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D21D1/008
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D
TEXTILES PAPER
D21
Papermaking
D21D
TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
D21D1/00
Methods of beating or refining Beaters of the Hollander type
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D21D1/008
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Patents Grants
last 30 patents
Information
Patent Grant
Method for controlling a device for treating high-consistency pulp
Patent number
12,043,959
Issue date
Jul 23, 2024
Voith Patent GmbH
Markus Nussbaumer
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus and method for processing wood fibers
Patent number
11,982,054
Issue date
May 14, 2024
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus and method for processing wood fibers
Patent number
11,965,290
Issue date
Apr 23, 2024
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus and method for processing wood fibers
Patent number
11,905,658
Issue date
Feb 20, 2024
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Refiner plate segments having feeding grooves
Patent number
11,819,858
Issue date
Nov 21, 2023
ANDRITZ INC.
Arvind M. Singhal
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Disperser plates with intermeshing teeth and outer refining section
Patent number
11,643,778
Issue date
May 9, 2023
ANDRITZ INC.
Luc Gingras
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Grant
Set for the mechanical processing, in particular grinding of suspen...
Patent number
11,453,977
Issue date
Sep 27, 2022
Andritz Fiedler GmbH
Christoph Tichy
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Grant
Steam evacuation in a pulp or fiber refiner
Patent number
11,440,017
Issue date
Sep 13, 2022
Valmet AB
Karl Lönngren
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Grant
Apparatus and method for processing wood fibers
Patent number
11,421,382
Issue date
Aug 23, 2022
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Disperser plates with intermeshing teeth and outer refining section
Patent number
11,174,592
Issue date
Nov 16, 2021
ANDRITZ INC.
Luc Gingras
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Grant
Apparatus and method for processing wood fibers
Patent number
11,001,968
Issue date
May 11, 2021
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus and method for processing wood fibers
Patent number
10,794,003
Issue date
Oct 6, 2020
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Cast refiner plate segment with blunt edges and corners for safe ha...
Patent number
10,501,888
Issue date
Dec 10, 2019
Andritz Inc.
Luc Gingras
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Reduced mass plates for refiners and dispersers
Patent number
10,166,546
Issue date
Jan 1, 2019
Andritz Inc.
Mikael Rehnstrom
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Set for the mechanical processing, in particular grinding of suspen...
Patent number
9,976,253
Issue date
May 22, 2018
Andritz Fiedler GmbH
Christoph Tichy
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Cast refiner plate segment with blunt edges and corners for safe ha...
Patent number
9,605,379
Issue date
Mar 28, 2017
Andritz Inc.
Luc Gingras
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Apparatus for disperser plate and method to refine paper
Patent number
9,145,641
Issue date
Sep 29, 2015
Andritz Inc.
Luc Gingras
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Grant
Deflaker plate and methods relating thereto
Patent number
8,342,437
Issue date
Jan 1, 2013
Andritz Inc.
Peter Antensteiner
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Refining element
Patent number
7,354,011
Issue date
Apr 8, 2008
Metso Paper, Inc.
Nils Virving
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for the manufacture of fillings for utilization in the mecha...
Patent number
7,263,755
Issue date
Sep 4, 2007
Voith Patent GmbH
Werner Lange
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Grooved pyramid disperger plate
Patent number
7,172,148
Issue date
Feb 6, 2007
Andritz Inc.
Danny Cassidy
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Refining elements
Patent number
6,499,682
Issue date
Dec 31, 2002
Valmet Fibertech AB
Nils Virving
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Fittings and process for producing fittings for the mechanical proc...
Patent number
6,443,353
Issue date
Sep 3, 2002
Voith Sulzer Papiertechnik Patent GmbH
Hans Herrmann Kleinschnittger
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for the production of fittings and of a machine for the mec...
Patent number
6,363,601
Issue date
Apr 2, 2002
Voith Sulzer Papiertechnik Patent GmbH
Josef Schneid
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Device and treatment machine for the mechanical treatment of high-c...
Patent number
5,904,308
Issue date
May 18, 1999
Voith Sulzer Papiertechnik Patent GmbH
Hans Schnell
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Paper pulp defibering or refining plate and method of manufacturing it
Patent number
5,836,531
Issue date
Nov 17, 1998
Technogenia S.A.
Guy Maybon
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Apparatus for regulated dispersion treatment of highly consistent f...
Patent number
5,730,376
Issue date
Mar 24, 1998
Voith Sulzer Stoffaufbereitung GmbH
Josef Schneid
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Device and treatment machine for the mechanical treatment of high-c...
Patent number
5,727,743
Issue date
Mar 17, 1998
Voith Sulzer Stoffaufbereitung
Josef Schneid
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Refining element
Patent number
5,704,559
Issue date
Jan 6, 1998
Sunds Defibrator Industries AB
Per Froberg
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
High consistency pulp refining using low consistency pulp refining...
Patent number
5,687,917
Issue date
Nov 18, 1997
Canadian Forest Products Ltd.
Kim Shing Law
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
APPARATUS AND METHOD FOR PROCESSING WOOD FIBERS
Publication number
20240360622
Publication date
Oct 31, 2024
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
APPARATUS AND METHOD FOR PROCESSING WOOD FIBERS
Publication number
20240295076
Publication date
Sep 5, 2024
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
APPARATUS AND METHOD FOR PROCESSING WOOD FIBERS
Publication number
20240247441
Publication date
Jul 25, 2024
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
APPARATUS AND METHOD FOR PROCESSING WOOD FIBERS
Publication number
20230228034
Publication date
Jul 20, 2023
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR CONTROLLING A DEVICE FOR TREATING HIGH-CONSISTENCY PULP
Publication number
20220098790
Publication date
Mar 31, 2022
VOITH PATENT GmbH
Markus Nussbaumer
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
DISPERSER PLATES WITH INTERMESHING TEETH AND OUTER REFINING SECTION
Publication number
20220034034
Publication date
Feb 3, 2022
Andritz Inc.
Luc GINGRAS
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
APPARATUS AND METHOD FOR PROCESSING WOOD FIBERS
Publication number
20210262166
Publication date
Aug 26, 2021
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
APPARATUS AND METHOD FOR PROCESSING WOOD FIBERS
Publication number
20210017705
Publication date
Jan 21, 2021
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
REFINER PLATE SEGMENTS HAVING FEEDING GROOVES
Publication number
20200246801
Publication date
Aug 6, 2020
Andritz Inc.
Arvind M. Singhal
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
Steam Evacuation in a Pulp or Fiber Refiner
Publication number
20190388899
Publication date
Dec 26, 2019
VALMET AB
Karl Lönngren
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
APPARATUS AND METHOD FOR PROCESSING WOOD FIBERS
Publication number
20190316295
Publication date
Oct 17, 2019
International Paper Company
Dwight Edward Anderson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
DISPERSER PLATES WITH INTERMESHING TEETH AND OUTER REFINING SECTION
Publication number
20190301097
Publication date
Oct 3, 2019
ANDRITZ INC.
Luc GINGRAS
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SET FOR THE MECHANICAL PROCESSING, IN PARTICULAR GRINDING OF SUSPEN...
Publication number
20180230650
Publication date
Aug 16, 2018
Andritz Fiedler Gmbh
CHRISTOPH TICHY
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SET FOR THE MECHANICAL PROCESSING, IN PARTICULAR GRINDING OF SUSPEN...
Publication number
20170191218
Publication date
Jul 6, 2017
Andritz Fiedler GmbH
CHRISTOPH TICHY
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
REDUCED MASS PLATES FOR REFINERS AND DISPERSERS
Publication number
20140339348
Publication date
Nov 20, 2014
ANDRITZ INC.
MIKAEL REHNSTROM
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
CAST REFINER PLATE SEGMENT WITH BLUNT EDGES AND CORNERS FOR SAFE HA...
Publication number
20140217223
Publication date
Aug 7, 2014
ANDRITZ INC.
Luc Gingras
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
APPARATUS FOR DISPERSER PLATE AND METHOD TO REFINE PAPER
Publication number
20140196858
Publication date
Jul 17, 2014
ANDRITZ INC.
Luc GINGRAS
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
TEETH FOR DISPERSER PLATE HAVING GROOVES AND TAPER
Publication number
20140174688
Publication date
Jun 26, 2014
ANDRITZ INC.
Ismo Ihalainen
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
Refining Disc or Refining Disc Segment
Publication number
20140091163
Publication date
Apr 3, 2014
CELLWOOD MACHINERY AB
Peter Ek
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
DEFLAKER PLATE AND METHODS RELATING THERETO
Publication number
20100269991
Publication date
Oct 28, 2010
ANDRITZ INC.
Peter Antensteiner
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Grooved pyramid disperger plate
Publication number
20050194482
Publication date
Sep 8, 2005
Danny Cassidy
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Refining element
Publication number
20040173702
Publication date
Sep 9, 2004
Nils Virving
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method for the manufacture of fillings for utilization in the mecha...
Publication number
20040128817
Publication date
Jul 8, 2004
Werner Lange
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Fitting carrier and its use
Publication number
20020166912
Publication date
Nov 14, 2002
VOITH PAPER PATENT GmbH
Josef Schneid
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE