ClassID:

126469

D21D1/20 - CPC Classification

Classification description:

Methods of beating or refining; Beaters of the Hollander type Methods of refining

Sub-classes:
Recent Application in this class:
#1
20250243625
2025-07-31

FIBRE PROCESSING APPARATUS AND AN ASSOCIATED METHOD

#2
20250207327
2025-06-26

METHOD FOR OPTIMIZING THE REFINING ENERGY DURING AN OPERATION OF REFINING OF A FIBER COMPOSITION

#3
20250146219
2025-05-08

HIGH BRIGHTNESS NON-WOOD PULP

#4
20250092605
2025-03-20

LIQUID CRYSTAL POLYMER POWDER, LIQUID CRYSTAL POLYMER FILM, AND METHOD OF PRODUCING SAME

#5
20250059712
2025-02-20

STRENGTH ENHANCEMENT AGENT FOR PAPER AND PAPERBOARD

#6
20250059708
2025-02-20

Adjusting Blade Gap in Processing Equipment for Processing Fibrous Material

#7
20250027270
2025-01-23

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

#8
20250012010
2025-01-09

NON-WOOD PULP HAVING HIGH BRIGHTNESS AND LOW DEBRIS

#9
20240344274
2024-10-17

DISPERSIBLE PAPER, METHOD FOR PRODUCING SAME, PACKAGING AND USE OF SAID PAPER

#10
20240240400
2024-07-18

PAPER FILLER COMPOSITION

#11
20240122231
2024-04-18

IMPROVED WRAPPING PAPER HAVING A LOW DIFFUSION CAPACITY

#12
20240018723
2024-01-18

Non-wood pulp having high brightness and low debris

#13
20230407568
2023-12-21

Pulp Mixture

#14
20230407562
2023-12-21

High brightness non-wood pulp

#15
20230220623
2023-07-13

METHOD FOR CO-PRODUCING MOLDED FOOD-CONTAINER PULP AND FULVIC ACID FROM COTTON STALK

#16
20230213405
2023-07-06

VIBRATION MEASURING ASSEMBLY

#17
20230084180
2023-03-16

METHOD FOR PRODUCTION OF FILLER LOADED SURFACE ENHANCED PULP FIBERS

#18
20220389660
2022-12-08

Aramid pulp and method for manufacturing the same

#19
20220372706
2022-11-24

METHOD TO PRODUCE A PAPERBOARD, A PAPERBOARD AND A CORRUGATED BOARD

#20
20220364305
2022-11-17

Paper filler composition

#21
20220333312
2022-10-20

Tissues and paper towels incorporating surface enhanced pulp fibers and methods of making the same

#22
20220333308
2022-10-20

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

#23
20220225662
2022-07-21

Wrapper For Enclosing Smokable Substances

#24
20220205177
2022-06-30

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

#25
20220170207
2022-06-02

Fiberboard manufacturing method and fiberboard

#26
20220162799
2022-05-26

METHOD FOR PRODUCING PARENCHYMAL CELL CELLULOSE

#27
20220081840
2022-03-17

MICROFIBRILLATED CELLULOSE CONTAINING PULP SHEETS WITH IMPROVED MECHANICAL PROPERTIES

#28
20220018068
2022-01-20

Paper filler composition

#29
20210277604
2021-09-09

PAPERMAKING SYSTEM AND METHOD

#30
20210269972
2021-09-02

METHOD OF MAKING PAPER OR BOARD

#31
20210207289
2021-07-08

SURFACE ENHANCED PULP FIBERS, METHODS OF MAKING SURFACE ENHANCED PULP FIBERS, PRODUCTS INCORPORATING SURFACE ENHANCED PULP FIBERS, AND METHODS OF MAKING PRODUCTS INCORPORATING SURFACE ENHANCED PULP FIBERS

#32
20210189652
2021-06-24

Method of preparing recycled cellulosic fibers to improve paper production

#33
20210180252
2021-06-17

Fiber blend, method for producing fiber blend, and paperboard product comprising fiber blend

#34
20210140113
2021-05-13

Papermaking system and method

#35
20210102340
2021-04-08

PRODUCTION OF HIGHLY STRETCHABLE PAPER HAVING SATISFACTORY SURFACE PROPERTIES

#36
20210040692
2021-02-11

METHODS AND SYSTEMS FOR PRODUCING HCM SHEETS

#37
20200407912
2020-12-31

Method for producing cellulose nanofibers

#38
20200362515
2020-11-19

Method for preparing unbleached biomechanical pulp from straw

#39
20200347551
2020-11-05

Monitoring and controlling of refining of fibrous pulp

#40
20200340182
2020-10-29

A CELLULOSE PAPER COMPOSITE AND PROCESS FOR PREPARATION THEREOF

#41
20200332468
2020-10-22

Method to produce a paperboard, a paperboard and a corrugated board

#42
20200308765
2020-10-01

Method for producing parenchymal cell cellulose

#43
20200283954
2020-09-10

METHOD OF CONTROLLING THE CHEMICAL BALANCE OF A PULP MILL

#44
20200248405
2020-08-06

PROCESS TO REDUCE THE OVERALL ENERGY CONSUMPTION IN THE PRODUCTION OF NANOCELLULOSE

#45
20200181842
2020-06-11

PRODUCTION OF PAPER THAT IS HIGHLY STRETCHABLE IN THE CROSS DIRECTION

#46
20200123707
2020-04-23

Method of increasing the throughput and/or decreasing energy usage of a pulping process

#47
20200109515
2020-04-09

Pulp mixture

#48
20200063342
2020-02-27

Addition of cellulose esters to a paper mill without substantial modifications

#49
20200048833
2020-02-13

Fiber blend, method for producing fiber blend, and paperboard product comprising fiber blend

#50
20190352849
2019-11-21

Method for producing a fibrous material

#51
20190284762
2019-09-19

MICROFIBRILLATED CELLULOSE

#52
20190218714
2019-07-18

FIBER PROCESSING DEVICE, FIBROUS FEEDSTOCK RECYCLING DEVICE, AND CONTROL METHOD OF A FIBER PROCESSING DEVICE

#53
20190218713
2019-07-18

Fiber processing device, fibrous feedstock recycling device, and control method of a fiber processing device

#54
20190203413
2019-07-04

Methods of Modifying Pulp Comprising Cellulase Enzymes and Products Thereof

#55
20190136454
2019-05-09

Process for manufacture of highly refined cellulose fiber materials and the new fibers

#56
20190078257
2019-03-14

Paper filler composition

#57
20190060792
2019-02-28

Deaeration apparatus

#58
20180371694
2018-12-27

Paper filler composition

#59
20180327970
2018-11-15

Blade segment for refiner

#60
20180313034
2018-11-01

Fractionating and refining system for engineering fibers to improve paper production

#61
20180305870
2018-10-25

Processing device, sheet manufacturing device, processing method, and method for manufacturing sheet

#62
20180291556
2018-10-11

Method for engineering fibers to improve paper production

#63
20180274173
2018-09-27

MICROFIBRILLATED CELLULOSE

#64
20180237990
2018-08-23

METHOD AND APPARATUS FOR PRODUCING MICROFIBRILLATED CELLULOSE FIBER

#65
20180105986
2018-04-19

Method for production of filler loaded surface enhanced pulp fibers

#66
20180002864
2018-01-04

Multi-density tissue towel products comprising high-aspect-ratio cellulose filaments

#67
20170335516
2017-11-23

Sheet manufacturing apparatus

#68
20170218570
2017-08-03

Method for Making Lignocellulosic Paper and Paper Products

#69
20170145634
2017-05-25

COMPOSITE PAPER PULP COMPOSITION AND METHOD OF MAKING

#70
20170121908
2017-05-04

Microfibrillated cellulose

#71
20170107666
2017-04-20

Method for producing fibrillated cellulose

#72
20170022662
2017-01-26

Method for processing grass for manufacturing paper, paperboard and cardboard

#73
20160355977
2016-12-08

Refiner

#74
20160340802
2016-11-24

Surface enhanced pulp fibers, methods of making surface enhanced pulp fibers, products incorporating surface enhanced pulp fibers, and methods of making products incorporating surface enhanced pulp fibers

#75
20160333524
2016-11-17

Surface enhanced pulp fibers, methods of making surface enhanced pulp fibers, products incorporating surface enhanced pulp fibers, and methods of making products incorporating surface enhanced pulp fibers

#76
20160102433
2016-04-14

Method and a device for producing nanofibrillar cellulose

#77
20160053437
2016-02-25

Paper filler composition

#78
20150337493
2015-11-26

Method of producing microfibrillated cellulose

#79
20150211188
2015-07-30

High yield and enhanced performance fiber

#80
20150122431
2015-05-07

Method of manufacturing pulp for corrugated medium

#81
20150118431
2015-04-30

Process for manufacturing a composite article comprising cellulose pulp fibers and a thermoplastic matrix

#82
20150111997
2015-04-23

Process for manufacturing a composition comprising cellulose pulp fibers and thermoplastic fibers

#83
20150057442
2015-02-26

METHOD AND APPARATUS FOR FIBRILLATION OF CELLULOSE CONTAINING MATERIALS

#84
20140284407
2014-09-25

Method for producing nanofibrillar cellulose

#85
20140124150
2014-05-08

Method for production of micro fibrillated cellulose

#86
20140083634
2014-03-27

Method and an apparatus for producing nanocellulose

#87
20140083633
2014-03-27

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

#88
20140057105
2014-02-27

Surface enhanced pulp fibers, methods of making surface enhanced pulp fibers, products incorporating surface enhanced pulp fibers, and methods of making products incorporating surface enhanced pulp fibers

#89
20140000824
2014-01-02

FREENESS OF PAPER PRODUCTS

#90
20130126111
2013-05-23

FREENESS OF PAPER PRODUCTS

#91
20130126109
2013-05-23

Silicate Free Refiner Bleaching

#92
20130017394
2013-01-17

High aspect ratio cellulose nanofilaments and method for their production

#93
20120255691
2012-10-11

Procedure For Controlling The Pulp Quality From Refiners

#94
20120090798
2012-04-19

Method of making paper

#95
20120012031
2012-01-19

Paper filler method

#96
20110259537
2011-10-27

Paper filler composition

#97
20100212851
2010-08-26

Para-aramid pulp including meta-aramid fibrids and processes of making same

#98
20090047497
2009-02-19

GRASS (HERBACEOUS PLANT) FIBER

#99
20080057307
2008-03-06

Process for producing nanofibers

#100
20080054107
2008-03-06

Process for producing fibrillated fibers

#101
20080029232
2008-02-07

Process and Device to Manufacture Cellulose Pulp

#102
20070137818
2007-06-21

Para-aramid pulp including meta-aramid fibrids and processes of making same

#103
20070119557
2007-05-31

Method and system for energy savings in TMP by high temperature LC/MC refining of pulp

#104
20060186233
2006-08-24

Method for producing a fibrous material

#105
20060180684
2006-08-17

Method of refining wood chips or pulp in a high consistency conical disc refiner

#106
20060108083
2006-05-25

Process and device to disperge a recycled fibre pulp

#107
20060100823
2006-05-11

System and method for estimating production and feed consistency disturbances

#108
20050194477
2005-09-08

Method and apparatus for manufacturing microfibrillated cellulose fiber

#109
20050000666
2005-01-06

Use of hemicellulase composition in mechanical pulp production

#110
15242501
2018-08-07

System for engineering fibers to improve paper production