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D21H21/18
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Parent Industries
D
TEXTILES PAPER
D21
Papermaking
D21H
PULP 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
D21H21/00
Non-fibrous material added to the pulp, characterised by its function, form or properties Paper-impregnating or coating material, characterised by its function, form or properties
Current Industry
D21H21/18
Reinforcing agents
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Patents Grants
last 30 patents
Information
Patent Grant
Reinforced paper for packaging of medical devices
Patent number
11,976,420
Issue date
May 7, 2024
PELTA MEDICAL PAPERS LTD
Lars Wahlstrom
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Packing paper
Patent number
11,965,291
Issue date
Apr 23, 2024
Mondi AG
Elisabeth Schwaiger
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Soft tissue produced using a structured fabric and energy efficient...
Patent number
11,959,226
Issue date
Apr 16, 2024
First Quality Tissue, LLC
Byrd Tyler Miller
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Low molecular weight dry powder polymer for use as paper-making dry...
Patent number
11,939,309
Issue date
Mar 26, 2024
Ecolab USA Inc.
Heqing Huang
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process and system for controlling temperature of a circulating foa...
Patent number
11,920,298
Issue date
Mar 5, 2024
Kimberly-Clark Worldwide, Inc.
Aisan Khodaei
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
Fiber body manufacturing method
Patent number
11,859,348
Issue date
Jan 2, 2024
Seiko Epson Corporation
Masahide Nakamura
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Oil-resistant agent for paper
Patent number
11,851,822
Issue date
Dec 26, 2023
Daikin Industries, Ltd.
Yuuki Yamamoto
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Soft tissue produced using a structured fabric and energy efficient...
Patent number
11,807,992
Issue date
Nov 7, 2023
First Quality Tissue, LLC
Byrd Tyler Miller
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Fibrous body manufacturing method and fibrous body manufacturing ap...
Patent number
11,802,377
Issue date
Oct 31, 2023
Seiko Epson Corporation
Masahiko Nakazawa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Paper strength improving additives, their manufacture and use in pa...
Patent number
11,802,376
Issue date
Oct 31, 2023
KEMIRA OYJ
Chen Lu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Powdery paper-strengthening agent, paper-strengthening agent soluti...
Patent number
11,795,620
Issue date
Oct 24, 2023
Arakawa Chemical Industries, Ltd.
Ryusuke Kambara
D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
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
Paperboard product
Patent number
11,753,773
Issue date
Sep 12, 2023
General Mills, Inc.
George Tuszkiewicz
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for fast dissolution of powder comprising low molecular wei...
Patent number
11,718,696
Issue date
Aug 8, 2023
Ecolab USA Inc.
Heqing Huang
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of manufacturing of a foam-formed cellulosic fibre-material,...
Patent number
11,692,313
Issue date
Jul 4, 2023
Tetra Laval Holdings & Finance S.A.
Mats Aldén
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Binder for glass paper
Patent number
11,673,979
Issue date
Jun 13, 2023
Denki Kagaku Kogyo Kabushiki Kaisha
Nobuyuki Tanno
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Soft, low lint, through air dried tissue and method of forming the...
Patent number
11,674,266
Issue date
Jun 13, 2023
First Quality Tissue, LLC
James E. Sealey
B32 - LAYERED PRODUCTS
Information
Patent Grant
Soft, low lint, through air dried tissue and method of forming the...
Patent number
11,668,052
Issue date
Jun 6, 2023
First Quality Tissue, LLC
James E. Sealey
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
Device for deacidifying, reinforcing and strengthening ancient books
Patent number
11,549,218
Issue date
Jan 10, 2023
South China University of Technology
Huiming Fan
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Manufacture of absorbent paper with low charge density imidazoliniu...
Patent number
11,542,662
Issue date
Jan 3, 2023
GPCP IP Holdings LLC
Yu Chen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Compositions and methods for providing increased strength in ceilin...
Patent number
11,512,020
Issue date
Nov 29, 2022
FiberLean Technologies Limited
David Skuse
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
Method for manufacturing a packaging material and a packaging mater...
Patent number
11,479,917
Issue date
Oct 25, 2022
Stora Enso Oyj
Nina Miikki
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for making a film comprising MFC
Patent number
11,459,432
Issue date
Oct 4, 2022
Stora Enso Oyj
Isto Heiskanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Zwitterionic imidazolinium surfactant and use in the manufacture of...
Patent number
11,408,127
Issue date
Aug 9, 2022
GPCP IP Holdings LLC
Yu Chen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Preparation method of cotton bast fiber and chitosan composite non-...
Patent number
11,383,189
Issue date
Jul 12, 2022
Jiangnan University
Xiuliang Hou
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Foam assisted application of strength additives to paper products
Patent number
11,365,515
Issue date
Jun 21, 2022
Solenis Technologies, L.P.
Mingxiang Luo
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for manufacturing a multi-layered paperboard, multi-layered...
Patent number
11,365,517
Issue date
Jun 21, 2022
Kemira Oyj
Matti Hietaniemi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR OBTAINING REINFORCED PACKAGING PAPER
Publication number
20240150968
Publication date
May 9, 2024
Consejo Superior de Investigaciones Cientificas (CSIC)
Nuria GOMEZ HERNANDEZ
C13 - SUGAR INDUSTRY
Information
Patent Application
A method, a paperboard product and use of a foam coater and a subse...
Publication number
20240133122
Publication date
Apr 25, 2024
METSÄ BOARD OYJ
Ari Kiviranta
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
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
METHOD FOR PRODUCING WET-RUNNING FRICTION PAPER
Publication number
20240035235
Publication date
Feb 1, 2024
SCHAEFFLER TECHNOLOGIES AG & CO. KG
Stefan STEINMETZ
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
AQUEOUS DISPERSION FOR IMPROVING BARRIER PROPERTIES
Publication number
20230416991
Publication date
Dec 28, 2023
ACTEGA DS GMBH
Anna Maier
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Process and System for Controlling Temperature of a Circulating Foa...
Publication number
20230399799
Publication date
Dec 14, 2023
Kimberly-Clark Worldwide, Inc.
Aisan Khodaei
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
LOW CELLULOSIC NON-WOOD FIBER PRODUCTS AND METHODS OF MAKING THE SAME
Publication number
20230332357
Publication date
Oct 19, 2023
Archer-Daniels-Midland Company
Ali Ayoub
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHODS FOR ANALYZING PAPER AND IMPROVING THE EFFECTIVENESS OF PAPE...
Publication number
20230313462
Publication date
Oct 5, 2023
Solenis Technologies, L.P.
Matthew Nicholas
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
STRENGTH IMPROVEMENT VIA SPRAYBOOM APPLICATION
Publication number
20230313467
Publication date
Oct 5, 2023
ECOLAB USA INC.
David Steven JORDAN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
FOAM-ASSISTED APPLICATION OF SIZING AGENTS TO PAPER PRODUCTS
Publication number
20230279614
Publication date
Sep 7, 2023
Solenis Technologies, L.P.
Ashley Hawkins Lewis
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SOFT, LOW LINT, THROUGH AIR DRIED TISSUE AND METHOD OF FORMING THE...
Publication number
20230265616
Publication date
Aug 24, 2023
FIRST QUALITY TISSUE, LLC
James E. Sealey
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PAPERMAKING AGENT, MANUFACTURING METHOD FOR PAPERMAKING AGENT AND P...
Publication number
20230203756
Publication date
Jun 29, 2023
Arakawa Chemical Industries, Ltd.
Ryusuke Kambara
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR MAKING MOISTURE-RESISTANT PAPER
Publication number
20230133654
Publication date
May 4, 2023
METGEN OY
Liji Sobhana SELEENMARY SOBHANADHAS
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR ON-SITE GLYOXYLATION OF POLYACRYLAMIDE
Publication number
20230129116
Publication date
Apr 27, 2023
KEMIRA OYJ
Asko KARPPI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
NOVEL COMPOSITION AND METHOD FOR PAPERMAKING
Publication number
20230078847
Publication date
Mar 16, 2023
ECOLAB USA INC.
Mingli WEI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
COMPOSITIONS AND METHODS FOR PROVIDING INCREASED STRENGTH IN CEILIN...
Publication number
20230060416
Publication date
Mar 2, 2023
FiberLean Technologies Limited
David SKUSE
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
POWDERY PAPER-STRENGTHENING AGENT, PAPER-STRENGTHENING AGENT SOLUTI...
Publication number
20230065141
Publication date
Mar 2, 2023
Arakawa Chemical Industries, Ltd.
Ryusuke KAMBARA
D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
Information
Patent Application
COMPOSITION AND ITS USE FOR USE IN MANUFACTURE OF PAPER, BOARD OR T...
Publication number
20230024255
Publication date
Jan 26, 2023
KEMIRA OYJ
Matti HIETANIEMI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
POWDERY PAPER-STRENGTHENING AGENT, PAPER-STRENGTHENING AGENT SOLUTI...
Publication number
20230002975
Publication date
Jan 5, 2023
ARAKAWA CHEMICAL INDUSTRIES, LTD.
Keisuke Okada
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
FIBER BODY MANUFACTURING METHOD
Publication number
20220412012
Publication date
Dec 29, 2022
SEIKO EPSON CORPORATION
Masahide NAKAMURA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PACKING PAPER
Publication number
20220403602
Publication date
Dec 22, 2022
Mondi AG
Elisabeth SCHWAIGER
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
REFINED CELLULOSE FIBER COMPOSITION
Publication number
20220363871
Publication date
Nov 17, 2022
STORA ENSO OYJ
Ulla Jansson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Sustainably-Sourced, High Strength Non Woven
Publication number
20220364307
Publication date
Nov 17, 2022
Fybervek Holdings LLC
Paul Latten
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PAPER-STRENGTHENING AGENT, PAPER, AND METHOD OF PRODUCING PAPER
Publication number
20220341095
Publication date
Oct 27, 2022
Arakawa Chemical Industries, Ltd.
Makoto Kobayashi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCTION OF A PRODUCT COMPRISING A FIRST PLY
Publication number
20220228319
Publication date
Jul 21, 2022
STORA ENSO OYJ
Kaj Backfolk
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
TISSUE PRODUCT MADE USING LASER ENGRAVED STRUCTURING BELT
Publication number
20220170209
Publication date
Jun 2, 2022
STRUCTURED I, LLC
James E. Sealey
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
POWDERY PAPER STRENGTHENING AGENT, METHOD FOR PRODUCING POWDERY PAP...
Publication number
20220169767
Publication date
Jun 2, 2022
Arakawa Chemical Industries, Ltd.
Shogo NISHIURA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
TISSUE PRODUCT MADE USING LASER ENGRAVED STRUCTURING BELT
Publication number
20220170208
Publication date
Jun 2, 2022
STRUCTURED I, LLC
James E. Sealey
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE