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D21H21/10
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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
D21H21/10
Retention agents or drainage improvers
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Patents Grants
last 30 patents
Information
Patent Grant
Articles of manufacture comprising nanocellulose elements
Patent number
11,932,829
Issue date
Mar 19, 2024
Soane Materials LLC
David S. Soane
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Tissue paper with reduced fiber and methods of manufacture
Patent number
11,932,994
Issue date
Mar 19, 2024
North Carolina State University
Ronalds W. Gonzalez
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Process of making paper and paperboard products
Patent number
11,846,072
Issue date
Dec 19, 2023
FiberLean Technologies Limited
Per Svending
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Articles of manufacture comprising nanocellulose elements
Patent number
11,795,420
Issue date
Oct 24, 2023
Soane Materials LLC
David S. Soane
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Method of making paper or board products
Patent number
11,732,421
Issue date
Aug 22, 2023
FiberLean Technologies Limited
Per Svending
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
Method for producing multi-layer paper
Patent number
11,680,371
Issue date
Jun 20, 2023
Solenis Technologies, L.P.
Christoph Hamers
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for manufacture of paper or board and paper or board obtaine...
Patent number
11,535,985
Issue date
Dec 27, 2022
Kemira Oyj
Yuping Luo
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing polymer solutions
Patent number
11,518,695
Issue date
Dec 6, 2022
Kemira Oyj
Asko Karppi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for production of filler loaded surface enhanced pulp fibers
Patent number
11,499,269
Issue date
Nov 15, 2022
Domtar Paper Company LLC
Harshad Pande
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
Methods for making repulpable paper strings and straps through pult...
Patent number
11,434,608
Issue date
Sep 6, 2022
Enterprises International, Inc.
Halim Chtourou
D02 - YARNS MECHANICAL FINISHING OF YARNS OR ROPES WARPING OR BEAMING
Information
Patent Grant
Method of and an arrangement for adding a chemical to an approach f...
Patent number
11,352,749
Issue date
Jun 7, 2022
WETEND TECHNOLOGY OY
Jouni Matula
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Polymer product for improving retention of hydrophobic internal siz...
Patent number
11,339,539
Issue date
May 24, 2022
Kemira Oyj
Timo Valkealaakso
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Ethyleneimine polymer solution and method for producing same
Patent number
11,332,616
Issue date
May 17, 2022
Nippon Shokubai Co., Ltd.
Seiichi Suzuki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for production of film comprising microfibrillated cellulose
Patent number
11,319,671
Issue date
May 3, 2022
Stora Enso Oyj
Kaj Backfolk
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for production of a product comprising a first ply
Patent number
11,319,672
Issue date
May 3, 2022
Stora Enso Oyj
Kaj Backfolk
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Methods and apparatus for manufacturing fiber-based meat containers
Patent number
11,306,440
Issue date
Apr 19, 2022
Footprint International, LLC
Yoke Dou Chung
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Composition comprising cross-linked anionic, organic polymeric micr...
Patent number
11,306,441
Issue date
Apr 19, 2022
Solenis Technologies, L.P.
Christian Jehn-Rendu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Paper and paperboard products
Patent number
11,274,399
Issue date
Mar 15, 2022
FiberLean Technologies Limited
Per Svending
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Polymer, method for producing polymer and polymer flocculant
Patent number
11,261,276
Issue date
Mar 1, 2022
MITSUBISHI CHEMICAL CORPORATION
Kazunori Mukunoki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for producing cellulose pulp, cellulose pulp and use thereof...
Patent number
11,248,344
Issue date
Feb 15, 2022
Suzano S.A.
Otávio Mambrim Filho
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Surface treatment composition, its use and a method for producing p...
Patent number
11,208,766
Issue date
Dec 28, 2021
Kemira Oyj
Yuping Luo
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing paper, board or the like
Patent number
11,162,221
Issue date
Nov 2, 2021
Kemira Oyj
Tom Lundin
B32 - LAYERED PRODUCTS
Information
Patent Grant
Method for producing paper impregnated by a supercritical-pressure...
Patent number
11,091,878
Issue date
Aug 17, 2021
ARJO WIGGINS FINE PAPERS LIMITED
Céline Noel
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Brown stock wash control
Patent number
11,072,890
Issue date
Jul 27, 2021
Ecolab USA Inc.
Karry Mackie
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Boronic acid containing polymers for papermaking process
Patent number
11,035,080
Issue date
Jun 15, 2021
Ecolab USA Inc.
Zhiyi Zhang
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Using recycled waste water to make nonwoven fibrous materials suita...
Patent number
10,995,454
Issue date
May 4, 2021
3M Innovative Properties Company
Richard P. Merry
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Fluff dryer machine drainage aid
Patent number
10,988,899
Issue date
Apr 27, 2021
Ecolab USA Inc.
Luiz Wanderley Bratfisch Pace
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for making paper, paperboard or the like
Patent number
10,954,633
Issue date
Mar 23, 2021
Kemira Oyj
Christopher Michael Lewis
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
METHOD OF PAPER AND PAPERBOARD PRODUCTS
Publication number
20240133123
Publication date
Apr 25, 2024
FiberLean Technologies Limited
Per SVENDING
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PAPER AND PAPERBOARD PRODUCTS
Publication number
20240102249
Publication date
Mar 28, 2024
FiberLean Technologies Limited
Per SVENDING
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
TREATED ARTICLE, METHODS OF MAKING THE TREATED ARTICLE, AND DISPERS...
Publication number
20240003089
Publication date
Jan 4, 2024
AGC Chemicals Americas, Inc.
Tess Duffin Crosetto
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Sanitary Tissue Products Comprising Once-Dried Fibers
Publication number
20230320540
Publication date
Oct 12, 2023
The Procter & Gamble Company
Christopher Michael YOUNG
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Application
METHOD FOR MANUFACTURING PAPER AND CARDBOARD
Publication number
20230295877
Publication date
Sep 21, 2023
S.P.C.M. SA
Gatien FAUCHER
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
ARTICLES OF MANUFACTURE COMPRISING NANOCELLULOSE ELEMENTS
Publication number
20230227758
Publication date
Jul 20, 2023
Soane Materials LLC
David S. Soane
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Application
NOVEL SULFOBETAINE MONOMERS, PROCESS FOR PREPARING SAME, AND USES T...
Publication number
20230183174
Publication date
Jun 15, 2023
S.P.C.M. SA
Johann KIEFFER
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
FIBERBOARD MANUFACTURED WITH CELLULOSE NANOFIBRILS AS A BINDER AND...
Publication number
20230167607
Publication date
Jun 1, 2023
W.R. Meadows, Inc.
Mark W. Custer
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
METHOD FOR PRODUCTION OF FILLER LOADED SURFACE ENHANCED PULP FIBERS
Publication number
20230084180
Publication date
Mar 16, 2023
Domtar Paper Company, LLC
Harshad Pande
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PRODUCT CONTAINING AN ANIONIC CELLULOSE DERIVATIVE AND ITS USE IN P...
Publication number
20230053998
Publication date
Feb 23, 2023
KEMIRA OYJ
Mikko VIRTANEN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
N-VINYLLACTAM-CONTAINING POLYMERS FOR PAPERMAKING
Publication number
20220412008
Publication date
Dec 29, 2022
Solenis Technologies, L.P.
Qu-Ming Gu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
ARTICLES OF MANUFACTURE COMPRISING NANOCELLULOSE ELEMENTS
Publication number
20220412010
Publication date
Dec 29, 2022
Soane Materials LLC
David S. Soane
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS FOR MANUFACTURING PAPER OR CARDBOARD
Publication number
20220356650
Publication date
Nov 10, 2022
S.P.C.M. SA
Cyril BARRIERE
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Grass-Containing Liquid Packaging Board
Publication number
20220290374
Publication date
Sep 15, 2022
CREAPAPER GmbH
Uwe D'AGNONE
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
TREATED ARTICLE, METHODS OF MAKING THE TREATED ARTICLE, AND DISPERS...
Publication number
20220178078
Publication date
Jun 9, 2022
AGC Chemicals Americas, Inc.
Tess Duffin Crosetto
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PAPER AND PAPERBOARD PRODUCTS
Publication number
20220154408
Publication date
May 19, 2022
FiberLean Technologies Limited
Per SVENDING
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING CELLULOSE PULP, CELLULOSE PULP AND USE THEREOF...
Publication number
20220127789
Publication date
Apr 28, 2022
Suzano S.A.
Otávio MAMBRIM FILHO
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
STARCH COMPOSITION
Publication number
20220089842
Publication date
Mar 24, 2022
Asko KARPPI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
TISSUE PAPER WITH REDUCED FIBER AND METHODS OF MANUFACTURE
Publication number
20220064865
Publication date
Mar 3, 2022
North Carolina State University
Ronalds W. GONZALEZ
B82 - NANO-TECHNOLOGY
Information
Patent Application
SYNTHETIC METHOD FOR THE PREPARATION OF RHEOLOGICAL MODIFYING POLYM...
Publication number
20210317249
Publication date
Oct 14, 2021
POLYANALYTIK INC.
Joseph A. Paquette
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
CELLULOSIC FIBER ADDITIVE FORMED FROM KOMBUCHA BIOFILMS
Publication number
20210301471
Publication date
Sep 30, 2021
Shaun Moshasha
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PAPER AND PAPERBOARD PRODUCTS
Publication number
20210277607
Publication date
Sep 9, 2021
FiberLean Technologies Limited
Per SVENDING
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING MULTI-LAYER PAPER
Publication number
20210222371
Publication date
Jul 22, 2021
SOLENIS TECHNOLOGIES CAYMAN, L.P.
Christoph HAMERS
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method for manufacture of paper or board and paper or board obtaine...
Publication number
20210002827
Publication date
Jan 7, 2021
KEMIRA OYJ
Yuping Luo
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Methods and Apparatus for Manufacturing Fiber-Based Meat Containers
Publication number
20200407920
Publication date
Dec 31, 2020
Footprint International, LLC
Yoke Dou Chung
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL