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D21H23/10
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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
D21H23/10
at least two kinds of compounds being added
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Patents Grants
last 30 patents
Information
Patent Grant
High cationic starch as a promoter in AKD sizing emulsions
Patent number
12,031,274
Issue date
Jul 9, 2024
Kemira Oyj
Jennifer Riser
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dry strength composition, its use and method for making of paper, b...
Patent number
10,781,556
Issue date
Sep 22, 2020
Kemira Oyj
Matti Hietaniemi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing paper
Patent number
10,458,068
Issue date
Oct 29, 2019
Kemira Oyj
Chen Lu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
On-line control and reaction process for pH adjustment
Patent number
10,316,469
Issue date
Jun 11, 2019
Ecolab USA Inc.
Meng Zhang
G05 - CONTROLLING REGULATING
Information
Patent Grant
Flame-resistant paper for wave absorber member and wave absorber me...
Patent number
9,822,486
Issue date
Nov 21, 2017
Toray Industries, Inc.
Toru Sugahara
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Printable sheet that is ultra-smooth and recyclable, and its method...
Patent number
9,416,495
Issue date
Aug 16, 2016
Arjo Wiggins Fine Papers Limited
Gael Depres
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Durable creped tissue
Patent number
9,365,982
Issue date
Jun 14, 2016
Kimberly-Clark Worldwide, Inc.
Elizabeth Oriel Bradley
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and arrangement for feeding chemicals into a process stream
Patent number
7,981,251
Issue date
Jul 19, 2011
Nalco Company
Tommy Jacobson
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
ASA emulsification with ultrasound
Patent number
7,938,934
Issue date
May 10, 2011
Nalco Company
Aleksandar Todorovic
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Method and arrangement for feeding chemicals into a papermaking pro...
Patent number
7,785,442
Issue date
Aug 31, 2010
Nalco Company
Tommy Jacobson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of making a paper web containing refined long fiber using a...
Patent number
7,682,488
Issue date
Mar 23, 2010
Georgia-Pacific Consumer Products LP
Kang Chang Yeh
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Papermaking process
Patent number
7,604,715
Issue date
Oct 20, 2009
Akzo Nobel N.V.
Jonas Liesén
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and arrangement for feeding chemicals into a process stream
Patent number
7,550,060
Issue date
Jun 23, 2009
Nalco Company
Tommy Jacobson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for the production of paper
Patent number
7,442,280
Issue date
Oct 28, 2008
Akzo Nobel N.V.
Bore Klemets
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of making a paper web containing refined long fiber using a...
Patent number
7,252,741
Issue date
Aug 7, 2007
Georgia-Pacific Consumer Products LP
Kang Chang Yeh
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus and a method for controlling the alkalinity and pH of an...
Patent number
7,175,759
Issue date
Feb 13, 2007
Linde Aktiengesellschaft
Hannu Leino
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of making a non compacted paper web containing refined long...
Patent number
6,998,016
Issue date
Feb 14, 2006
Fort James Corporation
Kang Chang Yeh
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for producing a paper web having calcium carbonate filler b...
Patent number
6,623,599
Issue date
Sep 23, 2003
AGA Aktiebolag
Auli Laurila-Lumme
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Stabilized filler, its production and use
Patent number
6,540,878
Issue date
Apr 1, 2003
AGA Aktiebolag
Hannu Juhani Leino
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for substantially retarding dissolution of calcium carbonat...
Patent number
6,540,870
Issue date
Apr 1, 2003
AGA Aktiebolag
Auli Laurila-Lumme
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of making a non compacted paper web containing refined long...
Patent number
6,419,789
Issue date
Jul 16, 2002
Fort James Corporation
Kang Chang Yeh
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Strength of paper made from pulp containing surface active, carboxy...
Patent number
6,228,217
Issue date
May 8, 2001
Hercules Incorporated
Jay A. Dickerson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus for improving filler retention in papermaking
Patent number
6,086,718
Issue date
Jul 11, 2000
J. M. Huber Corporation
Richard Douglas Carter
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Application of material to a substrate
Patent number
5,942,086
Issue date
Aug 24, 1999
Philip Chem-Solv, Inc.
David Malcolm Owen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for improved wet strength paper
Patent number
5,935,383
Issue date
Aug 10, 1999
Kimberly-Clark Worldwide, Inc.
Tong Sun
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of improving filler retention in papermaking
Patent number
5,779,859
Issue date
Jul 14, 1998
J. M. Huber Corporation
Richard Douglas Carter
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Neutral papermaking
Patent number
5,505,819
Issue date
Apr 9, 1996
MacMillan Bloedel Limited
James A. De Witt
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Photographic printing paper support
Patent number
5,474,856
Issue date
Dec 12, 1995
Fuji Photo Film Co., Ltd.
Shigehisa Tamagawa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of reducing pitch in pulping and papermaking operations
Patent number
4,964,955
Issue date
Oct 23, 1990
Cyprus Mines Corporation
Richard S. Lamar
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus for the production of elastic absorbent
Patent number
4,931,005
Issue date
Jun 5, 1990
Showa Denko Kabushiki Kaisha
Toyoaki Tanaka
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
Information
Patent Application
Multi-Region Pulp Article
Publication number
20240183109
Publication date
Jun 6, 2024
The Procter & Gamble Company
David Andrew DALTON
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR SEPARATING CELLULOSIC PARTICULATES OUT OF FIBER SUSPENSI...
Publication number
20240026606
Publication date
Jan 25, 2024
PAPIERHOLZ AUSTRIA GMBH
Johannes LEITNER
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
GLYOXYLATED STARCH ADDITIVE FOR PULP PRODUCTS
Publication number
20230304226
Publication date
Sep 28, 2023
The Board of Trustees of Western Michigan University
Abdus Salam
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HIGH CATIONIC STARCH AS A PROMOTER IN AKD SIZING EMULSIONS
Publication number
20230212820
Publication date
Jul 6, 2023
KEMIRA OYJ
Jennifer Riser
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Dry strength composition, its use and method for making of paper, b...
Publication number
20190242065
Publication date
Aug 8, 2019
KEMIRA OYJ
Matti Hietaniemi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING PAPER
Publication number
20180051416
Publication date
Feb 22, 2018
KEMIRA OYJ
Chen LU
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
An On-Line Control and Reaction Process for pH Adjustment
Publication number
20170342663
Publication date
Nov 30, 2017
ECOLAB USA INC.
Meng Zhang
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PRINTABLE SHEET THAT IS ULTRA-SMOOTH AND RECYCLABLE, AND ITS METHOD...
Publication number
20120308744
Publication date
Dec 6, 2012
ARJO WIGGINS FINE PAPERS, LIMITED
Gael Depres
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
METHOD AND ARRANGEMENT FOR FEEDING CHEMICALS INTO A PROCESS STREAM
Publication number
20090211721
Publication date
Aug 27, 2009
Tommy Jacobson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
ASA EMULSIFICATION WITH ULTRASOUND
Publication number
20090139676
Publication date
Jun 4, 2009
Aleksandar Todorovic
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Process for the Manufacture of Paper and Board
Publication number
20090025895
Publication date
Jan 29, 2009
John Stuart Cowman
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD AND ARRANGEMENT FOR FEEDING CHEMICALS INTO A PAPERMAKING PRO...
Publication number
20080011788
Publication date
Jan 17, 2008
Tommy Jacobson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Method of Making a Non Compacted Paper Web Containing Refined Long...
Publication number
20070272380
Publication date
Nov 29, 2007
GEORGIA-PACIFIC CONSUMER PRODUCTS LP
Kang Chang Yeh
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method for making a low density multi-ply paperboard with high inte...
Publication number
20070215301
Publication date
Sep 20, 2007
Weyerhaeuser Co.
Daniel T. Bunker
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method and arrangement for feeding chemicals into a process stream
Publication number
20070169908
Publication date
Jul 26, 2007
Tommy Jacobson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Papermaking process
Publication number
20070107866
Publication date
May 17, 2007
Akzo Nobel N.V.
Jonas Liesen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method for making a low density multi-ply paperboard with high inte...
Publication number
20060213630
Publication date
Sep 28, 2006
Daniel T. Bunker
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method of making a paper web containing refined long fiber using a...
Publication number
20060032595
Publication date
Feb 16, 2006
Fort James Corporation
Kang Chang Yeh
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Apparatus and a method for controlling the alkalinity and ph of an...
Publication number
20040238455
Publication date
Dec 2, 2004
Hannu Leino
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method of adsorption of cationic and anionic polymers on the surfac...
Publication number
20030127209
Publication date
Jul 10, 2003
Sussan Sandberg
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Process for manufacturing paper
Publication number
20020166648
Publication date
Nov 14, 2002
Sten Frolich
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Process for the production of paper
Publication number
20020139502
Publication date
Oct 3, 2002
Hans Hallstrom
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method of making a non compacted paper web containing refined long...
Publication number
20020074100
Publication date
Jun 20, 2002
James River Corporation
Kang Chang Yeh
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE