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Straining or screening the pulp
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CPC
D21D5/02
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Parent Industries
D
TEXTILES PAPER
D21
Papermaking
D21D
TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
D21D5/00
Purification of the pulp suspension by mechanical means Apparatus therefor
Current Industry
D21D5/02
Straining or screening the pulp
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Patents Grants
last 30 patents
Information
Patent Grant
Rotor with forward-swept struts for pressure screen cylinders
Patent number
12,070,776
Issue date
Aug 27, 2024
KADANT BLACK CLAWSON, LLC
John Joseph Egan
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Process for separating trichomes from non-trichome materials
Patent number
11,879,211
Issue date
Jan 23, 2024
The Procter & Gamble Company
Raul Victorino Nunes
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Fiber processing device, fibrous feedstock recycling device, and co...
Patent number
11,390,992
Issue date
Jul 19, 2022
Seiko Epson Corporation
Yuki Oguchi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Screen machine for screening for paper material, casing body for sc...
Patent number
11,286,616
Issue date
Mar 29, 2022
Sung Ju Na
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Rotor element and a rotor for a screening apparatus
Patent number
11,135,532
Issue date
Oct 5, 2021
AIKAWA FIBER TECHNOLOGIES INC.
Mathieu Hamelin
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Classifying device and fibrous feedstock recycling device
Patent number
11,072,887
Issue date
Jul 27, 2021
Seiko Epson Corporation
Naotaka Higuchi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Fiber processing device and fibrous feedstock recycling device
Patent number
11,072,888
Issue date
Jul 27, 2021
Seiko Epson Corporation
Hiroshi Tanaka
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dredging slurry system with pulp tank and controlling method of the...
Patent number
10,808,357
Issue date
Oct 20, 2020
YULAN GREEN TECHNOLOGY CO., LTD.
Chih-Hao Wu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for screening and a screening apparatus
Patent number
10,738,420
Issue date
Aug 11, 2020
Red Wire Oy
Jouko Hautala
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Rotor blade and screen comprising a rotor blade
Patent number
10,724,175
Issue date
Jul 28, 2020
Andritz AG
Alexander Gscheider
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Rotor element and a rotor for a screening apparatus
Patent number
10,617,979
Issue date
Apr 14, 2020
Aikawa Fiber Technologies Trust
Mathieu Hamelin
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and device for monitoring a wear structure, in particular a...
Patent number
10,392,750
Issue date
Aug 27, 2019
Voith Patent GmbH
Mark Erkelenz
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Sheet manufacturing apparatus
Patent number
10,179,423
Issue date
Jan 15, 2019
Seiko Epson Corporation
Yoshinobu Monbetsu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Rotorless pressure knotter
Patent number
10,081,912
Issue date
Sep 25, 2018
GL&V USA Inc.
Brian Gallagher
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
High yield and enhanced performance fiber
Patent number
10,000,889
Issue date
Jun 19, 2018
WestRock MWV, LLC
Peter W. Hart
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Sheet manufacturing apparatus
Patent number
9,951,473
Issue date
Apr 24, 2018
Seiko Epson Corporation
Masahide Nakamura
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
Pressure screen
Patent number
9,855,585
Issue date
Jan 2, 2018
Voith Patent GmbH
Kiyoshi Kokubun
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Method of making improved ballistic products
Patent number
9,562,749
Issue date
Feb 7, 2017
Honeywell International Inc.
Ashok Bhatnagar
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Screening apparatus, rotor, wing package and method for manufacture
Patent number
9,410,286
Issue date
Aug 9, 2016
Valnet AB
Anders Bergdahl
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and arrangement
Patent number
9,370,779
Issue date
Jun 21, 2016
Haarla OY
Johannes Haarla
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Grant
Pressure filter
Patent number
9,085,851
Issue date
Jul 21, 2015
Jouko Hautala
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus for screening fibrous suspensions
Patent number
8,950,584
Issue date
Feb 10, 2015
Andritz Oy
Petri Harju
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Processes for preparing pulp and paper
Patent number
8,926,793
Issue date
Jan 6, 2015
Nippon Paper Industries Co., Ltd.
Shisei Goto
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for producing mechanical pulp suitable for paper or cardboa...
Patent number
8,764,936
Issue date
Jul 1, 2014
M-real Oyj
Auli Laurila-Lumme
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of manufacturing a rotor for a screening apparatus, a rotor...
Patent number
8,714,364
Issue date
May 6, 2014
Aikawa Fiber Technologies Trust
Mathieu Hamelin
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of making improved ballistic products
Patent number
8,673,198
Issue date
Mar 18, 2014
Honeywell International Inc.
Ashok Bhatnagar
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Screen basket optimized for removal of stickies from adhesives-cont...
Patent number
8,641,866
Issue date
Feb 4, 2014
Georgia-Pacific Consumer Products LP
Wayne F. Winkler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Screen basket optimized for removal of stickies from adhesives-cont...
Patent number
8,534,468
Issue date
Sep 17, 2013
Georgia-Pacific Consumer Products LP
Wayne F. Winkler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Pressure filter with vibrator
Patent number
8,376,146
Issue date
Feb 19, 2013
Röhren-und Pumpenwerk Bauer Gesellschaft mbH
Dietrich Eichler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus for screening fibrous suspensions
Patent number
8,328,021
Issue date
Dec 11, 2012
Andritz Oy
Petri Harju
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
A METHOD FOR MANUFACTURING A PURIFIED FIBER FRACTION FROM USED BEVE...
Publication number
20250012011
Publication date
Jan 9, 2025
STORA ENSO OYJ
Carl-Henrik Ljungqvist
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
A Method for Treating Textile Fibers of Different Lengths
Publication number
20240410111
Publication date
Dec 12, 2024
VALMET TECHNOLOGIES OY
Tuomo Aho
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
ROTOR WITH FORWARD-SWEPT STRUTS FOR PRESSURE SCREEN CYLINDERS
Publication number
20240359215
Publication date
Oct 31, 2024
Kadant Black Clawson LLC
John Joseph Egan
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Application
Process for Separating Trichomes from Non-Trichome Materials
Publication number
20240110333
Publication date
Apr 4, 2024
The Procter & Gamble Company
Raul Victorino Nunes
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
ROTOR WITH FORWARD-SWEPT STRUTS FOR PRESSURE SCREEN CYLINDERS
Publication number
20230338990
Publication date
Oct 26, 2023
Kadant Black Clawson LLC
John Joseph Egan
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Application
Method and System for Producing Recycled Fibers for MDF or HDF Prod...
Publication number
20230118469
Publication date
Apr 20, 2023
VALMET TECHNOLOGIES OY
Robert Mohr
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
System and method of producing micro fibrillated cellulose (MFC)
Publication number
20230071986
Publication date
Mar 9, 2023
VALMET TECHNOLOGIES OY
Tuomo AHO
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Process for Separating Trichomes from Non-Trichome Materials
Publication number
20220403595
Publication date
Dec 22, 2022
The Procter & Gamble Company
Raul Victorino Nunes
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR RECOVERING FIBER FROM SCREENING REJECT AND FINE SORTING...
Publication number
20220243394
Publication date
Aug 4, 2022
TAIZEN CO., LTD.
Takefumi IDE
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
DREDGING SLURRY SYSTEM WITH PULP TANK AND CONTROLLING METHOD OF THE...
Publication number
20200224366
Publication date
Jul 16, 2020
YULAN GREEN TECHNOLOGY CO., LTD.
CHIH-HAO WU
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
ROTOR ELEMENT AND A ROTOR FOR A SCREENING APPARATUS
Publication number
20200179839
Publication date
Jun 11, 2020
AIKAWA FIBER TECHNOLOGIES TRUST
Mathieu HAMELIN
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
SCREEN MACHINE FOR SCREENING FOR PAPER MATERIAL, CASING BODY FOR SC...
Publication number
20200141058
Publication date
May 7, 2020
Sung Ju NA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Process for Separating Trichomes from Non-Trichome Materials
Publication number
20200002889
Publication date
Jan 2, 2020
The Procter & Gamble Company
Raul Victorino Nunes
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
FIBER PROCESSING DEVICE, FIBROUS FEEDSTOCK RECYCLING DEVICE, AND CO...
Publication number
20190218713
Publication date
Jul 18, 2019
SEIKO EPSON CORPORATION
Yuki OGUCHI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
CLASSIFYING DEVICE AND FIBROUS FEEDSTOCK RECYCLING DEVICE
Publication number
20190136451
Publication date
May 9, 2019
SEIKO EPSON CORPORATION
Naotaka HIGUCHI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SCREEN FEED ARRANGEMENT
Publication number
20190127912
Publication date
May 2, 2019
VALMET AB
Andreas ENGELFELDT
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR SCREENING AND A SCREENING APPARATUS
Publication number
20190048524
Publication date
Feb 14, 2019
Jouko Hautala
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Application
Rotor Blade and Screen Comprising a Rotor Blade
Publication number
20190040578
Publication date
Feb 7, 2019
Andritz AG
Alexander Gscheider
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD AND DEVICE FOR MONITORING A WEAR STRUCTURE, IN PARTICULAR A...
Publication number
20180119355
Publication date
May 3, 2018
VOITH PATENT GmbH
MARK ERKELENZ
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
ROTORLESS PRESSURE KNOTTER
Publication number
20180112356
Publication date
Apr 26, 2018
GL&V Luxembourg S.à.r.l.
Brian Gallagher
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD AND SYSTEM FOR RECYCLING PAPERS
Publication number
20180002865
Publication date
Jan 4, 2018
HADERA PAPER LTD.
Abraham TENENBAUM
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SHEET MANUFACTURING APPARATUS
Publication number
20170335516
Publication date
Nov 23, 2017
SEIKO EPSON CORPORATION
Masahide NAKAMURA
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Application
PAPERMAKING SCREEN DEVICE
Publication number
20170159239
Publication date
Jun 8, 2017
AIKAWA IRON WORKS CO., LTD.
Masaki AIKAWA
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
INTEGRATED METHOD AND SYSTEM FOR RECYCLING WASTE MATERIAL
Publication number
20160097158
Publication date
Apr 7, 2016
GEORGIA-PACIFIC CONSUMER PRODUCTS LP
David Christer Henriksson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PSEUDOMONAS FLUORESCENS CGMCC#5974 AND ITS APPLICATION THEREOF
Publication number
20150233051
Publication date
Aug 20, 2015
BEIJING TIAN'AN BIOSCIENCE & TECHNOLOGY CO., LTD.
Ping Jia
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Application
PROCESS FOR AMBIENT TEMPERATURE FRACTIONATION AND EXTRACTION OF VAR...
Publication number
20150041082
Publication date
Feb 12, 2015
Melvin Mitchell
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PAPERMAKING SCREEN APPARATUS
Publication number
20140190646
Publication date
Jul 10, 2014
AIKAWA IRON WORKS CO., LTD.
Masaki AIKAWA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PULP SCREEN ROTOR WITH SLURRY PASSAGES AROUND AND THROUGH THE ROTOR
Publication number
20140158586
Publication date
Jun 12, 2014
Brian James Gallagher
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
System and Method for Reclaiming Rejects in Sulfite Pulping
Publication number
20140053993
Publication date
Feb 27, 2014
UNIVERSITY OF NEW BRUNSWICK
Yonghao Ni
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESSES FOR PREPARING PULP AND PAPER
Publication number
20140020856
Publication date
Jan 23, 2014
AIKAWA IRON WORKS CO., LTD.
Shisei Goto
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE