Addition to the pulp After-treatment of added substances in the pulp

Industry

CPC
D21H23/04

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Parent Industries

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

D21H23/04Addition to the pulp After-treatment of added substances in the pulp

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Polymer and method for the preparation thereof
- Patent number 12,365,754
- Issue date Jul 22, 2025
- SNF GROUP
- Gatien Faucher
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Flame-resistant paper for radio wave absorber member and production...
- Patent number 12,359,374
- Issue date Jul 15, 2025
- Toray Industries, Inc.
- Tomoko Takano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process for producing coloured cardboard in a cardboard production...
- Patent number 12,338,580
- Issue date Jun 24, 2025
- Eska B.V.
- Albertus Uil
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Composition and method for manufacture of paper, board or the like
- Patent number 12,338,579
- Issue date Jun 24, 2025
- Kemira Oyj
- Kimmo Strengell
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Tissue paper and method for manufacturing tissue paper
- Patent number 12,305,335
- Issue date May 20, 2025
- Daio Paper Corporation
- Sachiko Takahashi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for producing cellulose pulp, cellulose pulp and use thereof...
- Patent number 12,305,332
- Issue date May 20, 2025
- Suzano S.A.
- Otávio Mambrim Filho
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Suspensions including cellulose nanofibril and polyester
- Patent number 12,305,331
- Issue date May 20, 2025
- North Carolina State University
- Emily Facchine
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for obtaining bio-sourced N-vinylformamide
- Patent number 12,269,789
- Issue date Apr 8, 2025
- SNF GROUP
- Cédrick Favero
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for producing paper or board and a product thereof
- Patent number 12,215,463
- Issue date Feb 4, 2025
- Kemira Oyj
- Diego Salas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Treated substrates and methods of producing the same
- Patent number 12,163,288
- Issue date Dec 10, 2024
- Solenis Technologies, L.P.
- Robert Pelton
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Preparation method of heat-not-burn cigarette paper with boron nitr...
- Patent number 12,104,325
- Issue date Oct 1, 2024
- Zhejiang University
- Qinghua Zhang
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Ash retention additive and methods of using the same
- Patent number 12,065,785
- Issue date Aug 20, 2024
- Polymer Ventures, Inc.
- Christopher B. Murphy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for producing paper
- Patent number 11,926,968
- Issue date Mar 12, 2024
- Kurita Water Industries Ltd.
- Takashi Saigusa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Paper enhancing compositions, uses thereof and enhanced paper
- Patent number 11,905,663
- Issue date Feb 20, 2024
- ITI Technologies, Inc.
- David H. Creasey
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Aramid-mica composite insulating nanopaper and preparation method t...
- Patent number 11,885,071
- Issue date Jan 30, 2024
- SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Zhaoqing Lu
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Inline dilution of microfibrillated cellulose
- Patent number 11,851,818
- Issue date Dec 26, 2023
- Borregaard AS
- Anne Opstad
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for producing paper or cardboard
- Patent number 11,795,255
- Issue date Oct 24, 2023
- Solenis Technologies, L.P.
- Hans-Joachim Haehnle
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Paper enhancing compositions, uses thereof and enhanced paper
- Patent number 11,767,640
- Issue date Sep 26, 2023
- ITI Technologies, Inc.
- David H. Creasey
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Sheet manufacturing method and sheet manufacturing apparatus
- Patent number 11,753,769
- Issue date Sep 12, 2023
- Seiko Epson Corporation
- Masahide Nakamura
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Methods, apparatus, and chemical compositions for selectively coati...
- Patent number 11,654,600
- Issue date May 23, 2023
- Footprint International, Inc.
- Yoke Dou Chung
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Methods for the separation of baobab fibers
- Patent number 11,643,774
- Issue date May 9, 2023
- HOPE TREE INTERNATIONAL GMBH
- Lambert Dustin Dinzinger
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Complex of polymers, preparation and use
- Patent number 11,608,597
- Issue date Mar 21, 2023
- S.P.C.M. SA
- Gatien Faucher
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of producing hydrophobic paper
- Patent number 11,591,753
- Issue date Feb 28, 2023
- SCA Forest Products AB
- Raquel Bohn Stoltz
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Fiber body forming method and sheet
- Patent number 11,492,759
- Issue date Nov 8, 2022
- Seiko Epson Corporation
- Shigemi Wakabayashi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Softener composition
- Patent number 11,492,760
- Issue date Nov 8, 2022
- Kemira Oyj
- Chen Lu
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper strength improving composition, manufacture thereof and use i...
- Patent number 11,453,979
- Issue date Sep 27, 2022
- Kemira Oyj
- Yuping Luo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Use of a polymer product for deposit formation control in manufactu...
- Patent number 11,441,273
- Issue date Sep 13, 2022
- Kemira Oyj
- Matti Hietaniemi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dry strength composition, its use and method for making of paper, b...
- Patent number 11,427,965
- Issue date Aug 30, 2022
- Kemira Oyj
- Matti Hietaniemi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Elongated tubular articles from wet-laid webs
- Patent number 11,390,996
- Issue date Jul 19, 2022
- Eastman Chemical Company
- Kenny Randolph Parker
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Titanium oxide composite fibers and method for producing same
- Patent number 11,390,997
- Issue date Jul 19, 2022
- Nippon Paper Industries Co., Ltd.
- Masatoshi Oishi
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR REPULPING WET STRENGTH FIBER
- Publication number 20250223761
- Publication date Jul 10, 2025
- Solenis Technologies, L.P.
- Frank Whitley
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NOVEL POLYMER AND METHOD FOR THE PREPARATION THEREOF
- Publication number 20250171577
- Publication date May 29, 2025
- SNF Group
- Gatien FAUCHER
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR PRODUCING A FILTERING MATERIAL
- Publication number 20250163651
- Publication date May 22, 2025
- BIOSORBE AB
- Johan BENNARSTEN
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PACKAGE MATERIAL AND METHOD OF PRODUCING A PACKAGE MATERIAL
- Publication number 20250137203
- Publication date May 1, 2025
- SONY GROUP CORPORATION
- Yuuko TABEI
- B32 - LAYERED PRODUCTS
Information Patent Application
A method for improving grease and oil resistance of a fiber based a...
- Publication number 20250043513
- Publication date Feb 6, 2025
- KEMIRA OYJ
- Markus KVIST
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
WIRE TREATMENT FOR DUST CONTROL
- Publication number 20250027275
- Publication date Jan 23, 2025
- ECOLAB USA INC.
- Dominic LUNEAU
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
CITRIC ACID-CATALYSED CURRAN MODIFIED CARD BOARD MATERIALS
- Publication number 20250003152
- Publication date Jan 2, 2025
- Cellucomp Limited
- Eric Arron WHALE
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHOD FOR MANUFACTURING PAPER AND CARDBOARD
- Publication number 20240376672
- Publication date Nov 14, 2024
- SNF Group
- Cyril BARRIERE
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
DISPERSIBLE PAPER, METHOD FOR PRODUCING SAME, PACKAGING AND USE OF...
- Publication number 20240344274
- Publication date Oct 17, 2024
- Klabin S.A.
- Guilherme GIESEL
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
USE OF MODIFIED LIGNIN AS A WET END STRENGTH ADDITIVE
- Publication number 20240344271
- Publication date Oct 17, 2024
- ECOLAB USA INC.
- David Steven JORDAN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ADDITIVE COMPOSITIONS FOR PAPERMAKING
- Publication number 20240337070
- Publication date Oct 10, 2024
- Solenis Technologies, L.P.
- Daniel M. Henn
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR OBTAINING BIO-SOURCED N-VINYLFORMAMIDE
- Publication number 20240270681
- Publication date Aug 15, 2024
- SNF Group
- Cédrick FAVERO
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR MANUFACTURING PAPER AND CARDBOARD
- Publication number 20240200270
- Publication date Jun 20, 2024
- Cyril BARRIERE
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SYSTEMS AND METHODS FOR PRODUCTION OF STARCH-LOADED FIBRILLATED FIBERS
- Publication number 20240175211
- Publication date May 30, 2024
- Domtar Paper Company, LLC
- Harshad Pande
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
OIL-RESISTANT AGENT COMPOSITION
- Publication number 20240167226
- Publication date May 23, 2024
- DAIKIN INDUSTRIES, LTD.
- Shun SHIBATA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
METHOD FOR MANUFACTURING MOLDED PRODUCT
- Publication number 20240093432
- Publication date Mar 21, 2024
- SEIKO EPSON CORPORATION
- Masahiko NAKAZAWA
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
A TREATMENT SYSTEM FOR MANUFACTURE OF PAPER, BOARD OR THE LIKE
- Publication number 20240093433
- Publication date Mar 21, 2024
- KEMIRA OYJ
- Matti HIETANIEMI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
TISSUE PAPER AND METHOD FOR MANUFACTURING TISSUE PAPER
- Publication number 20240084513
- Publication date Mar 14, 2024
- DAIO PAPER CORPORATION
- Sachiko TAKAHASHI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
COMPOSITIONS AND METHODS FOR PAPERMAKING
- Publication number 20240068168
- Publication date Feb 29, 2024
- ECOLAB USA INC.
- Mingli WEI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESS FOR MANUFACTURING PAPER OR CARDBOARD
- Publication number 20240044082
- Publication date Feb 8, 2024
- SNF Group
- Cyril BARRIERE
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ADDITIVE COMPOSITIONS AND METHODS FOR PAPERMAKING WITH HIGH-KAPPA F...
- Publication number 20240035232
- Publication date Feb 1, 2024
- Solenis Technologies, L.P.
- Anthony Joseph Petty
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR PRODUCING A CELLULOSE-FIBRE-BASED DRINKING STRAW
- Publication number 20240018724
- Publication date Jan 18, 2024
- Mondi AG
- Lars Goran BERGLUND
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
TISSUE PAPER AND METHOD FOR MANUFACTURING TISSUE PAPER
- Publication number 20230383470
- Publication date Nov 30, 2023
- DAIO PAPER CORPORATION
- Sachiko TAKAHASHI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PAPER ENHANCING COMPOSITIONS, USES THEREOF AND ENHANCED PAPER
- Publication number 20230366154
- Publication date Nov 16, 2023
- ITI Technologies, Inc.
- David H. Creasey
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
FLAME-RESISTANT PAPER FOR RADIO WAVE ABSORBER MEMBER AND PRODUCTION...
- Publication number 20230323603
- Publication date Oct 12, 2023
- TORAY INDUSTRIES, INC.
- Tomoko Takano
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PREPARATION METHOD OF HEAT-NOT-BURN CIGARETTE PAPER WITH BORON NITR...
- Publication number 20230265615
- Publication date Aug 24, 2023
- Zhejiang University
- Qinghua ZHANG
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Application
COMPOSITION FOR IMPROVING SOFTNESS OF TISSUE AND/OR TOWEL PRODUCTS
- Publication number 20230243102
- Publication date Aug 3, 2023
- Solenis Technologies, L.P.
- Michael A. Evans
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NOVEL WATER-SOLUBLE POLYMER COMPLEXES IN THE FORM OF AN INVERSE EMU...
- Publication number 20230243103
- Publication date Aug 3, 2023
- S.P.C.M. SA
- René HUND
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESS FOR PRODUCING COLOURED CARDBOARD IN A CARDBOARD PRODUCTION...
- Publication number 20230141227
- Publication date May 11, 2023
- Eska B.V.
- Albertus UIL
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
COMPOSITIONS AND METHODS FOR INCREASED WET AND DRY STRENGTH
- Publication number 20230140638
- Publication date May 4, 2023
- KEMIRA OYJ
- Chen LU
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Addition to the pulp After-treatment of added substances in the pulp

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Polymer and method for the preparation thereof

Flame-resistant paper for radio wave absorber member and production...

Process for producing coloured cardboard in a cardboard production...

Composition and method for manufacture of paper, board or the like

Tissue paper and method for manufacturing tissue paper

Method for producing cellulose pulp, cellulose pulp and use thereof...

Suspensions including cellulose nanofibril and polyester

Method for obtaining bio-sourced N-vinylformamide

Process for producing paper or board and a product thereof

Treated substrates and methods of producing the same

Preparation method of heat-not-burn cigarette paper with boron nitr...

Ash retention additive and methods of using the same

Method for producing paper

Paper enhancing compositions, uses thereof and enhanced paper

Aramid-mica composite insulating nanopaper and preparation method t...

Inline dilution of microfibrillated cellulose

Method for producing paper or cardboard

Paper enhancing compositions, uses thereof and enhanced paper

Sheet manufacturing method and sheet manufacturing apparatus

Methods, apparatus, and chemical compositions for selectively coati...

Methods for the separation of baobab fibers

Complex of polymers, preparation and use

Method of producing hydrophobic paper

Fiber body forming method and sheet

Softener composition

Paper strength improving composition, manufacture thereof and use i...

Use of a polymer product for deposit formation control in manufactu...

Dry strength composition, its use and method for making of paper, b...

Elongated tubular articles from wet-laid webs

Titanium oxide composite fibers and method for producing same

Patents Applicationslast 30 patents

METHOD FOR REPULPING WET STRENGTH FIBER

NOVEL POLYMER AND METHOD FOR THE PREPARATION THEREOF

METHOD FOR PRODUCING A FILTERING MATERIAL

PACKAGE MATERIAL AND METHOD OF PRODUCING A PACKAGE MATERIAL

A method for improving grease and oil resistance of a fiber based a...

WIRE TREATMENT FOR DUST CONTROL

CITRIC ACID-CATALYSED CURRAN MODIFIED CARD BOARD MATERIALS

METHOD FOR MANUFACTURING PAPER AND CARDBOARD

DISPERSIBLE PAPER, METHOD FOR PRODUCING SAME, PACKAGING AND USE OF...

USE OF MODIFIED LIGNIN AS A WET END STRENGTH ADDITIVE

ADDITIVE COMPOSITIONS FOR PAPERMAKING

METHOD FOR OBTAINING BIO-SOURCED N-VINYLFORMAMIDE

METHOD FOR MANUFACTURING PAPER AND CARDBOARD

SYSTEMS AND METHODS FOR PRODUCTION OF STARCH-LOADED FIBRILLATED FIBERS

OIL-RESISTANT AGENT COMPOSITION

METHOD FOR MANUFACTURING MOLDED PRODUCT

A TREATMENT SYSTEM FOR MANUFACTURE OF PAPER, BOARD OR THE LIKE

TISSUE PAPER AND METHOD FOR MANUFACTURING TISSUE PAPER

COMPOSITIONS AND METHODS FOR PAPERMAKING

PROCESS FOR MANUFACTURING PAPER OR CARDBOARD

ADDITIVE COMPOSITIONS AND METHODS FOR PAPERMAKING WITH HIGH-KAPPA F...

METHOD FOR PRODUCING A CELLULOSE-FIBRE-BASED DRINKING STRAW

TISSUE PAPER AND METHOD FOR MANUFACTURING TISSUE PAPER

PAPER ENHANCING COMPOSITIONS, USES THEREOF AND ENHANCED PAPER

FLAME-RESISTANT PAPER FOR RADIO WAVE ABSORBER MEMBER AND PRODUCTION...

PREPARATION METHOD OF HEAT-NOT-BURN CIGARETTE PAPER WITH BORON NITR...

COMPOSITION FOR IMPROVING SOFTNESS OF TISSUE AND/OR TOWEL PRODUCTS

NOVEL WATER-SOLUBLE POLYMER COMPLEXES IN THE FORM OF AN INVERSE EMU...

PROCESS FOR PRODUCING COLOURED CARDBOARD IN A CARDBOARD PRODUCTION...

COMPOSITIONS AND METHODS FOR INCREASED WET AND DRY STRENGTH