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D21F1/523
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Parent Industries
D
TEXTILES PAPER
D21
Papermaking
D21F
PAPER-MAKING MACHINES METHODS OF PRODUCING PAPER THEREON
D21F1/00
Wet end of machines for making continuous webs of paper
Current Industry
D21F1/523
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Patents Grants
last 30 patents
Information
Patent Grant
Elongated component for a manufacturing machine of a fibrous cellul...
Patent number
11,814,793
Issue date
Nov 14, 2023
VALMET TECHNOLOGIES OY
Pasi Viitasalo
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Systems and methods for providing fluid extraction vacuum box cover...
Patent number
10,724,177
Issue date
Jul 28, 2020
Kadant Inc.
Peter Thuroe Carstensen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Systems and methods for providing shaped vacuum ports for fluid ext...
Patent number
10,724,176
Issue date
Jul 28, 2020
Kadant Inc.
Peter Thuroe Carstensen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Drainage element comprising an insert
Patent number
9,834,888
Issue date
Dec 5, 2017
Rüdiger Keinberger
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Cover device for a drainage apparatus for a papermaking machine
Patent number
9,708,766
Issue date
Jul 18, 2017
Paperchine Inc.
Douglas McPherson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Vacuum equipment for a fiber web machine and a fiber web machine pr...
Patent number
8,557,086
Issue date
Oct 15, 2013
Metso Paper, Inc.
Ville H. Eronen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Static dewatering element for a web forming machine and a method fo...
Patent number
8,070,915
Issue date
Dec 6, 2011
Metso Paper, Inc.
Antti Ahmaniemi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Multi-layer web formation section
Patent number
7,931,777
Issue date
Apr 26, 2011
Metso Paper, Inc.
Kari Räisänen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Flux-switching dual excitation electrical machine
Patent number
7,868,506
Issue date
Jan 11, 2011
Centre National de la Recherche Scientifique (Cnrs)
Emmanuel Kiên Lôc Hoang
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Process and device for dewatering a fiber web
Patent number
7,686,922
Issue date
Mar 30, 2010
Andritz AG
Jörg Bauböck
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Shaped slot vacuum dewatering box cover
Patent number
7,540,943
Issue date
Jun 2, 2009
AstenJohnson, Inc.
Douglas R. McPherson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Hybrid type forming section for a paper making machine
Patent number
7,524,401
Issue date
Apr 28, 2009
AstenJohnson, Inc.
Vaughn Wildfong
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Gap type forming section for a two fabric paper making machine
Patent number
7,524,402
Issue date
Apr 28, 2009
AstenJohnson, Inc.
Vaughn Wildfong
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Materials for dewatering elements
Patent number
7,513,976
Issue date
Apr 7, 2009
BTG Eclepens, S.A.
Silvano Freti
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dewatering element having non-pulsing dewatering followed by pulsin...
Patent number
7,491,295
Issue date
Feb 17, 2009
Metso Paper, Inc.
Antti Poikolainen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Supporting and wiping device for machine wire systems
Patent number
7,198,697
Issue date
Apr 3, 2007
Klaus Bartelmuss
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus for treating a wire or a felt band in a papermaking insta...
Patent number
7,175,744
Issue date
Feb 13, 2007
Klaus Bartelmuss
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus for a paper-making installation having at least one wire
Patent number
6,875,313
Issue date
Apr 5, 2005
Klaus Bartelmuss
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for monitoring a drainage element
Patent number
6,821,389
Issue date
Nov 23, 2004
Voith Paper Patent GmbH
Günter Halmschlager
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Machine for producing a fibrous web from a fibrous suspension as we...
Patent number
6,752,909
Issue date
Jun 22, 2004
Voith Patent GmbH
Günter Halmschlager
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dewatering box cover mounting device
Patent number
6,537,426
Issue date
Mar 25, 2003
Voith Paper Patent GmbH
Herbert Haunlieb
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Suction device and process for conditioning and/or drainage of an e...
Patent number
6,221,215
Issue date
Apr 24, 2001
Voith Sulzer Papiertechnik Patent GmbH
Günter Halmschlager
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Suction box with side fillers
Patent number
5,858,175
Issue date
Jan 12, 1999
Voith Sulzer Papiermaschinen
Bruno Feiler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Clip fastener for a dewatering box
Patent number
5,630,910
Issue date
May 20, 1997
JWI Ltd.
Douglas R. McPherson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Suction box covers for cleaning papermaking machine felts
Patent number
5,147,508
Issue date
Sep 15, 1992
The Nash Engineering Company
Douglas F. Sweet
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Continuous controlled drainage
Patent number
5,089,090
Issue date
Feb 18, 1992
JWI Ltd.
Victor E. Hansen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Suction box apparatus with composite cover elements mounted in slot...
Patent number
5,076,894
Issue date
Dec 31, 1991
Holt W. Simmons
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Pressure control forming section
Patent number
5,011,577
Issue date
Apr 30, 1991
JWI Ltd.
Victor E. Hansen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Ceramic foam member for extracting water from a paper web in a pape...
Patent number
4,985,121
Issue date
Jan 15, 1991
Appleton Mills
Thomas G. Gulya
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Suction box cover with modular components
Patent number
4,957,598
Issue date
Sep 18, 1990
Glauco Corbellini
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
Elongated Component for a Manufacturing Machine of a Fibrous Cellul...
Publication number
20220403596
Publication date
Dec 22, 2022
VALMET TECHNOLOGIES OY
Pasi Viitasalo
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
DRAINAGE ELEMENT COMPRISING AN INSERT
Publication number
20170037571
Publication date
Feb 9, 2017
Rüdiger Keinberger
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
COVER DEVICE FOR A DRAINAGE APPARATUS FOR A PAPERMAKING MACHINE
Publication number
20140345820
Publication date
Nov 27, 2014
PAPERCHINE INC.
Douglas McPherson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Vacuum Equipment for a Fiber Web Machine and a Fiber Web Machine Pr...
Publication number
20130042988
Publication date
Feb 21, 2013
Metso Paper, Inc.
Ville H. Eronen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
FLUX-SWITCHING DUAL EXCITATION ELECTRICAL MACHINE
Publication number
20100038978
Publication date
Feb 18, 2010
GEMPLUS
Emmanuel Kiên Lôc Hoang
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Static Dewatering Element for a Web Forming Machine and a Method fo...
Publication number
20090173467
Publication date
Jul 9, 2009
Metso Paper, Inc.
Antti Ahmaniemi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Dewatering element having non-pulsing dewatering followed by pulsin...
Publication number
20070235153
Publication date
Oct 11, 2007
Antti Poikolainen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Process and device for dewatering a fiber web
Publication number
20070181276
Publication date
Aug 9, 2007
Jorg Baubock
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Multi-layer web formation section
Publication number
20070163736
Publication date
Jul 19, 2007
Kari Raisanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Shaped slot vacuum dewatering box cover
Publication number
20070144699
Publication date
Jun 28, 2007
Asten Johnson, Inc.
Douglas R. McPherson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Materials for dewatering elements
Publication number
20070068646
Publication date
Mar 29, 2007
Silvano Freti
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Hybrid type forming section for a paper making machine
Publication number
20060283569
Publication date
Dec 21, 2006
Asten Johnson, Inc.
Vaughn Wildfong
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Gap type forming section for a two fabric paper making machine
Publication number
20060175031
Publication date
Aug 10, 2006
Wildlong Vaughn
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Supporting and wiping device for machine wire systems
Publication number
20040238142
Publication date
Dec 2, 2004
Klaus Bartelmuss
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method and device for the improvement of the properties of a fiber...
Publication number
20040188050
Publication date
Sep 30, 2004
Joachim Henssler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS FOR MONITORING A DRAINAGE ELEMENT
Publication number
20040163786
Publication date
Aug 26, 2004
Voith Paper Patent GmbH
Gunter Halmschlager
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Apparatus for treating a wire or a felt band in a papermaking insta...
Publication number
20040163787
Publication date
Aug 26, 2004
Klaus Bartelmuss
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Apparatus for a paper-making installation having at least one wire
Publication number
20040074623
Publication date
Apr 22, 2004
Klaus Bartelmuss
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Machine for the production of a fiber web
Publication number
20030066618
Publication date
Apr 10, 2003
Joachim Henssler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Machine for producing a fibrous web from a fibrous suspension as we...
Publication number
20020170692
Publication date
Nov 21, 2002
Gunter Halmschlager
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Mounting device
Publication number
20020148588
Publication date
Oct 17, 2002
Herbert Haunlieb
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE