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Addition before the dryer section
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CPC
D21H23/28
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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
D21H23/00
Processes or apparatus for adding material to the pulp or to the paper
Current Industry
D21H23/28
Addition before the dryer section
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Patents Grants
last 30 patents
Information
Patent Grant
Paperboard and a method of producing a paperboard
Patent number
11,952,718
Issue date
Apr 9, 2024
Stora Enso Oyj
Frank Peng
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Water-dispersible composite structure and method of producing the same
Patent number
11,885,072
Issue date
Jan 30, 2024
Paptic Oy
Karita Kinnunen-Raudaskoski
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
Water-dispersible composite structure and method of producing the same
Patent number
11,512,434
Issue date
Nov 29, 2022
Paptic Oy
Karita Kinnunen-Raudaskoski
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Surface enhanced pulp fibers at a substrate surface
Patent number
11,473,245
Issue date
Oct 18, 2022
Domtar Paper Company LLC
Bruno Marcoccia
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for manufacturing a multi-layered paperboard, multi-layered...
Patent number
11,365,517
Issue date
Jun 21, 2022
Kemira Oyj
Matti Hietaniemi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Fibrous product
Patent number
11,168,444
Issue date
Nov 9, 2021
ESSITY HYGIENE AND HEALTH AKTIEBOLAG
Ulrika Husmark
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Absorbent article and method of manufacturing the same
Patent number
10,918,538
Issue date
Feb 16, 2021
Daio Paper Corporation
Takeshi Kurohara
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Ink fixative solutions
Patent number
10,914,036
Issue date
Feb 9, 2021
Hewlett-Packard Development Company, L.P.
Christopher Toles
B32 - LAYERED PRODUCTS
Information
Patent Grant
Sizing method for making paper and paper prepared thereof
Patent number
10,889,939
Issue date
Jan 12, 2021
Ecolab USA Inc.
Zhi Chen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing paper
Patent number
10,626,558
Issue date
Apr 21, 2020
Solenis Technologies, L.P.
Anton Esser
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Manufacturing method for a film or product comprising an amphiphili...
Patent number
10,358,772
Issue date
Jul 23, 2019
Stora Enso Oyj
Isto Heiskanen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Sheet manufacturing apparatus
Patent number
10,272,623
Issue date
Apr 30, 2019
Seiko Epson Corporation
Naotaka Higuchi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Compositions and methods of making paper products
Patent number
10,196,779
Issue date
Feb 5, 2019
Kemira Oyj
Scott Rosencrance
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing a mat of cellulose fibres with a controlled le...
Patent number
9,963,830
Issue date
May 8, 2018
ONDULINE
Waldemar Wiktorski
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Sheet manufacturing apparatus, sheet manufacturing method, and sheet
Patent number
9,776,365
Issue date
Oct 3, 2017
Seiko Epson Corporation
Naotaka Higuchi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Compositions and methods of making paper products
Patent number
9,777,434
Issue date
Oct 3, 2017
KEMIRA DYJ
Scott Rosencrance
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Volatile debonder formulations for papermaking
Patent number
9,273,432
Issue date
Mar 1, 2016
NanoPaper, LLC
Gangadhar Jogikalmath
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Volatile debonder formulations for papermaking
Patent number
8,747,615
Issue date
Jun 10, 2014
NanoPaper, LLC
Gangadhar Jogikalmath
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Methods of making a non-woven fire barrier mat
Patent number
8,568,563
Issue date
Oct 29, 2013
Jonhs Manville
Glenda Beth Bennett
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of making coated mat online
Patent number
7,462,259
Issue date
Dec 9, 2008
Johns Mnaville
Richard Emil Kajander
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Making foam coated mats on-line
Patent number
7,285,183
Issue date
Oct 23, 2007
Johns Manville
Richard Emil Kajander
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Starch and fiber mixture for papermaking and methods of making pape...
Patent number
7,226,526
Issue date
Jun 5, 2007
Corn Products International, Inc.
Philip Strong
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for incorporating feature substances into a paper web
Patent number
7,175,739
Issue date
Feb 13, 2007
Giesecke & Devrient GmbH
Thomas Attenberger
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Starch and fiber mixture for papermaking and methods of making pape...
Patent number
7,011,729
Issue date
Mar 14, 2006
Corn Products International, Inc.
Philip Strong
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus for handling a paper or board web
Patent number
6,994,771
Issue date
Feb 7, 2006
Metso Paper, Inc.
Hannu Korhonen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus for incorporating feature substances into a paper web
Patent number
6,936,138
Issue date
Aug 30, 2005
Giesecke & Devrient GmbH
Thomas Attenberger
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Tissue products containing a flexible binder
Patent number
6,893,537
Issue date
May 17, 2005
Kimberly-Clark Worldwide, Inc.
Thomas G. Shannon
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method of making foam coated mat online
Patent number
6,875,308
Issue date
Apr 5, 2005
Johns Manville International, Inc.
Richard Emil Kajander
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Coated nonwoven fiber mat
Patent number
6,723,670
Issue date
Apr 20, 2004
Johns Manville International, Inc.
Richard Emil Kajander
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR MANUFACTURING A BARRIER FILM COMPRISING HIGHLY REFINED C...
Publication number
20240229358
Publication date
Jul 11, 2024
STORA ENSO OYJ
Isto Heiskanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR MANUFACTURING A BARRIER FILM COMPRISING HIGHLY REFINED C...
Publication number
20240133118
Publication date
Apr 25, 2024
STORA ENSO OYJ
Isto Heiskanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
STRENGTH IMPROVEMENT VIA SPRAYBOOM APPLICATION
Publication number
20230313467
Publication date
Oct 5, 2023
ECOLAB USA INC.
David Steven JORDAN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Water-dispersible composite structure and method of producing the same
Publication number
20230074973
Publication date
Mar 9, 2023
Paptic Oy
Karita Kinnunen-Raudaskoski
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SURFACE ENHANCED PULP FIBERS AT A SUBSTRATE SURFACE
Publication number
20230035105
Publication date
Feb 2, 2023
Domtar Paper Company, LLC
Bruno MARCOCCIA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
A METHOD OF MAKING A CELLULOSE FILM COMPRISING MICROFIBRILLATED CEL...
Publication number
20230002572
Publication date
Jan 5, 2023
STORA ENSO OYJ
Otto Nylén
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
A PAPERBOARD AND A METHOD OF PRODUCING A PAPERBOARD
Publication number
20220074144
Publication date
Mar 10, 2022
STORA ENSO OYJ
Frank Peng
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Water-dispersible composite structure and method of producing the same
Publication number
20210310196
Publication date
Oct 7, 2021
Paptic Oy
Karita Kinnunen-Raudaskoski
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
FIBROUS PRODUCT
Publication number
20210189654
Publication date
Jun 24, 2021
Ulrika Husmark
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS FOR PRODUCTION OF FILM COMPRISING MICROFIBRILLATED CELLULOSE
Publication number
20210054570
Publication date
Feb 25, 2021
STORA ENSO OYJ
Kaj Backfolk
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method for manufacturing a multi-layered paperboard, multi-layered...
Publication number
20210002830
Publication date
Jan 7, 2021
KEMIRA OYJ
Matti Hietaniemi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SURFACE ENHANCED PULP FIBERS AT A SUBSTRATE SURFACE
Publication number
20200325629
Publication date
Oct 15, 2020
Domtar Paper Company, LLC
Bruno MARCOCCIA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
MANUFACTURING METHOD FOR A FILM OR PRODUCT COMPRISING AN AMPHIPHILI...
Publication number
20180355557
Publication date
Dec 13, 2018
STORA ENSO OYJ
Isto Heiskanen
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Paper-Making Aid Composition and Process for Increasing Tensile Str...
Publication number
20180298556
Publication date
Oct 18, 2018
ECOLAB USA INC.
Na Xu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING PAPER
Publication number
20180216294
Publication date
Aug 2, 2018
BASF SE
Anton Esser
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SHEET MANUFACTURING APPARATUS
Publication number
20180043644
Publication date
Feb 15, 2018
SEIKO EPSON CORPORATION
Naotaka HIGUCHI
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
ABSORBENT ARTICLE AND METHOD OF MANUFACTURING THE SAME
Publication number
20180014986
Publication date
Jan 18, 2018
DAIO PAPER CORPORATION
Takeshi KUROHARA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
VOLATILE DEBONDER FORMULATIONS FOR PAPERMAKING
Publication number
20160348320
Publication date
Dec 1, 2016
NanoPaper, LLC
Gangadhar Jogikalmath
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
VOLATILE DEBONDER FORMULATIONS FOR PAPERMAKING
Publication number
20130248132
Publication date
Sep 26, 2013
NanoPaper, LLC
GANGADHAR JOGIKALMATH
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
COMPOSITIONS AND METHODS OF MAKING PAPER PRODUCTS
Publication number
20130160959
Publication date
Jun 27, 2013
KEMIRA OYJ
Scott Rosencrance
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
VOLATILE DEBONDER FORMULATIONS FOR PAPERMAKING
Publication number
20130068407
Publication date
Mar 21, 2013
NanoPaper, LLC
GANGADHAR JOGIKALMATH
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SYSTEM FOR PRODUCTION-LINE PRINTING ON WET WEB MATERIAL
Publication number
20090071396
Publication date
Mar 19, 2009
N.R. SPUNTECH INDUSTRIES LTD.
Michael Shvartzman
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Application
Method and Device for Applying a Coating Medium in a Machine Used f...
Publication number
20080314544
Publication date
Dec 25, 2008
Wilhelm Gansberger
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Reducing the Water and Water Vapour Absorbence and Enhancing the Di...
Publication number
20080264587
Publication date
Oct 30, 2008
Simon Champ
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method for the Application of an Application Medium and Method and...
Publication number
20080053634
Publication date
Mar 6, 2008
VOITH PATENT GmbH
Wilhelm Gansberger
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method and apparatus for applying a material to a wide high-speed web
Publication number
20070029060
Publication date
Feb 8, 2007
PHILIP MORRIS USA INC.
Tyrone Murray
A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information
Patent Application
Making foam coated mats on-line
Publication number
20060283565
Publication date
Dec 21, 2006
Johns Manville
Richard Emil Kajander
B32 - LAYERED PRODUCTS
Information
Patent Application
Starch and fiber mixture for papermaking and methods of making pape...
Publication number
20060076118
Publication date
Apr 13, 2006
Philip Strong
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Paper products and method of making
Publication number
20050247421
Publication date
Nov 10, 2005
Michael J. Dougherty
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Paper products and method of making
Publication number
20050241790
Publication date
Nov 3, 2005
Michael J. Dougherty
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE