ClassID:

127039

D21H23/34 - CPC Classification

Classification description:

Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added; Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper Knife or blade type coaters

Sub-classes:
Recent Application in this class:
#1
20250369191
2025-12-04

HEAT SEALABLE BARRIER MATERIAL

#2
20240426058
2024-12-26

METHOD FOR PRODUCING DECORATIVE PAPER

#3
20230366152
2023-11-16

METHOD

#4
20230366151
2023-11-16

NITROCELLULOSE PAPERS AND METHODS OF PRODUCTION AND USE

#5
20230175206
2023-06-08

BARRIER RECYCLED PAPERBOARD AND METHOD FOR MANUFACTURING THEREOF

#6
20230074973
2023-03-09

Water-dispersible composite structure and method of producing the same

#7
20220316140
2022-10-06

MICROFIBRILLATED COATING COMPOSITIONS, PROCESSES AND APPLICATORS THEREFOR

#8
20210310196
2021-10-07

Water-dispersible composite structure and method of producing the same

#9
20200109517
2020-04-09

Oil and grease resistant paperboard

#10
20190226141
2019-07-25

Bio-based polyelectrolyte complex compositions comprising non-water soluble particles

#11
20190161914
2019-05-30

Oil and grease resistant paperboard

#12
20190112765
2019-04-18

Masked coating blade

#13
20180202106
2018-07-19

Printable compostable paperboard

#14
20180016748
2018-01-18

Lubricant applicator and method for lubricating a backing drum and apparatus

#15
20180016747
2018-01-18

Textile printing paper for use in paper printing method

#16
20180016744
2018-01-18

Textile printing paper for use in paper printing method

#17
20170328005
2017-11-16

Printable compostable paperboard

#18
20170002517
2017-01-05

Printable compostable paperboard

#19
20160340833
2016-11-24

Compostable paperboard with oil, grease, and moisture resistance

#20
20160230343
2016-08-11

Oil, grease, and moisture resistant paperboard

#21
20150152604
2015-06-04

Dimensionally stable paper and production method thereof

#22
20130174779
2013-07-11

Blade coating

#23
20130064968
2013-03-14

Method and apparatus for controlling a coating head, and a coating head

#24
20100136355
2010-06-03

COATING COMPOSITION FOR PAPERS PROVIDING EXCELLENT WATER VAPOR BARRIER PROPERTIES

#25
20090324980
2009-12-31

Process for Producing Coated Paper and Coated Paper

#26
20090151883
2009-06-18

Method of manufacturing coated paper

#27
20070235152
2007-10-11

On-machine coater

#28
20060187436
2006-08-24

Method and system for improving focus accuracy in a lithography system

#29
20060150900
2006-07-13

Apparatus for decreasing skip coating on a paper web

#30
20050284365
2005-12-29

Application device

#31
20050284364
2005-12-29

Application device

#32
20050128456
2005-06-16

Method and systems for improving focus accuracy in a lithography system