ClassID:

126333

D21C1/02 - CPC Classification

Classification description:

Pretreatment of the finely-divided materials before digesting with water or steam

Recent Application in this class:
#1
20260009178
2026-01-08

PROCESSES AND SYSTEMS FOR BIOMASS IMPREGNATION TO IMPROVE CONVERSION TO SUGARS, CHEMICALS, FUELS, AND MATERIALS

#2
20250250592
2025-08-07

HYDROTHERMAL-MECHANICAL CONVERSION OF LIGNOCELLULOSIC BIOMASS TO ETHANOL OR OTHER FERMENTATION PRODUCTS

#3
20250163643
2025-05-22

APPARATUSES, METHODS AND SYSTEMS FOR YIELD INCREASE IN A KRAFT COOKING PLANT

#4
20250146219
2025-05-08

HIGH BRIGHTNESS NON-WOOD PULP

#5
20250059709
2025-02-20

NANOCELLULOSE-REINFORCED CORRUGATED MEDIUM

#6
20250034806
2025-01-30

REACTOR DISCHARGE

#7
20250012010
2025-01-09

NON-WOOD PULP HAVING HIGH BRIGHTNESS AND LOW DEBRIS

#8
20240401269
2024-12-05

THERMAL-PRESSURE HYDROLYSIS SUSTAINABLE BIOMASS FOR THE PRODUCTION OF ALTERNATIVE PROTEINS AND BIO-MATERIALS

#9
20240392500
2024-11-28

METHODS AND DEVICES FOR PROCESSING LIGNOCELLULOSIC BIOMASS USING MECHANICAL PRETREATMENT TO ENHANCE FEEDSTOCK HYDRATION PROPERTIES

#10
20240309586
2024-09-19

A METHOD FOR PRODUCING A CHEMI-THERMOMECHANICAL FIBROUS PULP FROM NON-WOOD PLANT RAW MATERIALS AND AN AUTOMATED LINE FOR PRODUCING SAID PULP BY SAID METHOD

#11
20240295074
2024-09-05

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

#12
20240295073
2024-09-05

MODIFIED SULFURIC ACID AND USES THEREOF

#13
20240279406
2024-08-22

NEW METHOD

#14
20240229353
2024-07-11

METHOD AND SYSTEM FOR CONTINOUSLY TREATING BIOMASS MATERIAL

#15
20240226841
2024-07-11

Process and System for Producing Pulp, Energy, and Bioderivatives from Plant-Based and Recycled Materials

#16
20240131489
2024-04-25

Process and System for Producing Pulp, Energy, and Bioderivatives from Plant-Based and Recycled Materials

#17
20240102240
2024-03-28

FIBROUS BODY PROCESSING APPARATUS

#18
20240102239
2024-03-28

FIBROUS BODY PROCESSING APPARATUS

#19
20240018723
2024-01-18

Non-wood pulp having high brightness and low debris

#20
20230407562
2023-12-21

High brightness non-wood pulp

#21
20230374730
2023-11-23

Apparatuses, methods and systems for yield increase in a kraft cooking plant

#22
20230265612
2023-08-24

A COOKING METHOD

#23
20230265611
2023-08-24

A HIGH YIELD COOKING METHOD

#24
20230256411
2023-08-17

A PRE-HYDROLYSIS PRESSURE VESSEL SYSTEM COMPRISING A CLEANING ARRANGEMENT

#25
20230124761
2023-04-20

METHODS AND SYSTEMS FOR PROCESSING MIXED TEXTILE FEEDSTOCK, ISOLATING CONSTITUENT MOLECULES, AND REGENERATING CELLULOSIC AND POLYESTER FIBERS

#26
20230098986
2023-03-30

ARRANGEMENT AND METHOD FOR PRETREATMENT OF BIOMASS

#27
20230062079
2023-03-02

HEMP COMPOSITES

#28
20230002972
2023-01-05

Nanocellulose-reinforced corrugated medium

#29
20230002971
2023-01-05

METHOD AND PLANT FOR OBTAINING CELLULOSE FIBRES

#30
20220298725
2022-09-22

CELLULOSE MATERIAL PLASTICIZATION AND VISCOSITY CONTROLLED CELLULOSIC MATERIAL

#31
20220243229
2022-08-04

Hydrothermal-mechanical conversion of lignocellulosic biomass to ethanol or other fermentation products

#32
20220205179
2022-06-30

Method for preparing unbleached biomechanical pulp from straws and full utilization of by-products

#33
20220205177
2022-06-30

Method for preparing biomechanical unbleached pulp from wheat straw and full utilization of by-products thereof

#34
20220205176
2022-06-30

Method for preparing unbleached biomechanical pulp by hot steam in coordination with biological enzyme treatment of wheat straw and full utilization of by-products thereof

#35
20220136171
2022-05-05

Method for non-catalytic delignification of biomass inside an apparatus

#36
20220120036
2022-04-21

Combustion of streams derived from hot water extraction of wood material

#37
20220025130
2022-01-27

ISOLATION METHOD FOR WATER INSOLUBLE LIGNIN COMPONENTS OF A BIOMASS

#38
20210404116
2021-12-30

Reactor discharge screw

#39
20210395466
2021-12-23

Extraction of valuable components from bark

#40
20210355635
2021-11-18

Dissolving wood pulps and methods of making and using the same

#41
20210340350
2021-11-04

Methods and systems for processing mixed textile feedstock, isolating constituent molecules, and regenerating cellulosic and polyester fibers

#42
20210285155
2021-09-16

METHODS OF MAKING SPECIALIZED CELLULOSE AND OTHER PRODUCTS FROM BIOMASS

#43
20210284675
2021-09-16

Methods of making specialized lignin and lignin products from biomass

#44
20210277151
2021-09-09

Processes for producing nanocellulose, and nanocellulose compositions produced therefrom

#45
20210254281
2021-08-19

Reactor discharge

#46
20210237024
2021-08-05

Reactor vessel for biomass material

#47
20210221919
2021-07-22

Nanolignocellulose compositions and processes to produce these compositions

#48
20210197155
2021-07-01

System for treatment of a biomass material and a method for connecting a valve to a transporting pipe

#49
20210156086
2021-05-27

Methods for the separation of baobab fibers

#50
20210131031
2021-05-06

PROCESSES AND SYSTEMS FOR BIOMASS IMPREGNATION TO IMPROVE CONVERSION TO SUGARS, CHEMICALS, FUELS, AND MATERIALS

#51
20210095421
2021-04-01

Multi-step process for the isolation of components from

#52
20210095420
2021-04-01

System for treatment of a biomass material

#53
20210062426
2021-03-04

PROCESS FOR PRODUCING BIOMASS FIBER MOLDING MATERIAL

#54
20210062420
2021-03-04

Method for preparing dissolving pulp by TCF bleaching of poplar KP

#55
20210054566
2021-02-25

Method for preparing unbleached biomechanical pulp from straw

#56
20210054541
2021-02-25

Method for producing shortened anionically modified cellulose fibers

#57
20200381879
2020-12-03

Isolation method for water insoluble components of a biomass

#58
20200362515
2020-11-19

Method for preparing unbleached biomechanical pulp from straw

#59
20200339761
2020-10-29

Lignocellulosic biomass treatment method

#60
20200256013
2020-08-13

Method for extracting biomass

#61
20200216760
2020-07-09

Integrated waste conversion system and method

#62
20200188872
2020-06-18

Process and system for producing pulp, energy, and bioderivatives from plant-based and recycled materials

#63
20200181844
2020-06-11

RECONSTITUTED TOBACCO AND PREPARATION METHOD THEREOF

#64
20200173103
2020-06-04

METHOD FOR PRODUCING ACETATE GRADE DISSOLVING PULP FROM POPLAR RESIDUAL SLABS

#65
20200172939
2020-06-04

Hydrothermal-mechanical conversion of lignocellulosic biomass to ethanol or other fermentation products

#66
20200157739
2020-05-21

Biomass, thermal pressure hydrolysis and anaerobic digestion

#67
20200123706
2020-04-23

Method for recovering concentrated hydrolysate after hydrolysis of cellulose material

#68
20200123705
2020-04-23

Refiner apparatus and a method for refining cellulosic material

#69
20200109516
2020-04-09

Nanocellulose-reinforced corrugated medium

#70
20200040273
2020-02-06

WOOD PROCESSING METHOD

#71
20200011011
2020-01-09

Steam saving device

#72
20190390404
2019-12-26

Method for manufacturing dissolving pulp

#73
20190360006
2019-11-28

Hydrothermal-mechanical conversion of lignocellulosic biomass to ethanol or other fermentation products

#74
20190345671
2019-11-14

Method for treating biomass and device for treating biomass

#75
20190316051
2019-10-17

Method of converting biomass

#76
20190309474
2019-10-10

Combustion of streams derived from hot water extraction of wood material

#77
20190309473
2019-10-10

Methods for the production of pulp and hemicellulose

#78
20190309472
2019-10-10

Methods and devices for processing lignocellulosic biomass using mechanical pretreatment to enhance feedstock hydration properties

#79
20190276636
2019-09-12

Composite cellulose material obtained from coffee husks or cocoa shells, an article comprising same and a method for producing said material

#80
20190264388
2019-08-29

Dissolving wood pulps and methods of making and using the same

#81
20190255506
2019-08-22

Process and system for producing pulp, energy, and bioderivatives from plant-based and recycled materials

#82
20190249363
2019-08-15

METHOD FOR EXTRACTING CELLUSOSE, HEMICELLULOSE AND LIGNIN FROM LIGNOCELLULOSE FROM PLANT BIOMASS

#83
20190218712
2019-07-18

Method for generation of clean steam in a continous digester system

#84
20190202956
2019-07-04

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

#85
20190185775
2019-06-20

Process for reduction of energy consumption during the pretreatment of biomass

#86
20190136279
2019-05-09

Process for producing a bio-product

#87
20190127910
2019-05-02

Method and arrangement for generating process steam

#88
20190112764
2019-04-18

Natural fiber reinforced composite panel and method

#89
20190048377
2019-02-14

Method for producing saccharified solution by enzymatic method using cellulose-type biomass as raw material

#90
20180355387
2018-12-13

CELLULOSIC BIOFUEL AND CO-PRODUCTS

#91
20180298113
2018-10-18

NANOLIGNOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE THESE COMPOSITIONS

#92
20180274000
2018-09-27

Self-sufficient process for the production of biomass hydrolysate with reduced salt content

#93
20180245285
2018-08-30

METHODS OF PRODUCING A PAPER PRODUCT

#94
20180237806
2018-08-23

Hydrothermal-mechanical conversion of lignocellulosic biomass to ethanol or other fermentation products

#95
20180215893
2018-08-02

Methods and systems for processing mixed textile feedstock, isolating constituent molecules, and regenerating cellulosic and polyester fibers

#96
20180163344
2018-06-14

Method for reducing pulp viscosity in production of dissolving pulp

#97
20180119345
2018-05-03

Process for producing a pulp

#98
20180071706
2018-03-15

Process and system for producing pulp, energy, and bioderivatives from plant-based and recycled materials

#99
20180037863
2018-02-08

Sulfur dioxide and/or sulfurous acid pretreatment with sulfur dioxide recovery

#100
20180023249
2018-01-25

Pretreatment process of a ligno-cellulosic feedstock

#101
20180016607
2018-01-18

CONTROLLING THE PRETREATMENT OF A SOFTWOOD STARTING MATERIAL

#102
20170362618
2017-12-21

HIGH SOLIDS ENZYMATIC HYDROLYSIS AND FERMENTATION OF PRETREATED BIOMASS

#103
20170328003
2017-11-16

Nanocellulose-reinforced corrugated medium

#104
20170314197
2017-11-02

PROCESS FOR THE PRODUCTION OF A TREATED PULP, TREATED PULP, AND TEXTILE FIBRES PRODUCED FROM THE TREATED PULP

#105
20170306557
2017-10-26

Methods of producing a paper product

#106
20170298152
2017-10-19

Method of processing and fractionating biomass and use of fractions thus obtained

#107
20170298150
2017-10-19

Method for processing a biomass containing lignocellulose

#108
20170275817
2017-09-28

Continuous process for treating a lignocellulosic biomass

#109
20170268168
2017-09-21

Method for continuously cooking grass raw materials and device

#110
20170247832
2017-08-31

Method and plant for pre-treating biomasses

#111
20170137579
2017-05-18

Treatment of lignocellulosic biomass with aromatic chemicals as scavengers

#112
20170101737
2017-04-13

Methods and devices for hydrothermal pretreatment of lignocellulosic biomass

#113
20170044712
2017-02-16

Methods for producing raw materials from plant biomass

#114
20170037436
2017-02-09

HYDROTHERMAL-MECHANICAL CONVERSION OF LIGNOCELLULOSIC BIOMASS TO ETHANOL OR OTHER FERMENTATION PRODUCTS

#115
20170016180
2017-01-19

Method and arrangement for generating steam at a digester plant of a chemical pulp mill

#116
20160312318
2016-10-27

Lignocellulosic biomass hydrolysis without enzymes or acid catalysts

#117
20160312249
2016-10-27

Process comprising sulfur dioxide and/or sulfurous acid pretreatment and enzymatic hydrolysis

#118
20160298292
2016-10-13

Biomass treatment for hydrothermal hydrocatalytic conversion

#119
20160273011
2016-09-22

Process for hydrolyzing a pretreated feedstock and recovering lignin

#120
20160244788
2016-08-25

HYDROTHERMAL-MECHANICAL CONVERSION OF LIGNOCELLULOSIC BIOMASS TO ETHANOL OR OTHER FERMENTATION PRODUCTS

#121
20160222586
2016-08-04

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

#122
20160215448
2016-07-28

Device for discharging pretreated biomass from higher to lower pressure regions

#123
20160168791
2016-06-16

Methods of producing a paper product

#124
20160160253
2016-06-09

Methods of processing lignocellulosic biomass using single-stage autohydrolysis pretreatment and enzymatic hydrolysis

#125
20160130753
2016-05-12

Method for recovering hydrolysate

#126
20160122945
2016-05-05

Short oxygen delignification method

#127
20160076198
2016-03-17

Systems, devices and methods for agricultural product pulping

#128
20160069020
2016-03-10

Bagasse fractionation for cellulosic ethanol and chemical production

#129
20150367308
2015-12-24

Method and device for pretreatment of biomass for conversion to energy

#130
20150315746
2015-11-05

Methods of processing plant fiber, and related systems and compositions

#131
20150315744
2015-11-05

Process for treating biomass

#132
20150233057
2015-08-20

LIGNIN-COATED CELLULOSE FIBERS FROM LIGNOCELLULOSIC BIOMASS

#133
20150233053
2015-08-20

Method and apparatus for adding steam for a steam explosion pretreatment process

#134
20150233051
2015-08-20

PSEUDOMONAS FLUORESCENS CGMCC#5974 AND ITS APPLICATION THEREOF

#135
20150191873
2015-07-09

Processes for producing high-yield pulp and paper products

#136
20150167238
2015-06-18

Biomass treatment for hydrothermal hydrocatalytic conversion

#137
20150152598
2015-06-04

METHOD FOR ISOLATING CELLULOSE FROM A BIOMASS AND PRODUCTS PROVIDED THEREFROM

#138
20150152597
2015-06-04

Highly absorbent and retentive fiber material

#139
20150147796
2015-05-28

Method for processing a biomass containing lignocellulose

#140
20150136344
2015-05-21

Product and processes from an integrated forest biorefinery

#141
20150068516
2015-03-12

Process for treating biomass

#142
20150041081
2015-02-12

Natural fiber reinforced composite panel and method

#143
20140312270
2014-10-23

Use of carbonium ion scavengers in the treatment of lignocellulosic biomass

#144
20140288298
2014-09-25

Method for manufacturing monosaccharides, oligosaccharides, and furfurals from biomass

#145
20140249237
2014-09-04

Pretreatment of biomass using steam explosion methods before gasification

#146
20140246158
2014-09-04

Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method

#147
20140238626
2014-08-28

Method for producing cellulose nanofibers

#148
20140231034
2014-08-21

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

#149
20140199740
2014-07-17

Wet oxidation of biomass

#150
20140182796
2014-07-03

Product and processes from an integrated forest biorefinery

#151
20140110069
2014-04-24

Piping system from reactor to separator and method to control process flow

#152
20140096922
2014-04-10

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

#153
20140083633
2014-03-27

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

#154
20140034253
2014-02-06

Process for acetic acid removal from pretreated biomass

#155
20130341569
2013-12-26

Pretreatment of biomass using steam explosion methods

#156
20130289268
2013-10-31

Process for treating biomass

#157
20130252293
2013-09-26

Process for producing bio-based product from straw hemicellulose and fully utilizing the components thereof

#158
20130248760
2013-09-26

PARTICLE FOR GASIFICATION CONTAINING A CELLULOSE CORE WITH A COATING OF LIGNIN

#159
20130206345
2013-08-15

Method and device for the hydrolysis of preferably solid organic substrates

#160
20130168602
2013-07-04

Pre-soaking process for biomass conversion

#161
20130158253
2013-06-20

Process for recovering sugars from a pretreatment stream of lignocellulosic biomass

#162
20130112359
2013-05-09

Product and processes from an integrated forest biorefinery

#163
20130105098
2013-05-02

Method and system for impregnating chips

#164
20130071903
2013-03-21

METHOD FOR HEATING A FEEDSTOCK

#165
20130045509
2013-02-21

Enzymatic hydrolysis pretreatment of lignocellulosic materials

#166
20120329116
2012-12-27

PRETREATMENT OF LIGNOCELLULOSIC BIOMASS THROUGH REMOVAL OF INHIBITORY COMPOUNDS

#167
20120282660
2012-11-08

Method for processing lignocellulose containing material

#168
20120276585
2012-11-01

METHOD FOR PRODUCING FERMENTATION PRODUCTS FROM LIGNOCELLULOSE-CONTAINING MATERIAL

#169
20120234511
2012-09-20

Vapor phase hydrolysis vessel and methods related thereto

#170
20120180962
2012-07-19

APPARATUS AND PROCESS FOR TREATMENT OF FIBERS

#171
20120178154
2012-07-12

Organic material production system using biomass material and method

#172
20120168102
2012-07-05

PULPING PROCESS FOR QUALITY PROTECTION INCLUDING METHODS FOR HEMICELLULOSE EXTRACTION AND TREATMENT OF HEMICELLULOSE-EXTRACTED LIGNOCELLULOSIC MATERIALS

#173
20120138546
2012-06-07

High Temperature Lignin Separation Process

#174
20120125550
2012-05-24

Apparatus and process for treatment of fibers

#175
20120111515
2012-05-10

Method and device for thermal hydrolysis and steam explosion of biomass

#176
20120111514
2012-05-10

Bagasse fractionation for cellulosic ethanol and chemical production

#177
20120111513
2012-05-10

Arrangement and method for the continuous steam pre-treatment of chips during the production of cellulose pulp

#178
20120097351
2012-04-26

Highly absorbent and retentive fiber material

#179
20120041186
2012-02-16

System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process

#180
20120000620
2012-01-05

SMALL ANIMAL BEDDING MATERIAL

#181
20110296748
2011-12-08

METHODS FOR THE MANUFACTURE OF FUEL PELLETS AND OTHER PRODUCTS FROM LIGNOCELLULOSIC BIOMASS

#182
20110272110
2011-11-10

Method and system for high alpha dissolving pulp production

#183
20110272109
2011-11-10

Method and system for pulp processing using cold caustic extraction with alkaline filtrate reuse

#184
20110263004
2011-10-27

Method of treating biomass

#185
20110256615
2011-10-20

Modification of biomass for efficient conversion to fuels

#186
20110201061
2011-08-18

Process for hydrolysis of wet fiber and method for producing fermentation products from wet fiber

#187
20110143412
2011-06-16

Method and apparatus for pretreating biomass using internal heat

#188
20110124057
2011-05-26

Organic material production system using biomass material and method

#189
20110104773
2011-05-05

PROCESSING METHOD FOR FRACTIONALLY CONVERTING PENNISETUM HYDRIDUM INTO FUEL ETHANOL WITH CO-PRODUCTION OF ELECTRICITY GENERATION AND PAPER PULP

#190
20110081689
2011-04-07

Process for Thermal-Mechanical Pretreatment of Biomass

#191
20110073264
2011-03-31

Kraft-Pulping of Hot Water Extracted Woodchips

#192
20110056637
2011-03-10

PREHYDROLYSIS SULFATE COOKING PROCESS

#193
20110028672
2011-02-03

UTILIZATION OF A WOOD HYDROLYSATE

#194
20110011391
2011-01-20

METHOD AND APPARATUS FOR THE HEAT TREATMENT OF A CELLULOSIC FEEDSTOCK UPSTREAM OF HYDROLYSIS

#195
20100297742
2010-11-25

METHOD AND DEVICE FOR THERMAL ENZYMATIC HYDROLYSIS OF LIGNO CELLULOSE

#196
20100294443
2010-11-25

MANUFACTURING METHOD OF BAMBOO CHIP AND MANUFACTURING METHOD BAMBOO FIBER USING THE BAMBOO CHIP

#197
20100276093
2010-11-04

Process for fractionating sugarcane bagasse into high α-cellulose pulp, xylan and lignin

#198
20100276092
2010-11-04

Method of pre-treating woodchips prior to mechanical pulping

#199
20100263814
2010-10-21

PRETREATMENT OF LIGNOCELLULOSIC BIOMASS THROUGH REMOVAL OF INHIBITORY COMPOUNDS

#200
20100181034
2010-07-22

Removal of inhibitory compounds during pre-treatment of lignocellulosic biomass

#201
20090312536
2009-12-17

Process for producing a pulp

#202
20090301673
2009-12-10

System and a method for the steam pre-treatment of chips in association with the production of chemical cellulose pulp

#203
20090221814
2009-09-03

System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process

#204
20090218055
2009-09-03

Method for recovering hydrolysis products

#205
20090194243
2009-08-06

Method for treating lignocellulosic materials

#206
20090139671
2009-06-04

Method for the continuous steam pre-treatment of chips during the production of cellulose pulp

#207
20090084511
2009-04-02

Method and apparatus for processing wood chips

#208
20090020244
2009-01-22

IMPREGNATION VESSEL WITH CONVERGENCE SIDE RELIEF AND METHOD FOR HEAT INJECTION AT CONVERGENCE

#209
20080302492
2008-12-11

Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method

#210
20080295982
2008-12-04

Process for Producing Fiber Pulp Utilizing Bamboo and Pulp Produced Using the Same

#211
20080295981
2008-12-04

Single vessel reactor system for hydrolysis and digestion of wood chips with chemical enhanced wash method

#212
20080293114
2008-11-27

Method of continuous processing of lignocellulosic feedstock

#213
20080277082
2008-11-13

HIGH PRESSURE COMPRESSOR AND STEAM EXPLOSION PULPING METHOD

#214
20070256801
2007-11-08

Alkaline Process and System for Producing Pulp

#215
20070227682
2007-10-04

Method and a Device for Removing Gas from Wood Chips

#216
20070193706
2007-08-23

Method of pre-treating woodchips prior to mechanical pulping

#217
20070079944
2007-04-12

Product and processes from an integrated forest biorefinery

#218
20070051481
2007-03-08

Modified kraft fibers

#219
20060272786
2006-12-07

Method and apparatus for removing gas from particulated material

#220
20060191652
2006-08-31

Steam treatment of chips with the addition of an acid liquid

#221
20050061464
2005-03-24

Feeding arrangement for feeding of chips to chip bins

#222
14826093
2016-11-08

Decortication methods for producing raw materials from plant biomass