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  • CPC
  • D21H23/32
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DTEXTILES PAPER D21Papermaking D21HPULP COMPOSITIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D IMPREGNATING OR COATING OF PAPER TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G PAPER NOT OTHERWISE PROVIDED FOR D21H23/00Processes or apparatus for adding material to the pulp or to the paper

Current Industry

D21H23/32by contacting paper with an excess of material
Industries

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    BIOBASED BINDER COMPOSITIONS FOR AIRLAID NONWOVEN MATERIALS
    • Publication number 20240218577
    • Publication date Jul 4, 2024
    • ORGANOCLICK AB
    • Maria WENNMAN
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Application

    GERM-REPELLENT BOOK AND FOOD PAPER PACKAGING, AND METHOD OF MANUFAC...
    • Publication number 20230022618
    • Publication date Jan 26, 2023
    • Main Choice Paper Products Limited
    • Wenjun MENG
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    GERM-REPELLENT BOOK AND FOOD PAPER PACKAGING, AND METHOD OF MANUFAC...
    • Publication number 20220064861
    • Publication date Mar 3, 2022
    • Main Choice Paper Products Limited
    • Wenjun MENG
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    OIL AND GREASE RESISTANT PAPERBOARD
    • Publication number 20200109517
    • Publication date Apr 9, 2020
    • WestRock MWV, LLC
    • Jiebin PANG
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    OIL AND GREASE RESISTANT PAPERBOARD
    • Publication number 20190161914
    • Publication date May 30, 2019
    • WestRock MWV, LLC
    • Jiebin PANG
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    CONVEYOR FOR WEB
    • Publication number 20180065824
    • Publication date Mar 8, 2018
    • Willi ERKELENZ
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    OIL, GREASE, AND MOISTURE RESISTANT PAPERBOARD
    • Publication number 20160230343
    • Publication date Aug 11, 2016
    • WestRock MWV, LLC
    • Jiebin PANG
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    IMPREGNATED BLADE COATING
    • Publication number 20130269897
    • Publication date Oct 17, 2013
    • Jurgen Angerler
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Application

    ROD BED LOCKING SYSTEMS
    • Publication number 20130008373
    • Publication date Jan 10, 2013
    • BTG IPI, LLC
    • Ari Rousu
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    AN END SEALING DEVICE FOR A METERING NIP, A COATER WITH A SEALED EN...
    • Publication number 20110195193
    • Publication date Aug 11, 2011
    • Kurt W. Oster
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Doctor apparatus
    • Publication number 20110017131
    • Publication date Jan 27, 2011
    • Wayne A. Damrau
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Method and Apparatus for Separating Impurities from Machine Circula...
    • Publication number 20090181176
    • Publication date Jul 16, 2009
    • Metso Paper, Inc.
    • Markku Viitanen
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Temperature control device
    • Publication number 20080083523
    • Publication date Apr 10, 2008
    • James P. Alfano
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Doctor apparatus
    • Publication number 20070104873
    • Publication date May 10, 2007
    • Wayne A. Damrau
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Doctor bed
    • Publication number 20060243201
    • Publication date Nov 2, 2006
    • Christoph Henninger
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Crosslinking agent application method and system
    • Publication number 20060113707
    • Publication date Jun 1, 2006
    • Weyerhaeuser Company
    • Ray Crane
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Application device
    • Publication number 20050155546
    • Publication date Jul 21, 2005
    • Voith Paper Patent GmbH
    • Eckart Krageloh
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Method and apparatus for feeding a treating agent onto a moving sur...
    • Publication number 20050066889
    • Publication date Mar 31, 2005
    • Rauno Rantanen
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Method and apparatus for the high speed application of coating to a...
    • Publication number 20050051084
    • Publication date Mar 10, 2005
    • Xuekui Lan
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Crosslinking agent application method and system
    • Publication number 20040130069
    • Publication date Jul 8, 2004
    • Ray Crane
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Application device
    • Publication number 20040074442
    • Publication date Apr 22, 2004
    • Eckart Krageloh
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Application device
    • Publication number 20020162503
    • Publication date Nov 7, 2002
    • Kurt Eichinger
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Application

    Support beam
    • Publication number 20020102372
    • Publication date Aug 1, 2002
    • Christioph Henninger
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE