Topic leaderboard
Fibrous raw materials & mechanical treatment
Ranked by the PatentIndex Score — a 1–99 percentile within D21B · public-visibility date · generated 2026-07-19
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest D21B patents became public in the last 2 years — the current frontier
- 199Luc Gingras13 patents · 86 citations
- 296Naoko Omagari9 patents · 5 citations
- 392Patrik Pettersson5 patents · 3 citations
- 488Francois Lambert5 patents · 2 citations
- 583Koji Motohashi7 patents · 0 citations
- 679David B. Hodge2 patents · 1 citations
- 775Eric L. Hegg2 patents · 1 citations
- 871Tomohisa Yamazaki2 patents · 0 citations
- 967Tom Pires2 patents · 0 citations
- 1063Bryan Bals1 patents · 1 citations
- 1158Shannon S. Stahl1 patents · 1 citations
- 1254Zhaoyang Yuan1 patents · 1 citations
- 1350Changjin Shao1 patents · 0 citations
- 1446Faquan Yao1 patents · 0 citations
- 1542Hanwei Wang1 patents · 0 citations
- 1638Jun Sakurada1 patents · 0 citations
- 1733Junjiang Xiao1 patents · 0 citations
- 1829Karen Hasebe1 patents · 0 citations
- 1925Kensaku Matsuda1 patents · 0 citations
- 2021Kun Ding1 patents · 0 citations
- 2117Pengji Chen1 patents · 0 citations
- 2213Qingfeng Sun1 patents · 0 citations
- 238Shibin Shang1 patents · 0 citations
- 244Shanjing Xing1 patents · 0 citations
- 251Sotaro Oana1 patents · 0 citations
Active· last 5 yrs
Sustained D21B output across the last 5 years
- 199Toshiaki Yamagami25 patents · 171 citations
- 296Joseph W. Anderson6 patents · 167 citations
- 392John Claude Husband10 patents · 92 citations
- 488Per Svending10 patents · 92 citations
- 583Luc Gingras13 patents · 86 citations
- 679Tafadzwa Motsi8 patents · 82 citations
- 775Alan Coles5 patents · 81 citations
- 871Mikko Likitalo5 patents · 81 citations
- 967Shunichi Seki14 patents · 81 citations
- 1063Katsuhito Gomi15 patents · 71 citations
- 1158Naotaka Higuchi23 patents · 50 citations
- 1254Yuki Oguchi11 patents · 38 citations
- 1350Nobumasa Abe9 patents · 24 citations
- 1446Kazuma Miyazawa8 patents · 16 citations
- 1542Dale Gary Kavalew4 patents · 13 citations
- 1638Shisei Goto6 patents · 23 citations
- 1733Theodora Retsina7 patents · 7 citations
- 1829Yoichi Miyasaka11 patents · 9 citations
- 1925Jiachuan Chen5 patents · 14 citations
- 2021Ruiming Wang5 patents · 14 citations
- 2117Xingxiang Ji6 patents · 14 citations
- 2213Zhongjian Tian6 patents · 14 citations
- 238Juha Tamper5 patents · 8 citations
- 244Takao Mikoshiba6 patents · 10 citations
- 251Thommy Lindblom11 patents · 11 citations
All-time canon
Career PatentIndex Score in D21B
- 199Marshall Medoff49 patents · 634 citations
- 296Ricky W. Davenport7 patents · 395 citations
- 392Jonas A. I. Lindahl11 patents · 347 citations
- 488Marc Sabourin15 patents · 252 citations
- 583Michael D. Meredith6 patents · 198 citations
- 679Vincent L. Magnotta5 patents · 148 citations
- 775Garry R. Kenny6 patents · 155 citations
- 871Billy D. Goforth4 patents · 300 citations
- 967Charles L. Goforth4 patents · 300 citations
- 1063Joe G. Brooks4 patents · 300 citations
- 1158Bo Falk5 patents · 196 citations
- 1254Toshiaki Yamagami25 patents · 171 citations
- 1350Larry D. Markham6 patents · 156 citations
- 1446Rolf B. Reinhall7 patents · 157 citations
- 1542Thomas Craig Masterman19 patents · 89 citations
- 1638Jean-Pierre Lamort9 patents · 166 citations
- 1733Daniel Gantenbein6 patents · 101 citations
- 1829Joachim Schoelkopf6 patents · 101 citations
- 1925Michel Schenker6 patents · 101 citations
- 2021Mark W. Bowns5 patents · 167 citations
- 2117Borje Fredriksson6 patents · 188 citations
- 2213Joseph B. Bielagus19 patents · 311 citations
- 238Lothar Pfalzer9 patents · 173 citations
- 244Wolfgang Siewert7 patents · 150 citations
- 251Joseph W. Anderson6 patents · 167 citations
Rising· last 2 yrs
The top-scoring D21B patents made public in the last 2 years
- 199US11859145B1✦ AIEconomical methods for performing oxidative catalytic pretreatment of plant biomass using 1 cites · 202467% earned
- 296US12241202B2✦ AIProcess of transforming waste material into useful material0 cites · 20240% earned
- 391US12428763B2✦ AIMethod of producing inorganic fiber mat and inorganic fiber mat0 cites · 20240% earned
- 487US11851816B2Supported toothed plates in a disperser including bridge between teeth with cross-sectiona0 cites · 20240% earned
- 583US12209339B2Method of producing inorganic fiber mat and inorganic fiber mat0 cites · 20240% earned
- 678US12276045B2Hemp separation methods and apparatus0 cites · 20240% earned
- 774US12385184B2Method and system for continuously treating biomass material0 cites · 20240% earned
- 870US12514961B2Hyaluronate nonwoven fabric and manufacturing method therefor0 cites · 20240% earned
- 965US12163282B2Powder-assembled composite micro-nano fiber and preparation method thereof0 cites · 20240% earned
- 1061US12416109B2Dispersion device and accumulation device0 cites · 20240% earned
- 1157US12404633B2Fibrous body processing apparatus0 cites · 20240% earned
- 1252US12508601B2Refining device0 cites · 20240% earned
- 1348US12553181B2Method for processing bark press water from sawmills and/or pulp mills0 cites · 20240% earned
- 1443US12571160B2Paper stock modification device0 cites · 20240% earned
- 1539US12571161B2Deflaking element for pulper0 cites · 20240% earned
- 1635US12553184B2Hemp paper packaging material for foodstuff0 cites · 20240% earned
- 1730US12123142B2Preparation method of tea residue fiber raw materials and application thereof0 cites · 20240% earned
- 1826US12281443B2Preparation method and recyclingmethod for degradable and recyclable paper plastics with w0 cites · 20240% earned
- 1922US12577732B2Method of making fire retardant materials and related products0 cites · 20240% earned
- 2017US12071725B2Juncao pulp for spinning and preparation method and use thereof0 cites · 20240% earned
- 2113US12565735B2Methods for producing pulp and paper products from plants having bast and hurd fibers0 cites · 20240% earned
- 229US12601112B2Material storage apparatus, method of controlling material storage apparatus, and sheet ma0 cites · 2024
- 234US12606938B2Hemp separation apparatus0 cites · 2025
- 241US12606944B2Inorganic fiber mat0 cites · 2025
Active· last 5 yrs
The top-scoring D21B patents of the last 5 years
- 199US11834784B2✦ AIMethod for preparing unbleached biomechanical pulp and fully utilizing by-products by trea6 cites · 202285% earned
- 296US11624154B2✦ AIMethod for preparing unbleached biomechanical pulp from straw6 cites · 202185% earned
- 392US11193238B2✦ AISheet manufacturing apparatus and control method for sheet manufacturing apparatus5 cites · 202184% earned
- 488US11885069B2Processes, methods, and systems for chemo-mechanical cellular explosion and solid and liqu2 cites · 202361% earned
- 583US11174594B2Sheet manufacturing apparatus4 cites · 202182% earned
- 679US12157973B2Apparatus and method for processing a suspension comprising organic material and liquid2 cites · 202376% earned
- 775US11313078B2Sheet manufacturing apparatus and control method for sheet manufacturing apparatus3 cites · 202180% earned
- 871US12258712B2Sheet manufacturing system1 cites · 202367% earned
- 967US11485988B2Method for cooling and detoxifying biomass2 cites · 202276% earned
- 1063US11674264B2System for treatment of a biomass material and a method for connecting a valve to a transp2 cites · 202176% earned
- 1158US11831017B2Redox flow battery electrolytes2 cites · 202176% earned
- 1254US11859145B1Economical methods for performing oxidative catalytic pretreatment of plant biomass using 1 cites · 202467% earned
- 1350US11319668B2Sheet manufacturing apparatus2 cites · 202176% earned
- 1446US11732411B2Paper filler composition1 cites · 202239% earned
- 1542US11846067B2Modified sulfuric acid and uses thereof1 cites · 202156% earned
- 1638US11591448B2Physical reutilization of siliconized sheets1 cites · 202167% earned
- 1733US11891722B2Screw feeder and fiber structure manufacturing apparatus1 cites · 202167% earned
- 1829US11566373B2Fiber processing system and fiber processing method1 cites · 202167% earned
- 1925US12215463B2Process for producing paper or board and a product thereof1 cites · 202267% earned
- 2021US11492752B2Method and device for treating biomass1 cites · 202167% earned
- 2117US11338471B2Sheet manufacturing apparatus1 cites · 202167% earned
- 2213US11834523B2Nanolignocellulose compositions and processes to produce these compositions0 cites · 20210% earned
- 238US11834787B2Process for producing strong and soft tissue and towel products0 cites · 20210% earned
- 244US11931781B2Method and system for treating municipal solid waste0 cites · 20230% earned
- 251US11691903B2Anaerobic digestion system0 cites · 20220% earned
All-time canon
The defining D21B patents of the whole record
- 199US4374702A✦ AIMicrofibrillated cellulose366 cites · 198394% earned
- 296US4461648A✦ AIMethod for increasing the accessibility of cellulose in lignocellulosic materials, particu315 cites · 198494% earned
- 392US5501768A✦ AIMethod of treating papermaking fibers for making tissue242 cites · 199694% earned
- 488US5593625ABiocomposite material and method of making225 cites · 199791% earned
- 583US5348620AMethod of treating papermaking fibers for making tissue201 cites · 199494% earned
- 679US7932065B2Processing biomass197 cites · 201080% earned
- 775US6045070AMaterials size reduction systems and process177 cites · 200094% earned
- 871US5087400AProcess for making a product serving as a cultivation support133 cites · 199293% earned
- 967US4974781AMethod and apparatus for preparing paper-containing and plastic-containing waste materials132 cites · 199093% earned
- 1063US6506282B2Steam explosion treatment with addition of chemicals126 cites · 200193% earned
- 1158US4483743AMicrofibrillated cellulose125 cites · 198493% earned
- 1254US4599138AProcess for pretreating particulate lignocellulosic material to remove heavy metals125 cites · 198693% earned
- 1350US6202946B1Method and apparatus of defibrating a fibre-containing material115 cites · 200193% earned
- 1446US5195684AScreenless disk mill114 cites · 199393% earned
- 1542USH1672HTissue products made from low-coarseness fibers108 cites · 199793% earned
- 1638US4861165AMethod of and means for hydrodynamic mixing100 cites · 198993% earned
- 1733US7754002B2Solubility of cellulose in ionic liquids with addition of amino bases100 cites · 200893% earned
- 1829US5277758AMethod for recycling plastic coated paper product waste and polymeric film97 cites · 199489% earned
- 1925US5292075ADisposable diaper recycling process97 cites · 199493% earned
- 2021US4440635AProcess and apparatus for the recovery of cellulose fibers from paper-plastic mixtures94 cites · 198493% earned
- 2117US4141509ABale loader for fluff generator91 cites · 197993% earned
- 2213US4088528AMethod and apparatus for grinding chips into paper pulp90 cites · 197893% earned
- 238US4966650AMethod for fractionation of lignins from steam exploded lignocellulosics to provide fracti89 cites · 199093% earned
- 244US5084135ARecycling plastic coated paper product waste88 cites · 199293% earned
- 251US5635123ABiocomposite material and method of making86 cites · 199789% earned
Rising· last 2 yrs
Assignees whose newest D21B patents became public in the last 2 years — the current frontier
- 199ANDRITZ INC24 patents · 245 citations
- 294SEIKO EPSON CORP131 patents · 272 citations
- 388VALMET OY36 patents · 80 citations
- 482BOULDIN CORP3 patents · 13 citations
- 576UNIV MICHIGAN STATE3 patents · 9 citations
- 671IBIDEN CO LTD2 patents · 0 citations
- 765PIRES TOM2 patents · 0 citations
- 859TAIZEN CO LTD3 patents · 0 citations
- 953KADANT BLACK CLAWSON LLC2 patents · 0 citations
- 1047CLEANFIBER INC1 patents · 0 citations
- 1141FIBER TECH CO LTD1 patents · 0 citations
- 1235GOLDCUP 33965 AB UNC HEJMAS AGRIFIBRE TECH AB1 patents · 0 citations
- 1329INST OF CHEMICAL INDUSTRY OF FOREST PRODUCTS CHINESE ACADEMY OF FORESTRY1 patents · 0 citations
- 1424SOEDRA SKOGSAEGARNA EKONOMISK FOERENING1 patents · 0 citations
- 1518WRIGLEY W M JUN CO1 patents · 0 citations
- 1612XINXIANG CHEMICAL FIBRE CO LTD1 patents · 0 citations
- 176ZENCE OBJECT TECH SHENZHEN CO LTD1 patents · 0 citations
- 181ZHEJIANG A & F UNIV1 patents · 0 citations
Active· last 5 yrs
Sustained D21B output across the last 5 years
- 199ANDRITZ INC24 patents · 245 citations
- 296SEIKO EPSON CORP131 patents · 272 citations
- 392FIBERLEAN TECH LTD15 patents · 80 citations
- 488PROCTER & GAMBLE10 patents · 81 citations
- 583VALMET OY36 patents · 80 citations
- 679UPM KYMMENE CORP13 patents · 46 citations
- 775UNICHARM CORP13 patents · 20 citations
- 871JUJO PAPER CO LTD6 patents · 26 citations
- 967UNIV QILU TECHNOLOGY6 patents · 14 citations
- 1063BOULDIN CORP3 patents · 13 citations
- 1158UNIV MICHIGAN STATE3 patents · 9 citations
- 1254WESTROCK MWV LLC3 patents · 5 citations
- 1350GLOBAL ORGANICS ENERGY3 patents · 5 citations
- 1446IFG TECH LLC2 patents · 4 citations
- 1542ASSADI ABDOLREZA2 patents · 6 citations
- 1638VOITH PATENT GMBH4 patents · 2 citations
- 1733EVRNU SPC2 patents · 4 citations
- 1829GPCP IP HOLDINGS LLC4 patents · 1 citations
- 1925COOEPERATIE KONINKLIJKE COSUN U A2 patents · 3 citations
- 2021KEMIRA OYJ5 patents · 1 citations
- 2117GRANBIO INTELLECTUAL PROPERTY HOLDINGS LLC3 patents · 0 citations
- 2213PAUWELS DAVID2 patents · 1 citations
- 238YI CHUN GREEN TECH CO LTD3 patents · 0 citations
- 244SIXRING INC2 patents · 1 citations
- 251CELLWOOD MACHINERY1 patents · 2 citations
All-time canon
All-time PatentIndex Score in D21B
- 199KIMBERLY CLARK CO23 patents · 1,182 citations
- 296XYLECO INC41 patents · 452 citations
- 392MEDOFF MARSHALL10 patents · 182 citations
- 488WEYERHAEUSER CO28 patents · 675 citations
- 583MO OCH DOMSJOE AB15 patents · 452 citations
- 679BLACK CLAWSON CO18 patents · 524 citations
- 775KAMYR INC11 patents · 280 citations
- 871VOITH GMBH J M43 patents · 626 citations
- 967BELOIT CORP25 patents · 483 citations
- 1063BELOIT TECHNOLOGIES INC30 patents · 532 citations
- 1158ANDRITZ INC24 patents · 245 citations
- 1254JAMES RIVER CORP5 patents · 193 citations
- 1350ESCHER WYSS GMBH21 patents · 382 citations
- 1446ADVANCED ENVIRONMENTAL RECYCLI4 patents · 300 citations
- 1542FELDMUEHLE AG5 patents · 160 citations
- 1638SUNDS DEFIBRATOR13 patents · 199 citations
- 1733INT PAPER CO12 patents · 185 citations
- 1829UNIV MINNESOTA7 patents · 103 citations
- 1925LAMORT E & M14 patents · 202 citations
- 2021SEIKO EPSON CORP131 patents · 272 citations
- 2117WESTVACO CORP12 patents · 125 citations
- 2213MARCAL PAPER MILLS INC7 patents · 122 citations
- 238FIBERLEAN TECH LTD15 patents · 80 citations
- 244JOA CURT G INC4 patents · 230 citations
- 251VOITH SULZER PAPIERTECH PATENT11 patents · 99 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth