ClassID:

126424

D21C9/18 - 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 De-watering

Sub-classes:
Recent Application in this class:
#1
20260028773
2026-01-29

REFINED COTTON DEWATERING DEVICE

#2
20250270762
2025-08-28

METHOD FOR PREPARING HYDROPHOBIC CELLULOSE USING PICKERING EMULSION AND HYDROPHOBIC CELLULOSE PREPARED USING THE SAME

#3
20250207328
2025-06-26

DESILICATION AND MANUFACTURE OF LOW CARBON INTENSITY CHEMI-MECHANICAL NON-WOOD PULP AND CO-PRODUCTS

#4
20250101681
2025-03-27

ARRANGEMENT AND METHOD FOR DEGASSING A PUMP

#5
20250052003
2025-02-13

DEWATERING BOX COVER

#6
20250043509
2025-02-06

SYSTEMS AND METHODS FOR DEWATERING AND DRYING NANOCELLULOSE

#7
20250034805
2025-01-30

PHYSICAL REUTILIZATION OF SILICONIZED PAPERS

#8
20250027270
2025-01-23

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

#9
20240426050
2024-12-26

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

#10
20240392502
2024-11-28

METHOD AND APPARATUS FOR PRODUCING A MOULDABLE CELLULOSIC FIBROUS MATERIAL

#11
20240375978
2024-11-14

METHOD AND APPARATUS FOR ELECTROCHEMICAL DEWATERING OF SUSPENSIONS OF CELLULOSIC NANOMATERIALS

#12
20240301623
2024-09-12

METHOD FOR PRODUCING A TRANSFER MIXTURE BY THE DIRECT DISSOLUTION PROCESS, USING A THIN LAYER EVAPORATOR

#13
20240247439
2024-07-25

SCALE INHIBITION FOR PULP DIGESTERS

#14
20240167224
2024-05-23

METHOD AND APPARATUS FOR TREATING MIXTURES OF LIQUIDS AND SOLIDS

#15
20240141588
2024-05-02

METHOD FOR FRACTIONATION OF HIGHLY REFINED CELLULOSE

#16
20240141587
2024-05-02

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

#17
20240076832
2024-03-07

KNEADER MIXER FOR PROCESSING A TRANSFER MIXTURE INTO A MOULDING SOLUTION ACCORDING TO THE DIRECT DISSOLVING METHOD

#18
20240075403
2024-03-07

THIN FILM EVAPORATOR, AND METHOD FOR PRODUCING A TRANSFER MIXTURE

#19
20230407567
2023-12-21

METHOD OF CONTROLLING THE DRYING OF CELLULOSE PULP IN A DRYING STEP OF A PULP PRODUCTION PROCESS

#20
20230383467
2023-11-30

CROSSLINKED KRAFT PULP COMPOSITIONS AND METHOD

#21
20230357988
2023-11-09

PROCESS FOR TREATING TERRESTRIAL-BASED AND MARINE-BASED BIOMASSES

#22
20230302384
2023-09-28

DRUM WASHER WITH GRAVITY ASSIST DRAINAGE

#23
20230265612
2023-08-24

A COOKING METHOD

#24
20230265611
2023-08-24

A HIGH YIELD COOKING METHOD

#25
20230250581
2023-08-10

Treated pulp and methods of making and using same

#26
20230235506
2023-07-27

Apparatus and method for processing a suspension comprising organic material and liquid

#27
20230212041
2023-07-06

Method and apparatus for electrochemical dewatering of suspensions of cellulosic nanomaterials

#28
20230160145
2023-05-25

Process and system for increasing the solids content of microfibrillated cellulose

#29
20230118469
2023-04-20

Method and System for Producing Recycled Fibers for MDF or HDF Production

#30
20230105345
2023-04-06

PROCESSING OF LIGNOCELLULOSIC BIOMASS

#31
20230099096
2023-03-30

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

#32
20230077220
2023-03-09

PROCESS FOR MANUFACTURING A FIBER BASED CELLULOSE WEB FOR DRY FORMING

#33
20230062079
2023-03-02

HEMP COMPOSITES

#34
20230043719
2023-02-09

METHOD AND SYSTEM FOR TREATING BIOMASS

#35
20220403603
2022-12-22

PACKING CONTAINER USING COCONUT BY-PRODUCT, GRAIN BY-PRODUCT OR COFFEE BY-PRODUCT AND METHOD FOR PRODUCING SAME

#36
20220356648
2022-11-10

Market Pulps Comprising Surface Enhanced Pulp Fibers and Methods of Making the Same

#37
20220356644
2022-11-10

Torque reaction arrangement for pulp washers

#38
20220127789
2022-04-28

Method for producing cellulose pulp, cellulose pulp and use thereof, paper

#39
20220127788
2022-04-28

Systems and methods for dewatering and drying nanocellulose

#40
20220081833
2022-03-17

PREPARATION OF CELLULOSE FIBERS

#41
20220025578
2022-01-27

Arrangement and method for degassing a pump

#42
20210372049
2021-12-02

Dewatering box cover

#43
20210355636
2021-11-18

Continuous process for production of cellulose pulp from grass-like feedstock

#44
20210277604
2021-09-09

PAPERMAKING SYSTEM AND METHOD

#45
20210221920
2021-07-22

RE-DISPERSED MICROFIBRILLATED CELLULOSE

#46
20210206131
2021-07-08

Screw feeder

#47
20210071366
2021-03-11

Controlled porosity structural material with nanocellulose fibers

#48
20210009908
2021-01-14

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

#49
20210002824
2021-01-07

Low energy production process for producing paper pulp from lignocellulosic biomass

#50
20200390108
2020-12-17

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

#51
20200346953
2020-11-05

METHOD AND APPARATUS FOR ELECTROCHEMICAL DEWATERING OF SUSPENSIONS OF CELLULOSIC NANOMATERIALS

#52
20200308766
2020-10-01

Treated pulp and methods of making and using same

#53
20200240078
2020-07-30

Method And System For Dewatering And Controlling Foam In Pulp And Paper Processes

#54
20200063341
2020-02-27

Process for the isolation of lignin from black liquor and modification of the lignin for plastic applications

#55
20200063340
2020-02-27

Method for dewatering of sludge from a pulp, paper or board making process

#56
20200048838
2020-02-13

Treated fibers and fibrous structures comprising the same

#57
20200023627
2020-01-23

Method for the production of a coated paper, paperboard or film and a coated paper, paperboard or film

#58
20200002891
2020-01-02

Crosslinked cellulose as precursor in production of high-grade cellulose derivatives and related technology

#59
20190390404
2019-12-26

Method for manufacturing dissolving pulp

#60
20190382510
2019-12-19

Re-dispersed microfibrillated cellulose

#61
20190376235
2019-12-12

Treated fibers and fibrous structures comprising the same

#62
20190284760
2019-09-19

Method And System For Producing Market Pulp And Products Thereof

#63
20190264387
2019-08-29

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

#64
20190136448
2019-05-09

Method for separating cellulose

#65
20190106840
2019-04-11

Multimodal Particles for Retention and Drainage for Paper-Making Machines

#66
20190093288
2019-03-28

Controlled porosity structural material with nanocellulose fibers

#67
20190062999
2019-02-28

Method for producing cellulose pulp, cellulose pulp and use thereof, paper

#68
20190055694
2019-02-21

METHOD FOR DEHYDRATING DISPERSION OF CHEMICALLY MODIFIED PULP

#69
20190023862
2019-01-24

Method of dewatering water soluble polymers

#70
20180363245
2018-12-20

CROSSLINKED KRAFT PULP COMPOSITIONS AND METHOD

#71
20180318740
2018-11-08

Filtration method and production process of cellulose nanofiber dispersion

#72
20180187372
2018-07-05

Crosslinked cellulose as precursor in production of high-grade cellulose derivatives and related technology

#73
20180134851
2018-05-17

Process for preparing cellulose solution and equipment therefor

#74
20180094383
2018-04-05

Methods for the production of high solids nanocellulose

#75
20180023249
2018-01-25

Pretreatment process of a ligno-cellulosic feedstock

#76
20170306057
2017-10-26

Re-dispersed microfibrillated cellulose

#77
20170247833
2017-08-31

Crosslinked cellulose as precursor in production of high-grade cellulose derivatives and related technology

#78
20170175209
2017-06-22

Arrangement and system for a treatment process

#79
20170137995
2017-05-18

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

#80
20160319482
2016-11-03

Dry mixed re-dispersible cellulose filament/carrier product and the method of making the same

#81
20160305067
2016-10-20

Pulp production arrangement and method

#82
20160289895
2016-10-06

Methods for producing a cellulosic fiber having a high curl index and acquisition and distribution layer containing same

#83
20160273162
2016-09-22

Pineapple leaf fiber fine treatment method

#84
20160265160
2016-09-15

Process for dewatering microfibrillated cellulose

#85
20160215450
2016-07-28

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

#86
20160186377
2016-06-30

Formation of hydrated nanocellulose sheets with or without a binder for the use as a dermatological treatment

#87
20160186376
2016-06-30

Method for pretreating cellulose pulp

#88
20160177507
2016-06-23

Press roll comb plate and related method

#89
20160153010
2016-06-02

Method and apparatus for conversion of cellulosic material to ethanol

#90
20160097157
2016-04-07

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

#91
20160076201
2016-03-17

Process to manufacture a mixture of p-aramid pulp with chopped fibers, mixture and its use

#92
20160076198
2016-03-17

Systems, devices and methods for agricultural product pulping

#93
20160032525
2016-02-04

Process for the isolation of lignin from black liquor and modification of the lignin for plastic applications

#94
20150375942
2015-12-31

Screw conveyor for lignocellulose-containing material

#95
20150361617
2015-12-17

Apparatus for washing and/or dewatering of cellulose pulp

#96
20150330023
2015-11-19

Method, system and apparatus for processing fibril cellulose and fibril cellulose material

#97
20150292151
2015-10-15

Method for producing ultrahigh-viscosity refined cotton and device for transporting refined cotton pulp

#98
20150218757
2015-08-06

Method and intermediate for the production of highly refined or microfibrillated cellulose

#99
20150136346
2015-05-21

Process and a dissolving pulp manufactured by the process

#100
20150059102
2015-03-05

Drainage of an aqueous composition

#101
20150027651
2015-01-29

Manufacture of cellulosic pulp sheets

#102
20150007951
2015-01-08

METHOD FOR RECOVERY OF MOLYBDATE IN A MOLYBDATE-CATALYSED DELIGNIFICATION OF PULP WITH HYDROGEN PEROXIDE

#103
20140329094
2014-11-06

Method for concentrating fibril cellulose and fibril cellulose product

#104
20140318723
2014-10-30

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

#105
20140262097
2014-09-18

System for washing and dewatering pulp

#106
20140110345
2014-04-24

Lignin dewatering process

#107
20140106412
2014-04-17

Screw compression process for the conversion of lignocellulosic suspensions containing a high proportion of dry material

#108
20140088301
2014-03-27

Process for treating microfibrillated cellulose and microfibrillated cellulose treated according to the process

#109
20140073774
2014-03-13

Process for treating cellulose and cellulose treated according to the process

#110
20130277003
2013-10-24

Method and arrangement for ameliorating the dewatering in a thin wire press

#111
20130192775
2013-08-01

Washer press with multiple nips and multiple displacement wash zones

#112
20130139980
2013-06-06

Method and system for producing market pulp and products thereof

#113
20120138246
2012-06-07

Method and apparatus for conversion of cellulosic material to ethanol

#114
20120048494
2012-03-01

Twin wire press

#115
20110303380
2011-12-15

Arrangement for washing and dewatering cellulose pulp

#116
20110233130
2011-09-29

METHOD AND ARRANGEMENT FOR FIXING AN ENDLESS WIRE

#117
20110042026
2011-02-24

Distribution device for feeding of cellulose pulp

#118
20110017646
2011-01-27

Apparatus for washing and dewatering pulp

#119
20110008850
2011-01-13

Process for the conversion of lignocellulosic solutions containing a high proportion of dry material

#120
20100314062
2010-12-16

Gas free valve for pulp vacuum washer and method

#121
20100294708
2010-11-25

Apparatus for washing and dewatering pulp

#122
20100282664
2010-11-11

DEVICE FOR DEWATERING OF PULP

#123
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

#124
20100269997
2010-10-28

Apparatus for washing and dewatering pulp

#125
20100252214
2010-10-07

Method and a Device for the Dewatering of a Fibre Suspension Supplied by a Nozzle Assembly

#126
20100243183
2010-09-30

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

#127
20100163428
2010-07-01

Processes and apparatuses for treating and/or increasing dryness of a substance

#128
20100155007
2010-06-24

Arrangement for washing and dewatering cellulose pulp

#129
20100048371
2010-02-25

Press roll for washing and/or dewatering pulp, and a method for manufacturing or repairing such a press roll

#130
20100041119
2010-02-18

Method and apparatus for conversion of cellulosic material to ethanol

#131
20100024997
2010-02-04

PROCESS FOR THE DERESINATION OF PULP AND USE OF CARBON DIOXIDE OR (BI) CARBONATE THEREFOR

#132
20090255876
2009-10-15

Feedback control scheme for optimizing dewatering processes

#133
20090056895
2009-03-05

Method and a device for feeding pulp from a dewatering unit

#134
20090038212
2009-02-12

Lignin dewatering process

#135
20080216981
2008-09-11

Method for conveying, mixing, and leveling dewatered pulp prior to drying

#136
20080087391
2008-04-17

Gas free valve for pulp vacuum washer and method

#137
20080073043
2008-03-27

Treatment of pulp

#138
20080011440
2008-01-17

Device for cleaning of a filter net of a pulp dryer's fan tower, a pulp dryer's fan and a pulp dryer

#139
20080010853
2008-01-17

Process for Producing Dried Singulated Fibers Using Steam and Heated Air

#140
20070267163
2007-11-22

Used paper recycling apparatus and its constitutent devices

#141
20070128415
2007-06-07

Dewatering and thickening belt having improved guide performance and manufacturing method thereof

#142
20070128414
2007-06-07

Dewatering and thickening belt and manufacturing method thereof

#143
20060244220
2006-11-02

Sealing device

#144
20060169428
2006-08-03

Devices and method for removing broken pulp web from a pulp dryer and maintenance platform for a pulp dryer

#145
20060016751
2006-01-26

Method of concentrating pulp mill extracts

#146
20050279466
2005-12-22

Method of producing twisted, curly fibers

#147
20050274469
2005-12-15

Highly refined fiber mass, process of their manufacture and products containing the fibers

#148
20050247423
2005-11-10

Machine for washing fibrous suspensions

#149
20050086828
2005-04-28

Process for producing dried, singulated fibers using steam and heated air

#150
20050074542
2005-04-07

Highly refined cellulosic materials combined with hydrocolloids

#151
20050067123
2005-03-31

Method for conveying, mixing, and leveling dewatered pulp prior to drying

#152
20050051287
2005-03-10

Chemimechanical desilication of nonwood plant materials

#153
20050022415
2005-02-03

System for making dried singulated crosslinked cellulose pulp fibers

#154
20050012276
2005-01-20

Seal at press rollers

#155
17226143
2021-11-02

Biomass pulp digester

#156
16224426
2019-07-09

Manure screw press having screen vibration