Topic leaderboard
Working-up tar, pitch, asphalt & bitumen
Ranked by the PatentIndex Score — a 1–99 percentile within C10C · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest C10C patents became public in the last 2 years — the current frontier
- 199Mohammed Wohaibi17 patents · 40 citations
- 296Tom F. Pruitt17 patents · 40 citations
- 392Charles Agee Atkins15 patents · 7 citations
- 488Subodh Gupta6 patents · 6 citations
- 583Teng Xu4 patents · 10 citations
- 679Amanda Howerton2 patents · 0 citations
- 775Mark Lemaire2 patents · 0 citations
- 871Robert Nall2 patents · 0 citations
- 967Stuart Berg2 patents · 0 citations
- 1063Sarbajit Banerjee2 patents · 0 citations
- 1158Wasif Zaheer2 patents · 0 citations
- 1254Anita1 patents · 0 citations
- 1350Alden Ahlholm1 patents · 0 citations
- 1446Bing Wang1 patents · 0 citations
- 1542Brian Neal Dixon1 patents · 0 citations
- 1638Clarence Chase1 patents · 0 citations
- 1733Dongliang Hua1 patents · 0 citations
- 1829Edward Young1 patents · 0 citations
- 1925Haichao Wang1 patents · 0 citations
- 2021Hongyu Si1 patents · 0 citations
- 2117Jeffrey C. Yeh1 patents · 0 citations
- 2213Laizhi Sun1 patents · 0 citations
- 238Likun He1 patents · 0 citations
- 244Mark T. Hamann1 patents · 0 citations
- 251Madhavi Vadlamudi1 patents · 0 citations
Active· last 5 yrs
Sustained C10C output across the last 5 years
- 199Barry A. Freel14 patents · 755 citations
- 296Jean-Pascal Planche8 patents · 235 citations
- 392Jonathon Daniel Horton5 patents · 140 citations
- 488David C. Boyer10 patents · 115 citations
- 583Mohammed Wohaibi17 patents · 40 citations
- 679Tom F. Pruitt17 patents · 40 citations
- 775Amanda Prefontaine5 patents · 16 citations
- 871Derek Stanger5 patents · 16 citations
- 967James Auld5 patents · 16 citations
- 1063Jesse White5 patents · 16 citations
- 1158John Bleile5 patents · 16 citations
- 1254Kasra Nikooyeh5 patents · 16 citations
- 1350Matthew Targett14 patents · 19 citations
- 1446Charles Agee Atkins15 patents · 7 citations
- 1542Garrett W. Lindemann10 patents · 7 citations
- 1638Benjamin L. Goodrich4 patents · 22 citations
- 1733Joshua C. Walter4 patents · 22 citations
- 1829Kenneth F. Grzybowski3 patents · 26 citations
- 1925Thomas C. Holcombe4 patents · 14 citations
- 2021Subodh Gupta6 patents · 6 citations
- 2117Douglas Clarke2 patents · 78 citations
- 2213Pyoungchung Kim3 patents · 12 citations
- 238Alaeddin Mohseni4 patents · 5 citations
- 244Denis Muki Tibah4 patents · 8 citations
- 251Glenn A. Heeter3 patents · 27 citations
All-time canon
Career PatentIndex Score in C10C
- 199Barry A. Freel14 patents · 755 citations
- 296Robert G. Graham8 patents · 695 citations
- 392William B. Coe8 patents · 194 citations
- 488Charles A. Parker6 patents · 251 citations
- 583Frank Dillon6 patents · 251 citations
- 679Irwin C. Lewis22 patents · 416 citations
- 775Jean-Pascal Planche8 patents · 235 citations
- 871Paul Maldonado5 patents · 266 citations
- 967Lyle E. Moran10 patents · 251 citations
- 1063H. Ernest Romine11 patents · 244 citations
- 1158Donn R. Vermilion8 patents · 182 citations
- 1254David C. Trumbore12 patents · 229 citations
- 1350Michael G. Roberts14 patents · 297 citations
- 1446Alfred Marzocchi22 patents · 355 citations
- 1542Edward R. Harrington6 patents · 195 citations
- 1638Charles E. Bolen14 patents · 273 citations
- 1733Tsoung Y. Yan6 patents · 184 citations
- 1829Jorge A. Marzari12 patents · 174 citations
- 1925Michael R. Franzen9 patents · 159 citations
- 2021Kevin Gallagher5 patents · 118 citations
- 2117Judson E. Goodrich11 patents · 184 citations
- 2213Masatoshi Tsuchitani10 patents · 184 citations
- 238Ryoichi Nakajima8 patents · 169 citations
- 244James F. Pigford4 patents · 204 citations
- 251Neil Murdie4 patents · 204 citations
Rising· last 2 yrs
The top-scoring C10C patents made public in the last 2 years
- 199US12281268B2✦ AIFuel compositions from light tight oils and high sulfur fuel oils0 cites · 20240% earned
- 294US12209220B2✦ AIUsing stimulus to convert coal to mesophase pitch and carbon fibers0 cites · 20240% earned
- 388US12467001B2✦ AIMethods and apparatus for treating bitumen mixtures0 cites · 20240% earned
- 482US12319876B2Mechanically resilient bitumen microcapsules for midstream transport0 cites · 20240% earned
- 576US12454648B2Processes for producing mesophase pitch0 cites · 20240% earned
- 671US12590251B2Controlling mesophase softening point and production yield by varying solvent SBN via solv0 cites · 20240% earned
- 765US12391883B1Method, process and system for recycling an asphalt-based roofing material0 cites · 20250% earned
- 859US12551822B2Process for recovery of pyrolysis oil extraction solvent0 cites · 20240% earned
- 953US12371821B2Fabrication of carbon fibers with high mechanical properties0 cites · 20240% earned
- 1047US12435450B2Pitch compositions for spinning into carbon articles and methods relating thereto0 cites · 20240% earned
- 1141US12570905B2Steam cracking process for converting crude oils to pitch compositions spinnable into carb0 cites · 20240% earned
- 1235US12528753B2Polycyclic aromatic molecules, pitch and graphite, having low impurities and large crystal0 cites · 20240% earned
- 1329US12351759B1Mobile pyrolysis plant and related systems and methods0 cites · 20250% earned
- 1424US12516247B2Binder pitch for use in carbon composite materials0 cites · 20240% earned
- 1518US12152196B2Continuous solid organic matter pyrolysis polygeneration system and method for using same0 cites · 20240% earned
- 1612US12552993B2Purification of tar containing gas streams0 cites · 20240% earned
- 176US12104333B1System and method for processing recycled asphalt pavement or aggregate for asphalt produc0 cites · 20240% earned
- 181US12276071B2Method for heating and dispensing asphalt in an aboveground asphalt storage facility0 cites · 20240% earned
Active· last 5 yrs
The top-scoring C10C patents of the last 5 years
- 199US11377604B2✦ AIFuel compositions from light tight oils and high sulfur fuel oils6 cites · 202157% earned
- 296US11655419B2✦ AICompositions and methods for improved handling and combustion of petroleum pitch3 cites · 202272% earned
- 392US11214740B2✦ AIEndogenous asphaltenic encapsulation of bituminous materials with recovery of light ends4 cites · 202182% earned
- 488US11319491B1Pitch process3 cites · 202280% earned
- 583US11149361B1Preparation methods of high modulus carbon fiber (HMCF) and precursor (mesophase pitch (MP2 cites · 202176% earned
- 679US10941296B1Recycled oil and rubber-modified asphalt and method of use3 cites · 202167% earned
- 775US11193070B1Seeded mesophase pitch process2 cites · 202176% earned
- 871US11725146B2Mesophase pitch for carbon fiber production using supercritical carbon dioxide1 cites · 202250% earned
- 967US11731878B2Production of carbon fiber from asphaltenes1 cites · 202356% earned
- 1063US12257742B2Installation and method for treating composite materials based on thermoplastic materials1 cites · 202367% earned
- 1158US11305293B2Method and apparatus for recycling asphalt milings1 cites · 202156% earned
- 1254US12528993B2High value products derived from coal-based feedstocks1 cites · 202267% earned
- 1350US11975975B2Systems for producing advanced carbon materials at carbon source locations0 cites · 20210% earned
- 1446US11702598B2Method and systems for transporting bitumen in solidified form0 cites · 20210% earned
- 1542US12209220B2Using stimulus to convert coal to mesophase pitch and carbon fibers0 cites · 20240% earned
- 1638US12024678B2Receivers for solid formations of non-volatile bituminous materials suitable for reducing 0 cites · 20220% earned
- 1733US12098988B2Unified performance test for viscoelastic materials0 cites · 20210% earned
- 1829US11624029B2Heat treatment process for increased pitch yields0 cites · 20220% earned
- 1925US12077668B2Polymer modified asphalt for industrial applications0 cites · 20220% earned
- 2021US12252651B2Method of manufacturing recycled asphaltic and asphaltic limestone powder pellets and shap0 cites · 20230% earned
- 2117US12006474B2Methods and apparatus for treating bitumen mixtures0 cites · 20220% earned
- 2213US11459274B2System and method for generating tire rubber asphalt0 cites · 20210% earned
- 238US11530361B2Pyrolysis tar conversion0 cites · 20220% earned
- 244US11739258B2Proppant particulates formed from polyaromatic hydrocarbons0 cites · 20230% earned
- 251US11912941B2Systems and methods for the manufacture of high melting hydrocarbons from coal0 cites · 20210% earned
All-time canon
The defining C10C patents of the whole record
- 199US4458757A✦ AIIn situ shale-oil recovery process375 cites · 198494% earned
- 296US5961786A✦ AIApparatus for a circulating bed transport fast pyrolysis reactor system258 cites · 199994% earned
- 392US5792340A✦ AIMethod and apparatus for a circulating bed transport fast pyrolysis reactor system226 cites · 199894% earned
- 488US5733980AEthylene α-olefin block copolymers and methods for production thereof140 cites · 199893% earned
- 583US4425227AAmbient froth flotation process for the recovery of bitumen from tar sand123 cites · 198493% earned
- 679US4242246AProcess for the preparation of bituminous compositions making use of a mother solution con107 cites · 198093% earned
- 775US4208267AForming optically anisotropic pitches107 cites · 198093% earned
- 871US4880473AProcess for the production of fermentable sugars from biomass105 cites · 198993% earned
- 967US4545892ATreatment of primary tailings and middlings from the hot water extraction process for reco102 cites · 198593% earned
- 1063US5093216ACarbonaceous material and a non aqueous electrolyte cell using the same98 cites · 199293% earned
- 1158US4859317APurification process for bitumen froth94 cites · 198993% earned
- 1254US4851107AProcess for the hydrogenation of heavy and residual oils93 cites · 198993% earned
- 1350US4554313AProcess for preparing bitumen-polymer compositions, application of these compositions of t92 cites · 198589% earned
- 1446US5166118ACatalyst for the hydrogenation of hydrocarbon material92 cites · 199293% earned
- 1542US5746906ACoal tar pitch blend having low polycyclic aromatic hydrocarbon content and method of maki89 cites · 199893% earned
- 1638US4273685ARubber modified asphalt compositions88 cites · 198193% earned
- 1733US4240897AOil sands hot water extraction process84 cites · 198093% earned
- 1829US4085078ALow viscosity asphalt-rubber paving material79 cites · 197893% earned
- 1925US6844420B1Natural resin formulations78 cites · 200586% earned
- 2021US8519205B2Low water biomass-derived pyrolysis oils and processes for producing the same78 cites · 201289% earned
- 2117US6077464AProcess of making carbon-carbon composite material made from densified carbon foam77 cites · 200086% earned
- 2213US4482453ASupercritical extraction process77 cites · 198493% earned
- 238US4354928ASupercritical selective extraction of hydrocarbons from asphaltic petroleum oils77 cites · 198293% earned
- 244US7968020B2Hot asphalt cooling and pelletization process73 cites · 200989% earned
- 251US8100990B2Methods for integrated fast pyrolysis processing of biomass72 cites · 201189% earned
Rising· last 2 yrs
Assignees whose newest C10C patents became public in the last 2 years — the current frontier
- 199MAWETAL LLC17 patents · 40 citations
- 293UOP LLC8 patents · 22 citations
- 387CARBON HOLDINGS INTELLECTUAL PROPERTIES LLC15 patents · 7 citations
- 480CENOVUS ENERGY INC6 patents · 6 citations
- 573EXXONMOBIL CHEMICAL PATENTS INC6 patents · 10 citations
- 667EXXONMOBIL TECHNOLOGY & ENGINEERING COMPANY6 patents · 0 citations
- 760USD GROUP LLC2 patents · 0 citations
- 853ARQ IP LTD1 patents · 0 citations
- 947CHARM IND INC1 patents · 0 citations
- 1040ENGERGY RES INSTITUTE OF SHANDONG ACADEMY OF SCIENCES1 patents · 0 citations
- 1133H QUEST VANGUARD INC1 patents · 0 citations
- 1227LLC “ENERGY EFFICIENT BITUMEN TECHNOLOGIES” LLC “EBT”1 patents · 0 citations
- 1320MEVA ENERGY AB1 patents · 0 citations
- 1413NORTHSTAR CLEAN TECH INC1 patents · 0 citations
- 157RELIABLE ASPHALT PRODUCTS INC1 patents · 0 citations
- 161TANGOLD INC1 patents · 0 citations
Active· last 5 yrs
Sustained C10C output across the last 5 years
- 199MAWETAL LLC17 patents · 40 citations
- 296CANADIAN NAT RAILWAY CO5 patents · 16 citations
- 392UOP LLC8 patents · 22 citations
- 488CARBON HOLDINGS INTELLECTUAL PROPERTIES LLC15 patents · 7 citations
- 583TERRAPOWER LLC4 patents · 22 citations
- 679KOPPERS DELAWARE INC6 patents · 8 citations
- 775PRI ASPHALT TECH INC2 patents · 26 citations
- 871CENOVUS ENERGY INC6 patents · 6 citations
- 967MOHSENI ALAEDDIN4 patents · 5 citations
- 1063SAUDI ARABIAN OIL CO8 patents · 3 citations
- 1158SHINGLE RESOURCE RECYCLING LLC4 patents · 5 citations
- 1254EXXONMOBIL CHEMICAL PATENTS INC6 patents · 10 citations
- 1350TIBAH DENIS MUKI3 patents · 8 citations
- 1446UNIV CHINA PETROLEUM2 patents · 16 citations
- 1542ECOLAB USA INC6 patents · 4 citations
- 1638KOTEFSKI STOJAN3 patents · 3 citations
- 1733SUNCOR ENERGY INC3 patents · 3 citations
- 1829PHILERGOS GROUP FOUND4 patents · 0 citations
- 1925HORTON JONATHON DANIEL2 patents · 3 citations
- 2021EXXONMOBIL TECHNOLOGY & ENGINEERING COMPANY6 patents · 0 citations
- 2117SOLIDEUM HOLDINGS INC1 patents · 4 citations
- 2213MARATHON PETROLEUM CO LP1 patents · 3 citations
- 238DEFINO HECTOR2 patents · 1 citations
- 244FRAUNHOFER GES FORSCHUNG2 patents · 1 citations
- 251ADVANCED CARBON PRODUCTS LLC1 patents · 3 citations
All-time canon
All-time PatentIndex Score in C10C
- 199EXXON RESEARCH ENGINEERING CO38 patents · 1,436 citations
- 296COE WILLIAM B8 patents · 194 citations
- 392ALLIED SIGNAL INC8 patents · 260 citations
- 488CONOCO INC21 patents · 502 citations
- 583UNION CARBIDE CORP14 patents · 400 citations
- 679MOBIL OIL CORP10 patents · 279 citations
- 775PHILLIPS PETROLEUM CO7 patents · 247 citations
- 871KERR MCGEE REFINING CORP6 patents · 218 citations
- 967OWENS CORNING FIBERGLASS CORP33 patents · 484 citations
- 1063KUREHA CHEMICAL IND CO LTD15 patents · 292 citations
- 1158UCAR CARBON TECH5 patents · 156 citations
- 1254OWENS CORNING FIBERGLAS TECH13 patents · 200 citations
- 1350ASHLAND OIL INC6 patents · 141 citations
- 1446CHEVRON RES11 patents · 176 citations
- 1542MARUZEN PETROCHEM CO LTD7 patents · 140 citations
- 1638CHEVRON RES & TECH5 patents · 128 citations
- 1733SHELL OIL CO6 patents · 135 citations
- 1829MARATHON ASHLAND PETROLEUM LLC10 patents · 160 citations
- 1925ELF FRANCE4 patents · 219 citations
- 2021RUETGERSWERKE AG13 patents · 158 citations
- 2117DU PONT11 patents · 161 citations
- 2213ENSYN TECHNOLOGIES INC3 patents · 543 citations
- 238MITSUBISHI OIL CO8 patents · 105 citations
- 244TOA NENRYO KOGYO KK8 patents · 98 citations
- 251FUJI STANDARD RES INC6 patents · 90 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth