Patents-Review.com
ClassID:

126406 ⎘

D21C9/1063 - 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 compounds not otherwise provided for, e.g. activated gases

Recent Application in this class:
#1
20260109646
2026-04-23

COLLAPSIBLE ENGAGEMENT MECHANISM

 #2
20250146219
2025-05-08

HIGH BRIGHTNESS NON-WOOD PULP

 #3
20250012010
2025-01-09

NON-WOOD PULP HAVING HIGH BRIGHTNESS AND LOW DEBRIS

 #4
20240336526
2024-10-10

Crystalline Cellulose Reinforced Cement

 #5
20240018723
2024-01-18

Non-wood pulp having high brightness and low debris

 #6
20230407562
2023-12-21

High brightness non-wood pulp

 #7
20230383467
2023-11-30

CROSSLINKED KRAFT PULP COMPOSITIONS AND METHOD

 #8
20230167604
2023-06-01

High efficiency fiber bleaching process

 #9
20230016500
2023-01-19

COLLAPSIBLE ENGAGEMENT MECHANISM

 #10
20220259803
2022-08-18

Methods of microbial control

 #11
20210388561
2021-12-16

Methods of pulp fiber treatment

 #12
20210284935
2021-09-16

Enhanced peroxygen stability in multi-dispense TAED-containing peroxygen solid

 #13
20210254280
2021-08-19

Method for producing bleached wood fibre material

 #14
20210079594
2021-03-18

High efficiency fiber bleaching process

 #15
20200079692
2020-03-12

Crystalline cellulose reinforced cement

 #16
20200077790
2020-03-12

Collapsible engagement mechanism

 #17
20200002891
2020-01-02

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

 #18
20190203159
2019-07-04

Enhanced peroxygen stability in multi-dispense TAED-containing peroxygen solid

 #19
20180245285
2018-08-30

METHODS OF PRODUCING A PAPER PRODUCT

 #20
20180216292
2018-08-02

Method for producing bleached wood fibre material

 #21
20180187372
2018-07-05

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

 #22
20180155871
2018-06-07

METHODS FOR BLEACHING AQUEOUS PULPS AND COMPOSITIONS FOR USE IN THESE METHODS

 #23
20170306557
2017-10-26

Methods of producing a paper product

 #24
20170247833
2017-08-31

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

 #25
20160289606
2016-10-06

Enhanced peroxygen stability in multi-dispense TAED-containing peroxygen solid

 #26
20160237618
2016-08-18

ENZYMATIC BLEACHING OF PAPER PULP

 #27
20160237411
2016-08-18

Laccases for bio-bleaching

 #28
20160222368
2016-08-04

Compositions and Methods Comprising LG12-CLADE Protease Variants

 #29
20160168791
2016-06-16

Methods of producing a paper product

 #30
20150125936
2015-05-07

Laccases for bio-bleaching

 #31
20140203212
2014-07-24

Fluorescent whitening agent aqueous solutions

 #32
20130126110
2013-05-23

Laccases for bio-bleaching

 #33
20110294166
2011-12-01

Thermostable enzymes for the hydrolysis of mannan-containing polysaccharides

 #34
20100018658
2010-01-28

Laccases for bio-bleaching

 #35
20090101296
2009-04-23

Near neutral chlorine dioxide bleaching of pulp

 #36
20070079944
2007-04-12

Product and processes from an integrated forest biorefinery