ClassID:

126423

D21C9/166 - 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 with per compounds with peracids

Recent Application in this class:
#1
20250116064
2025-04-10

Bleaching Trichomes to Remove Proteins

#2
20240052567
2024-02-15

Bleaching trichomes to remove proteins

#3
20230167604
2023-06-01

High efficiency fiber bleaching process

#4
20220349123
2022-11-03

Bleaching trichomes to remove proteins

#5
20220259803
2022-08-18

Methods of microbial control

#6
20210388561
2021-12-16

Methods of pulp fiber treatment

#7
20210032812
2021-02-04

BLEACHING AND SHIVE REDUCTION PROCESS FOR NON-WOOD FIBERS

#8
20200199000
2020-06-25

Methods of paper mill processing using recycled white water with microbial control

#9
20200002887
2020-01-02

Bleaching trichomes to remove proteins

#10
20190249363
2019-08-15

METHOD FOR EXTRACTING CELLUSOSE, HEMICELLULOSE AND LIGNIN FROM LIGNOCELLULOSE FROM PLANT BIOMASS

#11
20190186075
2019-06-20

Process for treating pulp

#12
20190031545
2019-01-31

Methods of pulp fiber treatment

#13
20170335515
2017-11-23

Methods of pulp fiber treatment

#14
20170159237
2017-06-08

METHODS OF PULP FIBER TREATMENT

#15
20170158537
2017-06-08

Methods of microbial control

#16
20160298294
2016-10-13

Method for delignifying and bleaching pulp

#17
20160257982
2016-09-08

Post-treatment to enhance the enzymatic hydrolysis of pretreated lignocellulosic biomass

#18
20150337496
2015-11-26

Bleaching and shive reduction process for non-wood fibers

#19
20130261182
2013-10-03

Enzymes useful for peracid production

#20
20130102672
2013-04-25

Perhydrolase variant providing improved specific activity

#21
20130102664
2013-04-25

Perhydrolase variant providing improved specific activity

#22
20120156158
2012-06-21

Perhydrolase variant providing improved specific activity

#23
20120156156
2012-06-21

Perhydrolase variant providing improved specific activity

#24
20120156155
2012-06-21

Perhydrolase variant providing improved specific activity

#25
20110236336
2011-09-29

Perhydrolase providing improved specific activity

#26
20100243183
2010-09-30

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

#27
20090054289
2009-02-26

Bleach systems enveloped with polymeric layers

#28
20090032207
2009-02-05

Process for producing mechanical pulp suitable for paper or cardboard making

#29
20080087390
2008-04-17

MULTI-STEP PULP BLEACHING

#30
20070246177
2007-10-25

Activator for Pulp Bleaching