ClassID:

126992

D21H21/04 - CPC Classification

Classification description:

Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties; Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control Slime-control agents

Recent Application in this class:
#1
20250198086
2025-06-19

Biocide control in paper making

#2
20240279875
2024-08-22

METHOD FOR CONTROLLING SLIME IN A PULP OR PAPER MAKING PROCESS

#3
20230212822
2023-07-06

METHOD FOR CONTROLLING SLIME IN A PULP OR PAPER MAKING PROCESS

#4
20220325473
2022-10-13

Method for suppressing sedimentation of suspended substance, method for suppressing pitch trouble, and method for detecting sedimentation of suspended substance

#5
20220056641
2022-02-24

Method for controlling growth of microorganisms and/or biofilms in an industrial process

#6
20210214895
2021-07-15

Method for producing paper

#7
20200199818
2020-06-25

Method for controlling growth of microorganisms and/or biofilms in an industrial process

#8
20200095730
2020-03-26

Method for manufacturing a fibrous web

#9
20180363247
2018-12-20

Polymer for pitch and stickies deposition control in papermaking

#10
20170009100
2017-01-12

Methods for inhibiting the deposition of organic contaminates in pulp and papermaking systems

#11
20150345080
2015-12-03

Method of using an anti-soiling agent composition

#12
20150284908
2015-10-08

Methods of preserving starch in pulp and controlling calcium precipitation and/or scaling

#13
20150000853
2015-01-01

Device and method for monitoring biocide dosing in a machine

#14
20140246160
2014-09-04

Method to preserve native starch present in pulp in a papermaking process

#15
20140206805
2014-07-24

Anti-soiling agent composition

#16
20140141443
2014-05-22

Detection and quantification of nucleic acid to assess microbial biomass in paper defects and machine felts

#17
20130319627
2013-12-05

Methods of preserving starch in pulp and controlling calcium precipitation and/or scaling

#18
20130186582
2013-07-25

Detection and quantification of nucleic acid to assess microbial biomass in paper defects and machine felts

#19
20120160779
2012-06-28

Control of development of biofilms in industrial process water

#20
20110229586
2011-09-22

Control of development of biofilms in industrial process water

#21
20100147476
2010-06-17

Hydrophobically modified poly(aminoamides)

#22
20100096340
2010-04-22

Control of development of biofilms in industrial process water

#23
20090294082
2009-12-03

Prevention of bacterial spore formation in a broke system of a board machine

#24
20090050575
2009-02-26

Control of development of biofilms in industrial process water

#25
20090047208
2009-02-19

Method of forming hypobromous acid in aqueous system

#26
20080203034
2008-08-28

Method of Inhibiting the Growth of Microorganisms

#27
20070134649
2007-06-14

Method for monitoring the presence of biofilmforming microorganisms in paper industry

#28
20060283568
2006-12-21

Method for reducing slime production and mixture making the same

#29
20060138058
2006-06-29

Control of development of biofilms in industrial process water

#30
20060049119
2006-03-09

Method for removal of biofilm