D21B 1/36

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Class  D21B : FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT


Subclass 1/36: Fibrous raw materials or their mechanical treatment (beaters D21D 1/00) by dividing raw materials into small particles, e.g. fibres (breaking-up or cutting wood or the like by dry methods B27L; disintegrating peat C10F 7/02; obtaining fibres mechanically for spinning from rags, peat, or the like D01B) by wet methods, by the use of steam Defibrating by other means Explosive disintegration by sudden pressure reduction

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12139853 Reactor dischargeApr 10, 19Nov 12, 24Valmet AB
12098505 System for treatment of a biomass materialMar 22, 19Sep 24, 24Valmet AB
11851818 Inline dilution of microfibrillated celluloseSep 07, 18Dec 26, 23BORREGAARD AS
11674264 System for treatment of a biomass material and a method for connecting a valve to a transporting pipeApr 09, 19Jun 13, 23Valmet AB
11549214 Processes, methods, and systems for chemo-mechanical cellular explosion and solid and liquid products made by the sameAug 11, 20Jan 10, 23IFG Technologies, LLC
11492752 Method and device for treating biomassMay 02, 18Nov 08, 22Valmet AB
11383189 Preparation method of cotton bast fiber and chitosan composite non-woven fabric for filtrationMar 28, 19Jul 12, 22JIANGNAN UNIVERSITY
11371186 Method and system for treating biomassDec 07, 17Jun 28, 22Valmet AB
11193177 Process for recovering higher sugar from biomassJun 25, 19Dec 07, 21Indian Oil Corporation Limited; Department of Biotechnology;
11155962 Steam saving deviceNov 30, 16Oct 26, 21CLARIANT INTERNATIONAL LTD
11118307 Refiner apparatus and a method for refining cellulosic materialDec 20, 19Sep 14, 21Daprox AB
11111604 Method for refining plant fibers by steam explosionDec 18, 18Sep 07, 21LA CHANVRIÈRE
10907303 Biomass, thermal pressure hydrolysis and anaerobic digestionDec 19, 16Feb 02, 21THERMO PRESSURE TECHNOLOGIES LIMITED
10589295 Apparatus and process for separating a solids/fluid mixtureFeb 10, 17Mar 17, 20Versalis S.p.A.
10316466 Pretreatment process of a ligno-cellulosic feedstockJan 28, 16Jun 11, 19VERSALIS S.P.A.
9856601 Method and apparatus for adding steam for a steam explosion pretreatment processSep 18, 13Jan 02, 18ANDRITZ INC.
9296830 Process for recovering sugars from a pretreatment stream of lignocellulosic biomassSep 29, 11Mar 29, 16Beta Renewables S.p.A.
9139858 Method and apparatus for mixing a lignocellulosic material with enzymesDec 10, 13Sep 22, 15ANDRITZ INC.
9011639 Waterless degumming systemJul 21, 11Apr 21, 15Bastlab, LLC
8992735 Method and device for the hydrolysis of preferably solid organic substratesMar 15, 11Mar 31, 15Biogas Systems GmbH

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0034,806 REACTOR DISCHARGEOct 11, 24Jan 30, 25Valmet AB
2024/0401,269 THERMAL-PRESSURE HYDROLYSIS SUSTAINABLE BIOMASS FOR THE PRODUCTION OF ALTERNATIVE PROTEINS AND BIO-MATERIALSDec 21, 22Dec 05, 24THERMO PRESSURE TECHNOLOGIES LEMITED
2024/0141,587 PROCESSES, METHODS, AND SYSTEMS FOR CHEMO-MECHANICAL CELLULAR EXPLOSION AND SOLID AND LIQUID PRODUCTS MADE BY THE SAMEJan 10, 24May 02, 24Not available
2023/0313,454 APPARATUS FOR RECYCLING OF LIGNOCELLULOSIC FIBRES FROM FIBREBOARDSNov 09, 21Oct 05, 23IKEA Supply AG
2023/0220,620 CONTINUOUS STEAM EXPLOSION METHOD AND A DEFIBRATION SYSTEMApr 28, 21Jul 13, 23Valmet AB
2023/0099,096 PROCESSES, METHODS, AND SYSTEMS FOR CHEMO-MECHANICAL CELLULAR EXPLOSION AND SOLID AND LIQUID PRODUCTS MADE BY THE SAMEDec 07, 22Mar 30, 23Not available
2022/0145,535 STEAM-EXPLOSION EQUIPMENT AND METHOD FOR TREATMENT OF ORGANIC MATERIALMar 20, 20May 12, 22Not available
2019/0217,232 Preparation Method of Cotton Bast Fiber and Chitosan Composite Non-woven Fabric for FiltrationMar 28, 19Jul 18, 19Not available
2017/0167,078 A REFINER APPARATUS AND A METHOD FOR REFINING CELLULOSIC MATERIALFeb 06, 15Jun 15, 17Not available
2017/0107,664 CONTINUOUS PROCESS FOR PRETREATING A LIGNO-CELLULOSIC FEEDSTOCKOct 14, 16Apr 20, 17Beta Renewables S.p.A.
2016/0010,131 METHOD FOR PRETREATING BIOMASS, AND METHOD FOR PRODUCING SUGAR CONTAINING GLUCOSE AS MAIN COMPONENTFeb 28, 13Jan 14, 16JGC CORPORATION

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Top Owners in This Subclass

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Patents Issued To Date - By Filing Year

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