ClassID:

126395

D21C9/1005 - 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; Bleaching ; Apparatus therefor Pretreatment of the pulp, e.g. degassing the pulp

Recent Application in this class:
#1
20250101681
2025-03-27

ARRANGEMENT AND METHOD FOR DEGASSING A PUMP

#2
20230265609
2023-08-24

HIGH YIELD CHEMICAL PULPING AND BLEACHING PROCESS

#3
20220081833
2022-03-17

PREPARATION OF CELLULOSE FIBERS

#4
20220025578
2022-01-27

Arrangement and method for degassing a pump

#5
20210254280
2021-08-19

Method for producing bleached wood fibre material

#6
20210207321
2021-07-08

METHOD FOR TREATING DISSOLVING PULP

#7
20210062419
2021-03-04

Method For Preparing Dissolving Pulp By Totally Chlorine-Free Bleaching Of Poplar Kraft Pulp

#8
20210017704
2021-01-21

High consistency re-pulping method, apparatus and absorbent products incorporating recycled fiber

#9
20200240078
2020-07-30

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

#10
20200173103
2020-06-04

METHOD FOR PRODUCING ACETATE GRADE DISSOLVING PULP FROM POPLAR RESIDUAL SLABS

#11
20190345672
2019-11-14

Method for bleaching paper pulp

#12
20190024307
2019-01-24

WATER-SOLUBLE REGENERATED FIBER PRODUCTION FROM CALLUNA VULGARIS PLANT SPECIES

#13
20180347111
2018-12-06

High consistency re-pulping method, apparatus and absorbent products incorporating recycled fiber

#14
20180216292
2018-08-02

Method for producing bleached wood fibre material

#15
20180117541
2018-05-03

High speed injector with two stage turbulence flap

#16
20170096774
2017-04-06

Measurement apparatus and method

#17
20130105100
2013-05-02

Method and composition for enzymatic treatment of fiber for papermaking, and paper products made therewith

#18
20100163193
2010-07-01

Process for the bleaching of mechanical paper pulp

#19
20070246176
2007-10-25

Pulp Bleaching Processes

#20
20060201642
2006-09-14

Methods of treating chemical cellulose pulp

#21
20060130984
2006-06-22

Method for bleaching fibrous materials

#22
20050051288
2005-03-10

Extended retention and medium consistency pulp treatment