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with inorganic bases or alkaline reacting compounds
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D21C3/02
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D
TEXTILES PAPER
D21
Papermaking
D21C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS APPARATUS THEREFOR
D21C3/00
Pulping cellulose-containing materials
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D21C3/02
with inorganic bases or alkaline reacting compounds
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Patents Grants
last 30 patents
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Patent Grant
Apparatuses, methods and systems for yield increase in a kraft cook...
Patent number
12,234,602
Issue date
Feb 25, 2025
Bracell Bahia Specialty Cellulose SA
Vinicius de Oliveira Salaroli
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
High brightness non-wood pulp
Patent number
12,227,900
Issue date
Feb 18, 2025
Kimberly-Clark Worldwide, Inc.
Thomas G. Shannon
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
High temperature hydrator
Patent number
12,221,382
Issue date
Feb 11, 2025
Carbon Engineering ULC
Kenton Robert Heidel
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Multi-step low temperature and low pressure process for agricultura...
Patent number
12,195,919
Issue date
Jan 14, 2025
KANBOL, INC.
Miles Leach
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Purified medicinal cannabis non-hemp hurd fiber, and articles conta...
Patent number
12,188,180
Issue date
Jan 7, 2025
David Pauwels
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Method for making an adsorptive air filter
Patent number
12,172,112
Issue date
Dec 24, 2024
IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY
Tarek Ahmed Yousef
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Non-wood pulp having high brightness and low debris
Patent number
12,146,262
Issue date
Nov 19, 2024
Kimberly-Clark Worldwide, Inc.
Zhiying Yu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Biodegradable air filter from date palm and method of fabrication t...
Patent number
12,102,947
Issue date
Oct 1, 2024
IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY
Tarek Ahmed Yousef
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method of forming glass-like sheets using date palm seeds
Patent number
12,098,506
Issue date
Sep 24, 2024
KING FAISAL UNIVERSITY
Chawki Awada
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Juncao pulp for spinning and preparation method and use thereof
Patent number
12,071,725
Issue date
Aug 27, 2024
XINXIANG CHEMICAL FIBRE CO., LTD.
Yueting Xie
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Lignocellulosic composites prepared with aqueous alkaline and urea...
Patent number
12,060,679
Issue date
Aug 13, 2024
Bradley University
Brent Tisserat
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for separation of the cellulosic part from a polyester and...
Patent number
12,049,727
Issue date
Jul 30, 2024
Sodra Skogsagarna Ekonomisk Forening
Harald Brelid
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for refining fiber and deriving chemical co-products from b...
Patent number
12,024,823
Issue date
Jul 2, 2024
Yitzac Goldstein
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Continuous process for production of cellulose pulp from grass-like...
Patent number
11,976,416
Issue date
May 7, 2024
Marinko Mikulic
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for producing refined cotton with high polymerization degree
Patent number
11,932,989
Issue date
Mar 19, 2024
HUBEI JINHANJIANG REFINED COTTON CO., LTD.
Hangxu Zhou
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Integrated kraft pulp mill and thermochemical conversion system
Patent number
11,834,783
Issue date
Dec 5, 2023
CANFOR PULP LTD.
William Neil Rowlands
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Multi-step process for the isolation of components from Miscanthus
Patent number
11,814,790
Issue date
Nov 14, 2023
EXEGI IP MANAGEMENT B.V.
Marcel Van De Peppel
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Methods for processing lignocellulosic material
Patent number
11,788,228
Issue date
Oct 17, 2023
CMBlu Energy AG
Peter Geigle
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Methods of making specialized lignin and lignin products from biomass
Patent number
11,692,000
Issue date
Jul 4, 2023
Apalta Patents OÜ
Scott Tudman
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dissolving wood pulps and methods of making and using the same
Patent number
11,661,704
Issue date
May 30, 2023
GP Cellulose GmbH
Arthur James Nonni
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Composite cellulose material obtained from coffee husks or cocoa sh...
Patent number
11,578,191
Issue date
Feb 14, 2023
Industria Colombiana de Cafe S.A.S.
Juan Carlos Posada Correa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Strong and tough structural wood materials, and methods for fabrica...
Patent number
11,554,514
Issue date
Jan 17, 2023
University of Maryland, College Park
Liangbing Hu
B32 - LAYERED PRODUCTS
Information
Patent Grant
Process for obtaining cellulose
Patent number
11,512,426
Issue date
Nov 29, 2022
Rainer Fülling
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of producing chemical pulp
Patent number
11,473,241
Issue date
Oct 18, 2022
Andritz Oy
Janne Vehmaa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Phenols as additives in kraft pulping
Patent number
11,390,990
Issue date
Jul 19, 2022
Auburn University
Zhihua Jiang
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Methods for hydrolysing lignocellulosic material
Patent number
11,332,768
Issue date
May 17, 2022
LEAF SCIENCES PTY LTD
Alex Baker
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Integrated Kraft pulp mill and thermochemical conversion system
Patent number
11,306,435
Issue date
Apr 19, 2022
LICELLA PTY LTD.
William Neil Rowlands
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Process and system for producing pulp, energy, and bioderivatives f...
Patent number
11,305,254
Issue date
Apr 19, 2022
Circ, LLC
Sandeep Kumar
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for producing parenchymal cell cellulose
Patent number
11,299,852
Issue date
Apr 12, 2022
BETULIUM OY
Antti Laukkanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for refining fiber and deriving chemical co-products from b...
Patent number
11,255,045
Issue date
Feb 22, 2022
CIRCULAR SYSTEMS, S.P.C.
Yitzac Goldstein
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
LOW TEMPERATURE AND LOW PRESSURE PROCESS FOR AGRICULTURAL FEEDSTOCK...
Publication number
20250101683
Publication date
Mar 27, 2025
Kanbol, Inc.
Miles Leach
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
NON-WOOD PULP HAVING HIGH BRIGHTNESS AND LOW DEBRIS
Publication number
20250012010
Publication date
Jan 9, 2025
Kimberly-Clark Worldwide, Inc.
Zhiying Yu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
A method, use of the same, a pulp composition, and a system
Publication number
20240426050
Publication date
Dec 26, 2024
METSÄ BOARD OYJ
Mikko Nikamaa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHODS OF INCREASING FORMABILITY OF A PALM SHEATH MATERIAL, METHOD...
Publication number
20240344270
Publication date
Oct 17, 2024
Purdue Research Foundation
Srinivasan Chandrasekar
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HEMP PAPER PACKAGING MATERIAL FOR FOODSTUFF
Publication number
20240337069
Publication date
Oct 10, 2024
Wm. Wrigley Jr. Company
Preeti TYAGI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PREPARING FLUFF PULP FROM BAMBOOS AND FLUFF PULP PREPARE...
Publication number
20240328083
Publication date
Oct 3, 2024
SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Yichao LEI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
A METHOD FOR PRODUCING A CHEMI-THERMOMECHANICAL FIBROUS PULP FROM N...
Publication number
20240309586
Publication date
Sep 19, 2024
RELEAF PAPER FRANCE SAS
Valentyn FRECHKA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS TO OBTAIN FULLY OXIDIZED WHITE LIQUOR FOR USE IN THE FIBERL...
Publication number
20240301622
Publication date
Sep 12, 2024
L'air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation Des Procedes Ge...
Oliveira ARAUJO
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS OF USING NON-WOOD FIBERS TO CREATE PAPER PULP
Publication number
20240263393
Publication date
Aug 8, 2024
GAIA IP Holdings LLC
Mark Majors
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Process and System for Producing Pulp, Energy, and Bioderivatives f...
Publication number
20240226841
Publication date
Jul 11, 2024
Circ, LLC
Sandeep Kumar
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
METHOD FOR DIGESTING LIGNOCELLULOSIC MATERIAL
Publication number
20240175205
Publication date
May 30, 2024
Solenis Technologies, L.P.
Scott Thomas Schnelle
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Process and System for Producing Pulp, Energy, and Bioderivatives f...
Publication number
20240131489
Publication date
Apr 25, 2024
Circ, LLC
Sandeep Kumar
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING ALKALI METAL/ALKALINE EARTH METAL HYDROXIDE AN...
Publication number
20240124986
Publication date
Apr 18, 2024
TOHOKU UNIVERSITY
Kousuke HIROMORI
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
PROCESS FOR PRODUCING AND USING FIBRILLATED BIODEGRADABLE MICROFIBERS
Publication number
20240102238
Publication date
Mar 28, 2024
nicholas morris
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
INTEGRATED KRAFT PULP MILL AND THERMOCHEMICAL CONVERSION SYSTEM
Publication number
20240102241
Publication date
Mar 28, 2024
CANFOR PULP LTD
William Neil Rowlands
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
PULP FOR JUNCAO SPINNING AND PREPARATION METHOD AND USE THEREOF
Publication number
20240084507
Publication date
Mar 14, 2024
XINXIANG CHEMICAL FIBRE CO., LTD.
Yijie XIE
D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
Information
Patent Application
NON-WOOD PULP HAVING HIGH BRIGHTNESS AND LOW DEBRIS
Publication number
20240018723
Publication date
Jan 18, 2024
Kimberly-Clark Worldwide, Inc.
Zhiying Yu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HIGH BRIGHTNESS NON-WOOD PULP
Publication number
20230407562
Publication date
Dec 21, 2023
Kimberly-Clark Worldwide, Inc.
Thomas G. Shannon
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
APPARATUSES, METHODS AND SYSTEMS FOR YIELD INCREASE IN A KRAFT COOK...
Publication number
20230374730
Publication date
Nov 23, 2023
Bracell Bahia Specialty Cellulose SA
Vinicius de Oliveira Salaroli
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS FOR TREATING TERRESTRIAL-BASED AND MARINE-BASED BIOMASSES
Publication number
20230357988
Publication date
Nov 9, 2023
GREENKEY LLC
Melvin Mitchell
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS FOR PRODUCTION OF CELLULOSE NANOFIBERS FROM MISCANTHUS X. G...
Publication number
20230313455
Publication date
Oct 5, 2023
The University of Chicago
Stuart J. ROWAN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS AND APPARATUS FOR WHITE LIQUOR OXIDATION
Publication number
20230313456
Publication date
Oct 5, 2023
Messer Austria GmbH
Bernhard Thaller
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
A COOKING METHOD
Publication number
20230265612
Publication date
Aug 24, 2023
AMPPC Finland Oy
Matti KURKI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HIGH YIELD CHEMICAL PULPING AND BLEACHING PROCESS
Publication number
20230265609
Publication date
Aug 24, 2023
GPCP IP Holdings LLC
Jeffrey A. Lee
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PAPER PULP, A METHOD FOR PRODUCING PAPER PULP, AND PAPER PULP PRODUCTS
Publication number
20230257936
Publication date
Aug 17, 2023
ShenZhen YUTO Packaging Technology Co., Ltd.
Zhangyan CHEN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS FOR REFINING FIBER AND DERIVING CHEMICAL CO-PRODUCTS FROM B...
Publication number
20230220622
Publication date
Jul 13, 2023
Circular Systems S.P.C.
Yitzac Goldstein
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
STRONG AND TOUGH STRUCTURAL WOOD MATERIALS, AND METHODS FOR FABRICA...
Publication number
20230166427
Publication date
Jun 1, 2023
University of Maryland, College Park
Liangbing Hu
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Application
PROCESS FOR INCREASING DIGESTION EFFICIENCY OF LIGNOCELLULOSIC MATE...
Publication number
20230160140
Publication date
May 25, 2023
Solenis Technologies, L.P.
Scott Thomas Schnelle
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
EXTRACTION OF DELIGNIFIED, CELLULOSE-BASED FIBERS FROM NATURAL PLAN...
Publication number
20230160141
Publication date
May 25, 2023
University of Maryland, College Park
Liangbing HU
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HEMP COMPOSITES
Publication number
20230062079
Publication date
Mar 2, 2023
Elham Fini
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE