Bleaching; Apparatus therefor

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CPC
D21C9/10

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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 D21C9/00After-treatment of cellulose pulp

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D21C9/10Bleaching; Apparatus therefor

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Patents Grantslast 30 patents

Information Patent Grant
Methods and systems for processing mixed textile feedstock, isolati...
- Patent number 12,319,790
- Issue date Jun 3, 2025
- EVRNU, SPC
- Stacy Flynn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for producing cellulose pulp, cellulose pulp and use thereof...
- Patent number 12,305,332
- Issue date May 20, 2025
- Suzano S.A.
- Otávio Mambrim Filho
- 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
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
Methods of microbial control
- Patent number 12,215,460
- Issue date Feb 4, 2025
- Clean Chemistry, Inc.
- Wayne E. Buschmann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Dispersible non-wood pulp
- Patent number 12,215,464
- Issue date Feb 4, 2025
- Kimberly-Clark Worldwide, Inc.
- David J. Paulson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Sulfite-based processes for producing nanocellulose, and compositio...
- Patent number 12,188,181
- Issue date Jan 7, 2025
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Arrangement and method for degassing a pump
- Patent number 12,173,451
- Issue date Dec 24, 2024
- Andritz Oy
- Ronny Geiger
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and apparatus for treating lignocellulosic material
- Patent number 12,163,283
- Issue date Dec 10, 2024
- Sustainable Fiber Technologies, LLC
- Tyler Campbell
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
Common preparation of lignocellulosic feedstock and a product conta...
- Patent number 12,116,729
- Issue date Oct 15, 2024
- Lenzing Aktiengesellschaft
- Richard Herchl
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Oxygen bleaching method of pulp
- Patent number 12,104,321
- Issue date Oct 1, 2024
- BEIJING FORESTRY UNIVERSITY
- Feng Xu
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
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
Crystalline cellulose reinforced cement
- Patent number 12,017,955
- Issue date Jun 25, 2024
- Sean McAlpine
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Processes and systems for producing nanocellulose from old corrugat...
- Patent number 12,018,432
- Issue date Jun 25, 2024
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- 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
Processes and apparatus for producing nanocellulose, and compositio...
- Patent number 11,932,706
- Issue date Mar 19, 2024
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- C07 - ORGANIC CHEMISTRY
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
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
Methods of pulp fiber treatment
- Patent number 11,795,615
- Issue date Oct 24, 2023
- Clean Chemistry, Inc.
- Wayne E. Buschmann
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Far superior oxidation catalysts based on macrocyclic compounds
- Patent number 11,772,085
- Issue date Oct 3, 2023
- Carnegie Mellon University
- Terrence James Collins
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Enhanced peroxygen stability in multi-dispense TAED-containing pero...
- Patent number 11,731,889
- Issue date Aug 22, 2023
- Ecolab USA Inc.
- David Dotzauer
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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
Modified cellulose from chemical kraft fiber and methods of making...
- Patent number RE49570
- Issue date Jul 4, 2023
- GP Cellulose GmbH
- Arthur J. Nonni
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
Odor control pulp composition
- Patent number 11,613,849
- Issue date Mar 28, 2023
- International Paper Company
- Peter M. Froass
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process of producing nanofibrillated cellulose with low energy cons...
- Patent number 11,598,049
- Issue date Mar 7, 2023
- SUZANO S.A.
- Heloisa Ogushi Romeiro Ramires
- 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

Patents Applicationslast 30 patents

Information Patent Application
HIGH BRIGHTNESS NON-WOOD PULP
- Publication number 20250146219
- Publication date May 8, 2025
- Kimberly-Clark Worldwide, Inc.
- Thomas G. Shannon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR DISTRUBTING CHEMICALS IN DELIGNIFICTION STAGES OF PULP B...
- Publication number 20250122668
- Publication date Apr 17, 2025
- Andritz Inc.
- Richard Van Fleet
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISPERSIBLE NON-WOOD PULP
- Publication number 20250116065
- Publication date Apr 10, 2025
- Kimberly-Clark Worldwide, Inc.
- David J. Paulson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ARRANGEMENT AND METHOD FOR DEGASSING A PUMP
- Publication number 20250101681
- Publication date Mar 27, 2025
- ANDRITZ OY
- Ronny GEIGER
- 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
PROCESSES AND SYSTEMS FOR PRODUCING NANOCELLULOSE FROM OLD CORRUGAT...
- Publication number 20250043508
- Publication date Feb 6, 2025
- GRANBIO INTELLECTUAL PROPERTY HOLDINGS, LLC
- Kimberly NELSON
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
A method, uses of the same, a pulp composition, and a system
- Publication number 20250027270
- Publication date Jan 23, 2025
- METSÄ BOARD OYJ
- Mikko Nikamaa
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Xylanase Variants
- Publication number 20250019682
- Publication date Jan 16, 2025
- AB Enzymes OY
- Marja PALOHEIMO
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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
CIGARETTE WRAPPER USING NANOCELLULOSE FILM
- Publication number 20240365842
- Publication date Nov 7, 2024
- KT&G Corporation
- Sungmin MOON
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Crystalline Cellulose Reinforced Cement
- Publication number 20240336526
- Publication date Oct 10, 2024
- NANO-GREEN BIOREFINERIES INC.
- Sean MCALPINE
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SCALE INHIBITION FOR PULP DIGESTERS
- Publication number 20240247439
- Publication date Jul 25, 2024
- ECOLAB USA INC.
- John Matthew CHUDOMEL
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...
- Publication number 20240247081
- Publication date Jul 25, 2024
- GranBio Intellectual Property Holdings, LLC
- Kimberly NELSON
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
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
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
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
CROSSLINKED KRAFT PULP COMPOSITIONS AND METHOD
- Publication number 20230383467
- Publication date Nov 30, 2023
- International Paper Company
- Mengkui Luo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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 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
OXYGEN BLEACHING METHOD OF PULP
- Publication number 20230272580
- Publication date Aug 31, 2023
- Beijing Forestry University
- Feng XU
- 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
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
METHODS AND SYSTEMS FOR PROCESSING MIXED TEXTILE FEEDSTOCK, ISOLATI...
- Publication number 20230124761
- Publication date Apr 20, 2023
- EVRNU, SPC
- Stacy Flynn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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
COLLAPSIBLE ENGAGEMENT MECHANISM
- Publication number 20230016500
- Publication date Jan 19, 2023
- Jordon Peter Marshall
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
ODOR CONTROL PULP COMPOSITION
- Publication number 20230009849
- Publication date Jan 12, 2023
- International Paper Company
- PETER M. FROASS
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PULP, SLURRY, SHEET, LAMINATE, AND METHOD FOR PRODUCING PULP
- Publication number 20220372707
- Publication date Nov 24, 2022
- OJI HOLDINGS CORPORATION
- Mengchen Zhao
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
CELLULOSE MATERIAL PLASTICIZATION AND VISCOSITY CONTROLLED CELLULOS...
- Publication number 20220298725
- Publication date Sep 22, 2022
- UPM-Kymmene Corporation
- Pasi VIRTANEN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR MANUFACTURING BLEACHED PULP, FEEDSTOCK, AND PACKAGING SY...
- Publication number 20220267957
- Publication date Aug 25, 2022
- WestRock MWV, LLC
- Fritz G. Paulsen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Bleaching; Apparatus therefor

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Methods and systems for processing mixed textile feedstock, isolati...

Method for producing cellulose pulp, cellulose pulp and use thereof...

Oxygen treatment of high kappa fibers

High brightness non-wood pulp

Methods of microbial control

Dispersible non-wood pulp

Sulfite-based processes for producing nanocellulose, and compositio...

Arrangement and method for degassing a pump

Method and apparatus for treating lignocellulosic material

Non-wood pulp having high brightness and low debris

Common preparation of lignocellulosic feedstock and a product conta...

Oxygen bleaching method of pulp

Processes for producing nanocellulose, and nanocellulose compositio...

Nanocellulose production co-located at a pulp and paper mill

Crystalline cellulose reinforced cement

Processes and systems for producing nanocellulose from old corrugat...

Continuous process for production of cellulose pulp from grass-like...

Processes and apparatus for producing nanocellulose, and compositio...

High efficiency fiber bleaching process

Nanolignocellulose compositions and processes to produce these comp...

Methods of pulp fiber treatment

Far superior oxidation catalysts based on macrocyclic compounds

Enhanced peroxygen stability in multi-dispense TAED-containing pero...

Method for producing bleached wood fibre material

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

Dissolving wood pulps and methods of making and using the same

Method for preparing dissolving pulp by TCF bleaching of poplar KP

Odor control pulp composition

Process of producing nanofibrillated cellulose with low energy cons...

High efficiency fiber bleaching process

Patents Applicationslast 30 patents

HIGH BRIGHTNESS NON-WOOD PULP

METHOD FOR DISTRUBTING CHEMICALS IN DELIGNIFICTION STAGES OF PULP B...

DISPERSIBLE NON-WOOD PULP

ARRANGEMENT AND METHOD FOR DEGASSING A PUMP

NANOCELLULOSE PRODUCTION CO-LOCATED AT A PULP AND PAPER MILL

PROCESSES AND SYSTEMS FOR PRODUCING NANOCELLULOSE FROM OLD CORRUGAT...

A method, uses of the same, a pulp composition, and a system

Xylanase Variants

NON-WOOD PULP HAVING HIGH BRIGHTNESS AND LOW DEBRIS

CIGARETTE WRAPPER USING NANOCELLULOSE FILM

Crystalline Cellulose Reinforced Cement

SCALE INHIBITION FOR PULP DIGESTERS

PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...

UPCYCLED CELLULOSIC FIBERS

HIGH BRIGHTNESS NON-WOOD PULP

METHOD FOR BLEACHING PULP FROM RECYCLED TEXTILE MATERIAL

CROSSLINKED KRAFT PULP COMPOSITIONS AND METHOD

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

PROCESS FOR PRODUCTION OF CELLULOSE NANOFIBERS FROM MISCANTHUS X. G...

OXYGEN BLEACHING METHOD OF PULP

HIGH YIELD CHEMICAL PULPING AND BLEACHING PROCESS

PROCESS AND APPARATUS FOR PRODUCING BLEACHED CELLULOSE

High Efficiency Fiber Bleaching Process

METHODS AND SYSTEMS FOR PROCESSING MIXED TEXTILE FEEDSTOCK, ISOLATI...

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

COLLAPSIBLE ENGAGEMENT MECHANISM

ODOR CONTROL PULP COMPOSITION

PULP, SLURRY, SHEET, LAMINATE, AND METHOD FOR PRODUCING PULP

CELLULOSE MATERIAL PLASTICIZATION AND VISCOSITY CONTROLLED CELLULOS...

METHOD FOR MANUFACTURING BLEACHED PULP, FEEDSTOCK, AND PACKAGING SY...