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D21C3/006

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DTEXTILES PAPER D21Papermaking D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS APPARATUS THEREFOR D21C3/00Pulping cellulose-containing materials

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D21C3/006with compounds not otherwise provided for

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Process for increasing digestion efficiency of lignocellulosic mate...
- Patent number 12,351,981
- Issue date Jul 8, 2025
- Solenis Technologies, L.P.
- Scott Thomas Schnelle
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for producing densified cellulosic composite material
- Patent number 12,320,065
- Issue date Jun 3, 2025
- Thomas Schnider
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Modified alkanesulfonic acid and uses thereof
- Patent number 12,276,067
- Issue date Apr 15, 2025
- SixRing Inc.
- Clay Purdy
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Processes for producing nanocellulose, and nanocellulose compositio...
- Patent number 12,091,818
- Issue date Sep 17, 2024
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Nanolignocellulose compositions and processes to produce these comp...
- Patent number 11,834,523
- Issue date Dec 5, 2023
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- C13 - SUGAR INDUSTRY
Information Patent Grant
Modified sulfuric acid and uses thereof
- Patent number 11,760,720
- Issue date Sep 19, 2023
- SixRing Inc.
- Clay Purdy
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for extracting biomass
- Patent number 11,377,790
- Issue date Jul 5, 2022
- CH-Bioforce Oy
- Sebastian Von Schoultz
- C13 - SUGAR INDUSTRY
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-...
Information Patent Grant
Method for producing cellulose-containing solid material and method...
- Patent number 10,450,698
- Issue date Oct 22, 2019
- Idemitsu Kosan Co., Ltd.
- Yoshihito Koyama
- C13 - SUGAR INDUSTRY
Information Patent Grant
Organic solvent pretreatment of biomass to enhance enzymatic saccha...
- Patent number 8,389,253
- Issue date Mar 5, 2013
- E I du Pont de Nemours and Company
- Bruce A Diner
- C13 - SUGAR INDUSTRY
Information Patent Grant
Chemical activation and refining of southern pine kraft fibers
- Patent number 8,262,850
- Issue date Sep 11, 2012
- International Paper Company
- Zheng Tan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Organic solvent pretreatment of biomass to enhance enzymatic saccha...
- Patent number 8,241,880
- Issue date Aug 14, 2012
- E I du Pont de Nemours and Company
- Bruce A. Diner
- C13 - SUGAR INDUSTRY
Information Patent Grant
Chemical method for lignin depolymerization
- Patent number 6,214,976
- Issue date Apr 10, 2001
- Takashi Watanabe
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of producing a pulp from cellulosic material using formic ac...
- Patent number 6,183,597
- Issue date Feb 6, 2001
- Natural Pulping AG
- Sven Siegle
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of producing pulp using single-stage cooking with formic aci...
- Patent number 6,156,156
- Issue date Dec 5, 2000
- Chempolis Oy
- Pasi Rousu
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulping process employing nascent oxygen
- Patent number 5,770,010
- Issue date Jun 23, 1998
- R-J Holding Company
- James W. Jelks
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Repulping wet strength paper and paperboard with persulfate and a c...
- Patent number 5,674,358
- Issue date Oct 7, 1997
- Hercules Incorporated
- Herbert H. Espy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for pulping wood chips separate alkali and peroxymonosulfate...
- Patent number 5,433,825
- Issue date Jul 18, 1995
- The United States of America as represented by the Secretary of Agriculture
- James L. Minor
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for preparing pulp using potassium-based alkaline solution
- Patent number 5,306,392
- Issue date Apr 26, 1994
- Akio Mita
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulping process
- Patent number 4,851,082
- Issue date Jul 25, 1989
- Director General of Agency of Industrial Science and Technology
- Akio Mita
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Alkaline peroxide treatment of agricultural byproducts
- Patent number 4,806,475
- Issue date Feb 21, 1989
- The United States of America as represented by the Secretary of Agriculture
- John M. Gould
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Oxidative degradation of lignin with inorganic metal complexes
- Patent number 4,773,966
- Issue date Sep 27, 1988
- Regents of The University of Minnesota
- Van-Ba Huynh
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Alkaline peroxide treatment of nonwoody lignocellulosics
- Patent number 4,649,113
- Issue date Mar 10, 1987
- The United States of America as represented by the Secretary of Agriculture
- John M. Gould
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Method and system for selective alkaline defiberization and deligni...
- Patent number 4,329,200
- Issue date May 11, 1982
- Board of Reagents, University of Washington
- Kyosti V. Sarkanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Nontoxic cellulose solvent and process for forming and utilizing th...
- Patent number 4,265,675
- Issue date May 5, 1981
- Purdue Research Foundation
- George T. Tsao
- C13 - SUGAR INDUSTRY
Information Patent Grant
3428520
- Patent number 3,428,520
- Issue date Feb 18, 1969
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
3121989
- Patent number 3,121,989
- Issue date Feb 25, 1964
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
2949397
- Patent number 2,949,397
- Issue date Aug 16, 1960
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
2947739
- Patent number 2,947,739
- Issue date Aug 2, 1960
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
2601110
- Patent number 2,601,110
- Issue date Jun 17, 1952
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
LIGNOCELLULOSE REFINERY
- Publication number 20240116835
- Publication date Apr 11, 2024
- Katholieke Universiteit Leuven
- Bert SELS
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
MODIFIED SULFURIC ACID AND USES THEREOF
- Publication number 20230382852
- Publication date Nov 30, 2023
- SixRing Inc.
- Clay PURDY
- C01 - INORGANIC CHEMISTRY
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
PROCESSES FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE COMPOSITIO...
- Publication number 20210277151
- Publication date Sep 9, 2021
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MODIFIED ALKANESULFONIC ACID AND USES THEREOF
- Publication number 20210269971
- Publication date Sep 2, 2021
- SixRing Inc.
- Clay Purdy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NANOLIGNOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE THESE COMP...
- Publication number 20210221919
- Publication date Jul 22, 2021
- GranBio Intellectual Property Holdings, LLC
- Kimberly NELSON
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
DEGUMMING AND SCOURING OF BAST MATERIAL FOR PRODUCTION OF TEXTILE A...
- Publication number 20210148009
- Publication date May 20, 2021
- Renaissance Fiber LLC
- Michael S. Long
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESS FOR REFINING FIBER AND DERIVING CHEMICAL CO-PRODUCTS FROM B...
- Publication number 20210062416
- Publication date Mar 4, 2021
- Circular Systems S.P.C.
- Yitzac Goldstein
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR EXTRACTING BIOMASS
- Publication number 20200256013
- Publication date Aug 13, 2020
- CH-Bioforce Oy
- Sebastian VON SCHOULTZ
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
METHOD FOR PRODUCING DENSIFIED CELLULOSIC COMPOSITE MATERIAL
- Publication number 20200208346
- Publication date Jul 2, 2020
- ETH Zurich
- Thomas SCHNIDER
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR PRODUCING ACETATE GRADE DISSOLVING PULP FROM POPLAR RESI...
- Publication number 20200173103
- Publication date Jun 4, 2020
- QILU UNIVERSITY OF TECHNOLOGY
- Chaojun WU
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Use of Cellulase to improve Viscosity Control of Dissolving Pulp
- Publication number 20190257031
- Publication date Aug 22, 2019
- NOVOZYMES A/S
- Pedro Emanuel Garcia-Loureiro
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NANOLIGNOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE THESE COMP...
- Publication number 20180298113
- Publication date Oct 18, 2018
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- C13 - SUGAR INDUSTRY
Information Patent Application
THERMOPLASTIC RESIN COMPOSITION AND METHOD FOR PRODUCING THERMOPLAS...
- Publication number 20180179369
- Publication date Jun 28, 2018
- Idemitsu Kosan Co., Ltd.
- Shinji Ito
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR PRODUCING CELLULOSE-CONTAINING SOLID MATERIAL AND METHOD...
- Publication number 20180171552
- Publication date Jun 21, 2018
- Idemitsu Kosan Co., Ltd.
- Yoshihito KOYAMA
- C13 - SUGAR INDUSTRY
Information Patent Application
PROCESSES FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE COMPOSITIO...
- Publication number 20170210826
- Publication date Jul 27, 2017
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- C13 - SUGAR INDUSTRY
Information Patent Application
METHOD FOR EXTRACTING BIOMASS
- Publication number 20150167234
- Publication date Jun 18, 2015
- AB BLN-WOODS LTD
- Sebastian Von Schoultz
- C13 - SUGAR INDUSTRY
Information Patent Application
RECYCLABLE BUFFER FOR THE HYDROTHERMAL HYDROCATALYTIC TREATMENT OF...
- Publication number 20140166221
- Publication date Jun 19, 2014
- Shell Oil Company
- Joseph Broun POWELL
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Chemical Activation and Refining of Southern Pine Kraft Fibers
- Publication number 20140000825
- Publication date Jan 2, 2014
- International Paper Company
- ZHENG TAN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
CHEMICAL ACTIVATION AND REFINING OF SOUTHERN PINE KRAFT FIBERS
- Publication number 20130098571
- Publication date Apr 25, 2013
- International Paper Company
- Zheng Tan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ORGANIC SOLVENT PRETREATMENT OF BIOMASS TO ENHANCE ENZYMATIC SACCHA...
- Publication number 20120264173
- Publication date Oct 18, 2012
- E I DU PONT DE NEMOURS AND COMPANY
- BRUCE A. DINER
- C13 - SUGAR INDUSTRY
Information Patent Application
PULPING PROCESS
- Publication number 20120247696
- Publication date Oct 4, 2012
- SODRA CELL AB
- Johannes Bogren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
IONIC LIQUID SYSTEMS FOR THE PROCESSING OF BIOMASS, THEIR COMPONENT...
- Publication number 20110251377
- Publication date Oct 13, 2011
- The Board of Trustees of the University of Alabama
- Mustafizur Rahman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ORGANIC SOLVENT PRETREATMENT OF BIOMASS TO ENHANCE ENZYMATIC SACCHA...
- Publication number 20100159516
- Publication date Jun 24, 2010
- E.I. du Pont de Nemours and Company
- Bruce A. Diner
- C13 - SUGAR INDUSTRY
Information Patent Application
Chemical activation and refining of southern pine kraft fibers
- Publication number 20090054863
- Publication date Feb 26, 2009
- Zheng Tan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Chemical activation and refining of southern pine kraft fibers
- Publication number 20070119556
- Publication date May 31, 2007
- Zheng Tan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Chemical activation and refining of southern pine kraft fibers
- Publication number 20050061455
- Publication date Mar 24, 2005
- Zheng Tan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

with compounds not otherwise provided for

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Process for increasing digestion efficiency of lignocellulosic mate...

Method for producing densified cellulosic composite material

Modified alkanesulfonic acid and uses thereof

Processes for producing nanocellulose, and nanocellulose compositio...

Nanolignocellulose compositions and processes to produce these comp...

Modified sulfuric acid and uses thereof

Method for extracting biomass

Process for refining fiber and deriving chemical co-products from b...

Method for producing cellulose-containing solid material and method...

Organic solvent pretreatment of biomass to enhance enzymatic saccha...

Chemical activation and refining of southern pine kraft fibers

Organic solvent pretreatment of biomass to enhance enzymatic saccha...

Chemical method for lignin depolymerization

Method of producing a pulp from cellulosic material using formic ac...

Method of producing pulp using single-stage cooking with formic aci...

Pulping process employing nascent oxygen

Repulping wet strength paper and paperboard with persulfate and a c...

Method for pulping wood chips separate alkali and peroxymonosulfate...

Process for preparing pulp using potassium-based alkaline solution

Pulping process

Alkaline peroxide treatment of agricultural byproducts

Oxidative degradation of lignin with inorganic metal complexes

Alkaline peroxide treatment of nonwoody lignocellulosics

Method and system for selective alkaline defiberization and deligni...

Nontoxic cellulose solvent and process for forming and utilizing th...

3428520

3121989

2949397

2947739

2601110

Patents Applicationslast 30 patents

LIGNOCELLULOSE REFINERY

MODIFIED SULFURIC ACID AND USES THEREOF

EXTRACTION OF DELIGNIFIED, CELLULOSE-BASED FIBERS FROM NATURAL PLAN...

PROCESSES FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE COMPOSITIO...

MODIFIED ALKANESULFONIC ACID AND USES THEREOF

NANOLIGNOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE THESE COMP...

DEGUMMING AND SCOURING OF BAST MATERIAL FOR PRODUCTION OF TEXTILE A...

PROCESS FOR REFINING FIBER AND DERIVING CHEMICAL CO-PRODUCTS FROM B...

METHOD FOR EXTRACTING BIOMASS

METHOD FOR PRODUCING DENSIFIED CELLULOSIC COMPOSITE MATERIAL

METHOD FOR PRODUCING ACETATE GRADE DISSOLVING PULP FROM POPLAR RESI...

Use of Cellulase to improve Viscosity Control of Dissolving Pulp

NANOLIGNOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE THESE COMP...

THERMOPLASTIC RESIN COMPOSITION AND METHOD FOR PRODUCING THERMOPLAS...

METHOD FOR PRODUCING CELLULOSE-CONTAINING SOLID MATERIAL AND METHOD...

PROCESSES FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE COMPOSITIO...

METHOD FOR EXTRACTING BIOMASS

RECYCLABLE BUFFER FOR THE HYDROTHERMAL HYDROCATALYTIC TREATMENT OF...

Chemical Activation and Refining of Southern Pine Kraft Fibers

CHEMICAL ACTIVATION AND REFINING OF SOUTHERN PINE KRAFT FIBERS

ORGANIC SOLVENT PRETREATMENT OF BIOMASS TO ENHANCE ENZYMATIC SACCHA...

PULPING PROCESS

IONIC LIQUID SYSTEMS FOR THE PROCESSING OF BIOMASS, THEIR COMPONENT...

ORGANIC SOLVENT PRETREATMENT OF BIOMASS TO ENHANCE ENZYMATIC SACCHA...

Chemical activation and refining of southern pine kraft fibers

Chemical activation and refining of southern pine kraft fibers

Chemical activation and refining of southern pine kraft fibers