Wet strength agents

Industry

CPC
D21H21/20

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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 D21H21/00Non-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

D21H21/20Wet strength agents

Industries

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Patents Grantslast 30 patents

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
Formulation for size press applications
- Patent number 12,203,220
- Issue date Jan 21, 2025
- Ecolab USA Inc.
- David J. Castro
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Coated paperboard for beverage container carriers and corresponding...
- Patent number 12,179,980
- Issue date Dec 31, 2024
- Stora Enso Oyj
- Carl-Henrik Ljungqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Fibrous structure-containing articles
- Patent number 12,168,854
- Issue date Dec 17, 2024
- The Procter & Gamble Company
- Christopher Michael Young
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Fiber-based food containers
- Patent number 12,168,853
- Issue date Dec 17, 2024
- Footprint International, LLC
- Yoke Dou Chung
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Functionalization and reinforcement in the dry state and in the wet...
- Patent number 12,162,963
- Issue date Dec 10, 2024
- Centre National de la Recherche Scientifique
- Lauric Gaffiot
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Methods and apparatus for manufacturing fiber-based produce containers
- Patent number 12,163,290
- Issue date Dec 10, 2024
- Footprint International, LLC
- Yoke Dou Chung
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Water resistant paper and solution for producing same and building...
- Patent number 12,157,977
- Issue date Dec 3, 2024
- Agriboard Green Building Systems, LLC
- Eddie Caruthers
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Fibrous structure-containing articles that exhibit consumer relevan...
- Patent number 12,128,665
- Issue date Oct 29, 2024
- The Procter & Gamble Company
- Christopher Michael Young
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Grant
Fibrous structure-containing articles that exhibit consumer relevan...
- Patent number 12,122,137
- Issue date Oct 22, 2024
- The Procter & Gamble Company
- Christopher Michael Young
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Paper products incorporating surface enhanced pulp fibers and havin...
- Patent number 12,116,732
- Issue date Oct 15, 2024
- Domtar Paper Company, LLC
- Bradley Langford
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Biodegradable coating composition for mulching paper and mulching p...
- Patent number 12,077,702
- Issue date Sep 3, 2024
- PAPYRUS CO., LTD
- Hyun Hwang Choi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Methods and apparatus for manufacturing fiber-based produce containers
- Patent number 12,071,727
- Issue date Aug 27, 2024
- Footprint International, LLC
- Yoke Dou Chung
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Epidermal paper-based electronic devices
- Patent number 12,070,315
- Issue date Aug 27, 2024
- Purdue Research Foundation
- Ramses Valentin Martinez
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Aqueous glyoxalated polyacrylamide composition
- Patent number 12,065,527
- Issue date Aug 20, 2024
- Solenis Technologies, L.P.
- Daniel F. Varnell
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for treating microfibrillated cellulose
- Patent number 12,018,433
- Issue date Jun 25, 2024
- Kai Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Tissue product made using laser engraved structuring belt
- Patent number 12,006,635
- Issue date Jun 11, 2024
- STRUCTURED I, LLC
- James E. Sealey
- 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
Wet laid disposable absorbent structures with high wet strength and...
- Patent number 11,952,721
- Issue date Apr 9, 2024
- First Quality Tissue, LLC
- James E. Sealey
- 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
Fibrous structures
- Patent number 11,879,215
- Issue date Jan 23, 2024
- The Procter & Gamble Company
- Fei Wang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Fibrous structure-containing articles that exhibit consumer relevan...
- Patent number 11,858,245
- Issue date Jan 2, 2024
- The Procter & Gamble Company
- Christopher Michael Young
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Paper strength improvement using metal chelates and synthetic catio...
- Patent number 11,834,792
- Issue date Dec 5, 2023
- Kemira Oyj
- Clayton Campbell
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of manufacturing sanitary paper for dog feces and sanitary p...
- Patent number 11,821,144
- Issue date Nov 21, 2023
- MORRIS & COCO., LTD.
- Tae Bong Jung
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Sound absorbing and insulating member and method for manufacturing...
- Patent number 11,807,994
- Issue date Nov 7, 2023
- Toyota Shatai Kabushiki Kaisha
- Makoto Segi
- B60 - VEHICLES IN GENERAL
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
Methods of making multi-ply fibrous sheets
- Patent number 11,781,270
- Issue date Oct 10, 2023
- GPCP IP Holdings LLC
- Peter Gordon Anderson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Increasing paper strength by surface treatment
- Patent number 11,781,271
- Issue date Oct 10, 2023
- S.P.C.M. SA
- Gatien Faucher
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Wet laid disposable absorbent structures with high wet strength and...
- Patent number 11,751,728
- Issue date Sep 12, 2023
- First Quality Tissue, LLC
- James E. Sealey
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of producing absorbent structures with high wet strength, ab...
- Patent number 11,725,345
- Issue date Aug 15, 2023
- STRUCTURED I, LLC
- James E. Sealey
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
RECYCLABLE PAPER OF HIGH WET STRENGTH
- Publication number 20250052008
- Publication date Feb 13, 2025
- Billerud Aktiebolag (publ)
- Karin Athley
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
FUNCTIONALIZATION AND REINFORCEMENT IN THE DRY STATE AND IN THE WET...
- Publication number 20250051486
- Publication date Feb 13, 2025
- Centre National de la Recherche Scientifique
- Lauric GAFFIOT
- 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
STRENGTH SYNERGY BETWEEN POLYMER AND PAPERMAKING STRENGTH AID
- Publication number 20240417929
- Publication date Dec 19, 2024
- ECOLAB USA INC.
- Zhi CHEN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Composition and Method for Making a Water Filter by Accretion
- Publication number 20240367149
- Publication date Nov 7, 2024
- Koslow Technologies Corporation
- Jules A. Koslow
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESS FOR PREPARING AN AQUEOUS GLYOXALATED POLYACRYLAMIDE COMPOSI...
- Publication number 20240360261
- Publication date Oct 31, 2024
- Solenis Technologies, L.P.
- Daniel F. Varnell
- 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
FIBROUS STERILIZABLE MATERIAL FOR PACKAGING OF MEDICAL DEVICES AND...
- Publication number 20240279877
- Publication date Aug 22, 2024
- Ahlstrom Oyj
- Menno Dufour
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
LOW MOLECULAR WEIGHT DRY POWDER POLYMER FOR USE AS PAPER-MAKING DRY...
- Publication number 20240262802
- Publication date Aug 8, 2024
- ECOLAB USA INC.
- Heqing Huang
- C07 - ORGANIC CHEMISTRY
Information Patent Application
SOFT TISSUE PRODUCED USING A STRUCTURED FABRIC AND ENERGY EFFICIENT...
- Publication number 20240218604
- Publication date Jul 4, 2024
- FIRST QUALITY TISSUE, LLC
- Byrd Tyler Miller
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SOFT TISSUE PRODUCED USING A STRUCTURED FABRIC AND ENERGY EFFICIENT...
- Publication number 20240218605
- Publication date Jul 4, 2024
- FIRST QUALITY TISSUE, LLC
- Byrd Tyler Miller
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
WET LAID PAPER AND PAPERBOARD PRODUCTS WITH HIGH WET STRENGTH AND M...
- Publication number 20240218603
- Publication date Jul 4, 2024
- FIRST QUALITY TISSUE, LLC
- James E. Sealey
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
FILTER MATERIAL FOR FOOD PACKAGING
- Publication number 20240175214
- Publication date May 30, 2024
- Andrew K. Jordan
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
WET LAID DISPOSABLE ABSORBENT STRUCTURES WITH HIGH WET STRENGTH AND...
- Publication number 20240125051
- Publication date Apr 18, 2024
- FIRST QUALITY TISSUE, LLC
- James E. Sealey II
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
WET LAID DISPOSABLE ABSORBENT STRUCTURES WITH HIGH WET STRENGTH AND...
- Publication number 20240023765
- Publication date Jan 25, 2024
- FIRST QUALITY TISSUE, LLC
- James E. Sealey
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
COATED PAPERBOARD FOR BEVERAGE CONTAINER CARRIERS AND CORRESPONDING...
- Publication number 20240010405
- Publication date Jan 11, 2024
- STORA ENSO OYJ
- Carl-Henrik Ljungqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MULTI-PLY PAPER RODUCTS AND METHODS OF MAKING LOW LINT MULTI-PLY PA...
- Publication number 20230407566
- Publication date Dec 21, 2023
- GPCP IP Holdings LLC
- Peter G. Anderson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
WET LAID DISPOSABLE ABSORBENT STRUCTURES WITH HIGH WET STRENGTH AND...
- Publication number 20230407573
- Publication date Dec 21, 2023
- FIRST QUALITY TISSUE, LLC
- James E. Sealey
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
WET LAID PAPER AND PAPERBOARD PRODUCTS WITH HIGH WET STRENGTH AND M...
- Publication number 20230407571
- Publication date Dec 21, 2023
- FIRST QUALITY TISSUE, LLC
- James E. Sealey
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ABSORBENT PAPER PRODUCTS HAVING UNIQUE PHYSICAL STRENGTH PROPERTIES
- Publication number 20230383471
- Publication date Nov 30, 2023
- Mercer International Inc.
- Tobias Ziegenbein
- B32 - LAYERED PRODUCTS
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
ABSORBENT PAPER PRODUCTS HAVING UNIQUE PHYSICAL STRENGTH PROPERTIES
- Publication number 20230323606
- Publication date Oct 12, 2023
- Mercer International Inc.
- Tobias Ziegenbein
- B32 - LAYERED PRODUCTS
Information Patent Application
GLYOXYLATED STARCH ADDITIVE FOR PULP PRODUCTS
- Publication number 20230304226
- Publication date Sep 28, 2023
- The Board of Trustees of Western Michigan University
- Abdus Salam
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MOBILE DISPERSION SYSTEM AND METHODS FOR THE RESUSPENSION OF DRIED...
- Publication number 20230279612
- Publication date Sep 7, 2023
- FiberLean Technologies Limited
- Paymaan TAHAMTAN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
FIBROUS STRUCTURE-CONTAINING ARTICLES THAT EXHIBIT CONSUMER RELEVAN...
- Publication number 20230271402
- Publication date Aug 31, 2023
- The Procter & Gamble Company
- Christopher Michael Young
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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
FIBROUS STRUCTURE-CONTAINING ARTICLES THAT EXHIBIT CONSUMER RELEVAN...
- Publication number 20230256705
- Publication date Aug 17, 2023
- The Procter & Gamble Company
- Christopher Michael Young
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
SAMPLE PAD FOR MEDICAL DIAGNOSIS KIT, AND PRODUCTION METHOD THEREFOR
- Publication number 20230255528
- Publication date Aug 17, 2023
- ENVIONEER CO., LTD
- Seong Eun PARK
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Fibrous Elements and Fibrous Structures Employing Same
- Publication number 20230228003
- Publication date Jul 20, 2023
- The Procter & Gamble Company
- Steven Lee Barnholtz
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
FIBROUS STRUCTURE-CONTAINING ARTICLES THAT EXHIBIT CONSUMER RELEVAN...
- Publication number 20230226800
- Publication date Jul 20, 2023
- The Procter & Gamble Company
- Christopher Michael Young
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING

Wet strength agents

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Process for producing paper or board and a product thereof

Formulation for size press applications

Coated paperboard for beverage container carriers and corresponding...

Fibrous structure-containing articles

Fiber-based food containers

Functionalization and reinforcement in the dry state and in the wet...

Methods and apparatus for manufacturing fiber-based produce containers

Water resistant paper and solution for producing same and building...

Fibrous structure-containing articles that exhibit consumer relevan...

Fibrous structure-containing articles that exhibit consumer relevan...

Paper products incorporating surface enhanced pulp fibers and havin...

Biodegradable coating composition for mulching paper and mulching p...

Methods and apparatus for manufacturing fiber-based produce containers

Epidermal paper-based electronic devices

Aqueous glyoxalated polyacrylamide composition

Process for treating microfibrillated cellulose

Tissue product made using laser engraved structuring belt

Soft tissue produced using a structured fabric and energy efficient...

Wet laid disposable absorbent structures with high wet strength and...

Low molecular weight dry powder polymer for use as paper-making dry...

Fibrous structures

Fibrous structure-containing articles that exhibit consumer relevan...

Paper strength improvement using metal chelates and synthetic catio...

Method of manufacturing sanitary paper for dog feces and sanitary p...

Sound absorbing and insulating member and method for manufacturing...

Soft tissue produced using a structured fabric and energy efficient...

Methods of making multi-ply fibrous sheets

Increasing paper strength by surface treatment

Wet laid disposable absorbent structures with high wet strength and...

Method of producing absorbent structures with high wet strength, ab...

Patents Applicationslast 30 patents

RECYCLABLE PAPER OF HIGH WET STRENGTH

FUNCTIONALIZATION AND REINFORCEMENT IN THE DRY STATE AND IN THE WET...

CITRIC ACID-CATALYSED CURRAN MODIFIED CARD BOARD MATERIALS

STRENGTH SYNERGY BETWEEN POLYMER AND PAPERMAKING STRENGTH AID

Composition and Method for Making a Water Filter by Accretion

PROCESS FOR PREPARING AN AQUEOUS GLYOXALATED POLYACRYLAMIDE COMPOSI...

USE OF MODIFIED LIGNIN AS A WET END STRENGTH ADDITIVE

FIBROUS STERILIZABLE MATERIAL FOR PACKAGING OF MEDICAL DEVICES AND...

LOW MOLECULAR WEIGHT DRY POWDER POLYMER FOR USE AS PAPER-MAKING DRY...

SOFT TISSUE PRODUCED USING A STRUCTURED FABRIC AND ENERGY EFFICIENT...

SOFT TISSUE PRODUCED USING A STRUCTURED FABRIC AND ENERGY EFFICIENT...

WET LAID PAPER AND PAPERBOARD PRODUCTS WITH HIGH WET STRENGTH AND M...

FILTER MATERIAL FOR FOOD PACKAGING

WET LAID DISPOSABLE ABSORBENT STRUCTURES WITH HIGH WET STRENGTH AND...

WET LAID DISPOSABLE ABSORBENT STRUCTURES WITH HIGH WET STRENGTH AND...

COATED PAPERBOARD FOR BEVERAGE CONTAINER CARRIERS AND CORRESPONDING...

MULTI-PLY PAPER RODUCTS AND METHODS OF MAKING LOW LINT MULTI-PLY PA...

WET LAID DISPOSABLE ABSORBENT STRUCTURES WITH HIGH WET STRENGTH AND...

WET LAID PAPER AND PAPERBOARD PRODUCTS WITH HIGH WET STRENGTH AND M...

ABSORBENT PAPER PRODUCTS HAVING UNIQUE PHYSICAL STRENGTH PROPERTIES

Sanitary Tissue Products Comprising Once-Dried Fibers

ABSORBENT PAPER PRODUCTS HAVING UNIQUE PHYSICAL STRENGTH PROPERTIES

GLYOXYLATED STARCH ADDITIVE FOR PULP PRODUCTS

MOBILE DISPERSION SYSTEM AND METHODS FOR THE RESUSPENSION OF DRIED...

FIBROUS STRUCTURE-CONTAINING ARTICLES THAT EXHIBIT CONSUMER RELEVAN...

SOFT, LOW LINT, THROUGH AIR DRIED TISSUE AND METHOD OF FORMING THE...

FIBROUS STRUCTURE-CONTAINING ARTICLES THAT EXHIBIT CONSUMER RELEVAN...

SAMPLE PAD FOR MEDICAL DIAGNOSIS KIT, AND PRODUCTION METHOD THEREFOR

Fibrous Elements and Fibrous Structures Employing Same

FIBROUS STRUCTURE-CONTAINING ARTICLES THAT EXHIBIT CONSUMER RELEVAN...