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After-treatment of cellulose pulp
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Industry
CPC
D21C9/00
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
D
TEXTILES PAPER
D21
Papermaking
D21C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS APPARATUS THEREFOR
Current Industry
D21C9/00
After-treatment of cellulose pulp
Sub Industries
D21C9/001
Modification of pulp properties
D21C9/002
by chemical means; preparation of dewatered pulp
D21C9/004
inorganic compounds
D21C9/005
organic compounds
D21C9/007
by mechanical or physical means
D21C9/008
Prevention of corrosion or formation of deposits on pulp-treating equipment
D21C9/02
Washing; Displacing cooking or pulp-treating liquors contained in the pulp by fluids
D21C9/04
in diffusers; Washing of pulp of fluid consistency without substantially thickening
D21C9/06
in filters; Washing of concentrated pulp
D21C9/08
Removal of fats, resins, pitch or waxes; Chemical or physical purification
D21C9/083
with inorganic compounds
D21C9/086
with organic compounds or compositions comprising organic compounds
D21C9/10
Bleaching; Apparatus therefor
D21C9/1005
Pretreatment of the pulp
D21C9/101
in solvent medium
D21C9/1015
with use of means other than pressure, temperature
D21C9/1021
Electrochemical processes
D21C9/1026
Other features in bleaching processes
D21C9/1031
Pulse, dynamic, displacement processes
D21C9/1036
Use of compounds accelerating or improving the efficiency of the processes
D21C9/1042
Use of chelating agents
D21C9/1047
Conserving the bleached pulp
D21C9/1052
Controlling the process
D21C9/1057
Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
D21C9/1063
with compounds not otherwise provided for
D21C9/1068
with O2
D21C9/1073
with O3
D21C9/1078
with Mn-containing compounds
D21C9/1084
with reducing compounds
D21C9/1089
with dithionites
D21C9/1094
with H2
D21C9/12
with halogens or halogen-containing compounds
D21C9/123
with Cl2O
D21C9/126
with perhalogeno compounds
D21C9/14
with ClO2 or chlorites
D21C9/142
with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
D21C9/144
with ClO2/Cl2 and other bleaching agents in a multistage process
D21C9/147
with oxygen or its allotropic modifications
D21C9/153
with ozone
D21C9/16
with per compounds
D21C9/163
with peroxides
D21C9/166
with peracids
D21C9/18
De-watering Elimination of cooking or pulp-treating liquors from the pulp
D21C9/185
comprising at least one step where the pulp is suspended in a gaseous medium
Industries
Overview
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Combination approach to delignification of biomass under ambient co...
Patent number
11,982,052
Issue date
May 14, 2024
SixRing Inc.
Clay Purdy
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Rotary drum vacuum filter with a throttling valve
Patent number
11,980,837
Issue date
May 14, 2024
Valmet AB
Åke Sundström
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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
Paper filler composition
Patent number
11,970,817
Issue date
Apr 30, 2024
FIBERLEAN TECHNOLOGIES LIMITED
John Claude Husband
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Tissue products comprising crosslinked fibers
Patent number
11,970,819
Issue date
Apr 30, 2024
Stephen M. Lindsay
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
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
Treated pulp and methods of making and using same
Patent number
11,932,990
Issue date
Mar 19, 2024
International Paper Company
Andre Stephan Hajnal
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Screw feeder
Patent number
11,919,269
Issue date
Mar 5, 2024
Valmet AB
Francois Lambert
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Preparation method and application of multifunctional intelligent c...
Patent number
11,920,305
Issue date
Mar 5, 2024
Northeast Forestry University
Lijuan Wang
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Method for treating a fibrous material comprising nanocellulose wit...
Patent number
11,920,297
Issue date
Mar 5, 2024
Stora Enso Oyj
Isto Heiskanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Advanced processing methods to produce high protein feeds from dry...
Patent number
11,910,811
Issue date
Feb 27, 2024
ICM, Inc.
Charles C Gallop
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information
Patent Grant
Feed optimization technology
Patent number
11,910,810
Issue date
Feb 27, 2024
ICM, Inc.
Charles C Gallop
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information
Patent Grant
Approach to biomass delignification
Patent number
11,905,656
Issue date
Feb 20, 2024
SixRing Inc.
Clay Purdy
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Solvent-based processes for producing nanocellulose, and compositio...
Patent number
11,905,341
Issue date
Feb 20, 2024
GranBio Intellectual Property Holdings, LLC
Kimberly Nelson
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Porphyrazines as efficient, catalytic and scalable method to produc...
Patent number
11,897,764
Issue date
Feb 13, 2024
The Trustees of Princeton University
John T. Groves
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Processes, methods, and systems for chemo-mechanical cellular explo...
Patent number
11,885,069
Issue date
Jan 30, 2024
IFG Technologies, LLC
Timothy Wagler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing softwood-derived pulp fibers for paper and sof...
Patent number
11,879,210
Issue date
Jan 23, 2024
Unicharm Corporation
Takeshi Bandou
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for predicting or controlling microbial status of a paper or...
Patent number
11,859,347
Issue date
Jan 2, 2024
Kemira Oyj
Marko Kolari
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Inline dilution of microfibrillated cellulose
Patent number
11,851,818
Issue date
Dec 26, 2023
Borregaard AS
Anne Opstad
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Efficient methods and compositions for recovery of products from or...
Patent number
11,851,815
Issue date
Dec 26, 2023
Pierson Capital Environmental (Beijing) Limited
Feng Ling
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Bleaching trichomes to remove proteins
Patent number
11,846,068
Issue date
Dec 19, 2023
The Procter & Gamble Company
Phillip Richard Green
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
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
Oleophilic and hydrophobic nanocellulose materials
Patent number
11,827,771
Issue date
Nov 28, 2023
GranBio Intellectual Property Holdings, LLC
Theodora Retsina
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
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
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
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
Cellulose filament-stabilized Pickering emulsions
Patent number
11,753,770
Issue date
Sep 12, 2023
Fpinnovations
Wadood Yasser Hamad
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING PRODUCTS BASED ON NON-WOODY BIOMASS AS RAW MAT...
Publication number
20240175206
Publication date
May 30, 2024
TECHNISCHE UNIVERSITAT WIEN
Anton FRIEDL
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information
Patent Application
METHOD AND APPARATUS FOR TREATING MIXTURES OF LIQUIDS AND SOLIDS
Publication number
20240167224
Publication date
May 23, 2024
Matias Titoff
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHOD FOR FRACTIONATION OF HIGHLY REFINED CELLULOSE
Publication number
20240141588
Publication date
May 2, 2024
STORA ENSO OYJ
Isto Heiskanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESSES, METHODS, AND SYSTEMS FOR CHEMO-MECHANICAL CELLULAR EXPLO...
Publication number
20240141587
Publication date
May 2, 2024
Timothy Wagler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
KNEADER MIXER FOR PROCESSING A TRANSFER MIXTURE INTO A MOULDING SOL...
Publication number
20240076832
Publication date
Mar 7, 2024
List Technology AG
Manuel Steiner
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING PRODUCTS BASED ON WOOD AS A RAW MATERIAL
Publication number
20240076831
Publication date
Mar 7, 2024
MM BOARD & PAPER GMBH
Anton FRIEDL
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
THIN FILM EVAPORATOR, AND METHOD FOR PRODUCING A TRANSFER MIXTURE
Publication number
20240075403
Publication date
Mar 7, 2024
List Technology AG
Manuel Steiner
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
Bleaching Trichomes to Remove Proteins
Publication number
20240052567
Publication date
Feb 15, 2024
The Procter & Gamble Company
Phillip Richard Green
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
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
METHOD FOR REDUCING AMOUNT OF BACTERIAL ENDOSPORES IN AN AQUEOUS FI...
Publication number
20240018726
Publication date
Jan 18, 2024
KEMIRA OYJ
Marko KOLARI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
DISPERSIBLE NON-WOOD PULP
Publication number
20240003087
Publication date
Jan 4, 2024
Kimberly-Clark Worldwide, Inc.
David J. Paulson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD OF CONTROLLING THE DRYING OF CELLULOSE PULP IN A DRYING STEP...
Publication number
20230407567
Publication date
Dec 21, 2023
ANDRITZ TECHNOLOGY AND ASSET MANAGEMENT GMBH
Ola LARSSON
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
MODIFIED SULFURIC ACID AND USES THEREOF
Publication number
20230382852
Publication date
Nov 30, 2023
SixRing Inc.
Clay PURDY
C01 - INORGANIC CHEMISTRY
Information
Patent Application
REDUCED FURFURAL CONTENT IN POLYACRYLIC ACID CROSSLINKED CELLULOSE...
Publication number
20230383461
Publication date
Nov 30, 2023
International Paper Company
Angel Stoyanov
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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
CELLULOSE PROCESSING
Publication number
20230357542
Publication date
Nov 9, 2023
Coöperatie Koninklijke Cosun U.A.
Conrardus Hubertus Joseph THEEUWEN
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
ADVANCED PROCESSING METHODS TO PRODUCE HIGH PROTEIN FEEDS FROM DRY...
Publication number
20230345972
Publication date
Nov 2, 2023
ICM, Inc.
Charles C. Gallop
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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
OXIDIZED CELLULOSE MATERIALS
Publication number
20230332358
Publication date
Oct 19, 2023
GP Cellulose GMbH
Charles E. Courchene
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SELECTIVELY DEPOLYMERIZING CELLULOSIC MATERIALS FOR USE AS THERMAL...
Publication number
20230332352
Publication date
Oct 19, 2023
DTE Materials Incorporated
Tanner Jolly
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Application
REDUCTION OF LEACHABLE BETA-GLUCAN LEVELS FROM CELLULOSE-CONTAINING...
Publication number
20230321574
Publication date
Oct 12, 2023
EMD Millipore Corporation
Akshat Gupta
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Application
METHOD FOR SEPARATING BIOMASS COMPONENTS BY TERNARY SYSTEM
Publication number
20230323597
Publication date
Oct 12, 2023
QILU UNIVERSITY OF TECHNOLOGY
Yongchao Zhang
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
DRUM WASHER WITH GRAVITY ASSIST DRAINAGE
Publication number
20230302384
Publication date
Sep 28, 2023
Andritz Inc.
Lindsay Brandino Rawls
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL