Working-up waste paper

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CPC
D21C5/02

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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 D21C5/00Other processes for obtaining cellulose

Current Industry

D21C5/02Working-up waste paper

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing recycled pulp fibers, and recycled pulp fibers
- Patent number 12,364,629
- Issue date Jul 22, 2025
- Unicharm Corporation
- Takayoshi Konishi
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method for recycling waste aramid-mica composite paper
- Patent number 12,351,982
- Issue date Jul 8, 2025
- SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Zhaoqing Lu
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method for manufacturing bleached pulp from a feedstock comprising...
- Patent number 12,331,462
- Issue date Jun 17, 2025
- WestRock MWV, LLC
- Peter W. Hart
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Polymer coated paper recycling process and composition
- Patent number 12,320,067
- Issue date Jun 3, 2025
- NANOCYCLE TECH INC.
- Meysam Araghi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Oxygen treatment of high kappa fibers
- Patent number 12,286,751
- Issue date Apr 29, 2025
- GPCP IP Holdings LLC
- Kevin M. Holtman
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Preparation method and recyclingmethod for degradable and recyclabl...
- Patent number 12,281,443
- Issue date Apr 22, 2025
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry
- He Liu
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for recovering fiber from screening reject and fine sorting...
- Patent number 12,270,150
- Issue date Apr 8, 2025
- TAIZEN CO., LTD.
- Takefumi Ide
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Papermaking additive compositions and methods and uses thereof
- Patent number 12,258,708
- Issue date Mar 25, 2025
- Neozyme International, Inc.
- Parker Dale
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Paper precoat process
- Patent number 12,247,356
- Issue date Mar 11, 2025
- Xerox Corporation
- Varun Sambhy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process of transforming waste material into useful material
- Patent number 12,241,202
- Issue date Mar 4, 2025
- Bouldin Corporation
- David C. Palmer
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Method of producing inorganic fiber mat and inorganic fiber mat
- Patent number 12,209,339
- Issue date Jan 28, 2025
- Ibiden Co., Ltd.
- Tomohisa Yamazaki
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Grant
Wet pulp material processing machine
- Patent number 12,139,852
- Issue date Nov 12, 2024
- TAIZEN CO., LTD.
- Takefumi Ide
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Nanocellulose production co-located at a pulp and paper mill
- Patent number 12,077,910
- Issue date Sep 3, 2024
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cleaning and depolluting of fibres originating from used cigarette...
- Patent number 12,065,781
- Issue date Aug 20, 2024
- Julien Paque
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
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 manufacturing components from shredded polymer-coated p...
- Patent number 12,012,699
- Issue date Jun 18, 2024
- CHOPVALUE MANUFACTURING LTD
- Dirk Harste
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for producing pulp fibers for cellulose nanofiberization, an...
- Patent number 11,987,932
- Issue date May 21, 2024
- Unicharm Corporation
- Takayoshi Konishi
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Cellulose raw material and method for recycling a cellulose raw mat...
- Patent number 11,976,417
- Issue date May 7, 2024
- Lenzing Aktiengesellschaft
- Richard Herchl
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Starch fixation and retention in recycled fiber systems
- Patent number 11,976,418
- Issue date May 7, 2024
- Kemira Oyj
- Yuping Luo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process of transforming waste material into useful material
- Patent number 11,952,715
- Issue date Apr 9, 2024
- Bouldin Corporation
- David C. Palmer
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Industrial deinking of ink compositions
- Patent number 11,926,752
- Issue date Mar 12, 2024
- Xeikon Manufacturing N.V.
- Geert Gaston Paul Deroover
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Supported toothed plates in a disperser with buttress extending fro...
- Patent number 11,859,344
- Issue date Jan 2, 2024
- ANDRITZ INC.
- Luc Gingras
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Supported toothed plates in a disperser including bridge between te...
- Patent number 11,851,816
- Issue date Dec 26, 2023
- ANDRITZ INC.
- Luc Gingras
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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 evaluating degree of cleanliness of recycled material, m...
- Patent number 11,802,373
- Issue date Oct 31, 2023
- Unicharm Corporation
- Shigeo Imai
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for dispersing or refining of organic material...
- Patent number 11,795,614
- Issue date Oct 24, 2023
- Cellwood Machinery AB
- Stefan Virtanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Papermaking additive compositions and methods and uses thereof
- Patent number 11,773,535
- Issue date Oct 3, 2023
- Neozyme International, Inc.
- Parker Dale
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method for producing recycled pulp fibers by decomposing super abso...
- Patent number 11,771,604
- Issue date Oct 3, 2023
- Unicharm Corporation
- Takayoshi Konishi
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method for producing pulp fibres for saccharification, and aqueous...
- Patent number 11,773,536
- Issue date Oct 3, 2023
- Unicharm Corporation
- Kouichi Yamaki
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method of producing filler
- Patent number 11,753,771
- Issue date Sep 12, 2023
- Stora Enso Oyj
- Elina Skerfe
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR RECYCLING WASTE MATERIAL HAVING PRESHREDDED STEP
- Publication number 20250179731
- Publication date Jun 5, 2025
- Juno LLC
- Trent Moberg
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESS OF TRANSFORMING WASTE MATERIAL INTO USEFUL MATERIAL
- Publication number 20250171957
- Publication date May 29, 2025
- BOULDIN CORPORATION
- David C. Palmer
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Application
RECYCLING OF MIXTURES OF TEXTILES COMPRISING CELLULOSE
- Publication number 20250146218
- Publication date May 8, 2025
- CIRCULOSE AB
- Tahani KALDÉUS
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
INORGANIC FIBER MAT
- Publication number 20250109536
- Publication date Apr 3, 2025
- IBIDEN CO., LTD.
- Tomohisa YAMAZAKI
- D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
Information Patent Application
CRUSHED PIECE SUPPLY DEVICE AND FIBER STRUCTURE MANUFACTURING APPAR...
- Publication number 20250075426
- Publication date Mar 6, 2025
- SEIKO EPSON CORPORATION
- Jun SAKURADA
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NANOCELLULOSE PRODUCTION CO-LOCATED AT A PULP AND PAPER MILL
- Publication number 20250059707
- Publication date Feb 20, 2025
- GRANBIO INTELLECTUAL PROPERTY HOLDINGS, LLC
- Kimberly NELSON
- B82 - NANO-TECHNOLOGY
Information Patent Application
PAPER PRODUCT AND MOLDED ARTICLE
- Publication number 20250034804
- Publication date Jan 30, 2025
- TOPPAN HOLDING INC.
- Sadafumi TACHIKI
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
PHYSICAL REUTILIZATION OF SILICONIZED PAPERS
- Publication number 20250034805
- Publication date Jan 30, 2025
- Evonik Operations GmbH
- Wilfried Knott
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
CELLULOSIC STRUCTURES, METHODS FOR MANUFACTURING CELLULOSIC STRUCTU...
- Publication number 20250003153
- Publication date Jan 2, 2025
- WestRock MWV, LLC
- Steven G. BUSHHOUSE
- B32 - LAYERED PRODUCTS
Information Patent Application
STARCH FIXATION AND RETENTION IN RECYCLED FIBER SYSTEMS
- Publication number 20240376668
- Publication date Nov 14, 2024
- KEMIRA OYJ
- Yuping Luo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
CLEANING AND DEPOLLUTING OF FIBRES ORIGINATING FROM USED CIGARETTE...
- Publication number 20240352672
- Publication date Oct 24, 2024
- Julien PAQUE
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PREPARATION METHOD AND RECYCLINGMETHOD FOR DEGRADABLE AND RECYCLABL...
- Publication number 20240295078
- Publication date Sep 5, 2024
- Institute of Chemical Industry of Forest Products,Chinese Academy of Forestry
- He LIU
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ENZYMATIC TREATMENT METHOD AND SYSTEM FOR FIBROUS CELLULOSIC MATERI...
- Publication number 20240279872
- Publication date Aug 22, 2024
- HONEXT MATERIAL S.L.
- Sebel LEE YUN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
CELLULOSE RAW MATERIAL AND METHOD FOR RECYCLING A CELLULOSE RAW MAT...
- Publication number 20240240399
- Publication date Jul 18, 2024
- LENZING AKTIENGESELLSCHAFT
- Richard Herchl
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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
PROCESS OF TRANSFORMING WASTE MATERIAL INTO USEFUL MATERIAL
- Publication number 20240209570
- Publication date Jun 27, 2024
- BOULDIN CORPORATION
- David C. Palmer
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
METHOD OF MAKING FIRE RETARDANT MATERIALS AND RELATED PRODUCTS
- Publication number 20240191430
- Publication date Jun 13, 2024
- ClLEANFIBER INC..
- Jonathan Strimling
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
RECYCLABLE AND REUSABLE POLLEN PAPER
- Publication number 20240158988
- Publication date May 16, 2024
- Nanyang Technological University
- Nam-Joon CHO
- 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 RECYCLED PULP FIBERS, AND RECYCLED PULP FIBERS
- Publication number 20240050290
- Publication date Feb 15, 2024
- UNICHARM CORPORATION
- Takayoshi Konishi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
UPCYCLED CELLULOSIC FIBERS
- Publication number 20240044080
- Publication date Feb 8, 2024
- GRASIM INDUSTRIES LIMITED
- Sharad Pandharinath Pawar
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SUPPORTED TOOTHED PLATES IN A DISPERSER
- Publication number 20240011221
- Publication date Jan 11, 2024
- Andritz Inc.
- Luc Gingras
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Papermaking Additive Compositions and Methods and Uses Thereof
- Publication number 20240003084
- Publication date Jan 4, 2024
- Neozyme International, Inc.
- Parker Dale
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
A METHOD OF CONTROLLING ENZYMATIC ACTIVITIES AND TOOLS RELATED THERETO
- Publication number 20230220621
- Publication date Jul 13, 2023
- KEMIRA OYJ
- Anu JAAKKOLA
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR THE PRODUCTION OF PAPER PRODUCTS
- Publication number 20230167603
- Publication date Jun 1, 2023
- NOVATRUST SA
- Simone PRIANTE
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR PRODUCING PULP FIBERS FOR CELLULOSE NANOFIBERIZATION, AN...
- Publication number 20230160142
- Publication date May 25, 2023
- UNICHARM CORPORATION
- Takayoshi Konishi
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
STARCH FIXATION AND RETENTION IN RECYCLED FIBER SYSTEMS
- Publication number 20230116374
- Publication date Apr 13, 2023
- KEMIRA OYJ
- Yuping Luo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
CLEANING AND DEPOLLUTING OF FIBRES ORIGINATING FROM USED CIGARETTE...
- Publication number 20230087232
- Publication date Mar 23, 2023
- Julien PAQUE
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
METHOD FOR MANUFACTURING BLEACHED PULP FROM A FEEDSTOCK COMPRISING...
- Publication number 20230073443
- Publication date Mar 9, 2023
- WestRock MWV, LLC
- Peter W. HART
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
WET PULP MATERIAL PROCESSING MACHINE
- Publication number 20230068151
- Publication date Mar 2, 2023
- TAIZEN CO., LTD.
- Takefumi IDE
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Working-up waste paper

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method for producing recycled pulp fibers, and recycled pulp fibers

Method for recycling waste aramid-mica composite paper

Method for manufacturing bleached pulp from a feedstock comprising...

Polymer coated paper recycling process and composition

Oxygen treatment of high kappa fibers

Preparation method and recyclingmethod for degradable and recyclabl...

Method for recovering fiber from screening reject and fine sorting...

Papermaking additive compositions and methods and uses thereof

Paper precoat process

Process of transforming waste material into useful material

Method of producing inorganic fiber mat and inorganic fiber mat

Wet pulp material processing machine

Nanocellulose production co-located at a pulp and paper mill

Cleaning and depolluting of fibres originating from used cigarette...

Lignocellulosic composites prepared with aqueous alkaline and urea...

Process for manufacturing components from shredded polymer-coated p...

Method for producing pulp fibers for cellulose nanofiberization, an...

Cellulose raw material and method for recycling a cellulose raw mat...

Starch fixation and retention in recycled fiber systems

Process of transforming waste material into useful material

Industrial deinking of ink compositions

Supported toothed plates in a disperser with buttress extending fro...

Supported toothed plates in a disperser including bridge between te...

High efficiency fiber bleaching process

Method for evaluating degree of cleanliness of recycled material, m...

Apparatus and method for dispersing or refining of organic material...

Papermaking additive compositions and methods and uses thereof

Method for producing recycled pulp fibers by decomposing super abso...

Method for producing pulp fibres for saccharification, and aqueous...

Method of producing filler

Patents Applicationslast 30 patents

SYSTEM AND METHOD FOR RECYCLING WASTE MATERIAL HAVING PRESHREDDED STEP

PROCESS OF TRANSFORMING WASTE MATERIAL INTO USEFUL MATERIAL

RECYCLING OF MIXTURES OF TEXTILES COMPRISING CELLULOSE

INORGANIC FIBER MAT

CRUSHED PIECE SUPPLY DEVICE AND FIBER STRUCTURE MANUFACTURING APPAR...

NANOCELLULOSE PRODUCTION CO-LOCATED AT A PULP AND PAPER MILL

PAPER PRODUCT AND MOLDED ARTICLE

PHYSICAL REUTILIZATION OF SILICONIZED PAPERS

CELLULOSIC STRUCTURES, METHODS FOR MANUFACTURING CELLULOSIC STRUCTU...

STARCH FIXATION AND RETENTION IN RECYCLED FIBER SYSTEMS

CLEANING AND DEPOLLUTING OF FIBRES ORIGINATING FROM USED CIGARETTE...

PREPARATION METHOD AND RECYCLINGMETHOD FOR DEGRADABLE AND RECYCLABL...

ENZYMATIC TREATMENT METHOD AND SYSTEM FOR FIBROUS CELLULOSIC MATERI...

CELLULOSE RAW MATERIAL AND METHOD FOR RECYCLING A CELLULOSE RAW MAT...

Process and System for Producing Pulp, Energy, and Bioderivatives f...

PROCESS OF TRANSFORMING WASTE MATERIAL INTO USEFUL MATERIAL

METHOD OF MAKING FIRE RETARDANT MATERIALS AND RELATED PRODUCTS

RECYCLABLE AND REUSABLE POLLEN PAPER

Process and System for Producing Pulp, Energy, and Bioderivatives f...

METHOD FOR PRODUCING RECYCLED PULP FIBERS, AND RECYCLED PULP FIBERS

UPCYCLED CELLULOSIC FIBERS

SUPPORTED TOOTHED PLATES IN A DISPERSER

Papermaking Additive Compositions and Methods and Uses Thereof

A METHOD OF CONTROLLING ENZYMATIC ACTIVITIES AND TOOLS RELATED THERETO

METHOD FOR THE PRODUCTION OF PAPER PRODUCTS

METHOD FOR PRODUCING PULP FIBERS FOR CELLULOSE NANOFIBERIZATION, AN...

STARCH FIXATION AND RETENTION IN RECYCLED FIBER SYSTEMS

CLEANING AND DEPOLLUTING OF FIBRES ORIGINATING FROM USED CIGARETTE...

METHOD FOR MANUFACTURING BLEACHED PULP FROM A FEEDSTOCK COMPRISING...

WET PULP MATERIAL PROCESSING MACHINE