Topic leaderboard
Calenders & accessories for paper-making
Ranked by the PatentIndex Score — a 1–99 percentile within D21G · public-visibility date · generated 2026-07-19
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest D21G patents became public in the last 2 years — the current frontier
- 199Andrew Forester5 patents · 10 citations
- 296James Faufau5 patents · 10 citations
- 392Jake Neal5 patents · 10 citations
- 488Naoko Omagari6 patents · 5 citations
- 583Alexandre Claudon4 patents · 6 citations
- 679Leszek Frackowiak5 patents · 6 citations
- 775Slawek Frackowiak5 patents · 6 citations
- 871Chris Blair2 patents · 4 citations
- 967Paul Wratschko2 patents · 4 citations
- 1063Rene Wolters3 patents · 0 citations
- 1158Pierre-Yves Pfirter1 patents · 2 citations
- 1254Kensaku Matsuda2 patents · 1 citations
- 1350Jonathan Olszak2 patents · 0 citations
- 1446Koji Motohashi2 patents · 0 citations
- 1542Stephane Lecuyer2 patents · 0 citations
- 1638Alain Lascar1 patents · 0 citations
- 1733Christian Sauder1 patents · 0 citations
- 1829David Bouthillette1 patents · 0 citations
- 1925Fabrizio Bartolini1 patents · 0 citations
- 2021Hugues Grossmann1 patents · 0 citations
- 2117Jacob Speckman1 patents · 0 citations
- 2213Jun Sakurada1 patents · 0 citations
- 238Karen Hasebe1 patents · 0 citations
- 244Marco Capitani1 patents · 0 citations
- 251Nandkishor Kubal1 patents · 0 citations
Active· last 5 yrs
Sustained D21G output across the last 5 years
- 199Edwin Michael Gyde Heaven8 patents · 128 citations
- 296David John Paulson6 patents · 67 citations
- 392Felicia Marie Sauer6 patents · 67 citations
- 488Kayla Elizabeth Rouse6 patents · 67 citations
- 583Richard Louis Underhill6 patents · 67 citations
- 679Antti Heikkinen16 patents · 94 citations
- 775Markku Mäntylä12 patents · 80 citations
- 871Angela Marie Leimbach9 patents · 33 citations
- 967Douglas Jay Barkey9 patents · 33 citations
- 1063James Allen Cain9 patents · 33 citations
- 1158James Kenneth Comer9 patents · 33 citations
- 1254Kun Piao9 patents · 33 citations
- 1350Ryan Dominic Maladen9 patents · 33 citations
- 1446Stephen John Delvecchio9 patents · 33 citations
- 1542Allen Brauns12 patents · 80 citations
- 1638Carsten Sohl10 patents · 69 citations
- 1733Kerry D. Figiel12 patents · 39 citations
- 1829Gary S. Furman7 patents · 43 citations
- 1925William A. Von Drasek6 patents · 32 citations
- 2021Shunichi Seki6 patents · 25 citations
- 2117Yuki Oguchi9 patents · 21 citations
- 2213Mika Valkonen4 patents · 35 citations
- 238David Leeman7 patents · 16 citations
- 244Katsuhito Gomi4 patents · 13 citations
- 251Atiya Jordan-Brown3 patents · 10 citations
All-time canon
Career PatentIndex Score in D21G
- 199Robert J. Marinack18 patents · 760 citations
- 296Anthony O. Awofeso12 patents · 504 citations
- 392Frank D. Harper12 patents · 504 citations
- 488Thomas N. Kershaw11 patents · 460 citations
- 583Bruno Marcoccia12 patents · 296 citations
- 679J. Robert Prough12 patents · 296 citations
- 775Richard O. Laakso12 patents · 296 citations
- 871R. Fred Chasse11 patents · 274 citations
- 967Jan T. Richardsen8 patents · 179 citations
- 1063Joseph R. Phillips8 patents · 179 citations
- 1158James Leo Baggot6 patents · 244 citations
- 1254Hung-Tzaw Hu12 patents · 414 citations
- 1350John D. Goss13 patents · 335 citations
- 1446Lee M. Chase12 patents · 313 citations
- 1542Gregory L. Wedel32 patents · 755 citations
- 1638Ronald F. Goodnow15 patents · 415 citations
- 1733Josef Pav21 patents · 484 citations
- 1829Claud Hagart-Alexander8 patents · 224 citations
- 1925John Preston6 patents · 182 citations
- 2021Juha Kaihovirta10 patents · 305 citations
- 2117Hans-Peter Sollinger8 patents · 249 citations
- 2213Imants Reba5 patents · 223 citations
- 238Daniel H. Sze11 patents · 137 citations
- 244Mathew G. Boissevain6 patents · 199 citations
- 251Richard Rauf8 patents · 238 citations
Rising· last 2 yrs
The top-scoring D21G patents made public in the last 2 years
- 199US11932991B2✦ AISystems and methods for monitoring and controlling industrial processes6 cites · 202485% earned
- 296US12128647B2✦ AIBlade and creping arrangement2 cites · 202476% earned
- 391US12409482B2✦ AITorque support for absorbing drive torques and roller arrangement with a torque support0 cites · 20250% earned
- 487US12473690B2Formation detection system and a process of controlling0 cites · 20240% earned
- 583US12416109B2Dispersion device and accumulation device0 cites · 20240% earned
- 678US12130249B2Systems and methods for monitoring and controlling industrial processes0 cites · 20240% earned
- 774US12169400B2Systems and methods for monitoring and controlling industrial processes0 cites · 20240% earned
- 870US12198438B2Systems and methods for monitoring and controlling industrial processes0 cites · 20240% earned
- 965US12379717B2Systems and methods for monitoring and controlling industrial processes0 cites · 20240% earned
- 1061US12404633B2Fibrous body processing apparatus0 cites · 20240% earned
- 1157US12421662B2Yankee drying cylinder and a tissue paper making machine0 cites · 20240% earned
- 1252US12460349B2Adaptive-learning, auto-labeling method and system for predicting and diagnosing web break0 cites · 20240% earned
- 1348US12486135B2System and methods for the calculation of additional local stretching in a web0 cites · 20250% earned
- 1443US12540434B2Support body and paper machine comprising such a support body0 cites · 20240% earned
- 1539US12435470B2Method for optimizing the refining energy during an operation of refining of a fiber compo0 cites · 20250% earned
- 1635US12442136B2Stud for a doctor blade holder in a fiber web machine and doctor blade assembly for a fibe0 cites · 20240% earned
- 1730US12312744B2Bracket for a pivot rod in a doctor arrangement and doctor arrangement for a fiber web mac0 cites · 20240% earned
- 1826US12565724B2Calender and method for treating web-like materials0 cites · 20240% earned
- 1922US12571473B2Seal assembly and roller0 cites · 20250% earned
- 2017US12558711B2Apparatus and method for automated inspection of molded pulp and other batch-produced prod0 cites · 20240% earned
- 2113US12448733B2Methods, devices, and systems for seal strip zone module strip position determination0 cites · 20250% earned
- 229US12420542B2Doctor0 cites · 20240% earned
- 234US12601116B2Method and device for producing or treating a web of fibrous material0 cites · 2024
- 241US12601117B2Method of controlling sheet manufacturing apparatus0 cites · 2025
Active· last 5 yrs
The top-scoring D21G 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
- 488US11932991B2Systems and methods for monitoring and controlling industrial processes6 cites · 202485% earned
- 583US11459201B2High speed paper web turn-up system with a prepared length paper band coil7 cites · 202175% earned
- 679US11920299B2Formation detection system and a process of controlling4 cites · 202175% earned
- 775US11193238B2Sheet manufacturing apparatus and control method for sheet manufacturing apparatus5 cites · 202184% earned
- 871US12359376B2Creped fibrous structures2 cites · 202351% earned
- 967US11834790B2Systems and methods for providing doctor blade holders with vibration mitigation2 cites · 202267% earned
- 1063US11441266B2Disruptor assembly adjustment system and method3 cites · 202172% earned
- 1158US12128647B2Blade and creping arrangement2 cites · 202476% earned
- 1254US11629461B2Method and apparatus for measuring and removing rotational variability from a nip pressure2 cites · 202155% earned
- 1350US11313078B2Sheet manufacturing apparatus and control method for sheet manufacturing apparatus3 cites · 202180% earned
- 1446US12258712B2Sheet manufacturing system1 cites · 202367% earned
- 1542US11313080B2Monitoring system and method for wet end of a paper or board machine2 cites · 202176% earned
- 1638US11831017B2Redox flow battery electrolytes2 cites · 202176% earned
- 1733US12152345B2Method for the production of a coated paper, paperboard or film and a coated paper, paperb2 cites · 202176% earned
- 1829US11828736B2Measurement of elastic modulus of moving web2 cites · 202176% earned
- 1925US12111644B2Creping process performance tracking and control1 cites · 202256% earned
- 2021US10941522B1Real time regulation of Yankee dryer coating based on predicted natural coating transfer2 cites · 202167% earned
- 2117US11965291B2Packing paper1 cites · 202267% earned
- 2213US11814793B2Elongated component for a manufacturing machine of a fibrous cellulosic web, its use and m1 cites · 202267% earned
- 238US11686044B2Fibrous body accumulating device and estimation method1 cites · 202267% earned
- 244US11566373B2Fiber processing system and fiber processing method1 cites · 202167% earned
- 251US11732414B2Seal strip wear and temperature monitoring systems and assemblies therefor1 cites · 202267% earned
All-time canon
The defining D21G patents of the whole record
- 199US5562027A✦ AIDynamic nip pressure and temperature sensing system178 cites · 199694% earned
- 296US5830321A✦ AIMethod for improved rush transfer to produce high bulk without macrofolds157 cites · 199894% earned
- 392US6432267B1✦ AIWet crepe, impingement-air dry process for making absorbent sheet154 cites · 200294% earned
- 488US5865955AMethod and device for enhancing the run of a paper web in a paper machine135 cites · 199993% earned
- 583US5715158AMethod and apparatus for controlling an extended process131 cites · 199893% earned
- 679US6772036B2Control system using process model127 cites · 200393% earned
- 775US5048353AMethod and apparatus for roll profile measurement121 cites · 199193% earned
- 871US5377428ATemperature sensing dryer profile control120 cites · 199593% earned
- 967US4879471ARapid-scanning infrared sensor111 cites · 198993% earned
- 1063US7850823B2Method of controlling adhesive build-up on a yankee dryer111 cites · 200793% earned
- 1158US4642839ADevice for the reciprocating linear drive of a part108 cites · 198793% earned
- 1254US4919756AMethod of and apparatus for compensatingly adjusting doctor blade105 cites · 199093% earned
- 1350US4233011ARolls of controllable flexure, especially for machines for the production and processing o102 cites · 198093% earned
- 1446US6585858B1Apparatus for calendering a sheet material web carried by a fabric100 cites · 200387% earned
- 1542US5690788ABiaxially undulatory tissue and creping process using undulatory blade98 cites · 199781% earned
- 1638US5904812ACalendered and embossed tissue products98 cites · 199989% earned
- 1733US8454800B2Industrial fabric for producing tissue and towel products, and method of making thereof97 cites · 201085% earned
- 1829US6807510B1Model predictive controller for coordinated cross direction and machine direction control97 cites · 200493% earned
- 1925US5783044ABelt cleaning device for papermaking machines96 cites · 199893% earned
- 2021US4549933ADoctor blade with non-homogeneous stiffness properties92 cites · 198593% earned
- 2117US6319362B1Method and equipment for controlling properties of paper88 cites · 200193% earned
- 2213US6077390ACalendered and embossed tissue products87 cites · 200089% earned
- 238US5771174ADistributed intelligence actuator controller with peer-to-peer actuator communication86 cites · 199893% earned
- 244US6179964B1Method and control device for paper web profile control with plurality of sensors85 cites · 200193% earned
- 251US5324248AComposite machine roll and method of manufacture84 cites · 199493% earned
Rising· last 2 yrs
Assignees whose newest D21G patents became public in the last 2 years — the current frontier
- 199VALMET OY51 patents · 949 citations
- 293VOITH PATENT GMBH39 patents · 155 citations
- 386SEIKO EPSON CORP56 patents · 119 citations
- 479STOWE WOODWARD LICENSCO LLC8 patents · 22 citations
- 571IBS OF AMERICA7 patents · 10 citations
- 664ANDRITZ KUESTERS GMBH6 patents · 4 citations
- 757VALMET TECHNOLOGIES OY11 patents · 4 citations
- 850IND VIDEO SOLUTIONS INC5 patents · 6 citations
- 943VALMET TECHNOLOGIES INC6 patents · 2 citations
- 1036MATTHEWS INT CORP2 patents · 0 citations
- 1129FUTURA SPA3 patents · 0 citations
- 1221ABB SCHWEIZ AG2 patents · 0 citations
- 1314KADANT LAMORT1 patents · 0 citations
- 147MOTUS LLC1 patents · 0 citations
- 151TKM Meyer GmbH1 patents · 0 citations
Active· last 5 yrs
Sustained D21G output across the last 5 years
- 199KIMBERLY CLARK CO36 patents · 1,060 citations
- 296INT PAPER CO30 patents · 492 citations
- 392VALMET OY51 patents · 949 citations
- 488PROCTER & GAMBLE24 patents · 190 citations
- 583VOITH PATENT GMBH39 patents · 155 citations
- 679SEIKO EPSON CORP56 patents · 119 citations
- 775YOKOGAWA ELECTRIC CORP11 patents · 66 citations
- 871RUNTECH SYSTEMS OY6 patents · 70 citations
- 967STOWE WOODWARD LICENSCO LLC8 patents · 22 citations
- 1063KADANT INC8 patents · 14 citations
- 1158PROCEMEX OY LTD7 patents · 15 citations
- 1254ANDRITZ INC7 patents · 16 citations
- 1350IBS OF AMERICA7 patents · 10 citations
- 1446VALMET AUTOMATION OY8 patents · 10 citations
- 1542GEORGIA PACIFIC LLC3 patents · 21 citations
- 1638ANDRITZ AG MASCHF5 patents · 9 citations
- 1733SANDAR IND INC2 patents · 11 citations
- 1829STRUCTURED I LLC3 patents · 6 citations
- 1925ECOLAB USA INC3 patents · 6 citations
- 2021BARTELMUSS KLAUS5 patents · 6 citations
- 2117ANDRITZ KUESTERS GMBH6 patents · 4 citations
- 2213VALMET TECHNOLOGIES OY11 patents · 4 citations
- 238IND VIDEO SOLUTIONS INC5 patents · 6 citations
- 244BUCKMAN LABORATORIES INT INC3 patents · 4 citations
- 251IRCON DRYING SYSTEMS AB2 patents · 18 citations
All-time canon
All-time PatentIndex Score in D21G
- 199KIMBERLY CLARK CO36 patents · 1,060 citations
- 296JAMES RIVER CORP7 patents · 372 citations
- 392FORT JAMES CORP15 patents · 384 citations
- 488MEASUREX CORP25 patents · 1,037 citations
- 583VALMET CORP115 patents · 1,657 citations
- 679GEORGIA PACIFIC CONSUMER PROD6 patents · 268 citations
- 775BELOIT CORP48 patents · 1,150 citations
- 871VOITH GMBH J M56 patents · 977 citations
- 967INT PAPER CO30 patents · 492 citations
- 1063VOITH SULZER PAPIERMASCH GMBH54 patents · 697 citations
- 1158HONEYWELL MEASUREX CORP13 patents · 382 citations
- 1254VALMET PAPER MACHINERY INC51 patents · 901 citations
- 1350VALMET OY51 patents · 949 citations
- 1446AHLSTROM MACHINERY INC6 patents · 162 citations
- 1542METSO PAPER AUTOMATION OY8 patents · 300 citations
- 1638THERMO ELECTRON WEB SYST INC13 patents · 364 citations
- 1733METSO PAPER KARLSTAD AB20 patents · 318 citations
- 1829KLEINEWEFERS GMBH39 patents · 710 citations
- 1925CROWN ZELLERBACH CORP5 patents · 223 citations
- 2021WESTVACO CORP15 patents · 319 citations
- 2117BELOIT TECHNOLOGIES INC41 patents · 551 citations
- 2213ESCHER WYSS GMBH34 patents · 529 citations
- 238METSO PAPER INC184 patents · 1,123 citations
- 244VOITH SULZER PAPIERTECH PATENT63 patents · 641 citations
- 251ALBANY INT CORP11 patents · 244 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth