ClassID:

126300

D21B1/04 - CPC Classification

Classification description:

Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres

Sub-classes:
Recent Application in this class:
#1
20260124782
2026-05-07

METHOD AND ARRANGEMENT FOR FEEDBACK BASED CONTROL IN CHEMICAL REFINING OF WOOD

#2
20250154719
2025-05-15

PRODUCTION OF CELLULOSE FROM COTTON OR COTTON BLENDS

#3
20250137199
2025-05-01

PURIFIED MEDICINAL CANNABIS NON-HEMP HURD FIBER, AND ARTICLES CONTAINING THE SAME

#4
20230250585
2023-08-10

USED PAPER RECYCLING APPARATUS

#5
20220097252
2022-03-31

METHOD AND ARRANGEMENT FOR FEEDBACK BASED CONTROL IN CHEMICAL REFINING OF WOOD

#6
20210363700
2021-11-25

STARCH COMPOSITE FOR BINDING FIBERS, FIBER STRUCTURE, AND FIBER STRUCTURE-MANUFACTURING APPARATUS

#7
20210261781
2021-08-26

PROCESS FOR THE PRODUCTION OF NANO-FIBRILLAR CELLULOSE GELS

#8
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

#9
20210148046
2021-05-20

Purified medicinal cannabis non-hemp hurd fiber, and articles containing the same

#10
20200270814
2020-08-27

Defibrated material manufacturing device, and sheet manufacturing apparatus

#11
20190276672
2019-09-12

Process for the production of nano-fibrillar cellulose gels

#12
20190264385
2019-08-29

Methods for preparing cannabis hurd fiber, purified cannabis hurd fiber, and articles containing the purified cannabis hurd fiber

#13
20190153673
2019-05-23

Tobacco-derived nanocellulose material

#14
20190136451
2019-05-09

Classifying device and fibrous feedstock recycling device

#15
20190040581
2019-02-07

Process for producing microfibrillated cellulose and a product thereof

#16
20190032280
2019-01-31

Defibrated material manufacturing device, and sheet manufacturing apparatus

#17
20180266053
2018-09-20

Tobacco-derived nanocellulose material

#18
20180215774
2018-08-02

Low temperature and efficient fractionation of lignocellulosic biomass using recyclable organic solid acids

#19
20180010298
2018-01-11

Apparatus and method for conditioning bamboo or vegetable cane fiber

#20
20170145634
2017-05-25

COMPOSITE PAPER PULP COMPOSITION AND METHOD OF MAKING

#21
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

#22
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

#23
20160333519
2016-11-17

Methods of reducing the size of lignocellulosic material, and related systems

#24
20160264499
2016-09-15

Conversion of a low viscosity ligno-cellulosic biomass slurry into polyols

#25
20160130369
2016-05-12

FRACTIONATION PROCESSES FOR HIGH-ASH LIGNOCELLULOSIC BIOMASS FEEDSTOCKS

#26
20140370179
2014-12-18

Process for the production of nano-fibrillar cellulose gels

#27
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

#28
20130147080
2013-06-13

Articles containing nanofibers produced from low melt flow rate polymers

#29
20130102022
2013-04-25

PLANTS WITH ALTERED CELL WALL BIOSYNTHESIS AND METHODS OF USE

#30
20130004757
2013-01-03

Articles containing nanofibers produced from low melt flow rate polymers

#31
20120107480
2012-05-03

Process for the production of nano-fibrillar cellulose gels

#32
20120097773
2012-04-26

FIBROUS MATERIALS AND COMPOSITES

#33
20120085506
2012-04-12

Paper product and process for making same

#34
20110272507
2011-11-10

Fibrous materials and composites

#35
20110094691
2011-04-28

PROCESS FOR REGENERATING POST-CONSUMER AND POST-INDUSTRIAL FIBERS

#36
20100224333
2010-09-09

METHOD AND CHEMICAL COMPOSITION TO IMPROVE EFFICIENCY OF MECHANICAL PULP

#37
20080206541
2008-08-28

Fibrous materials and composites

#38
20080146701
2008-06-19

Manufacturing process of cellulose nanofibers from renewable feed stocks

#39
20060283990
2006-12-21

Method and apparatus for mechanical defibration of wood

#40
17407125
2022-11-08

Method for dissolving lignocellulosic biomass