ClassID:

126388

D21C9/02 - CPC Classification

Classification description:

After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents

Sub-classes:
Recent Application in this class:
#1
20260028772
2026-01-29

RINSING DEVICE FOR REFINED COTTON

#2
20250302073
2025-10-02

METHODS TO PRODUCE HIGH PROTEIN ANIMAL FEED FROM A GRAIN PROCESSING PLANT THAT PRODUCES ALCOHOL

#3
20250283276
2025-09-11

SYSTEM FOR DECOLORIZATION OF MATERIAL COMPRISING CELLULOSE

#4
20250052002
2025-02-13

OPTIMIZATION OF CHEMICAL CONSUMPTION IN BIOMASS DELIGNIFICATION

#5
20250034805
2025-01-30

PHYSICAL REUTILIZATION OF SILICONIZED PAPERS

#6
20240328083
2024-10-03

Method for preparing fluff pulp from bamboos and fluff pulp prepared thereby

#7
20240240403
2024-07-18

FLUTING OR LINER COMPRISING NSSC PULP

#8
20240206499
2024-06-27

METHODS TO PRODUCE HIGH PROTEIN ANIMAL FEED FROM A GRAIN PROCESSING PLANT THAT PRODUCES ALCOHOL

#9
20240175206
2024-05-30

METHOD FOR PRODUCING PRODUCTS BASED ON NON-WOODY BIOMASS AS RAW MATERIAL

#10
20240167224
2024-05-23

METHOD AND APPARATUS FOR TREATING MIXTURES OF LIQUIDS AND SOLIDS

#11
20240044080
2024-02-08

UPCYCLED CELLULOSIC FIBERS

#12
20230357988
2023-11-09

PROCESS FOR TREATING TERRESTRIAL-BASED AND MARINE-BASED BIOMASSES

#13
20230345972
2023-11-02

Advanced processing methods to produce high protein feeds from dry grind cereal grains

#14
20230332358
2023-10-19

Oxidized cellulose materials

#15
20230304582
2023-09-28

METHOD AND ARRANGEMENT FOR WASHER SEAL CONTROL

#16
20230272580
2023-08-31

Oxygen bleaching method of pulp

#17
20230073443
2023-03-09

METHOD FOR MANUFACTURING BLEACHED PULP FROM A FEEDSTOCK COMPRISING RECYCLED PAPER

#18
20230046123
2023-02-16

Process for producing refined cotton with high polymerization degree

#19
20220356644
2022-11-10

Torque reaction arrangement for pulp washers

#20
20220333308
2022-10-20

Process for producing binderless formaldehyde-free fiberboard and coproducing fulvic acid from straw

#21
20220251781
2022-08-11

PROCESS TO OPTIMIZE BROWN STOCK WASHING UNIT OPERATIONS

#22
20220205179
2022-06-30

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

#23
20220205177
2022-06-30

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

#24
20220162799
2022-05-26

METHOD FOR PRODUCING PARENCHYMAL CELL CELLULOSE

#25
20220081833
2022-03-17

PREPARATION OF CELLULOSE FIBERS

#26
20210355635
2021-11-18

Dissolving wood pulps and methods of making and using the same

#27
20210148047
2021-05-20

Predictive control system and method for brown washing treatment in pulp mills

#28
20210148009
2021-05-20

DEGUMMING AND SCOURING OF BAST MATERIAL FOR PRODUCTION OF TEXTILE AND PULP-QUALITY FIBER

#29
20210108375
2021-04-15

OXIDIZED CELLULOSE CONTAINING PACKAGING MATERIALS

#30
20210009908
2021-01-14

Lignocellulosic biomass based process for production of lignins and syngas, and electricity production efficient syngas

#31
20210002824
2021-01-07

Low energy production process for producing paper pulp from lignocellulosic biomass

#32
20200362515
2020-11-19

Method for preparing unbleached biomechanical pulp from straw

#33
20200359657
2020-11-19

Feed optimization technology

#34
20200340182
2020-10-29

A CELLULOSE PAPER COMPOSITE AND PROCESS FOR PREPARATION THEREOF

#35
20200308765
2020-10-01

Method for producing parenchymal cell cellulose

#36
20200283953
2020-09-10

Processes and systems for the pulping of lignocellulosic materials

#37
20190390404
2019-12-26

Method for manufacturing dissolving pulp

#38
20190345671
2019-11-14

Method for treating biomass and device for treating biomass

#39
20190301096
2019-10-03

Use of mesoporous silica

#40
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

#41
20190264388
2019-08-29

Dissolving wood pulps and methods of making and using the same

#42
20190226153
2019-07-25

Oxidized cellulose containing packaging materials

#43
20190136448
2019-05-09

Method for separating cellulose

#44
20190112759
2019-04-18

SELECTIVE REMOVAL OF K+ AND CL- FROM RECOVERY BOILER ELECTROSTATIC PRECIPITATOR ASHES IN A KRAFT PROCESS

#45
20190003119
2019-01-03

System and methods for reducing edge wicking of a paperboard comprising fruit fiber and compositions produced thereby

#46
20180327969
2018-11-15

Treatment of lignocellulosic biomass with ionic liquid

#47
20180209094
2018-07-26

METHOD FOR CLEAN FIBER RECOVERY FROM CONTAMINATED ARTICLES INVOLVING THE ADDITION OF MAGNETIC PARTICLES

#48
20180207557
2018-07-26

Vapor relief strainer with cleaner

#49
20180202102
2018-07-19

METHOD FOR CLEAN FIBER RECOVERY FROM CONTAMINATED ARTICLES

#50
20180187376
2018-07-05

Brown stock wash control

#51
20180179703
2018-06-28

Process for producing a nanofibrillar cellulose hydrogel

#52
20180105982
2018-04-19

Processes and systems for the pulping of lignocellulosic materials

#53
20170314196
2017-11-02

A CELLULOSE PRODUCTION METHOD

#54
20170268170
2017-09-21

METHOD OF AND AN ARRANGEMENT FOR TRANSFERRING A PROCESS LIQUID, AN INDUSTRIAL FACILITY AND A METHOD OF SIMPLIFYING THE LAYOUT OF SUCH

#55
20170226694
2017-08-10

Detoxifying and recycling of washing solution used in pretreatment of lignocellulose-containing materials

#56
20170211232
2017-07-27

METHOD FOR HANDLING SPENT WASH SOLUTION OF A LIGNIN-RECOVERY PROCESS

#57
20170211231
2017-07-27

Methods for Treating Lignocellulosic Material

#58
20170204563
2017-07-20

PROCESSES FOR PRODUCING CELLULOSE PULP AND PULP-DERIVED PRODUCTS FROM LIGNOCELLULOSIC BIOMASS

#59
20170175332
2017-06-22

Methods for liberating trichome fibers form portions of a host plant

#60
20170175209
2017-06-22

Arrangement and system for a treatment process

#61
20170137995
2017-05-18

Methods for deinking wastepaper by combined use of cutinase and chemical reagents

#62
20170096774
2017-04-06

Measurement apparatus and method

#63
20170002514
2017-01-05

Method of removing odors from fibrous materials used in forming biocomposite materials

#64
20160326693
2016-11-10

Pile delignification

#65
20160319484
2016-11-03

Method of and an arrangement for transferring a process liquid, an industrial facility and a method of simplifying the layout of such

#66
20160273162
2016-09-22

Pineapple leaf fiber fine treatment method

#67
20160222586
2016-08-04

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

#68
20160215450
2016-07-28

Method of and an arrangement for introducing process liquid from a treatment step to a washing and/or filtering apparatus

#69
20160201261
2016-07-14

Method for catalytic oxidation of cellulose and method for making a cellulose product

#70
20160186376
2016-06-30

Method for pretreating cellulose pulp

#71
20160177507
2016-06-23

Press roll comb plate and related method

#72
20160076199
2016-03-17

Process for treating lignin

#73
20160040356
2016-02-11

METHOD AND ASSEMBLY FOR PROCESSING CELLULOSE PULP OF WOOD PROCESSING INDUSTRY

#74
20160017540
2016-01-21

PRETREATMENT AND FRACTIONATION OF LIGNOCELLULOSIC BIOMASS

#75
20150361616
2015-12-17

PROCESS FOR ISOLATING CELLULOSE FROM CELLULOSIC BIOMASS, ISOLATED CELLULOSE OF TYPE I AND COMPOSITE MATERIALS COMPRISING SAME

#76
20150315746
2015-11-05

Methods of processing plant fiber, and related systems and compositions

#77
20150247117
2015-09-03

Acinetobacter lwoffii strain, CGMCC#5973 and Its Application Thereof

#78
20150247116
2015-09-03

Rheinheimera tangshanensis CGMCC#5972 and Its Application Thereof

#79
20150191873
2015-07-09

Processes for producing high-yield pulp and paper products

#80
20150136346
2015-05-21

Process and a dissolving pulp manufactured by the process

#81
20150136345
2015-05-21

METHODS OF WASHING CELLULOSE-RICH SOLIDS FROM BIOMASS FRACTIONATION TO REDUCE LIGNIN AND ASH CONTENT

#82
20150122431
2015-05-07

Method of manufacturing pulp for corrugated medium

#83
20150059102
2015-03-05

Drainage of an aqueous composition

#84
20140318723
2014-10-30

Method for using washer press with multiple nips and multiple displacement wash zones

#85
20140305603
2014-10-16

PROCESS FOR MAKING PULP

#86
20140262097
2014-09-18

System for washing and dewatering pulp

#87
20140190643
2014-07-10

Method of and an arrangement for transferring a process liquid, an industrial facility and a method of simplifying the layout of such

#88
20140174679
2014-06-26

BCTMP filtrate recycling system and method

#89
20130192775
2013-08-01

Washer press with multiple nips and multiple displacement wash zones

#90
20130081769
2013-04-04

Method of manufacturing pulp for corrugated medium

#91
20120279669
2012-11-08

Method of treating liquid flows at a chemical pulp mill

#92
20120273145
2012-11-01

Organopolysilicone polyether drainage aid

#93
20120241112
2012-09-27

Method and arrangement for improving a washing step after completed cooking in a continuous digester

#94
20120205060
2012-08-16

Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials

#95
20120193050
2012-08-02

Method and assembly for processing cellulose pulp of wood processing industry

#96
20120061042
2012-03-15

Method and arrangement for wash after completed digestion in a continuous digester for the production of cellulose pulp

#97
20120006501
2012-01-12

Method for preparing nonwood fiber paper

#98
20110297343
2011-12-08

Raw Paper

#99
20110232853
2011-09-29

BCTMP filtrate recycling system and method

#100
20110005696
2011-01-13

DEVICE AND METHOD FOR DILUTION OF CELLULOSE PULP

#101
20100276094
2010-11-04

Apparatus for washing and dewatering pulp, a system for controlling such an apparatus, and a method for processing pulp in such an apparatus

#102
20100243184
2010-09-30

Method for treating liquid flows at a chemical pulp mill

#103
20100243183
2010-09-30

Method in connection with the washing of pulp at a chemical pulp mill

#104
20100224334
2010-09-09

Method for treating liquid flows at a chemical pulp mill

#105
20100175839
2010-07-15

PROCESS FOR ADJUSTING THE PH OF A CELLULOSIC PULP, PRODUCTION OF PULP OR PAPER FROM CELLULOSIC PULP AND USE OF (BI)CARBONATE REMOVAL FOR REDUCING THE CONSUMPTION OF ACID

#106
20100041879
2010-02-18

Method for recovering a low sodium content lignin fuel from black liquor

#107
20090301529
2009-12-10

Arrangement for the treatment of cellulose pulp in a washing apparatus arranged with seal removing means

#108
20090218065
2009-09-03

Arrangement for the treatment of cellulose pulp involving seal positioning means

#109
20090056895
2009-03-05

Method and a device for feeding pulp from a dewatering unit

#110
20090056889
2009-03-05

Detoxifying and recycling of washing solution used in pretreatment of lignocellulose-containing materials

#111
20080295981
2008-12-04

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

#112
20080202714
2008-08-28

METHODS AND SYSTEMS FOR THE USE OF RECYCLED FILTRATE IN BLEACHING PULP

#113
20080041541
2008-02-21

Uso of Cyclodextrin for Reducing Yellowing of Pulp and Paper

#114
20070295462
2007-12-27

Method for treating pulp in connection with the bleaching of chemical pulp

#115
20070039702
2007-02-22

Purification of alkaline washing liquid

#116
20060201642
2006-09-14

Methods of treating chemical cellulose pulp

#117
20060151134
2006-07-13

Elimination of alum yellowing of aspen thermomechanical pulp through pulp washing

#118
20060113048
2006-06-01

Method for washing pulp in a bleaching line and a bleaching line

#119
20060090866
2006-05-04

Method for washing pulp in a bleaching line

#120
20060090865
2006-05-04

Method of bleaching cellulose pulp and bleaching line therefore

#121
20060090864
2006-05-04

Method of bleaching cellulose pulp with a main conduit for wash liquor and filtrate

#122
20060016751
2006-01-26

Method of concentrating pulp mill extracts

#123
20060010669
2006-01-19

Process for purification of cotton linters

#124
20050126725
2005-06-16

Method for distributing cellulose pulp of low and medium consistency in order to form a uniform pulp web

#125
20050061460
2005-03-24

Method and arrangement for oxygen delignification of cellulose pulp

#126
18939596
2025-04-15

Cellulose based biodegradable absorptive filter and method of making

#127
18808127
2024-12-24

Method for making an adsorptive air filter

#128
18665929
2024-10-01

Biodegradable air filter from date palm and method of fabrication thereof

#129
17226143
2021-11-02

Biomass pulp digester

#130
15717604
2018-02-20

Synthesis of nanostructures from agro-wastes

#131
14601368
2016-06-21

On-site emulsification of defoamer for brownstock washing of pulp