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Processes or apparatus for adding material to the pulp or to the paper
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CPC
D21H23/00
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
D
TEXTILES PAPER
D21
Papermaking
D21H
PULP COMPOSITIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D IMPREGNATING OR COATING OF PAPER TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G PAPER NOT OTHERWISE PROVIDED FOR
Current Industry
D21H23/00
Processes or apparatus for adding material to the pulp or to the paper
Sub Industries
D21H23/02
characterised by the manner in which substances are added
D21H23/04
Addition to the pulp After-treatment of added substances in the pulp
D21H23/06
Controlling the addition
D21H23/08
by measuring pulp properties
D21H23/10
at least two kinds of compounds being added
D21H23/12
by measuring properties of the formed web
D21H23/14
by selecting point of addition or time of contact between components
D21H23/16
Addition before or during pulp beating or refining
D21H23/18
Addition at a location where shear forces are avoided before sheet-forming
D21H23/20
Apparatus therefor
D21H23/22
Addition to the formed paper
D21H23/24
during paper manufacture
D21H23/26
by selecting point of addition or moisture content of the paper
D21H23/28
Addition before the dryer section
D21H23/30
Pretreatment of the paper
D21H23/32
by contacting paper with an excess of material
D21H23/34
Knife or blade type coaters
D21H23/36
Knife or blade forming part of the fluid reservoir
D21H23/38
the fluid material being applied with a special device
D21H23/40
only one side of the paper being in contact with the material
D21H23/42
Paper being at least partly surrounded by the material on both sides
D21H23/44
Treatment with a gas or vapour
D21H23/46
Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
D21H23/48
Curtain coaters
D21H23/50
Spraying or projecting
D21H23/52
by contacting paper with a device carrying the material
D21H23/54
Rubbing devices
D21H23/56
Rolls
D21H23/58
Details thereof
D21H23/60
the material on the applicator roll being subjected to a particular treatment before applying to the paper
D21H23/62
Reverse roll coating
D21H23/64
the material being non-fluent at the moment of transfer
D21H23/66
Treating discontinuous paper
D21H23/68
whereby the paper moves continuously
D21H23/70
Multistep processes Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
D21H23/72
Plural serial stages only
D21H23/74
Apparatus permitting switching from one technique to another
D21H23/76
characterised by choice of auxiliary compounds which are added separately from at least one other compound
D21H23/765
Addition of all compounds to the pulp
D21H23/78
Controlling or regulating not limited to any particular process or apparatus
Industries
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Patents Grants
last 30 patents
Information
Patent Grant
Method of processing cannabis
Patent number
11,986,008
Issue date
May 21, 2024
David Addington
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Thermal paper, and methods and systems for forming the same
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11,958,308
Issue date
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G13 INNOVATION IN PRODUCTION LTD
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
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11,952,718
Issue date
Apr 9, 2024
Stora Enso Oyj
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Patent number
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Issue date
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Method for producing paper
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Issue date
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Issue date
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KNU - Industry Cooperation Foundation
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Paper enhancing compositions, uses thereof and enhanced paper
Patent number
11,905,663
Issue date
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Patent number
11,885,071
Issue date
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SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Zhaoqing Lu
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Water-dispersible composite structure and method of producing the same
Patent number
11,885,072
Issue date
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Paptic Oy
Karita Kinnunen-Raudaskoski
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Information
Patent Grant
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Patent number
11,859,348
Issue date
Jan 2, 2024
Seiko Epson Corporation
Masahide Nakamura
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Inline dilution of microfibrillated cellulose
Patent number
11,851,818
Issue date
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Borregaard AS
Anne Opstad
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for manufacturing paper barrier base material
Patent number
11,834,791
Issue date
Dec 5, 2023
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Kenta Watanabe
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Paper strength improvement using metal chelates and synthetic catio...
Patent number
11,834,792
Issue date
Dec 5, 2023
Kemira Oyj
Clayton Campbell
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for production of film comprising microfibrillated cellulose
Patent number
11,834,793
Issue date
Dec 5, 2023
Stora Enso Oyj
Kaj Backfolk
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Curtain applicator
Patent number
11,833,540
Issue date
Dec 5, 2023
Voith Patent GmbH
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B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Compositions and methods for pretreating substrates for the subsequ...
Patent number
11,827,806
Issue date
Nov 28, 2023
EXCOR Korrosionsforschung GmbH
Georg Reinhard
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Information
Patent Grant
Fire resistant retail product packaging materials and method of man...
Patent number
11,828,027
Issue date
Nov 28, 2023
Packaging and Crating Technologies, LLC
Rodger A. Mort
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Manufacturing process of intermittent coating release paper
Patent number
11,814,796
Issue date
Nov 14, 2023
Foshan XinFei Hygiene Materials Co., Ltd.
Fanfei Mu
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Method for producing paper or cardboard
Patent number
11,795,255
Issue date
Oct 24, 2023
Solenis Technologies, L.P.
Hans-Joachim Haehnle
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for depositing a cellulosic fiber composition on a substrate
Patent number
11,795,621
Issue date
Oct 24, 2023
Kadant LaMort
Alain Lascar
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Paper substrates incorporating covert marking pigments, and process...
Patent number
11,788,231
Issue date
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International Paper Company
David Verd Reed
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Paper enhancing compositions, uses thereof and enhanced paper
Patent number
11,767,640
Issue date
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ITI Technologies, Inc.
David H. Creasey
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Sheet manufacturing method and sheet manufacturing apparatus
Patent number
11,753,769
Issue date
Sep 12, 2023
Seiko Epson Corporation
Masahide Nakamura
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Device for applying a treatment substance
Patent number
11,718,961
Issue date
Aug 8, 2023
Andritz Kusters GmbH
Eduard Davydenko
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Smooth and low density paperboard structures and methods for manufa...
Patent number
11,697,908
Issue date
Jul 11, 2023
WestRock MWV, LLC
Sergio A. Giuste
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of manufacturing of a foam-formed cellulosic fibre-material,...
Patent number
11,692,313
Issue date
Jul 4, 2023
Tetra Laval Holdings & Finance S.A.
Mats Aldén
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Pulp quality monitoring
Patent number
11,692,312
Issue date
Jul 4, 2023
Kemira Oyj
Marjatta Piironen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing multi-layer paper
Patent number
11,680,371
Issue date
Jun 20, 2023
Solenis Technologies, L.P.
Christoph Hamers
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Fiber body forming method and fiber body forming apparatus
Patent number
11,680,372
Issue date
Jun 20, 2023
Seiko Epson Corporation
Tetsuya Aoyama
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus for coating a drinking straw
Patent number
11,673,158
Issue date
Jun 13, 2023
Jon Kyle Lavender
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
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last 30 patents
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SYSTEMS AND METHODS FOR PRODUCTION OF STARCH-LOADED FIBRILLATED FIBERS
Publication number
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Publication date
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Publication date
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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20240167226
Publication date
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Information
Patent Application
A METHOD FOR COATING A HOLLOW CONTAINER COMPRISING MOLDED PULP
Publication number
20240167228
Publication date
May 23, 2024
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Information
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A METHOD FOR PROVIDING A NON-UNIFORM BARRIER COATING ON A HOLLOW CO...
Publication number
20240167229
Publication date
May 23, 2024
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Information
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BARRIER COATINGS APPLIED TO NANOCELLULOSE-COATED PAPER AND PAPERBOARD
Publication number
20240167227
Publication date
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
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Spray N Wipe
Publication number
20240130577
Publication date
Apr 25, 2024
TomAnthony Ibarrondo
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Information
Patent Application
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Publication number
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Publication date
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
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Publication number
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Publication date
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
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Publication number
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Publication date
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Patent Application
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Publication number
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Publication date
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Publication number
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Publication date
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B32 - LAYERED PRODUCTS
Information
Patent Application
METHOD FOR MANUFACTURING MOLDED PRODUCT
Publication number
20240093432
Publication date
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
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Publication number
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Publication date
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Publication number
20240084513
Publication date
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
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Publication number
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Publication date
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ECOLAB USA INC.
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
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Publication number
20240052575
Publication date
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
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Publication number
20240044082
Publication date
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Information
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Publication number
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Publication date
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Patent Application
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Publication number
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Publication date
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Publication date
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Information
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Publication number
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Publication date
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Patent Application
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Publication number
20240018724
Publication date
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Information
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Publication number
20240011222
Publication date
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Information
Patent Application
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20240003090
Publication date
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Shigemi WAKABAYASHI
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Information
Patent Application
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Publication number
20240006593
Publication date
Jan 4, 2024
KABEL PREMIUM PULP & PAPER GMBH
Ludger ZERWES
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
BARRIER FILM FOR PACKAGING MATERIAL
Publication number
20230416992
Publication date
Dec 28, 2023
STORA ENSO OYJ
Isto Heiskanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING A GREEN PAPER FOR PRODUCING A GAS DIFFUSION LA...
Publication number
20230411632
Publication date
Dec 21, 2023
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
Mario KELLER
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ELECTRICALLY CONDUCTIVE SMART PAPERS
Publication number
20230407570
Publication date
Dec 21, 2023
University of Washington
Anthony B. Dichiara
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
ENHANCED CELLULOSE NANOFIBRILS (CNF)
Publication number
20230407569
Publication date
Dec 21, 2023
GREENTECH GLOBAL PTE. LTD.
Michael Albert BILODEAU
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE