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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
D21C7/00
Digesters
Sub Industries
D21C7/02
Rotary digesters
D21C7/04
Linings
D21C7/06
Feeding devices
D21C7/08
Discharge devices
D21C7/10
Heating devices
D21C7/12
Devices for regulating or controlling
D21C7/14
Means for circulating the lye
D21C7/16
Safety devices
Industries
Overview
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Reactor vessel for biomass material
Patent number
12,005,418
Issue date
Jun 11, 2024
Valmet AB
Stefan Mellander
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method of feeding wood chips to a prehydrolysis reactor
Patent number
11,993,895
Issue date
May 28, 2024
Andritz Oy
Marco Andrade
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Health assessment of a mechanical system
Patent number
11,976,419
Issue date
May 7, 2024
Schneider Electric Systems USA, Inc.
Peter Francino
G07 - CHECKING-DEVICES
Information
Patent Grant
Dual surfactant digester additive composition and a method for enha...
Patent number
11,970,816
Issue date
Apr 30, 2024
Chemstone, Inc.
Michael M. Blackstone
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
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
Feeding arrangement
Patent number
11,879,209
Issue date
Jan 23, 2024
Valmet AB
Robert Wahlberg
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
System for treatment of a biomass material and a method for connect...
Patent number
11,674,264
Issue date
Jun 13, 2023
Valmet AB
Patrik Pettersson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
System and chip chute for feeding comminuted cellulosic material
Patent number
11,655,588
Issue date
May 23, 2023
Valmet AB
Jonas Saetheråsen
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
Process for obtaining cellulose
Patent number
11,512,426
Issue date
Nov 29, 2022
Rainer Fülling
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
High consistency re-pulping method, apparatus and absorbent product...
Patent number
11,486,089
Issue date
Nov 1, 2022
GPCP IP Holdings LLC
Jeffrey A. Lee
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for cooling and detoxifying biomass
Patent number
11,485,988
Issue date
Nov 1, 2022
Valmet AB
Peter Björklund
C13 - SUGAR INDUSTRY
Information
Patent Grant
Method for cooling and detoxifying biomass
Patent number
11,485,989
Issue date
Nov 1, 2022
Valmet AB
Peter Björklund
C13 - SUGAR INDUSTRY
Information
Patent Grant
Method and apparatus for burning odor gas
Patent number
11,486,090
Issue date
Nov 1, 2022
VALMET TECHNOLOGIES OY
Matti Kytö
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Vent stack temperature as a feedforward variable for smelt dissolvi...
Patent number
11,441,265
Issue date
Sep 13, 2022
Fpinnovations
Bruce James Allison
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Outlet system for transporting comminuted lignocellulosic material...
Patent number
11,371,185
Issue date
Jun 28, 2022
Valmet AB
Roger Jansson
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Method and system for treating biomass
Patent number
11,371,186
Issue date
Jun 28, 2022
Valmet AB
Francois Lambert
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Methods of staging, processing, and transporting biomasses
Patent number
11,352,745
Issue date
Jun 7, 2022
MATERA, LLC
Timothy J. Richter
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Processes and systems for the pulping of lignocellulosic materials
Patent number
11,352,746
Issue date
Jun 7, 2022
ANDRITZ INC.
Antti Luukkonen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process and system for producing pulp, energy, and bioderivatives f...
Patent number
11,305,254
Issue date
Apr 19, 2022
Circ, LLC
Sandeep Kumar
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for separating lignin from ligno-cellulosic material
Patent number
11,306,434
Issue date
Apr 19, 2022
King Abdulaziz University
Sherif Shawki Zaki Hindi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing parenchymal cell cellulose
Patent number
11,299,852
Issue date
Apr 12, 2022
BETULIUM OY
Antti Laukkanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Screen assembly for pulp digesters and other treatment vessels in p...
Patent number
11,255,046
Issue date
Feb 22, 2022
Andritz Oy
Henri Kesseli
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and a system for production of high molecular weight lignin
Patent number
11,186,948
Issue date
Nov 30, 2021
FIBRATECH PTE. LTD
Matti Kurki
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Method for impregnating biomass and device for impregnating biomass
Patent number
11,186,949
Issue date
Nov 30, 2021
Valmet AB
Andreas Averheim
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Biomass pulp digester
Patent number
11,162,218
Issue date
Nov 2, 2021
Robert Clayton
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for recovery of cellulosic material from waste ligno-cellulo...
Patent number
11,136,715
Issue date
Oct 5, 2021
King Abdulaziz University
Sherif Shawki Zaki Hindi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Systems and methods to produce treated cellulose filaments and ther...
Patent number
11,104,770
Issue date
Aug 31, 2021
KRUGER INC.
Abdou Khadri Diallo
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dual surfactant digester additive composition and a method for enha...
Patent number
11,091,875
Issue date
Aug 17, 2021
Chemstone, Inc.
Michael M. Blackstone
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
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
Optimization Of Chemical Consumption in Biomass Delignification
Publication number
20240052566
Publication date
Feb 15, 2024
SixRing Inc.
Tenzin LEKSMON
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
APPARATUSES, METHODS AND SYSTEMS FOR YIELD INCREASE IN A KRAFT COOK...
Publication number
20230374730
Publication date
Nov 23, 2023
Bracell Bahia Specialty Cellulose SA
Vinicius de Oliveira Salaroli
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SYSTEM AND CHIP CHUTE FOR FEEDING COMMINUTED CELLULOSIC MATERIAL
Publication number
20230243096
Publication date
Aug 3, 2023
VALMET AB
Jonas SAETHERÅSEN
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
ARRANGEMENT AND METHOD FOR PRETREATMENT OF BIOMASS
Publication number
20230098986
Publication date
Mar 30, 2023
SEKAB E-TECHNOLOGY AB
Anders Sjöblom
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
ADJUSTING A HIGH PRESSURE FEEDER BASED ON FLUID LEAKAGE
Publication number
20230081586
Publication date
Mar 16, 2023
Andritz Inc.
Keith Vogel
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
PROCESS FOR PRODUCING REFINED COTTON WITH HIGH POLYMERIZATION DEGREE
Publication number
20230046123
Publication date
Feb 16, 2023
HUBEI JINHANJIANG REFINED COTTON CO., LTD.
Hangxu ZHOU
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HEALTH ASSESSMENT OF A MECHANICAL SYSTEM
Publication number
20220316134
Publication date
Oct 6, 2022
Schneider Electric Systems USA, Inc.
Peter Francino
G07 - CHECKING-DEVICES
Information
Patent Application
RAGGER SYSTEMS AND METHODS FOR REMOVING SOLID DEBRIS FROM PULPING P...
Publication number
20220259802
Publication date
Aug 18, 2022
Kadant Black Clawson LLC
Christopher Demler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method and Apparatus for Treating Lignocellulosic Material
Publication number
20220195667
Publication date
Jun 23, 2022
Sustainable Fiber Technologies, LLC
Tyler Campbell
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING PARENCHYMAL CELL CELLULOSE
Publication number
20220162799
Publication date
May 26, 2022
BETULIUM OY
Antti LAUKKANEN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Pulping System Ragger with Reject Handling Control
Publication number
20220154398
Publication date
May 19, 2022
VALMET TECHNOLOGIES OY
Timo Hautaniemi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method for cooling and detoxifying biomass
Publication number
20220154233
Publication date
May 19, 2022
VALMET AB
Peter Björklund
C13 - SUGAR INDUSTRY
Information
Patent Application
ARRANGEMENT AND METHOD FOR DEGASSING A PUMP
Publication number
20220025578
Publication date
Jan 27, 2022
ANDRITZ OY
Ronny GEIGER
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
AN ARRANGEMENT FOR INSTALLATION OF MONITORING SENSORS OF A TREATMEN...
Publication number
20220018067
Publication date
Jan 20, 2022
ANDRITZ OY
Aki MUHLI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD OF FEEDING WOOD CHIPS TO A PREHYDROLYSIS REACTOR
Publication number
20220002944
Publication date
Jan 6, 2022
ANDRITZ OY
Marco ANDRADE
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
REACTOR DISCHARGE SCREW
Publication number
20210404116
Publication date
Dec 30, 2021
VALMET AB
Örjan AHLGREN
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
METHOD FOR SEPARATING LIGNIN FROM LIGNO-CELLULOSIC MATERIAL
Publication number
20210381163
Publication date
Dec 9, 2021
KING ABDULAZIZ UNIVERSITY
Sherif Shawki Zaki Hindi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Dual Surfactant Digester Additive Composition and a Method for Enha...
Publication number
20210372048
Publication date
Dec 2, 2021
CHEMSTONE, INC.
Michael M. Blackstone
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
OUTLET SYSTEM FOR TRANSPORTING COMMINUTED LIGNOCELLULOSIC MATERIAL...
Publication number
20210309449
Publication date
Oct 7, 2021
VALMET AB
Roger JANSSON
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR RECOVERY OF CELLULOSIC MATERIAL FROM WASTE LIGNO-CELLULO...
Publication number
20210269973
Publication date
Sep 2, 2021
KING ABDULAZIZ UNIVERSITY
Sherif Shawki Zaki Hindi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
REACTOR DISCHARGE
Publication number
20210254281
Publication date
Aug 19, 2021
VALMET AB
Olof MELANDER
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
A REACTOR VESSEL FOR BIOMASS MATERIAL
Publication number
20210237024
Publication date
Aug 5, 2021
VALMET AB
Stefan MELLANDER
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
ARRANGEMENT AND SYSTEM FOR A TREATMENT PROCESS
Publication number
20210230801
Publication date
Jul 29, 2021
VALMET AB
Francois LAMBERT
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
USED PAPER DIAPER PROCESSING METHOD AND APPARATUS
Publication number
20210222363
Publication date
Jul 22, 2021
PANASONIC CORPORATION
Genichiro MATSUDA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method for cooling and detoxifying biomass
Publication number
20210207185
Publication date
Jul 8, 2021
VALMET AB
Peter Björklund
C13 - SUGAR INDUSTRY
Information
Patent Application
A SCREW FEEDER
Publication number
20210206131
Publication date
Jul 8, 2021
VALMET AB
Francois LAMBERT
B30 - PRESSES
Information
Patent Application
FEEDING ARRANGEMENT
Publication number
20210189647
Publication date
Jun 24, 2021
VALMET AB
Robert WAHLBERG
B30 - PRESSES