Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Industry

CPC
D21C9/1057

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

DTEXTILES PAPER D21Papermaking D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS APPARATUS THEREFOR D21C9/00After-treatment of cellulose pulp

Current Industry

D21C9/1057Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Industries

Patents Grantslast 30 patents

Information Patent Grant
High efficiency fiber bleaching process
- Patent number 11,840,805
- Issue date Dec 12, 2023
- GPCP IP Holdings LLC
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for producing bleached wood fibre material
- Patent number 11,725,338
- Issue date Aug 15, 2023
- BASF SE
- Stefan Erren
- 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
Method for preparing dissolving pulp by TCF bleaching of poplar KP
- Patent number 11,643,777
- Issue date May 9, 2023
- QILU UNIVERSITY OF TECHNOLOGY
- Xingxiang Ji
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
High efficiency fiber bleaching process
- Patent number 11,591,751
- Issue date Feb 28, 2023
- GPCP IP Holdings LLC
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for bleaching paper pulp
- Patent number 11,384,480
- Issue date Jul 12, 2022
- CENTRE TECHNIQUE DE L'INDUSTRIE DES PAPIERS, CARTONS ET CELLULOSES
- Gerard Mortha
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Dissolving wood pulps and methods of making and using the same
- Patent number 11,105,042
- Issue date Aug 31, 2021
- GP Cellulose GmbH
- Arthur J. Nonni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for producing bleached wood fibre material
- Patent number 11,015,290
- Issue date May 25, 2021
- BASF SE
- Stefan Erren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Low viscosity kraft fiber having reduced yellowing properties and m...
- Patent number 10,995,453
- Issue date May 4, 2021
- GP Cellulose GmbH
- Arthur J. Nonni
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Cellulose composite materials and methods of making and using the same
- Patent number 10,995,155
- Issue date May 4, 2021
- GP Cellulose GmbH
- Arthur J. Nonni
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Methods of pulp fiber treatment
- Patent number 10,883,224
- Issue date Jan 5, 2021
- Clean Chemistry, Inc.
- Wayne E. Buschmann
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Modified cellulose from chemical fiber and methods of making and us...
- Patent number 10,865,519
- Issue date Dec 15, 2020
- GP Cellulose GmbH
- Arthur J. Nonni
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Low viscosity kraft fiber having reduced yellowing properties and m...
- Patent number 10,597,819
- Issue date Mar 24, 2020
- GP Cellulose GmbH
- Arthur J. Nonni
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Method of making bleached microcrystalline cellulose
- Patent number 10,597,820
- Issue date Mar 24, 2020
- DuPont Nutrition USA, Inc.
- Zheng Tan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Use of surfactant to treat pulp and improve the incorporation of kr...
- Patent number 10,407,830
- Issue date Sep 10, 2019
- GP Cellulose GmbH
- Arthur J. Nonni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for producing increased bulk pulp fibers, pulp fibers obtai...
- Patent number 10,280,559
- Issue date May 7, 2019
- International Paper Company
- Gopal Goyal
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for delignifying and bleaching pulp
- Patent number 10,006,169
- Issue date Jun 26, 2018
- Evonik Degussa GmbH
- Thomas Dietz
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Low viscosity kraft fiber having reduced yellowing properties and m...
- Patent number 10,000,890
- Issue date Jun 19, 2018
- GP Cellulose GmbH
- Arthur J. Nonni
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Methods of producing a paper product
- Patent number 9,945,073
- Issue date Apr 17, 2018
- The Research Foundation for the State University of New York
- Thomas E. Amidon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Methods of producing a paper product
- Patent number 9,683,329
- Issue date Jun 20, 2017
- The Research Foundation for the State University of New York
- Thomas E. Amidon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Use of surfactant to treat pulp and improve the incorporation of kr...
- Patent number 9,617,686
- Issue date Apr 11, 2017
- GP Cellulose GmbH
- Arthur James Nonni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Product and processes from an integrated forest biorefinery
- Patent number 9,273,431
- Issue date Mar 1, 2016
- The Research Foundation for the State University of New York
- Thomas E. Amidon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Product and processes from an integrated forest biorefinery
- Patent number 8,940,133
- Issue date Jan 27, 2015
- The Research Foundation for the State University of New York
- Thomas E. Amidon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
High brightness pulps from lignin rich waste papers
- Patent number 8,845,860
- Issue date Sep 30, 2014
- Georgia-Pacific Consumer Products LP
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of treating liquid flows at a chemical pulp mill
- Patent number 8,815,053
- Issue date Aug 26, 2014
- Adritz Oy
- Janne Vehmaa
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Product and processes from an integrated forest biorefinery
- Patent number 8,317,975
- Issue date Nov 27, 2012
- The Research Foundation of the State University of New York
- Thomas E. Amidon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus and method for washing pulps
- Patent number 8,052,839
- Issue date Nov 8, 2011
- Andritz Oy
- Olavi Pikka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Alkaline extraction stages comprising xylanase
- Patent number 7,541,175
- Issue date Jun 2, 2009
- Iogen Energy Corporation
- Jeff Tolan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of xylanase treatment in a chlorine dioxide bleaching sequence
- Patent number 7,320,741
- Issue date Jan 22, 2008
- Iogen Bio-Products Corporation
- Jeffrey S. Tolan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for high temperature peroxide bleaching of pulp with cool d...
- Patent number 7,297,225
- Issue date Nov 20, 2007
- Georgia-Pacific Consumer Products LP
- Hazen Charles Thomas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR BLEACHING PULP FROM RECYCLED TEXTILE MATERIAL
- Publication number 20230392320
- Publication date Dec 7, 2023
- VALMET AB
- Maria WENNERSTRÖM
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SHORT-SEQUENCE ECF BLEACHING PROCESS X/Z/D-EOP-D OR X/D/Z-EOP-D FOR...
- Publication number 20230349098
- Publication date Nov 2, 2023
- QILU UNIVERSITY OF TECHNOLOGY
- Jiachuan CHEN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESS AND APPARATUS FOR PRODUCING BLEACHED CELLULOSE
- Publication number 20230203751
- Publication date Jun 29, 2023
- Messer Austria GmbH
- Bernhard Thaller
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
High Efficiency Fiber Bleaching Process
- Publication number 20230167604
- Publication date Jun 1, 2023
- GPCP IP Holdings LLC
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Oxygen Treatment of High Kappa Fibers
- Publication number 20220213648
- Publication date Jul 7, 2022
- GPCP IP Holdings LLC
- Kevin M. Holtman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NOVEL DISSOLVING WOOD PULPS AND METHODS OF MAKING AND USING THE SAME
- Publication number 20210355635
- Publication date Nov 18, 2021
- GP CELLULOSE GMBH
- Arthur James NONNI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR PRODUCING BLEACHED WOOD FIBRE MATERIAL
- Publication number 20210254280
- Publication date Aug 19, 2021
- BASF SE
- Stefan ERREN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
High Efficiency Fiber Bleaching Process
- Publication number 20210079594
- Publication date Mar 18, 2021
- GPCP IP Holdings LLC
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR PREPARING DISSOLVING PULP BY TCF BLEACHING OF POPLAR KP
- Publication number 20210062420
- Publication date Mar 4, 2021
- QILU UNIVERSITY OF TECHNOLOGY
- Xingxiang JI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method For Preparing Dissolving Pulp By Totally Chlorine-Free Bleac...
- Publication number 20210062419
- Publication date Mar 4, 2021
- QILU UNIVERSITY OF TECHNOLOGY
- Zhongjian TIAN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
LOW VISCOSITY KRAFT FIBER HAVING REDUCED YELLOWING PROPERTIES AND M...
- Publication number 20200181839
- Publication date Jun 11, 2020
- GP Cellulose GMbH
- Arthur J. Nonni
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
METHOD FOR BLEACHING PAPER PULP
- Publication number 20190345672
- Publication date Nov 14, 2019
- CENTRE TECHNIQUE DE L'INDUSTRIE DES PAPIERS, CARTONS ET CELLULOSES
- Gerard MORTHA
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NOVEL DISSOLVING WOOD PULPS AND METHODS OF MAKING AND USING THE SAME
- Publication number 20190264388
- Publication date Aug 29, 2019
- GP Cellulose GMbH
- Arthur J. Nonni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SELECTIVE REMOVAL OF K+ AND CL- FROM RECOVERY BOILER ELECTROSTATIC...
- Publication number 20190112759
- Publication date Apr 18, 2019
- L'air Liquide, Societe Anonyme Pour L'etude et L'Exploitation Des Procedes Ge...
- Arnaldo Manuel ESTIMA DE OLIVEIRA ARAUJO
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NOVEL CELLULOSE COMPOSITE MATERIALS AND METHODS OF MAKING AND USING...
- Publication number 20180312610
- Publication date Nov 1, 2018
- GP Cellulose GMbH
- Arthur J. Nonni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
LOW VISCOSITY KRAFT FIBER HAVING REDUCED YELLOWING PROPERTIES AND M...
- Publication number 20180266051
- Publication date Sep 20, 2018
- GP Cellulose GMbH
- Arthur J. Nonni
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
METHODS OF PRODUCING A PAPER PRODUCT
- Publication number 20180245285
- Publication date Aug 30, 2018
- The Research Foundation for the State University of New York
- Thomas E. Amidon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR PRODUCING BLEACHED WOOD FIBRE MATERIAL
- Publication number 20180216292
- Publication date Aug 2, 2018
- BASF SE
- Stefan ERREN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MODIFIED CELLULOSE FROM CHEMICAL FIBER AND METHODS OF MAKING AND US...
- Publication number 20180135245
- Publication date May 17, 2018
- GP Cellulose GMbH
- Arthur J. Nonni
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PROCESS FOR PRODUCING INCREASED BULK PULP FIBERS, PULP FIBERS OBTAI...
- Publication number 20180127919
- Publication date May 10, 2018
- International Paper Company
- Gopal Goyal
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD OF MAKING BLEACHED MICROCRYSTALLINE CELLULOSE
- Publication number 20180119346
- Publication date May 3, 2018
- FMC Corporation
- Zheng Tan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHODS OF PRODUCING A PAPER PRODUCT
- Publication number 20170306557
- Publication date Oct 26, 2017
- The Research Foundation for the State University of New York
- Thomas E. Amidon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
LOW VISCOSITY KRAFT FIBER HAVING REDUCED YELLOWING PROPERTIES AND M...
- Publication number 20140371442
- Publication date Dec 18, 2014
- GP Cellulose GMbH
- Arthur J. Nonni
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
PRODUCT AND PROCESSES FROM AN INTEGRATED FOREST BIOREFINERY
- Publication number 20140182796
- Publication date Jul 3, 2014
- The Research Foundation for the State University of New York
- Thomas E. Amidon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PRODUCT AND PROCESSES FROM AN INTEGRATED FOREST BIOREFINERY
- Publication number 20130112359
- Publication date May 9, 2013
- Thomas E. Amidon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD OF TREATING LIQUID FLOWS AT A CHEMICAL PULP MILL
- Publication number 20120279669
- Publication date Nov 8, 2012
- ANDRITZ OY
- Janne Vehmaa
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
High Brightness Pulps From Lignin Rich Waste Papers
- Publication number 20120067532
- Publication date Mar 22, 2012
- GEORGIA-PACIFIC CONSUMER PRODUCTS LP
- Jeffrey A. Lee
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Apparatus and Method for Washing Pulps
- Publication number 20080196848
- Publication date Aug 21, 2008
- ANDRITZ OY
- Olavi Pikka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MULTI-STEP PULP BLEACHING
- Publication number 20080087390
- Publication date Apr 17, 2008
- Fort James Corporation
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Treatment of cellulose during bleaching with agent capable of reduc...
- Publication number 20070199668
- Publication date Aug 30, 2007
- Borregaard ChemCell
- Justin T. Scarpello
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

High efficiency fiber bleaching process

Method for producing bleached wood fibre material

Dissolving wood pulps and methods of making and using the same

Method for preparing dissolving pulp by TCF bleaching of poplar KP

High efficiency fiber bleaching process

Method for bleaching paper pulp

Dissolving wood pulps and methods of making and using the same

Method for producing bleached wood fibre material

Low viscosity kraft fiber having reduced yellowing properties and m...

Cellulose composite materials and methods of making and using the same

Methods of pulp fiber treatment

Modified cellulose from chemical fiber and methods of making and us...

Low viscosity kraft fiber having reduced yellowing properties and m...

Method of making bleached microcrystalline cellulose

Use of surfactant to treat pulp and improve the incorporation of kr...

Process for producing increased bulk pulp fibers, pulp fibers obtai...

Method for delignifying and bleaching pulp

Low viscosity kraft fiber having reduced yellowing properties and m...

Methods of producing a paper product

Methods of producing a paper product

Use of surfactant to treat pulp and improve the incorporation of kr...

Product and processes from an integrated forest biorefinery

Product and processes from an integrated forest biorefinery

High brightness pulps from lignin rich waste papers

Method of treating liquid flows at a chemical pulp mill

Product and processes from an integrated forest biorefinery

Apparatus and method for washing pulps

Alkaline extraction stages comprising xylanase

Method of xylanase treatment in a chlorine dioxide bleaching sequence

Process for high temperature peroxide bleaching of pulp with cool d...

Patents Applicationslast 30 patents

METHOD FOR BLEACHING PULP FROM RECYCLED TEXTILE MATERIAL

SHORT-SEQUENCE ECF BLEACHING PROCESS X/Z/D-EOP-D OR X/D/Z-EOP-D FOR...

PROCESS AND APPARATUS FOR PRODUCING BLEACHED CELLULOSE

High Efficiency Fiber Bleaching Process

Oxygen Treatment of High Kappa Fibers

NOVEL DISSOLVING WOOD PULPS AND METHODS OF MAKING AND USING THE SAME

METHOD FOR PRODUCING BLEACHED WOOD FIBRE MATERIAL

High Efficiency Fiber Bleaching Process

METHOD FOR PREPARING DISSOLVING PULP BY TCF BLEACHING OF POPLAR KP

Method For Preparing Dissolving Pulp By Totally Chlorine-Free Bleac...

LOW VISCOSITY KRAFT FIBER HAVING REDUCED YELLOWING PROPERTIES AND M...

METHOD FOR BLEACHING PAPER PULP

NOVEL DISSOLVING WOOD PULPS AND METHODS OF MAKING AND USING THE SAME

SELECTIVE REMOVAL OF K+ AND CL- FROM RECOVERY BOILER ELECTROSTATIC...

NOVEL CELLULOSE COMPOSITE MATERIALS AND METHODS OF MAKING AND USING...

LOW VISCOSITY KRAFT FIBER HAVING REDUCED YELLOWING PROPERTIES AND M...

METHODS OF PRODUCING A PAPER PRODUCT

METHOD FOR PRODUCING BLEACHED WOOD FIBRE MATERIAL

MODIFIED CELLULOSE FROM CHEMICAL FIBER AND METHODS OF MAKING AND US...

PROCESS FOR PRODUCING INCREASED BULK PULP FIBERS, PULP FIBERS OBTAI...

METHOD OF MAKING BLEACHED MICROCRYSTALLINE CELLULOSE

METHODS OF PRODUCING A PAPER PRODUCT

LOW VISCOSITY KRAFT FIBER HAVING REDUCED YELLOWING PROPERTIES AND M...

PRODUCT AND PROCESSES FROM AN INTEGRATED FOREST BIOREFINERY

PRODUCT AND PROCESSES FROM AN INTEGRATED FOREST BIOREFINERY

METHOD OF TREATING LIQUID FLOWS AT A CHEMICAL PULP MILL

High Brightness Pulps From Lignin Rich Waste Papers

Apparatus and Method for Washing Pulps

MULTI-STEP PULP BLEACHING

Treatment of cellulose during bleaching with agent capable of reduc...