Topic leaderboard
Purifying combustible gases
Ranked by the PatentIndex Score — a 1–99 percentile within C10K · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest C10K patents became public in the last 2 years — the current frontier
- 199Brock Alan Forrest5 patents · 44 citations
- 296Xijia Lu5 patents · 44 citations
- 392Dave G. Newport13 patents · 27 citations
- 488Jerrod Hohman6 patents · 25 citations
- 583Renus Kelfkens9 patents · 20 citations
- 679Anthony F. Tenore4 patents · 31 citations
- 775Anthony N. Tenore4 patents · 31 citations
- 871Oluwadare Oluwaseun4 patents · 31 citations
- 967Matthew Caldwell7 patents · 10 citations
- 1063Orion Hanbury8 patents · 10 citations
- 1158Daniel A. Burciaga8 patents · 8 citations
- 1254Daniel Michael Leo9 patents · 8 citations
- 1350Navid Rafati4 patents · 17 citations
- 1446Richard D. Ridley4 patents · 10 citations
- 1542Martin Redeker4 patents · 6 citations
- 1638Michael D. Ackerson4 patents · 5 citations
- 1733Michael Steven Byars4 patents · 5 citations
- 1829Anja Rumplecker Galloway6 patents · 4 citations
- 1925Glenn Mcginnis5 patents · 4 citations
- 2021Brian Christopher Attwood5 patents · 2 citations
- 2117Justin Kevin Miller5 patents · 2 citations
- 2213Douglas D. Griffin2 patents · 16 citations
- 238James Bucher4 patents · 2 citations
- 244Yingyun Qiao4 patents · 6 citations
- 251Yuanyu Tian4 patents · 6 citations
Active· last 5 yrs
Sustained C10K output across the last 5 years
- 199Peter G. Tiverios16 patents · 228 citations
- 296Stephen H. Lucas16 patents · 228 citations
- 392Lewis L. Rich12 patents · 158 citations
- 488Andreas Tsangaris11 patents · 305 citations
- 583Brock Alan Forrest5 patents · 44 citations
- 679Xijia Lu5 patents · 44 citations
- 775Charles T. Ludwig9 patents · 31 citations
- 871Ernest J. Zavoral, Sr.9 patents · 31 citations
- 967Henry W. Brandhorst, Jr.9 patents · 31 citations
- 1063Ullrich H. Engel9 patents · 31 citations
- 1158Dave G. Newport13 patents · 27 citations
- 1254William Lewis Trapp7 patents · 55 citations
- 1350Jerrod Hohman6 patents · 25 citations
- 1446Renus Kelfkens9 patents · 20 citations
- 1542Paul H. Humble6 patents · 15 citations
- 1638Robert S. Wegeng6 patents · 15 citations
- 1733Dustin Slack5 patents · 34 citations
- 1829James A. Mennell5 patents · 34 citations
- 1925Justin William Murphy7 patents · 9 citations
- 2021Anthony F. Tenore4 patents · 31 citations
- 2117Anthony N. Tenore4 patents · 31 citations
- 2213Oluwadare Oluwaseun4 patents · 31 citations
- 238Jeffrey Raymond Hufton3 patents · 72 citations
- 244Brandon Davis10 patents · 16 citations
- 251Kim Aasberg-Petersen9 patents · 17 citations
All-time canon
Career PatentIndex Score in C10K
- 199Momtaz N. Mansour12 patents · 1,218 citations
- 296David W. Warren5 patents · 743 citations
- 392Kanda-Swamy Durai-Swamy5 patents · 743 citations
- 488Charles H. Titus10 patents · 787 citations
- 583Dennis E. J. Johnson9 patents · 227 citations
- 679Grigori A. Abramov9 patents · 227 citations
- 775Marcus A. Wiley9 patents · 227 citations
- 871Richard A. Kleinke9 patents · 227 citations
- 967Fawzy T. Abdelmalek5 patents · 530 citations
- 1063Peter G. Tiverios16 patents · 228 citations
- 1158Stephen H. Lucas16 patents · 228 citations
- 1254Warren G. Schlinger5 patents · 353 citations
- 1350Lewis L. Rich12 patents · 158 citations
- 1446Takahiro Oshita10 patents · 386 citations
- 1542Robert M. Suggitt7 patents · 366 citations
- 1638Shosaku Fujinami8 patents · 320 citations
- 1733Shuichi Nagato8 patents · 316 citations
- 1829Kazuo Takano7 patents · 273 citations
- 1925Masaaki Irie7 patents · 273 citations
- 2021Tetsuhisa Hirose7 patents · 273 citations
- 2117Hiroyuki Fujimura5 patents · 253 citations
- 2213Charles P. Marion9 patents · 346 citations
- 238Alexander Doerges10 patents · 331 citations
- 244Manfred Kriebel7 patents · 306 citations
- 251George Morris Gulko12 patents · 321 citations
Rising· last 2 yrs
The top-scoring C10K patents made public in the last 2 years
- 199US12359139B2✦ AISystem and methods of processing waste to generate energy and green hydrogen2 cites · 202467% earned
- 296US12404466B2✦ AIBlends of low carbon and conventional fuels with improved performance characteristics0 cites · 20240% earned
- 392US12297308B2✦ AIEthanol0 cites · 20240% earned
- 488US12480055B2Pyrolysis reactor system and method0 cites · 20240% earned
- 583US12239939B2Methods and apparatus for recycling tail gas in syngas fermentation to ethanol0 cites · 20240% earned
- 679US12415170B2Electric-powered, closed-loop, continuous-feed, endothermic energy-conversion systems and 0 cites · 20250% earned
- 775US12203040B2Two-stage syngas production with separate char and product gas inputs into the second stag0 cites · 20240% earned
- 871US12480061B2System and method for liquid fuel production from carbonaceous materials using recycled co0 cites · 20240% earned
- 967US12098658B2Cogeneration of chemical products0 cites · 20240% earned
- 1063US12241025B2Thermally integrated process for the production of liquid fuels with a solid oxide electro0 cites · 20240% earned
- 1158US12421458B2Production of sustainable aviation fuel from CO2 and low-carbon hydrogen0 cites · 20240% earned
- 1254US12102987B2Catalytic material with sulfur-tolerant support0 cites · 20240% earned
- 1350US12377395B2Systems and methods for controlling a Power-to-X process to reduce feedstock costs0 cites · 20240% earned
- 1446US12404454B2System and process for converting waste plastic into fuel0 cites · 20240% earned
- 1542US12278867B2Method and internet of things (IoT) system for determining purification parameter of gas i0 cites · 20240% earned
- 1638US12036704B1Carbon fiber recycling system and method of operation0 cites · 20240% earned
- 1733US12227700B2Fine mineral matter for upgrading the quality of the products of thermal or catalytic crac0 cites · 20240% earned
- 1829US12365846B2Arrangement for producing hydrocarbons with parallel gasifier and cracking unit0 cites · 20240% earned
- 1925US12258526B2Manufacturing method and manufacturing apparatus of syngas, and manufacturing method of li0 cites · 20240% earned
- 2021US12305121B2Control method for a system having reduced nitrogen oxide emissions and for use in a carbo0 cites · 20240% earned
- 2117US12264122B2Tail gas utilization for mixed alcohols production0 cites · 20240% earned
- 2213US12384978B1Apparatus and method for capturing renewable and non-renewable energy from biodegradable a0 cites · 20250% earned
- 238US12221586B2Enhanced gasification system and method0 cites · 20240% earned
- 244US11981564B1Carbon neutral conversion of residue0 cites · 20240% earned
- 251US12247170B2Systems and methods for the thermochemical production and refining of hydrocarbon compound0 cites · 20240% earned
Active· last 5 yrs
The top-scoring C10K patents of the last 5 years
- 199US11987763B2✦ AIProcesses for producing biocarbon pellets with high fixed-carbon content and optimized rea15 cites · 202389% earned
- 296US11753698B2✦ AIBio-reduction of metal ores integrated with biomass pyrolysis18 cites · 202284% earned
- 392US11578271B1✦ AICarbon fiber recycling system and method of operation16 cites · 202384% earned
- 488US11512257B1Integration of hydrogen-rich fuel-gas production with olefins production plant16 cites · 202289% earned
- 583US11760630B2Process and system for producing low carbon intensity renewable hydrogen10 cites · 202381% earned
- 679US11465094B2PSA separation-purification system and process integrated with water gas shift reaction pr14 cites · 202189% earned
- 775US11339337B1Elimination of poly- and perfluoro alkyl substances (PFAS) in a wastewater biosolids gasif10 cites · 202281% earned
- 871US11173451B1Removal of hydrogen impurity from gas streams10 cites · 202187% earned
- 967US12018213B2Reactor feed systems10 cites · 202287% earned
- 1063US11014810B1Carbon capture, waste upgrade, and chemicals production using improved flexicoking9 cites · 202187% earned
- 1158US11471817B2Method for processing plastic waste pyrolysis gas8 cites · 202280% earned
- 1254US11015127B2Continuous reflux reactor under pressure and controlled condenser system for thermochemica8 cites · 202180% earned
- 1350US11518940B2Plastic recycling system and method thereof8 cites · 202186% earned
- 1446US11680215B2Processes for producing high biogenic concentration Fischer-Tropsch liquids derived from m6 cites · 202157% earned
- 1542US11565982B2Process for conversion of carbon dioxide and power into fuels and chemicals6 cites · 202174% earned
- 1638US11466223B2Two-stage syngas production with separate char and product gas inputs into the second stag5 cites · 202272% earned
- 1733US11692206B2Production of aromatics by reverse water gas shift, fermentation and recycling to pyrolysi4 cites · 202282% earned
- 1829US11608475B2Fuel production system for producing liquid fuel from biomass feedstock and renewable ener4 cites · 202182% earned
- 1925US11661559B2Universal feeder with clamshell transfer screw3 cites · 202267% earned
- 2021US12359139B2System and methods of processing waste to generate energy and green hydrogen2 cites · 202467% earned
- 2117US11534733B2Electric-powered, closed-loop, continuous-feed, endothermic energy-conversion systems and 3 cites · 202163% earned
- 2213US11572512B2Gasification process3 cites · 202267% earned
- 238US12398328B2Chemical recycling of processed mixed plastic waste streams3 cites · 202372% earned
- 244US11498834B1Production of hydrogen-rich fuel-gas with reduced CO2 emission3 cites · 202280% earned
- 251US11306255B2Multistage thermolysis method for safe and efficient conversion of e-waste materials3 cites · 202163% earned
All-time canon
The defining C10K patents of the whole record
- 199US5955039A✦ AICoal gasification and hydrogen production system and method453 cites · 199995% earned
- 296US7762825B2✦ AIElectro-mechanical interfaces to mount robotic surgical arms441 cites · 200790% earned
- 392US4133825A✦ AIProduction of substitute natural gas357 cites · 197994% earned
- 488US4138442AProcess for the manufacture of gasoline341 cites · 197994% earned
- 583US4994093AMethod of producing methanol synthesis gas328 cites · 199194% earned
- 679US4336233ARemoval of CO2 and/or H2 S and/or COS from gases containing these constituents317 cites · 198294% earned
- 775US4407973AMethanol from coal and natural gas311 cites · 198394% earned
- 871US8585420B2Apparatus for surgical systems with electro-mechanical interfaces to mount robotic surgica259 cites · 201289% earned
- 967US8066524B2Surgical system with electro-mechanical interfaces to mount robotic surgical arms258 cites · 201089% earned
- 1063US4892567ASimultaneous removal of mercury and water from fluids253 cites · 199094% earned
- 1158US5937652AProcess for coal or biomass fuel gasification by carbon dioxide extracted from a boiler fl227 cites · 199994% earned
- 1254US6013158AApparatus for converting coal to hydrocarbons219 cites · 200091% earned
- 1350US5059404AIndirectly heated thermochemical reactor apparatus and processes194 cites · 199187% earned
- 1446US5265410APower generation system191 cites · 199394% earned
- 1542US6306917B1Processes for the production of hydrocarbons, power and carbon dioxide from carbon-contain190 cites · 200191% earned
- 1638US4678860AProcess of producing liquid hydrocarbon fuels from biomass188 cites · 198794% earned
- 1733US4597776AHydropyrolysis process186 cites · 198694% earned
- 1829US5520894AProcess for removing carbon dioxide regeneratively from gas streams184 cites · 199694% earned
- 1925US7905990B2Rapid thermal conversion of biomass178 cites · 200985% earned
- 2021US4822935AHydrogasification of biomass to produce high yields of methane178 cites · 198994% earned
- 2117US5280757AMunicipal solid waste disposal process164 cites · 199494% earned
- 2213US5616154AMethod for the catalytic conversion of organic materials into a product gas163 cites · 199794% earned
- 238US4091073AProcess for the removal of H2 S and CO2 from gaseous streams157 cites · 197894% earned
- 244US5133190AMethod and apparatus for flue gas cleaning by separation and liquefaction of sulfur dioxid155 cites · 199294% earned
- 251US5536488AIndirectly heated thermochemical reactor processes154 cites · 199694% earned
Rising· last 2 yrs
Assignees whose newest C10K patents became public in the last 2 years — the current frontier
- 199SAUDI ARABIAN OIL CO40 patents · 129 citations
- 2968 RIVERS CAPITAL LLC7 patents · 58 citations
- 392UOP LLC19 patents · 65 citations
- 488THERMOCHEM RECOVERY INT INC17 patents · 48 citations
- 583LANZATECH INC6 patents · 14 citations
- 679INFINIUM TECHNOLOGY LLC12 patents · 12 citations
- 775SABIC GLOBAL TECHNOLOGIES BV6 patents · 45 citations
- 871EXXONMOBIL CHEMICAL PATENTS INC6 patents · 22 citations
- 967ARIES CLEAN TECH LLC8 patents · 13 citations
- 1063BASF CORP5 patents · 6 citations
- 1158SEKISUI CHEMICAL CO LTD11 patents · 2 citations
- 1254CARBON FIBER RECYCLING LLC2 patents · 16 citations
- 1350TEKNOLOGIAN TUTKIMUSKESKUS VTT OY6 patents · 3 citations
- 1446BRAVEN ENV LLC2 patents · 10 citations
- 1542DUKE TECH LLC3 patents · 2 citations
- 1638UNIV CHINA PETROLEUM EAST CHINA4 patents · 6 citations
- 1733HONDA MOTOR CO LTD3 patents · 4 citations
- 1829CHENGDU QINCHUAN IOT TECH CO LTD2 patents · 2 citations
- 1925Integrated Energy LLC2 patents · 2 citations
- 2021PLATINUM FUELS LLC2 patents · 0 citations
- 2117MONTAUK AG RENEWABLES LLC2 patents · 0 citations
- 2213ExxonMobil Product Solutions Company2 patents · 1 citations
- 238SK INNOVATION CO LTD3 patents · 0 citations
- 244OMALLEY TERRY2 patents · 0 citations
- 251RADICAL PLASTICS INC2 patents · 0 citations
Active· last 5 yrs
Sustained C10K output across the last 5 years
- 199BATTELLE MEMORIAL INSTITUTE11 patents · 558 citations
- 296SHELL OIL CO81 patents · 1,310 citations
- 392FULCRUM BIOENERGY INC13 patents · 174 citations
- 488AIR PROD & CHEM12 patents · 373 citations
- 583GEN ELECTRIC48 patents · 474 citations
- 679PRAXAIR TECHNOLOGY INC9 patents · 346 citations
- 775US ENERGY13 patents · 387 citations
- 871SAUDI ARABIAN OIL CO40 patents · 129 citations
- 967MITSUBISHI HEAVY IND LTD33 patents · 442 citations
- 1063EXXONMOBIL RES & ENG CO24 patents · 58 citations
- 1158HALDOR TOPSOE AS24 patents · 103 citations
- 1254OSAKA GAS CO LTD11 patents · 75 citations
- 13508 RIVERS CAPITAL LLC7 patents · 58 citations
- 1446UOP LLC19 patents · 65 citations
- 1542EASTMAN CHEM CO13 patents · 78 citations
- 1638THERMOCHEM RECOVERY INT INC17 patents · 48 citations
- 1733CHZ TECH LLC9 patents · 31 citations
- 1829GAS TECHNOLOGY INST6 patents · 45 citations
- 1925AIR LIQUIDE29 patents · 51 citations
- 2021RECYCLING TECH LTD4 patents · 42 citations
- 2117SIEMENS AG12 patents · 30 citations
- 2213CARBON TECH HOLDINGS LLC6 patents · 34 citations
- 238EXPANDER ENERGY INC6 patents · 19 citations
- 244LANZATECH INC6 patents · 14 citations
- 251ANELLOTECH INC6 patents · 16 citations
All-time canon
All-time PatentIndex Score in C10K
- 199MFG & TECH CONVERSION INT INC7 patents · 836 citations
- 296INTEGRATED ENVIRONMENTAL TECHN7 patents · 585 citations
- 392BATTELLE MEMORIAL INSTITUTE11 patents · 558 citations
- 488EXXON RESEARCH ENGINEERING CO27 patents · 1,436 citations
- 583BASF AG7 patents · 793 citations
- 679TEXACO INC97 patents · 3,371 citations
- 775METALLGESELLSCHAFT AG38 patents · 1,113 citations
- 871TEXACO DEVELOPMENT CORP18 patents · 832 citations
- 967SHELL OIL CO81 patents · 1,310 citations
- 1063THERMO TECHNOLOGIES LLC6 patents · 200 citations
- 1158INST GAS TECHNOLOGY8 patents · 492 citations
- 1254RENTECH INC11 patents · 381 citations
- 1350FULCRUM BIOENERGY INC13 patents · 174 citations
- 1446KRUPP KOPPERS GMBH23 patents · 697 citations
- 1542AIR PROD & CHEM12 patents · 373 citations
- 1638EBARA CORP10 patents · 365 citations
- 1733GEN ELECTRIC48 patents · 474 citations
- 1829PRAXAIR TECHNOLOGY INC9 patents · 346 citations
- 1925US ENERGY13 patents · 387 citations
- 2021LINDE AG38 patents · 512 citations
- 2117COMBUSTION ENG9 patents · 346 citations
- 2213SAUDI ARABIAN OIL CO40 patents · 129 citations
- 238AHLSTROEM OY7 patents · 254 citations
- 244MITSUBISHI HEAVY IND LTD33 patents · 442 citations
- 251KELLOGG BROWN & ROOT LLC9 patents · 251 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth