ClassID:

126295

D21B1/021 - CPC Classification

Classification description:

Fibrous raw materials or their mechanical treatment; Pretreatment of the raw materials by chemical or physical means by chemical means

Recent Application in this class:
#1
20250027270
2025-01-23

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

#2
20250011584
2025-01-09

NANOCELLULOSE-POLYMER COMPOSITES, AND PROCESSES FOR PRODUCING THEM

#3
20250003150
2025-01-02

SYSTEM AND METHOD FOR ISOLATING LIGAN AND SYNTHESIZING NANOCELLULOSE FROM LIGNOCELLULLOSIC MATERIALS

#4
20240410109
2024-12-12

A METHOD FOR CHEMICAL PULP PRODUCTION IN A MULTI-STAGE PROCESS

#5
20240295074
2024-09-05

METHODS FOR PRODUCING PULP AND PAPER PRODUCTS FROM PLANTS HAVING BAST AND HURD FIBERS

#6
20240141587
2024-05-02

PROCESSES, METHODS, AND SYSTEMS FOR CHEMO-MECHANICAL CELLULAR EXPLOSION AND SOLID AND LIQUID PRODUCTS MADE BY THE SAME

#7
20240102238
2024-03-28

PROCESS FOR PRODUCING AND USING FIBRILLATED BIODEGRADABLE MICROFIBERS

#8
20240018722
2024-01-18

Preparation method of tea residue fiber raw materials and application thereof

#9
20230416985
2023-12-28

Modified sulfuric acid and uses thereof

#10
20230313454
2023-10-05

APPARATUS FOR RECYCLING OF LIGNOCELLULOSIC FIBRES FROM FIBREBOARDS

#11
20230099096
2023-03-30

Processes, methods, and systems for chemo-mechanical cellular explosion and solid and liquid products made by the same

#12
20230061371
2023-03-02

METHOD AND PROCESSING SYSTEM FOR REDUCING VOLATILE ORGANIC COMPOUNDS FROM WOOD CHIPS

#13
20220074141
2022-03-10

PRODUCTION METHOD FOR DRY SOLID CONTAINING FINE CELLULOSE FIBERS, DRY SOLID CONTAINING FINE CELLULOSE FIBERS, REDISPERSION OF FINE CELLULOSE FIBERS

#14
20220034028
2022-02-03

Engineered corn husk compositions and methods

#15
20210381017
2021-12-09

PROCESS FOR TREATING LIGNOCELLULOSIC BIOMASS

#16
20210363330
2021-11-25

NANOCELLULOSE-POLYMER COMPOSITES, AND PROCESSES FOR PRODUCING THEM

#17
20210269970
2021-09-02

Modified sulfuric acid and uses thereof

#18
20210254280
2021-08-19

Method for producing bleached wood fibre material

#19
20210246608
2021-08-12

Methods and devices for processing lignocellulosic biomass with recovery purified lignin and purified wax fractions.

#20
20210238800
2021-08-05

METHOD FOR PREPARING CHITOSAN AND DERIVATIVE NANOFIBER THEREOF BY MECHANICAL MEANS

#21
20210156087
2021-05-27

Defibrating method, fiber body forming method, and defibrating machine

#22
20210156086
2021-05-27

Methods for the separation of baobab fibers

#23
20200390108
2020-12-17

Processes, methods, and systems for chemo-mechanical cellular explosion and solid and liquid products made by the same

#24
20200346261
2020-11-05

Method and system for recovering pulp fibers from used absorbent articles

#25
20200332376
2020-10-22

ECONOMICAL METHODS FOR PERFORMING OXIDATIVE CATALYTIC PRETREATMENT OF PLANT BIOMASS USING A HOMOGENEOUS CATALYST SYSTEM

#26
20200332087
2020-10-22

A Lignin-Containing Cellulose Nanofiber, a Paper and a Film Comprising the Said Lignin-Containing Cellulose Nanofiber

#27
20200263081
2020-08-20

Rheology control of nanocellulose treatment fluids

#28
20200224365
2020-07-16

CELLULOSE NANOFIBER, SHEET-LIKE MATERIAL OBTAINED THEREFROM, AND METHOD FOR PRODUCING CELLULOSE NANOFIBER AND SHEET-LIKE MATERIAL

#29
20200199305
2020-06-25

Method for controlling thermoplasticity and toughness of redox-modified plant fiber and use thereof

#30
20190352849
2019-11-21

Method for producing a fibrous material

#31
20190338463
2019-11-07

Method for recovering pulp fibers from used absorbent article

#32
20190249362
2019-08-15

COMPOSITION FOR THE AEROBIC TREATMENT OF LIGNOCELLULOSIC RESIDUES, ASSOCIATED METHOD AND USE OF SAME FOR BIOLOGICAL PRETREATMENT OF SAID RESIDUES

#33
20190218372
2019-07-18

NANOCELLULOSE-POLYMER COMPOSITES, AND PROCESSES FOR PRODUCING THEM

#34
20190202956
2019-07-04

Method of preparing a grafted copolymer of lignin and/or cellulose

#35
20190169795
2019-06-06

Method for recovering pulp fibers from used absorbent article

#36
20190091674
2019-03-28

Methods of using multi-ligand metal complexes to perform oxidative catalytic pretreatment of lignocellulosic biomass

#37
20190003120
2019-01-03

METHOD FOR SAVING ENERGY IN PAPER PRODUCTION

#38
20180216292
2018-08-02

Method for producing bleached wood fibre material

#39
20180094081
2018-04-05

Nanofibrillar cellulose product

#40
20180072002
2018-03-15

SHEET MANUFACTURING APPARATUS AND SHEET MANUFACTURING METHOD

#41
20170335512
2017-11-23

Process for individualizing trichomes

#42
20170314196
2017-11-02

A CELLULOSE PRODUCTION METHOD

#43
20170284020
2017-10-05

Methods for producing raw materials from plant biomass

#44
20170226692
2017-08-10

Integrating the production of carboxylated cellulose nanofibrils and cellulose nanocrystals using recyclable organic acids

#45
20170121698
2017-05-04

sp. KMF001 having high cellulase activity

#46
20170044712
2017-02-16

Methods for producing raw materials from plant biomass

#47
20160236380
2016-08-18

Sheet manufacturing apparatus

#48
20160229129
2016-08-11

Sheet manufacturing apparatus and sheet manufacturing method

#49
20160222586
2016-08-04

Processes for producing cellulose pulp and pulp-derived products from lignocellulosic biomass

#50
20160168363
2016-06-16

NANOCELLULOSE-POLYMER COMPOSITES, AND PROCESSES FOR PRODUCING THEM

#51
20160097157
2016-04-07

System and method using a reaction chamber to beneficiate organic-carbon-containing feedstock for downstream processes

#52
20160069024
2016-03-10

Method for saving energy in paper production

#53
20160053337
2016-02-25

Process for controlled liquefaction of a biomass feedstock by treatment in hot compressed water

#54
20160024711
2016-01-28

Solvolysis of biomass to produce aqueous and organic products

#55
20160010131
2016-01-14

METHOD FOR PRETREATING BIOMASS, AND METHOD FOR PRODUCING SUGAR CONTAINING GLUCOSE AS MAIN COMPONENT

#56
20150376833
2015-12-31

METHOD AND APPARATUS FOR TREATMENT OF BIOMASS SUBSTRATES

#57
20150368862
2015-12-24

Raw-material supply device and biomass separation device

#58
20150352540
2015-12-10

MULTI-LIGAND METAL COMPLEXES AND METHODS OF USING SAME TO PERFORM OXIDATIVE CATALYTIC PRETREATMENT OF LIGNOCELLULOSIC BIOMASS

#59
20150299955
2015-10-22

Method for producing nanofibrillar cellulose

#60
20150191873
2015-07-09

Processes for producing high-yield pulp and paper products

#61
20140311693
2014-10-23

Wood fibre acetylation

#62
20140234921
2014-08-21

Polypeptides and active fragments of polypeptides having at least one esterase activity

#63
20140231034
2014-08-21

Enzymatic pretreatment of wood in a method for producing mechanical paper pulp

#64
20140209261
2014-07-31

Two-stage chemi-mechanical pretreatment for lignocellulosic biomass

#65
20140209260
2014-07-31

Enzymatic treatment of wood chips

#66
20140096922
2014-04-10

Processes for producing cellulose pulp, sugars, and co-products from lignocellulosic biomass

#67
20140093917
2014-04-03

Methods for converting lignocellulosic material to useful products

#68
20140083633
2014-03-27

Chemical treatment of lignocellulosic fiber bundle material, and methods and systems relating thereto

#69
20130280762
2013-10-24

Methods for producing and using densified biomass products containing pretreated biomass fibers

#70
20130180677
2013-07-18

Methods To Control Organic Contaminants In Fibers

#71
20130118697
2013-05-16

Process for recycling waste paper, product obtained therefrom and its uses

#72
20130000859
2013-01-03

APPARATUS TO ENHANCE FIBER DEVELOPMENT BY ADDITION OF TREATMENT AGENT DURING MECHANICAL PULPING

#73
20120318258
2012-12-20

Solvolysis of biomass to produce aqueous and organic products

#74
20120301722
2012-11-29

Engineered plant biomass particles coated with bioactive agents

#75
20120282660
2012-11-08

Method for processing lignocellulose containing material

#76
20120234511
2012-09-20

Vapor phase hydrolysis vessel and methods related thereto

#77
20120090798
2012-04-19

Method of making paper

#78
20120085505
2012-04-12

Methods for producing high-freeness pulp

#79
20110300269
2011-12-08

Pretreated densified biomass products

#80
20110114765
2011-05-19

Comminution and densification of biomass particles

#81
20100269994
2010-10-28

METHOD FOR TREATING LIGNO-CELLULOSIC MATERIALS

#82
20100224333
2010-09-09

METHOD AND CHEMICAL COMPOSITION TO IMPROVE EFFICIENCY OF MECHANICAL PULP

#83
20100186911
2010-07-29

Process for increasing the refiner production rate and/or decreasing the specific energy of pulping wood

#84
20100132898
2010-06-03

Process for the production of bleached wood particles and pale to white wood-base materials

#85
20100032111
2010-02-11

Process for producing fibrous material from wood

#86
20090288789
2009-11-26

Medium consistency refining method of pulp and system

#87
20090151880
2009-06-18

Method and system to enhance fiber development by addition of treatment agent during mechanical pulping

#88
20090107643
2009-04-30

Method for mechanical pulp production

#89
20090084511
2009-04-02

Method and apparatus for processing wood chips

#90
20080142181
2008-06-19

High defiberization chip pretreatment apparatus

#91
20080105391
2008-05-08

Pulping process with high defiberization chip pretreatment

#92
20080066877
2008-03-20

High defiberization pretreatment process for mechanical refining

#93
20070151683
2007-07-05

Process for preparing mechanical pulp

#94
20060243403
2006-11-02

MICROWAVE PRETREATMENT OF LOGS FOR USE IN MAKING PAPER AND OTHER WOOD PRODUCTS

#95
20060011314
2006-01-19

Process for pulping waste paper containing impurities

#96
20050241785
2005-11-03

Method of producing mechanical pulp and the mechanical pulp thus produced

#97
20050133643
2005-06-23

Process for increasing the refiner production rate and/or decreasing the specific energy of pulping wood

#98
20050011622
2005-01-20

High defiberization chip pretreatment

#99
17407125
2022-11-08

Method for dissolving lignocellulosic biomass

#100
14826093
2016-11-08

Decortication methods for producing raw materials from plant biomass