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  • CPC
  • D21D1/22
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Parent Industries

DTEXTILES PAPER D21Papermaking D21DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE D21D1/00Methods of beating or refining Beaters of the Hollander type

Current Industry

D21D1/22Jordans
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Process to produce microfibrillated cellulose by impacts
    • Patent number 12,123,140
    • Issue date Oct 22, 2024
    • SUZANO S.A.
    • Estevão Frigini Mai
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Deflaker with serrated tooth pattern
    • Patent number 11,905,660
    • Issue date Feb 20, 2024
    • ANDRITZ INC.
    • Luc Gingras
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Refiner blade element
    • Patent number 11,891,758
    • Issue date Feb 6, 2024
    • VALMET TECHNOLOGIES OY
    • Juha-Pekka Huhtanen
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Blade element
    • Patent number 11,732,587
    • Issue date Aug 22, 2023
    • VALMET TECHNOLOGIES OY
    • Håkan Sjöström
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • 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

    Refining to a desirable freeness
    • Patent number 11,441,267
    • Issue date Sep 13, 2022
    • Eastman Chemical Company
    • Melvin Glenn Mitchell
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Refiner
    • Patent number 10,400,393
    • Issue date Sep 3, 2019
    • Valmet AB
    • Anders Hawén
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Refiner beating method
    • Patent number 10,385,507
    • Issue date Aug 20, 2019
    • AIKAWA IRON WORKS CO., LTD.
    • Masaki Aikawa
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Device and method for removing impurities from shredded plastic
    • Patent number 10,058,898
    • Issue date Aug 28, 2018
    • CVP Clean Value Plastics GmbH
    • Alexander Gercke
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • 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

    Blade element and refiner
    • Patent number 9,267,234
    • Issue date Feb 23, 2016
    • Valmet Technologies, Inc.
    • Juha-Pekka Huhtanen
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Refiner and blade element
    • Patent number 9,222,220
    • Issue date Dec 29, 2015
    • Valmet Technologies, Inc.
    • Håkan Sjöström
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • 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

    Refiner and blade element
    • Patent number 9,133,579
    • Issue date Sep 15, 2015
    • Valmet Technologies, Inc.
    • Håkan Sjöström
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Method and an apparatus for producing nanocellulose
    • Patent number 8,945,346
    • Issue date Feb 3, 2015
    • UPM-Kymmene Corporation
    • Tomas Bjoerkqvist
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Process for making conical spare parts for refiners for the product...
    • Patent number 8,769,800
    • Issue date Jul 8, 2014
    • Officine Airaghi S.R.L.
    • Luca Ghibellini
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Refiner with flow guide inside rotor or stator
    • Patent number 8,646,708
    • Issue date Feb 11, 2014
    • Metso Paper, Inc.
    • Jorma Halla
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Refiner and method for refining fibrous material
    • Patent number 8,511,595
    • Issue date Aug 20, 2013
    • Metso Paper, Inc.
    • Kati Lindroos
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Refiner
    • Patent number 8,226,023
    • Issue date Jul 24, 2012
    • Metso Paper, Inc.
    • Petteri Vuorio
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Refiner
    • Patent number 8,028,946
    • Issue date Oct 4, 2011
    • Metso Paper, Inc.
    • Petteri Vuorio
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Refining element
    • Patent number 7,451,946
    • Issue date Nov 18, 2008
    • Metso Paper, Inc.
    • Nils Virving
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Conical refiner plates with logarithmic spiral type bars
    • Patent number 7,398,938
    • Issue date Jul 15, 2008
    • Andritz Inc.
    • Peter Antensteiner
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Method for processing pulp
    • Patent number 7,282,114
    • Issue date Oct 16, 2007
    • Metso Paper, Inc.
    • Veikko Kankaanpää
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Method of refining wood chips or pulp in a high consistency conical...
    • Patent number 7,240,863
    • Issue date Jul 10, 2007
    • FPInnovations
    • Lahoucine Ettaleb
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Paper pulp refiner control system and method using active hydrostat...
    • Patent number 6,989,074
    • Issue date Jan 24, 2006
    • Kadant Black Clawson Inc.
    • John J. Egan, III
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Refiner and agitating apparatus for papermaking
    • Patent number 6,969,019
    • Issue date Nov 29, 2005
    • Aikawa Iron Works Co., Ltd.
    • Yoshihiko Aikawa
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Refiner
    • Patent number 6,637,686
    • Issue date Oct 28, 2003
    • Andritz AG
    • Peter Antensteiner
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Screw device for dewatering and defibrating ligno-cellulose material
    • Patent number 6,145,766
    • Issue date Nov 14, 2000
    • Andritz-Patentverwaltungs-Gesellschaft m.b.H.
    • Peter Mraz
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Refining element
    • Patent number 6,042,036
    • Issue date Mar 28, 2000
    • Sunds Defibrator Industries AB
    • Nils Virving
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Paper manufacture conical-type pulp refiners improvements
    • Patent number 5,836,530
    • Issue date Nov 17, 1998
    • Pilao S/A Maquinas e Equipamentos
    • Milton Pilao
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents