Topic leaderboard
Treatment or chemical modification of rubbers
Ranked by the PatentIndex Score — a 1–99 percentile within C08C · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest C08C patents became public in the last 2 years — the current frontier
- 199Hiroshi Mouri19 patents · 327 citations
- 296William M. Cole17 patents · 330 citations
- 392Mark W. Smale16 patents · 205 citations
- 488Yingyi Huang22 patents · 236 citations
- 583Robert W. White18 patents · 123 citations
- 679Aaron Kenneth Amstutz14 patents · 36 citations
- 775Luke Michael Haverhals14 patents · 36 citations
- 871William B. Coe6 patents · 32 citations
- 967Michael R. Hartzell11 patents · 26 citations
- 1063Taigyoo Park4 patents · 9 citations
- 1158Ho Young Lee15 patents · 7 citations
- 1254Isaiah Amstutz6 patents · 3 citations
- 1350Skylar Clement7 patents · 3 citations
- 1446Jung-Hwan Oh5 patents · 0 citations
- 1542Peter Francis Walker2 patents · 2 citations
- 1638Jae Sun Choi7 patents · 0 citations
- 1733Gregory J. E. Davidson6 patents · 0 citations
- 1829Manuela Pompei4 patents · 0 citations
- 1925Haruka Nishiyama2 patents · 0 citations
- 2021Kazuto Natsuyama2 patents · 0 citations
- 2117Kokoro Hamachi2 patents · 0 citations
- 2213Noritoshi Yagihashi2 patents · 0 citations
- 238Laura S. Kocsis3 patents · 0 citations
- 244Ryan J. Hue3 patents · 0 citations
- 251Walter A. Salamant3 patents · 0 citations
Active· last 5 yrs
Sustained C08C output across the last 5 years
- 199Hiroshi Mouri19 patents · 327 citations
- 296William M. Cole17 patents · 330 citations
- 392Terrence E. Hogan51 patents · 420 citations
- 488Yuan-Yong Yan64 patents · 386 citations
- 583Mark W. Smale16 patents · 205 citations
- 679Yingyi Huang22 patents · 236 citations
- 775Christine Rademacher28 patents · 293 citations
- 871Robert W. White18 patents · 123 citations
- 967Dane K. Parker16 patents · 255 citations
- 1063Jean-Luc Cabioch8 patents · 432 citations
- 1158Hoo-Chae Kim8 patents · 125 citations
- 1254Howard A. Colvin10 patents · 70 citations
- 1350Sang Mi Lee19 patents · 76 citations
- 1446Makoto Ashiura17 patents · 83 citations
- 1542Ro Mi Lee28 patents · 74 citations
- 1638Keisuke Chino6 patents · 77 citations
- 1733Aaron Kenneth Amstutz14 patents · 36 citations
- 1829Luke Michael Haverhals14 patents · 36 citations
- 1925Jin Young Kim15 patents · 55 citations
- 2021Shinichi Sekikawa10 patents · 60 citations
- 2117Liqing Ma13 patents · 60 citations
- 2213Wouter De Jong8 patents · 60 citations
- 238William B. Coe6 patents · 32 citations
- 244Albert C Pierz6 patents · 33 citations
- 251Ian T Pierz6 patents · 33 citations
All-time canon
Career PatentIndex Score in C08C
- 199Robert H. Grubbs6 patents · 814 citations
- 296Sonbinh T. Nguyen6 patents · 814 citations
- 392Iwakazu Hattori19 patents · 1,353 citations
- 488Mitsuhiko Sakakibara9 patents · 1,058 citations
- 583David F. Lawson56 patents · 2,215 citations
- 679Mark L. Stayer, Jr.29 patents · 1,612 citations
- 775Thomas A. Antkowiak27 patents · 1,319 citations
- 871James E. Hall24 patents · 756 citations
- 967John R. Schreffler10 patents · 650 citations
- 1063Takuo Sone22 patents · 753 citations
- 1158Allan C. Morgan7 patents · 551 citations
- 1254Bin Chung7 patents · 551 citations
- 1350Ivan Zlatko Podobnik7 patents · 551 citations
- 1446Melinda Ann Mabry7 patents · 551 citations
- 1542Hartmuth Buding13 patents · 726 citations
- 1638Jean-Michel Favrot23 patents · 964 citations
- 1733Tatsuo Fujimaki20 patents · 821 citations
- 1829Yoichi Ozawa29 patents · 765 citations
- 1925William L. Hergenrother66 patents · 1,320 citations
- 2021Pierre Robert11 patents · 839 citations
- 2117Carl L. Willis17 patents · 517 citations
- 2213Tatsuro Hamada8 patents · 471 citations
- 238Shuichi Akita14 patents · 646 citations
- 244Dale L. Handlin, Jr.9 patents · 398 citations
- 251Adel Farhan Halasa53 patents · 918 citations
Rising· last 2 yrs
The top-scoring C08C patents made public in the last 2 years
- 199US12486386B2✦ AIProcess for regenerating a monolithic, macro-structural, inter-penetrating elastomer netwo0 cites · 20240% earned
- 294US12297308B2✦ AIEthanol0 cites · 20240% earned
- 388US12344706B2✦ AICurative and method0 cites · 20240% earned
- 481US12116425B2Articles comprising crosslinked polymer network comprising thioether crosslinks and proces0 cites · 20240% earned
- 575US12398231B2Modified conjugated diene-based polymer, method for preparing the same and rubber composit0 cites · 20240% earned
- 669US12545750B2Method for the diimide hydrogenation of emulsified unsaturated polymers0 cites · 20240% earned
- 763US12509556B2Functionalized hydrogenated interpolymer with non-hydrogenated segment0 cites · 20240% earned
- 856US12319754B2Chlorinated copolymers and polymer products including chlorinated copolymer0 cites · 20240% earned
- 950US12544988B2Article comprising a rubber-like film-based article firmly fixed to a substrate0 cites · 20240% earned
- 1044US12359004B2Processes for the removal of rubber from non-Hevea plants0 cites · 20240% earned
- 1138US12324105B2Maleimide resin composition, prepreg, resin film, laminated board, printed wiring board, a0 cites · 20240% earned
- 1231US12503532B2Rubber composition and truck tire0 cites · 20240% earned
- 1325US12264209B2Rubber composition and truck tire0 cites · 20240% earned
- 1419US12565576B2Deproteinized natural rubber latex and preparation method0 cites · 20240% earned
- 1513US12577509B2Liquid antiadhesive composition for unvulcanized rubber, water-diluted liquid antiadhesive0 cites · 20240% earned
- 166US12559685B2Method of processing tyres into pyrolytic oil quality by introducing a co-feed0 cites · 20240% earned
- 171US12534558B2Polymer terminated with polyaromatic hydrocarbon0 cites · 20240% earned
Active· last 5 yrs
The top-scoring C08C patents of the last 5 years
- 199US12227651B2✦ AIRubber blend, sulfur-crosslinkable rubber mixture, and vehicle tire4 cites · 202282% earned
- 296US11834526B2✦ AIProcesses for the removal of rubber from non-Hevea plants3 cites · 202254% earned
- 392US11840622B2✦ AIProcess for regenerating a monolithic, macro-structural, inter-penetrating elastomer netwo3 cites · 202261% earned
- 488US12304245B2Tire rubber composition and pneumatic tire4 cites · 202382% earned
- 583US11873391B2Carboxylic acid modified-nitrile based copolymer latex and latex composition for dip-formi3 cites · 202280% earned
- 679US12187894B2Rubber composition and pneumatic tire4 cites · 202282% earned
- 775US11292895B2Rubber blend, sulfur-crosslinkable rubber mixture, and vehicle tire4 cites · 202182% earned
- 871US11859039B2Branched polymers made using multifunctional coupling agents3 cites · 202280% earned
- 967US11760835B2Curative and method2 cites · 202161% earned
- 1063US11407856B2Curative2 cites · 202151% earned
- 1158US11414503B2Modified conjugated diene-based polymer, rubber composition, and tire3 cites · 202180% earned
- 1254US11702485B2Modified conjugated diene-based polymer and rubber composition including the same2 cites · 202167% earned
- 1350US10995163B2Modified conjugated diene-based polymer and rubber composition including the same2 cites · 202176% earned
- 1446US11339240B2Conjugated diene-based polymer, branching agent, production method for conjugated diene-ba2 cites · 202176% earned
- 1542US11505684B2Vehicle tire rubber composite material1 cites · 202267% earned
- 1638US11498982B1Method for concentrating rubber emulsion and product thereof1 cites · 202267% earned
- 1733US12202922B2Modifying agent and modified conjugated diene polymer prepared by using the same1 cites · 202267% earned
- 1829US12018108B2Modified conjugated diene-based polymer1 cites · 202267% earned
- 1925US12479982B2Cross-linked product and tire1 cites · 202267% earned
- 2021US11780992B2Dip molding composition, method of producing glove, and glove1 cites · 202156% earned
- 2117US11976180B2Xanthogen compound dispersion, conjugated-diene-based polymer latex composition, and film 1 cites · 202167% earned
- 2213US11807704B2Functionalized polymer, process for preparing and rubber compositions containing the funct1 cites · 202167% earned
- 238US11414509B2Star-branched diene rubber1 cites · 202167% earned
- 244US12110355B2Method for producing conjugated diene polymer0 cites · 20210% earned
- 251US12037544B2Crosslinking of swellable polymer with PEI0 cites · 20220% earned
All-time canon
The defining C08C patents of the whole record
- 199US5056109A✦ AIMethod and apparatus for controlling transmission power in a cdma cellular mobile telephon1,415 cites · 199195% earned
- 296US4581429A✦ AIPolymerization process and polymers produced thereby440 cites · 198695% earned
- 392US5977238A✦ AIRubber composition based on carbon black having silica fixed to its surface and on diene p348 cites · 199994% earned
- 488US4397994AHigh vinyl polybutadiene or styrene-butadiene copolymer335 cites · 198394% earned
- 583US6503973B2Vulcanizable rubber composition usable for the manufacture of a tire, and a tire comprisin333 cites · 200194% earned
- 679US6815473B2Rubber composition usable as a tire tread330 cites · 200294% earned
- 775US5697856ASolid golf ball and process for producing the same291 cites · 199794% earned
- 871US3985830AStar polymers and process for the preparation thereof264 cites · 197691% earned
- 967US4464515APolymer hydrogenation process238 cites · 198494% earned
- 1063US4039593APreparation of hydroxy-terminated conjugated diene polymers217 cites · 197794% earned
- 1158US5567784AProcess for producing diene rubbers polymerized by means of Nd catalysts and exhibiting re217 cites · 199694% earned
- 1254US5064910APreparation of conjugated diene polymers modified with an organo-tin or germanium halide211 cites · 199194% earned
- 1350US4631315AHydrogenation of nitrile group-containing unsaturated polymers209 cites · 198694% earned
- 1446US4503196APolymer hydrogenation process203 cites · 198594% earned
- 1542US4906706AModified conjugated diene polymer and process for production thereof201 cites · 199094% earned
- 1638US6048923AElastomer composites method and apparatus199 cites · 200086% earned
- 1733US6194505B1Rubber composition for solid golf ball and solid golf ball194 cites · 200194% earned
- 1829US7342070B2Conjugated diolefin (co)polymer rubber, process for producing (co)polymer rubber, rubber c183 cites · 200494% earned
- 1925US5750815AOlefin metathesis coupling using ruthenium and osmium carbene complexes179 cites · 199884% earned
- 2021US6992147B1Modified polymers prepared with lanthanide-based catalysts178 cites · 200690% earned
- 2117US5844050AModified conjugated diene polymer, process for producing same and composition comprising s168 cites · 199894% earned
- 2213US4616069AProcess for making diene polymer rubbers168 cites · 198694% earned
- 238US5728917APolymer depolymerization using ruthenium and osmium carbene complexes164 cites · 199884% earned
- 244US5521309ATertiary-amino allyl-or xylyl-lithium initiators and method of preparing same164 cites · 199688% earned
- 251US6977281B1Modified polymers prepared with lanthanide-based catalysts164 cites · 200590% earned
Rising· last 2 yrs
Assignees whose newest C08C patents became public in the last 2 years — the current frontier
- 199BRIDGESTONE CORP260 patents · 4,211 citations
- 293GOODYEAR TIRE & RUBBER175 patents · 2,151 citations
- 386LG CHEMICAL LTD149 patents · 222 citations
- 479NATURAL FIBER WELDING INC14 patents · 36 citations
- 571COE WILLIAM B6 patents · 32 citations
- 664CARIFLEX PTE LTD5 patents · 3 citations
- 757ARLANXEO SINGAPORE PTE LTD5 patents · 0 citations
- 850SEKISUI CHEMICAL CO LTD2 patents · 0 citations
- 943US GOV AIR FORCE2 patents · 0 citations
- 1036PARKER DANE K2 patents · 0 citations
- 1129LION SPECIALTY CHEMICALS CO LTD2 patents · 0 citations
- 1221G 3 CHICKADEE PURCASER LLC1 patents · 0 citations
- 1314HUNAN VONTEX NEW MATERIAL TECH CO LTD1 patents · 0 citations
- 147RESONAC CORP1 patents · 0 citations
- 151UNIV MONASH1 patents · 0 citations
Active· last 5 yrs
Sustained C08C output across the last 5 years
- 199BRIDGESTONE CORP260 patents · 4,211 citations
- 296GOODYEAR TIRE & RUBBER175 patents · 2,151 citations
- 392ASAHI CHEMICAL IND33 patents · 630 citations
- 488MICHELIN & CIE52 patents · 614 citations
- 583SUMITOMO RUBBER IND98 patents · 873 citations
- 679YOKOHAMA RUBBER CO LTD51 patents · 260 citations
- 775LG CHEMICAL LTD149 patents · 222 citations
- 871ZEON CORP76 patents · 142 citations
- 967KURARAY CO24 patents · 116 citations
- 1063LANXESS DEUTSCHLAND GMBH32 patents · 104 citations
- 1158NATURAL FIBER WELDING INC14 patents · 36 citations
- 1254COE WILLIAM B6 patents · 32 citations
- 1350ARLANXEO DEUTSCHLAND GMBH40 patents · 44 citations
- 1446MOLECULAR REBAR DESIGN LLC7 patents · 20 citations
- 1542CONTINENTAL REIFEN DEUTSCHLAND GMBH10 patents · 37 citations
- 1638EVONIK OPERATIONS GMBH9 patents · 51 citations
- 1733NIPPON SODA CO8 patents · 68 citations
- 1829SHINETSU CHEMICAL CO8 patents · 51 citations
- 1925CHI MEI CORP12 patents · 16 citations
- 2021IND TECH RES INST6 patents · 53 citations
- 2117HENKEL AG & CO KGAA4 patents · 19 citations
- 2213KULTEVAT INC3 patents · 17 citations
- 238CONOCOPHILLIPS CO3 patents · 16 citations
- 244KOREA KUMHO PETROCHEMICAL CO LTD5 patents · 14 citations
- 251ENEOS MAT CORPORATION11 patents · 5 citations
All-time canon
All-time PatentIndex Score in C08C
- 199CALIFORNIA INST OF TECHN6 patents · 814 citations
- 296BRIDGESTONE CORP260 patents · 4,211 citations
- 392JAPAN SYNTHETIC RUBBER CO LTD22 patents · 1,438 citations
- 488BAYER AG60 patents · 1,530 citations
- 583SHELL OIL CO109 patents · 2,191 citations
- 679NIPPON ZEON CO53 patents · 1,937 citations
- 775MICHELIN RECH TECH18 patents · 933 citations
- 871JSR CORP32 patents · 856 citations
- 967CABOT CORP10 patents · 573 citations
- 1063BRIDGESTONE FIRESTONE INC17 patents · 851 citations
- 1158UNIV AKRON6 patents · 569 citations
- 1254GOODYEAR TIRE & RUBBER175 patents · 2,151 citations
- 1350ASAHI CHEMICAL IND33 patents · 630 citations
- 1446POLYSAR LTD25 patents · 783 citations
- 1542PHILLIPS PETROLEUM CO50 patents · 912 citations
- 1638DOW CHEMICAL CO18 patents · 614 citations
- 1733MICHELIN & CIE52 patents · 614 citations
- 1829SUMITOMO RUBBER IND98 patents · 873 citations
- 1925FMC CORP35 patents · 596 citations
- 2021EXXON RESEARCH ENGINEERING CO33 patents · 603 citations
- 2117SUMITOMO CHEMICAL CO42 patents · 531 citations
- 2213BRIDGESTONE TIRE CO LTD11 patents · 326 citations
- 238FIRESTONE TIRE & RUBBER CO28 patents · 527 citations
- 244BASF AG32 patents · 494 citations
- 251HONEYWELL INT INC6 patents · 167 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth