TREA

with the aid of centrifugal force

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  • CPC
  • D21D5/18
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Parent Industries

DTEXTILES PAPER D21Papermaking D21DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE D21D5/00Purification of the pulp suspension by mechanical means Apparatus therefor

Current Industry

D21D5/18with the aid of centrifugal force
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Sulfonated lignin-derived compounds and uses thereof
    • Patent number 11,773,537
    • Issue date Oct 3, 2023
    • CMBlu Energy AG
    • Nastaran Krawczyk
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Sulfonated lignin-derived compounds and uses thereof
    • Patent number 11,725,340
    • Issue date Aug 15, 2023
    • CMBlu Energy AG
    • Nastaran Krawczyk
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Method for producing low molecular weight aromatic lignin-derived c...
    • Patent number 11,225,756
    • Issue date Jan 18, 2022
    • CMBLU PROJEKT AG
    • Nastaran Krawczyk
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Sulfonated aromatic compounds
    • Patent number 11,008,284
    • Issue date May 18, 2021
    • CMBLU PROJEKT AG
    • Nastaran Krawczyk
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Processing device, sheet manufacturing device, processing method, a...
    • Patent number 10,876,255
    • Issue date Dec 29, 2020
    • Seiko Epson Corporation
    • Masanao Kunugi
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Defibrating unit
    • Patent number 9,840,809
    • Issue date Dec 12, 2017
    • Seiko Epson Corporation
    • Naotaka Higuchi
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Sheet manufacturing apparatus
    • Patent number 9,776,213
    • Issue date Oct 3, 2017
    • Seiko Epson Corporation
    • Kazuma Miyazawa
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    Sheet manufacturing apparatus and defibrating unit
    • Patent number 9,644,316
    • Issue date May 9, 2017
    • Seiko Epson Corporation
    • Naotaka Higuchi
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Sheet manufacturing apparatus and defibrating unit
    • Patent number 9,428,859
    • Issue date Aug 30, 2016
    • Seiko Epson Corporation
    • Naotaka Higuchi
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Method and an apparatus for controlling a flow of pulp suspension
    • Patent number 8,177,937
    • Issue date May 15, 2012
    • Metso Paper, Inc.
    • Dennis Nordgaard
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Process and device for aerating suspensions
    • Patent number 8,118,171
    • Issue date Feb 21, 2012
    • Andritz AG
    • Helmuth Gabl
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Separator for a mixture of a suspension and coarse heavy particles
    • Patent number 4,334,986
    • Issue date Jun 15, 1982
    • AB Celleco
    • Rune H. Frykhult
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3928186
    • Patent number 3,928,186
    • Issue date Dec 23, 1975
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3914172
    • Patent number 3,914,172
    • Issue date Oct 21, 1975
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    3912579
    • Patent number 3,912,579
    • Issue date Oct 14, 1975
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3862041
    • Patent number 3,862,041
    • Issue date Jan 21, 1975
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3859206
    • Patent number 3,859,206
    • Issue date Jan 7, 1975
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3849245
    • Patent number 3,849,245
    • Issue date Nov 19, 1974
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3849246
    • Patent number 3,849,246
    • Issue date Nov 19, 1974
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3807142
    • Patent number 3,807,142
    • Issue date Apr 30, 1974
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3804244
    • Patent number 3,804,244
    • Issue date Apr 16, 1974
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3764006
    • Patent number 3,764,006
    • Issue date Oct 9, 1973
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3734288
    • Patent number 3,734,288
    • Issue date May 22, 1973
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3720315
    • Patent number 3,720,315
    • Issue date Mar 13, 1973
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3696934
    • Patent number 3,696,934
    • Issue date Oct 10, 1972
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3622088
    • Patent number 3,622,088
    • Issue date Nov 23, 1971
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3507397
    • Patent number 3,507,397
    • Issue date Apr 21, 1970
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3503503
    • Patent number 3,503,503
    • Issue date Mar 31, 1970
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3501001
    • Patent number 3,501,001
    • Issue date Mar 17, 1970
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3486619
    • Patent number 3,486,619
    • Issue date Dec 30, 1969
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents