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D21H23/20
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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
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D21H23/20
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Patents Grants
last 30 patents
Information
Patent Grant
Dosing of nanocellulose suspension in gel phase
Patent number
11,578,463
Issue date
Feb 14, 2023
Stora Enso Oyj
Esa Saukkonen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Fiber assembly-forming method and fiber assembly-forming apparatus
Patent number
11,566,378
Issue date
Jan 31, 2023
Seiko Epson Corporation
Tetsuya Aoyama
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Cellulose and cellulose ester film
Patent number
11,525,215
Issue date
Dec 13, 2022
Eastman Chemical Company
Charles Stuart Everett
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Sheet manufacturing apparatus, control method thereof, and sheet ma...
Patent number
11,459,703
Issue date
Oct 4, 2022
Seiko Epson Corporation
Naotaka Higuchi
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Sheet manufacturing apparatus and control method for sheet manufact...
Patent number
11,313,078
Issue date
Apr 26, 2022
Seiko Epson Corporation
Yuki Oguchi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Sheet manufacturing apparatus and control method for sheet manufact...
Patent number
11,193,238
Issue date
Dec 7, 2021
Seiko Epson Corporation
Yuki Oguchi
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
Sheet manufacturing apparatus
Patent number
11,174,594
Issue date
Nov 16, 2021
Seiko Epson Corporation
Katsuhito Gomi
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Process for making paper, paperboard or the like
Patent number
10,954,633
Issue date
Mar 23, 2021
Kemira Oyj
Christopher Michael Lewis
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Binder, sheet manufacturing apparatus, sheet manufacturing method,...
Patent number
10,900,175
Issue date
Jan 26, 2021
Seiko Epson Corporation
Yoshihiro Ueno
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for improving filler and fiber retention in paper making pro...
Patent number
10,876,258
Issue date
Dec 29, 2020
Solenis Technologies, L.P.
Teemu Aittamaa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Functional substance adsorption device for fiber
Patent number
10,323,357
Issue date
Jun 18, 2019
NATURON CO., LTD
Jang Suk Lee
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Device and method for monitoring biocide dosing in a machine
Patent number
9,341,560
Issue date
May 17, 2016
Kemira Oyj
Marko Kolari
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
Method of mixing a paper making chemical into a fiber suspension flow
Patent number
7,758,725
Issue date
Jul 20, 2010
Wetend Technologies Oy
Jouni Matula
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
Method and apparatus for feeding a chemical into a liquid flow
Patent number
7,234,857
Issue date
Jun 26, 2007
Wetend Technologies Oy
Jouni Matula
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus for treating pulp with filler
Patent number
7,070,677
Issue date
Jul 4, 2006
Andritz Oy
Kaj Henricson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for manufacturing paper having variable characteristics
Patent number
6,733,627
Issue date
May 11, 2004
MeadWestvaco Corporation
Kenneth A. Krukonis
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for manufacturing a paper or board web and a paper or board...
Patent number
6,712,931
Issue date
Mar 30, 2004
Metso Paper, Inc.
Johan Grön
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus for feeding a chemical into a liquid flow
Patent number
6,659,636
Issue date
Dec 9, 2003
Wetend Technologies Oy
Jouni Matula
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus for crosslinking individualized cellulose fibers
Patent number
6,436,231
Issue date
Aug 20, 2002
Weyerhaeuser
Peter A. Graef
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method for manufacturing colored stripped paper
Patent number
6,270,625
Issue date
Aug 7, 2001
The Mead Corporation
Kenneth A. Krukonis
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Reactive cyclic N-sulfatoimides and cellulose crosslinked with the...
Patent number
5,556,976
Issue date
Sep 17, 1996
Richard A. Jewell
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Apparatus for crosslinking individualized cellulose fibers
Patent number
5,437,418
Issue date
Aug 1, 1995
Weyerhaeuser Company
Peter A. Graef
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method and apparatus for crosslinking individualized cellulose fibers
Patent number
5,366,591
Issue date
Nov 22, 1994
Richard A. Jewell
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method for manufacturing filler-containing paper
Patent number
4,889,594
Issue date
Dec 26, 1989
Mo och Domsjo Aktiebolag
Gunnar Gavelin
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
2233965
Patent number
2,233,965
Issue date
Mar 4, 1941
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
2059880
Patent number
2,059,880
Issue date
Nov 3, 1936
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
1961272
Patent number
1,961,272
Issue date
Jun 5, 1934
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
1773435
Patent number
1,773,435
Issue date
Aug 19, 1930
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
SYSTEM AND METHOD OF MANUFACTURE OF CELLULOSE INSULATION
Publication number
20240309584
Publication date
Sep 19, 2024
NTIP LLC
William Sellars
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD, APPARATUS, AND SYSTEM OF A FIBRILLATED NANOCELLULOSE MATERIAL
Publication number
20230183924
Publication date
Jun 15, 2023
YIU WEN CHANG
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
STARCH COMPOSITE FOR BINDING FIBERS, FIBER STRUCTURE, AND FIBER STR...
Publication number
20210363700
Publication date
Nov 25, 2021
SEIKO EPSON CORPORATION
Satomi YOSHIOKA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SHEET MANUFACTURING APPARATUS
Publication number
20210292971
Publication date
Sep 23, 2021
SEIKO EPSON CORPORATION
Katsuhito GOMI
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Application
SHEET MANUFACTURING APPARATUS AND CONTROL METHOD FOR SHEET MANUFACT...
Publication number
20210292970
Publication date
Sep 23, 2021
SEIKO EPSON CORPORATION
Yuki OGUCHI
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Application
SHEET MANUFACTURING APPARATUS AND CONTROL METHOD FOR SHEET MANUFACT...
Publication number
20210277599
Publication date
Sep 9, 2021
SEIKO EPSON CORPORATION
Takao MIKOSHIBA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SHEET MANUFACTURING APPARATUS AND CONTROL METHOD FOR SHEET MANUFACT...
Publication number
20210277602
Publication date
Sep 9, 2021
SEIKO EPSON CORPORATION
Yuki OGUCHI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD AND APPARATUS FOR MANUFACTURING FIBER MOLDED ARTICLE, AND BI...
Publication number
20210164162
Publication date
Jun 3, 2021
SEIKO EPSON CORPORATION
Shigemi WAKABAYASHI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
FIBER ASSEMBLY-FORMING METHOD, FIBER ASSEMBLY-FORMING APPARATUS, AN...
Publication number
20210164167
Publication date
Jun 3, 2021
SEIKO EPSON CORPORATION
Tetsuya AOYAMA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
FIBER ASSEMBLY-FORMING METHOD AND FIBER ASSEMBLY-FORMING APPARATUS
Publication number
20210156091
Publication date
May 27, 2021
SEIKO EPSON CORPORATION
Tetsuya AOYAMA
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
SYSTEM FOR CONTINUOUS TREATMENT OF CELLULOSE PULPS
Publication number
20210148051
Publication date
May 20, 2021
Ricardo Reis De Carvalho
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method and Device for Applying a Material to a Moving Web
Publication number
20200208352
Publication date
Jul 2, 2020
Paperchine GmbH
Manfred Diebel
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
DOSING OF NANOCELLULOSE SUSPENSION IN GEL PHASE
Publication number
20200181847
Publication date
Jun 11, 2020
STORA ENSO OYJ
Esa SAUKKONEN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR IMPROVING FILLER AND FIBER RETENTION IN PAPER MAKING PRO...
Publication number
20200165779
Publication date
May 28, 2020
Solenis Technologies, L.P.
Teemu Aittamaa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
CELLULOSE AND CELLULOSE ESTER FILM
Publication number
20200063353
Publication date
Feb 27, 2020
Eastman Chemical Company
Charles Stuart Everett
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SHEET MANUFACTURING APPARATUS, CONTROL METHOD THEREOF, AND SHEET MA...
Publication number
20200002894
Publication date
Jan 2, 2020
SEIKO EPSON CORPORATION
Naotaka HIGUCHI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Paper Processing Composition and Process of Production
Publication number
20190211508
Publication date
Jul 11, 2019
David Creasey
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
FUNCTIONAL SUBSTANCE ADSORPTION DEVICE FOR FIBER
Publication number
20190203421
Publication date
Jul 4, 2019
NATURON CO.,LTD
Jang Suk LEE
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
BINDER, SHEET MANUFACTURING APPARATUS, SHEET MANUFACTURING METHOD,...
Publication number
20190100881
Publication date
Apr 4, 2019
SEIKO EPSON CORPORATION
Yoshihiro UENO
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for making paper, paperboard or the like
Publication number
20180327974
Publication date
Nov 15, 2018
KEMIRA OYJ
Christopher Michael Lewis
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
DEVICE AND METHOD FOR MONITORING BIOCIDE DOSING IN A MACHINE
Publication number
20150000853
Publication date
Jan 1, 2015
KEMIRA OYJ
Marko Kolari
G01 - MEASURING TESTING
Information
Patent Application
COATED PAPER OR BOARD PRODUCT AND PROCESS FOR THE PREPARATION THEREOF
Publication number
20100009168
Publication date
Jan 14, 2010
Vuorimiehentie 3
Jaakko Raukola
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
Method of mixing a paper making chemical into a fiber suspension flow
Publication number
20070258316
Publication date
Nov 8, 2007
WETEND TECHNOLOGIES OY
Jouni Matula
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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
Mixing of chemicals into a thin stock pipe
Publication number
20070133346
Publication date
Jun 14, 2007
Tommy Jacobson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Method and apparatus for treating pulp with filler
Publication number
20040050508
Publication date
Mar 18, 2004
Kaj Henricson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method and apparatus for feeding a chemical into a liquid flow
Publication number
20020131325
Publication date
Sep 19, 2002
Jouni Matula
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Method for manufacturing paper having variable characteristics
Publication number
20020029861
Publication date
Mar 14, 2002
Kenneth A. Krukonis
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE