Topic leaderboard
Paper-making machines & methods
Ranked by the PatentIndex Score — a 1–99 percentile within D21F · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest D21F patents became public in the last 2 years — the current frontier
- 199Paul Dennis Trokhan126 patents · 17,197 citations
- 296James E. Sealey, Ii58 patents · 616 citations
- 392Byrd Tyler Miller, Iv49 patents · 532 citations
- 488Ward William Ostendorf19 patents · 843 citations
- 583Scott Quigley59 patents · 1,864 citations
- 679John Allen Manifold39 patents · 515 citations
- 775John Leslie Brent, Jr.34 patents · 356 citations
- 871James Michael Singer28 patents · 352 citations
- 967Angela Marie Leimbach19 patents · 172 citations
- 1063Katie Kristine Glass9 patents · 117 citations
- 1158Gustav Andre Mellin9 patents · 110 citations
- 1254Taras Z. Andrukh18 patents · 115 citations
- 1350Andrew Forester19 patents · 118 citations
- 1446James Faufau16 patents · 112 citations
- 1542Ikuo Ueda25 patents · 229 citations
- 1638Phillip Macdonald8 patents · 64 citations
- 1733Douglas Jay Barkey21 patents · 127 citations
- 1829Shigenobu Fujisawa8 patents · 100 citations
- 1925Justin S. Pence12 patents · 48 citations
- 2021Jeffrey Glen Sheehan18 patents · 43 citations
- 2117Johann Boeck17 patents · 74 citations
- 2213Anthony Paul Bankemper10 patents · 22 citations
- 238Joseph K. Baker6 patents · 28 citations
- 244Robert Eberhardt20 patents · 106 citations
- 251Charles W. Colman6 patents · 12 citations
Active· last 5 yrs
Sustained D21F output across the last 5 years
- 199Paul Dennis Trokhan126 patents · 17,197 citations
- 296Mark Alan Burazin67 patents · 6,608 citations
- 392Thomas Hensler8 patents · 1,899 citations
- 488Osman Polat33 patents · 3,454 citations
- 583Frank D. Harper54 patents · 3,259 citations
- 679Hung Liang Chou33 patents · 1,338 citations
- 775Henry J. Lee30 patents · 1,191 citations
- 871Hubert Walkenhaus23 patents · 877 citations
- 967Michael Gomer Stelljes27 patents · 996 citations
- 1063Joseph H. Miller23 patents · 799 citations
- 1158James E. Sealey, Ii58 patents · 616 citations
- 1254Byrd Tyler Miller, Iv49 patents · 532 citations
- 1350Karthik Ramaratnam15 patents · 409 citations
- 1446Shane Ervin Hayes14 patents · 404 citations
- 1542Ward William Ostendorf19 patents · 843 citations
- 1638David William Cabell7 patents · 648 citations
- 1733Peter Allen19 patents · 836 citations
- 1829Scott Quigley59 patents · 1,864 citations
- 1925Kevin Ward25 patents · 908 citations
- 2021Dean J. Baumgartner17 patents · 497 citations
- 2117Daniel H. Sze40 patents · 587 citations
- 2213Anders Linden14 patents · 574 citations
- 238Kevin Joseph Vogt15 patents · 423 citations
- 244Kay Rokman15 patents · 526 citations
- 251David A. Beck29 patents · 715 citations
All-time canon
Career PatentIndex Score in D21F
- 199Paul Dennis Trokhan126 patents · 17,197 citations
- 296Mark Alan Burazin67 patents · 6,608 citations
- 392Theodore Edwin Farrington, Jr.14 patents · 3,920 citations
- 488Michael Alan Hermans72 patents · 8,371 citations
- 583Fung-Jou Chen33 patents · 6,165 citations
- 679Michael John Rekoske14 patents · 2,788 citations
- 775Robert J. Makolin11 patents · 2,463 citations
- 871Kristin Ann Goerg9 patents · 2,097 citations
- 967Julia Smith Bahlman8 patents · 1,896 citations
- 1063Dean Van Phan35 patents · 5,359 citations
- 1158Glenn David Boutilier19 patents · 3,168 citations
- 1254Greg A. Wendt31 patents · 3,449 citations
- 1350Steven L. Edwards54 patents · 3,528 citations
- 1446Kai-Feng Chiu13 patents · 2,970 citations
- 1542Thomas Hensler8 patents · 1,899 citations
- 1638Stephen J. Mccullough43 patents · 2,842 citations
- 1733Guy H. Super39 patents · 2,414 citations
- 1829Osman Polat33 patents · 3,454 citations
- 1925Jeffrey Dean Lindsay29 patents · 4,145 citations
- 2021Frank D. Harper54 patents · 3,259 citations
- 2117Dean Van Phan13 patents · 1,963 citations
- 2213Richard Joseph Kamps13 patents · 2,403 citations
- 238Bernhardt E. Kressner11 patents · 1,784 citations
- 244Anthony O. Awofeso33 patents · 2,127 citations
- 251Thomas N. Kershaw27 patents · 1,668 citations
Rising· last 2 yrs
The top-scoring D21F patents made public in the last 2 years
- 199US11932991B2✦ AISystems and methods for monitoring and controlling industrial processes6 cites · 202485% earned
- 296US12350130B2✦ AIHeadbox for manufacturing a substrate2 cites · 202467% earned
- 392US11905661B1✦ AIPaper pulp pressure screen2 cites · 202461% earned
- 488US12343956B2Drum lagging material1 cites · 202550% earned
- 583US12344967B2Industrial fabric1 cites · 202456% earned
- 679US12297599B2Process and system for reorienting fibers in a foam forming process2 cites · 202467% earned
- 775US12246340B1Machine and system for coating molded fiber products1 cites · 202567% earned
- 871US12332612B2Method and system for monitoring a process3 cites · 202480% earned
- 967US12110638B1Corona-resistant N-grade insulation paper for variable frequency motor and preparation met1 cites · 202467% earned
- 1063US12097654B1Deflecting member for making fibrous structures1 cites · 202446% earned
- 1158US12312716B2Industrial fabric1 cites · 202456% earned
- 1254US12276068B2Fabric tape1 cites · 202467% earned
- 1350US12168850B2Fabric tape1 cites · 202467% earned
- 1446US12366038B2Sanitary tissue product with a shaped line of weakness0 cites · 20240% earned
- 1542US12460351B2Belt or fabric including polymeric layer for papermaking machine0 cites · 20240% earned
- 1638US12403649B2Methods of making a deflection member0 cites · 20240% earned
- 1733US12503815B2Seamless unitary deflection member for making fibrous structures having increased surface 0 cites · 20240% earned
- 1829US12516474B2Discrete cell arrangements0 cites · 20240% earned
- 1925US12270154B2Method and apparatus for producing a zoned substrate0 cites · 20240% earned
- 2021US12291805B2Pulp fibrous accumulated sheet and method for producing pulp fibrous accumulated sheet0 cites · 20240% earned
- 2117US12421666B2Lotioned fibrous structures and methods for making same0 cites · 20240% earned
- 2213US12497736B2Fibrous structures and methods for making same0 cites · 20240% earned
- 238US12421668B2Fiber-based microwavable bowls with selective spray coating0 cites · 20240% earned
- 244US11939722B1Moving fluid in a rotating cylinder0 cites · 20240% earned
- 251US12480257B23D printed tooling for pulp molding process0 cites · 20250% earned
Active· last 5 yrs
The top-scoring D21F patents of the last 5 years
- 199US11553636B1✦ AISpacing-aware plant detection model for agricultural task control17 cites · 202384% earned
- 296US11181872B1✦ AISystems and processes for optimizing operation of industrial equipment21 cites · 202182% earned
- 392US11773539B2✦ AIHigh strength and low stiffness hesperaloe tissue11 cites · 202372% earned
- 488US12270153B2Starch-cellulose composite material9 cites · 202281% earned
- 583US11668051B2Sanitary tissue product with a shaped line of weakness11 cites · 202168% earned
- 679US11932991B2Systems and methods for monitoring and controlling industrial processes6 cites · 202485% earned
- 775US11634870B2Layered tissue comprising non-wood fibers9 cites · 202181% earned
- 871US12180654B2Woven base fabric with laser energy absorbent MD and CD yarns and tissue product made usin10 cites · 202181% earned
- 967US11732420B2Fibrous structures6 cites · 202271% earned
- 1063US11427961B2Unitary deflection member for making fibrous structures having increased surface area and 8 cites · 202169% earned
- 1158US11486093B2Seamless unitary deflection member for making fibrous structures having increased surface 8 cites · 202169% earned
- 1254US11162226B2Paper-specific moisture control in a traveling paper web7 cites · 202170% earned
- 1350US11932988B2Foam-based manufacturing system and process6 cites · 202385% earned
- 1446US11866884B2Method and apparatus for producing a zoned and/or layered substrate4 cites · 202367% earned
- 1542US11920299B2Formation detection system and a process of controlling4 cites · 202175% earned
- 1638US11963851B2Headbox for manufacturing a substrate4 cites · 202375% earned
- 1733US11905661B1Paper pulp pressure screen2 cites · 202461% earned
- 1829US11124920B2Tissue with nanofibrillar cellulose surface layer4 cites · 202175% earned
- 1925US11708668B2Multi-ply fibrous structures3 cites · 202272% earned
- 2021US11193238B2Sheet manufacturing apparatus and control method for sheet manufacturing apparatus5 cites · 202184% earned
- 2117US12006630B2Belt or fabric including polymeric layer for papermaking machine2 cites · 202349% earned
- 2213US12359376B2Creped fibrous structures2 cites · 202351% earned
- 238US11858238B2Process for manufacturing multi-layer substrates comprising sandwich layers and polyethyle2 cites · 202255% earned
- 244US11732413B2Deflecting member for making fibrous structures2 cites · 202258% earned
- 251US12343956B2Drum lagging material1 cites · 202550% earned
All-time canon
The defining D21F patents of the whole record
- 199US7067038B2✦ AIProcess for making unitary fibrous structure comprising randomly distributed cellulosic fi1,413 cites · 200493% earned
- 296US7354502B2✦ AIMethod for making a fibrous structure comprising cellulosic and synthetic fibers1,394 cites · 200489% earned
- 392US4637859A✦ AITissue paper975 cites · 198795% earned
- 488US3994771AProcess for forming a layered paper web having improved bulk, tactile impression and absor917 cites · 197695% earned
- 583US4529480ATissue paper908 cites · 198595% earned
- 679US4528239ADeflection member740 cites · 198595% earned
- 775US4191609ASoft absorbent imprinted paper sheet and method of manufacture thereof707 cites · 198095% earned
- 871US4514345AMethod of making a foraminous member679 cites · 198595% earned
- 967US5607551ASoft tissue648 cites · 199785% earned
- 1063US5672248AMethod of making soft tissue products612 cites · 199795% earned
- 1158US4300981ALayered paper having a soft and smooth velutinous surface, and method of making such paper588 cites · 198195% earned
- 1254US3974025AAbsorbent paper having imprinted thereon a semi-twill, fabric knuckle pattern prior to fin576 cites · 197695% earned
- 1350US4440597AWet-microcontracted paper and concomitant process563 cites · 198495% earned
- 1446US5334289APapermaking belt and method of making the same using differential light transmission techn540 cites · 199488% earned
- 1542US5429686AApparatus for making soft tissue products538 cites · 199595% earned
- 1638US5328565ATissue paper having large scale, aesthetically discernible patterns452 cites · 199492% earned
- 1733US5656132ASoft tissue423 cites · 199785% earned
- 1829US5990377ADual-zoned absorbent webs416 cites · 199995% earned
- 1925US5514523APapermaking belt and method of making the same using differential light transmission techn414 cites · 199687% earned
- 2021US5399412AUncreped throughdried towels and wipers having high strength and absorbency413 cites · 199592% earned
- 2117US4239065APapermachine clothing having a surface comprising a bilaterally staggered array of wicker-411 cites · 198095% earned
- 2213US6017417AMethod of making soft tissue products405 cites · 200092% earned
- 238US5628876APapermaking belt having semicontinuous pattern and paper made thereon394 cites · 199792% earned
- 244US4849054AHigh bulk, embossed fiber sheet material and apparatus and method of manufacturing the sam390 cites · 198995% earned
- 251US4102737AProcess and apparatus for forming a paper web having improved bulk and absorptive capacity384 cites · 197894% earned
Rising· last 2 yrs
Assignees whose newest D21F patents became public in the last 2 years — the current frontier
- 199PROCTER & GAMBLE295 patents · 27,867 citations
- 296KIMBERLY CLARK CO317 patents · 21,667 citations
- 392ALBANY INT CORP288 patents · 7,872 citations
- 488VOITH PATENT GMBH232 patents · 2,109 citations
- 583VALMET OY164 patents · 3,164 citations
- 679NIPPON FILCON KK62 patents · 1,137 citations
- 775STRUCTURED I LLC22 patents · 104 citations
- 871IBS OF AMERICA19 patents · 95 citations
- 967SEIKO EPSON CORP160 patents · 318 citations
- 1063STORA ENSO OYJ36 patents · 72 citations
- 1158STOWE WOODWARD LICENSCO LLC10 patents · 25 citations
- 1254KEMIRA OYJ8 patents · 8 citations
- 1350VALMET TECHNOLOGIES INC10 patents · 3 citations
- 1446IND VIDEO SOLUTIONS INC5 patents · 6 citations
- 1542FOOTPRINT INT LLC3 patents · 2 citations
- 1638PAPACKS SALES GmbH5 patents · 1 citations
- 1733JENNINGS JEFFREY LEIGH2 patents · 2 citations
- 1829MONDI AG2 patents · 1 citations
- 1925DAMICO III JOSEPH V2 patents · 0 citations
- 2021LEC KK2 patents · 0 citations
- 2117G13 INNOVATION IN PRODUCTION LTD2 patents · 0 citations
- 2213UNIV SICHUAN1 patents · 1 citations
- 238VOLTH PATENT GMBH1 patents · 1 citations
- 244UNIV ZHEJIANG SIENCE & TECHNOLOGY2 patents · 0 citations
- 251BULK NANO PROC LLC1 patents · 0 citations
Active· last 5 yrs
Sustained D21F output across the last 5 years
- 199PROCTER & GAMBLE295 patents · 27,867 citations
- 296KIMBERLY CLARK CO317 patents · 21,667 citations
- 392ALBANY INT CORP288 patents · 7,872 citations
- 488VOITH PATENT GMBH232 patents · 2,109 citations
- 583FIRST QUALITY TISSUE LLC33 patents · 468 citations
- 679HUYCK LICENSCO INC23 patents · 788 citations
- 775ASTENJOHNSON INC80 patents · 1,267 citations
- 871VALMET OY164 patents · 3,164 citations
- 967NIPPON FILCON KK62 patents · 1,137 citations
- 1063INT PAPER CO53 patents · 928 citations
- 1158STRUCTURED I LLC22 patents · 104 citations
- 1254YAMAUCHI CORP18 patents · 200 citations
- 1350GPCP IP HOLDINGS LLC60 patents · 220 citations
- 1446ICHIKAWA CO LTD78 patents · 505 citations
- 1542EASTMAN CHEM CO13 patents · 141 citations
- 1638IBS OF AMERICA19 patents · 95 citations
- 1733SEIKO EPSON CORP160 patents · 318 citations
- 1829ANDRITZ AG MASCHF37 patents · 184 citations
- 1925STORA ENSO OYJ36 patents · 72 citations
- 2021VALMET INC7 patents · 74 citations
- 2117SMART PLANET TECH INC5 patents · 24 citations
- 2213RUNTECH SYSTEMS OY7 patents · 70 citations
- 238ANDRITZ TECH & ASSET MAN GMBH6 patents · 37 citations
- 244MAINTECH CO LTD16 patents · 30 citations
- 251ESSITY HYGIENE & HEALTH AB6 patents · 30 citations
All-time canon
All-time PatentIndex Score in D21F
- 199PROCTER & GAMBLE295 patents · 27,867 citations
- 296KIMBERLY CLARK CO317 patents · 21,667 citations
- 392GEORGIA PACIFIC CONSUMER PROD58 patents · 3,398 citations
- 488JAMES RIVER CORP33 patents · 2,807 citations
- 583FORT JAMES CORP57 patents · 2,623 citations
- 679ALBANY INT CORP288 patents · 7,872 citations
- 775JAMES RIVER NORWALK INC8 patents · 1,057 citations
- 871JWI LTD37 patents · 1,928 citations
- 967NORDISKAFILT AB12 patents · 992 citations
- 1063VOITH PATENT GMBH232 patents · 2,109 citations
- 1158CROWN ZELLERBACH CORP13 patents · 945 citations
- 1254WANGNER GMBH CO KG HERMANN23 patents · 1,176 citations
- 1350WANGNER SYSTEMS CORP37 patents · 1,952 citations
- 1446FIRST QUALITY TISSUE LLC33 patents · 468 citations
- 1542HUYCK CORP31 patents · 1,546 citations
- 1638ASTEN INC29 patents · 1,145 citations
- 1733ASTEN GROUP68 patents · 2,378 citations
- 1829GEORGIA PACIFIC CORP9 patents · 544 citations
- 1925BELOIT CORP181 patents · 4,655 citations
- 2021OBERDORFER FA F13 patents · 741 citations
- 2117VOITH PAPER PATENT GMBH106 patents · 1,362 citations
- 2213WEYERHAEUSER CO13 patents · 778 citations
- 238SCAPA INC14 patents · 780 citations
- 244VALMET PAPER MACHINERY INC127 patents · 2,864 citations
- 251WEAVEXX CORP42 patents · 1,532 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth