reflux reactor under pressure and controlled condenser system for thermochemica8 cites · 202180% earned
- 583US10909547B1System and method for plastic waste disposal8 cites · 202186% earned
- 679US11939526B2Vent stack lids and associated systems and methods4 cites · 202275% earned
- 775US11231203B1Systems, devices, and/or methods for managing condensate4 cites · 202275% earned
- 871US11421915B2Vent attachment for a tankless water heater3 cites · 202172% earned
- 967US12338740B2Carbon capture system and method with recuperative power recovery1 cites · 202467% earned
- 1063US12303830B2Combustion system having a fuel cell and a carbon capture system1 cites · 202467% earned
- 1158US11873991B2Offshore carbon capture and injection method and system2 cites · 202376% earned
- 1254US11845040B2Flue gas treatment method and installation2 cites · 202276% earned
- 1350US11959635B2Compact waste combustion system2 cites · 202167% earned
- 1446US11578632B2Exhaust gas heater2 cites · 202276% earned
- 1542US11925898B2Flue gas low-temperature adsorption denitrification method2 cites · 202176% earned
- 1638US11229876B1Systems for the control and use of fluids and particles in fuel applications including boi3 cites · 202280% earned
- 1733US11883776B2Systems and methods for removal of mercury and/or hydrochloric acid from gas streams using2 cites · 202161% earned
- 1829US11781751B2Combustion system comprising an annular shroud burner2 cites · 202167% earned
- 1925US11833467B2Boiler plant and carbon dioxide removal method2 cites · 202276% earned
- 2021US12172124B2Carbon dioxide recovery system and carbon dioxide recovery method2 cites · 202276% earned
- 2117US12398879B2Processes and apparatuses for burning a hydrogen fuel and a hydrocarbon fuel1 cites · 202367% earned
- 2213US10961478B1Methods and apparatus for the utilization of treated carbonaceous fuels and feedstocks2 cites · 202153% earned
- 238US11247176B2Apparatus and method for direct air capture of carbon dioxide from the atmosphere2 cites · 202167% earned
- 244US11578652B2Combined heat and power system and method of operation2 cites · 202167% earned
- 251US11772046B2Carbon dioxide sequestration with magnesium hydroxide and regeneration of magnesium hydrox1 cites · 202344% earned
All-time canon
The defining F23J patents of the whole record
- 199US5724805A✦ AIPower plant with carbon dioxide capture and zero pollutant emissions449 cites · 199895% earned
- 296US5884475A✦ AIMethod and device for introducing liquid into an exhaust-gas purification system325 cites · 199994% earned
- 392US4889698A✦ AIProcess for removal or mercury vapor and/or vapor of noxious organic compounds and/or nitr274 cites · 198994% earned
- 488US6521021B1Thief process for the removal of mercury from flue gas225 cites · 200394% earned
- 583US6202574B1Combustion method and apparatus for producing a carbon dioxide end product205 cites · 200194% earned
- 679US6539708B1Metering system193 cites · 200394% earned
- 775US6505567B1Oxygen fired circulating fluidized bed steam generator182 cites · 200394% earned
- 871US6848374B2Control of mercury emissions from solid fuel combustion171 cites · 200494% earned
- 967US6375909B1Method for the removal of mercury and nitrogen oxides from combustion flue gas169 cites · 200294% earned
- 1063US5467722AMethod and apparatus for removing pollutants from flue gas164 cites · 199594% earned
- 1158US6638485B1Process for treating exhaust gas and exhaust gas treating equipment160 cites · 200394% earned
- 1254US6206685B1Method for reducing NOx in combustion flue gas using metal-containing additives159 cites · 200190% earned
- 1350US4383478ARain cap with pivot support means157 cites · 198394% earned
- 1446US5133190AMethod and apparatus for flue gas cleaning by separation and liquefaction of sulfur dioxid155 cites · 199294% earned
- 1542US4059045AEngine exhaust rain cap with extruded bearing support means146 cites · 197794% earned
- 1638US7282189B2Production of hydrogen and removal and sequestration of carbon dioxide from coal-fired fur131 cites · 200493% earned
- 1733US6610263B2System and process for removal of pollutants from a gas stream129 cites · 200284% earned
- 1829US6702570B2Firing method for a heat consuming device utilizing oxy-fuel combustion129 cites · 200493% earned
- 1925US5906806AReduced emission combustion process with resource conservation and recovery options "Z128 cites · 199988% earned
- 2021US5353721APulse combusted acoustic agglomeration apparatus and process128 cites · 199493% earned
- 2117US4793981AIntegrated injection and bag filter house system for SOx -NOx -particulate control with re128 cites · 198893% earned
- 2213US6132692ABarrier discharge conversion of SO2 and NOx to acids126 cites · 200093% earned
- 238US8071060B2Flue gas control system of coal combustion boiler and operating method thereof126 cites · 201193% earned
- 244US5787823AReduction of mercury in coal combustion gas system and method125 cites · 199890% earned
- 251US4440098AWaste material incineration system and method124 cites · 198493% earned
Rising· last 2 yrs
Assignees whose newest F23J patents became public in the last 2 years — the current frontier
- 199AIR PROD & CHEM10 patents · 221 citations
- 296VRC TECH LLC5 patents · 17 citations
- 392NEXT CARBON SOLUTIONS LLC6 patents · 8 citations
- 488SOLO BRANDS LLC3 patents · 4 citations
- 583ARVOS LJUNGSTROM LLC5 patents · 2 citations
- 679GRAYMONT PA INC3 patents · 3 citations
- 775CARBONFREE CHEMICALS HOLDINGS LLC3 patents · 1 citations
- 871STENA POWER & LNG SOLUTIONS AS3 patents · 2 citations
- 967BD ENERGY SYSTEMS LLC2 patents · 2 citations
- 1063JOHANSSON STEFAN2 patents · 2 citations
- 1158SAUDI ARABIAN OIL CO2 patents · 2 citations
- 1254CARBONQUEST INC2 patents · 0 citations
- 1350KARBON CCS LTD3 patents · 0 citations
- 1446TEMPLE STEPHEN R2 patents · 0 citations
- 1542GE INFRASTRUCTURE TECHNOLOGY LLC1 patents · 1 citations
- 1638SUSTAINABLE ENERGY SOLUTIONS INC1 patents · 1 citations
- 1733EDWARDS LTD2 patents · 0 citations
- 1829NANOKEM CO LTD2 patents · 0 citations
- 1925SCHLUMBERGER TECHNOLOGY CORP2 patents · 0 citations
- 2021SHANGHAI YUANHAN ENERGY & CHEMICAL TECH CO LTD2 patents · 0 citations
- 2117XRG TECH LLC2 patents · 0 citations
- 2213YANTAI POWER PLANT OF HUANENG SHANDONG POWER GENERATION CO LTD2 patents · 0 citations
- 238DE GEUS BRADLEY WALTER1 patents · 0 citations
- 244Dioxycle1 patents · 0 citations
- 251A O SMITH CHINA WATER HEATER CO LTD1 patents · 0 citations
Active· last 5 yrs
Sustained F23J output across the last 5 years
- 199NOX II LTD23 patents · 446 citations
- 296BABCOCK & WILCOX CO58 patents · 1,727 citations
- 392MITSUBISHI HEAVY IND LTD58 patents · 716 citations
- 488GEN ELECTRIC56 patents · 733 citations
- 583AIR PROD & CHEM10 patents · 221 citations
- 679ADA ES INC20 patents · 114 citations
- 775SMITH CORP A O6 patents · 97 citations
- 871AIR LIQUIDE11 patents · 70 citations
- 967HONEYWELL INT INC5 patents · 51 citations
- 1063VRC TECH LLC5 patents · 17 citations
- 11588 RIVERS CAPITAL LLC7 patents · 25 citations
- 1254ANDRITZ OY6 patents · 21 citations
- 1350RHEEM MFG CO7 patents · 43 citations
- 1446JUPITER OXYGEN CORP3 patents · 77 citations
- 1542NORITZ CORP25 patents · 18 citations
- 1638IHI CORP15 patents · 15 citations
- 1733KAWASAKI HEAVY IND LTD9 patents · 22 citations
- 1829SOLO DTC BRANDS LLC2 patents · 27 citations
- 1925SUNCOKE TECH & DEVELOPMENT LLC2 patents · 36 citations
- 2021NEXT CARBON SOLUTIONS LLC6 patents · 8 citations
- 2117CARRIER CORP3 patents · 63 citations
- 2213SOUTHWEST RES INST3 patents · 22 citations
- 238EBERSPAECHER CLIMATE CONTROL SYS GMBH & CO KG5 patents · 5 citations
- 244SAMSUNG ELECTRONICS CO LTD3 patents · 33 citations
- 251MASSACHUSETTS INST TECHNOLOGY2 patents · 12 citations
All-time canon
All-time PatentIndex Score in F23J
- 199NOX II LTD23 patents · 446 citations
- 296COMRIE DOUGLAS C8 patents · 380 citations
- 392BABCOCK & WILCOX CO58 patents · 1,727 citations
- 488SIEMENS AG22 patents · 782 citations
- 583EBARA CORP36 patents · 691 citations
- 679US ENERGY11 patents · 631 citations
- 775ELECTRIC POWER RES INST15 patents · 510 citations
- 871ABDELMALEK FAWZY T5 patents · 395 citations
- 967ALSTOM TECHNOLOGY LTD58 patents · 486 citations
- 1063ENVIROSCRUB TECHNOLOGIES CORP5 patents · 262 citations
- 1158WAHLCO INC9 patents · 390 citations
- 1254FUNK HARALD F7 patents · 350 citations
- 1350COMBUSTION ENG37 patents · 791 citations
- 1446MITSUBISHI HEAVY IND LTD58 patents · 716 citations
- 1542GEN ELECTRIC56 patents · 733 citations
- 1638STEINMUELLER GMBH L & C15 patents · 383 citations
- 1733HEAT EXCHANGER IND INC6 patents · 289 citations
- 1829WESTINGHOUSE ELECTRIC CORP19 patents · 471 citations
- 1925HERA LLC7 patents · 258 citations
- 2021EISENBERGER PETER6 patents · 161 citations
- 2117FOSTER WHEELER ENERGY CORP26 patents · 551 citations
- 2213AHLSTROEM OY27 patents · 508 citations
- 238FOSTER WHEELER ENERGIA OY20 patents · 406 citations
- 244METALLGESELLSCHAFT AG17 patents · 349 citations
- 251PRAXAIR TECHNOLOGY INC10 patents · 285 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth