D21H 11/08

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Class  D21H : PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR


Subclass 11/08: Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only Mechanical or thermomechanical pulp

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12116729 Common preparation of lignocellulosic feedstock and a product containing cellulose but free from ligninMay 29, 20Oct 15, 24Chemiefaser Lenzing Aktiengesellschaft
12077915 Nanocellulose-reinforced corrugated mediumJun 10, 22Sep 03, 24GranBio Intellectual Property Holdings, LLC
12077654 Hydrophobic nanocellulose-coated paper and paperboardSep 10, 19Sep 03, 24GranBio Intellectual Property Holdings, LLC
12018434 Multilayered fibrous sheet, a method for making a multilayered fibrous sheet, and use of mechanical pulpApr 16, 21Jun 25, 24Metsä Board Oyj
11926128 Light weight linerboard for corrugated boardJun 25, 19Mar 12, 24Stora Enso Oyj
11926966 Method of increasing efficiency of chemical additives in a papermaking systemOct 30, 20Mar 12, 24Solenis Technologies, L.P.
11834784 Method for preparing unbleached biomechanical pulp and fully utilizing by-products by treating straws with heat steam in synergy with biological enzymeDec 23, 21Dec 05, 23QILU UNIVERSITY OF TECHNOLOGY
11834793 Process for production of film comprising microfibrillated celluloseJan 31, 19Dec 05, 23Stora Enso Oyj
11827771 Oleophilic and hydrophobic nanocellulose materialsSep 06, 22Nov 28, 23GranBio Intellectual Property Holdings, LLC
11674267 Absorbent paper products having unique physical strength propertiesMay 04, 20Jun 13, 23Mercer International Inc.
11668053 Absorbent paper products having unique physical strength propertiesMay 04, 20Jun 06, 23Mercer International Inc.
11655593 Method for manufacturing multi-layered fibrous web and multi-layered fibrous webJul 10, 19May 23, 23Kemira Oyj
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
11466408 Highly absorbent articlesJul 26, 19Oct 11, 22Eastman Chemical Company
11359334 Nanocellulose-reinforced corrugated mediumOct 03, 19Jun 14, 22GranBio Intellectual Property Holdings, LLC
11331830 Process for producing fiber-polymer compositesNov 16, 16May 17, 22Stora Enso Oyj
11306433 Composition of matter effluent from refiner of a wet laid processJul 26, 19Apr 19, 22Eastman Chemical Company
11299853 Paper or paperboard product comprising at least one ply containing high yield pulp and its production methodSep 20, 17Apr 12, 22Not available
11248345 Dissolved air de-bonding of a tissue sheetNov 05, 19Feb 15, 22GPCP IP Holdings LLC
11248346 Dissolved air de-bonding of a tissue sheetSep 18, 20Feb 15, 22GPCP IP Holdings LLC

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0075,428 Methods for Liberating Trichome Fibers from Portions of a Host PlantNov 18, 24Mar 06, 25Not available
2025/0059,709 NANOCELLULOSE-REINFORCED CORRUGATED MEDIUMAug 30, 24Feb 20, 25Not available
2025/0059,357 HYDROPHOBIC NANOCELLULOSE-COATED PAPER AND PAPERBOARDAug 30, 24Feb 20, 25Not available
2025/0027,270 A method, uses of the same, a pulp composition, and a systemAug 17, 22Jan 23, 25Not available
2024/0376,670 A METHOD FOR PRODUCING A FILM COMPRISING MICROFIBRILLATED CELLULOSE, AND A FILM COMPRISING MICROFIBRILLATED CELLULOSEAug 31, 22Nov 14, 24Stora Enso Oyj
2024/0376,673 Assymetric PaperboardAug 11, 22Nov 14, 24Not available
2024/0309,586 A METHOD FOR PRODUCING A CHEMI-THERMOMECHANICAL FIBROUS PULP FROM NON-WOOD PLANT RAW MATERIALS AND AN AUTOMATED LINE FOR PRODUCING SAID PULP BY SAID METHODMar 22, 23Sep 19, 24Not available
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
2023/0313,463 MULTILAYER FILM COMPRISING MFCAug 31, 21Oct 05, 23Stora Enso Oyj
2022/0356,648 Market Pulps Comprising Surface Enhanced Pulp Fibers and Methods of Making the SameSep 23, 20Nov 10, 22Not available
2022/0178,082 METHOD OF PRODUCING A MOLDED FIBER PRODUCT AND MOLDED FIBER PRODUCTFeb 12, 20Jun 09, 22Stora Enso Oyj
2021/0262,169 METHOD FOR MANUFACTURING MULTI-LAYERED FIBROUS WEB AND MULTI-LAYERED FIBROUS WEBJul 10, 19Aug 26, 21Kemira Oyj
2021/0047,780 METHOD OF INCREASING EFFICIENCY OF CHEMICAL ADDITIVES IN A PAPERMARKING SYSTEMSOct 30, 20Feb 18, 21Solenis Technologies, L.P.
2019/0292,337 A UV BLOCKING FILM AND COMPOSITION COMPRISING MICROFIBRILLATED CELLULOSE, A METHOD FOR PRODUCING SAID FILM AND USE OF THE COMPOSITIONMay 15, 17Sep 26, 19Not available
2019/0185,638 OLEOPHILIC AND HYDROPHOBIC NANOCELLULOSE MATERIALSJul 13, 18Jun 20, 19Not available
2015/0267,349 Method of Increasing Enzyme Stability and Activity for Pulp and Paper ProductionJun 08, 15Sep 24, 15ENZYMATIC DEINKING TECHNOLOGIES, L.L.C.

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