at least one of the sheets having a fibrous composition differing from that of other sheets

Industry

CPC
D21H27/38

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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 D21H27/00Special paper not otherwise provided for

Current Industry

D21H27/38at least one of the sheets having a fibrous composition differing from that of other sheets

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Ply fibrous product
- Patent number 12,305,336
- Issue date May 20, 2025
- ESSITY HYGIENE AND HEALTH AKTIEBOLAG
- Ulrika Husmark
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Multilayer film comprising highly refined cellulose fibers
- Patent number 12,258,711
- Issue date Mar 25, 2025
- Stora Enso Oyj
- Isto Heiskanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Soft and strong tissue product including regenerated cellulose fibers
- Patent number 12,252,845
- Issue date Mar 18, 2025
- Kimberly-Clark Worldwide, Inc.
- Bo Shi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for preparing green slow-release preservative paper used for...
- Patent number 12,234,610
- Issue date Feb 25, 2025
- Bohai University
- Tong Sun
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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
Soft and strong tissue product including regenerated cellulose fibers
- Patent number 12,163,293
- Issue date Dec 10, 2024
- Kimberly-Clark Worldwide, Inc.
- Bo Shi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Active agent-containing articles that exhibit consumer acceptable a...
- Patent number 12,129,594
- Issue date Oct 29, 2024
- The Procter & Gamble Company
- Stephen Robert Glassmeyer
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
High strength and low stiffness hesperaloe tissue
- Patent number 12,123,146
- Issue date Oct 22, 2024
- Kimberly-Clark Worldwide, Inc.
- Kayla Elizabeth Rouse
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Flushable wipe and method of forming the same
- Patent number 12,123,148
- Issue date Oct 22, 2024
- First Quality Tissue, LLC
- Karthik Ramaratnam
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Corona-resistant N-grade insulation paper for variable frequency mo...
- Patent number 12,110,638
- Issue date Oct 8, 2024
- Sichuan University
- Junwen Ren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Tissues and paper towels incorporating surface enhanced pulp fibers...
- Patent number 12,104,327
- Issue date Oct 1, 2024
- Domtar Paper Company, LLC
- Bradley Langford
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Fibrous sheet with improved properties
- Patent number 12,043,963
- Issue date Jul 23, 2024
- Deborah J. Calewarts
- D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
Information Patent Grant
Durable tissue product
- Patent number 12,012,698
- Issue date Jun 18, 2024
- Maurizio Tirimacco
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Tissue products comprising crosslinked fibers
- Patent number 11,970,819
- Issue date Apr 30, 2024
- Stephen M. Lindsay
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Toilet tissue comprising a non-clingy surface
- Patent number 11,952,727
- Issue date Apr 9, 2024
- The Procter & Gamble Company
- Matthew Gary McKee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paperboard and a method of producing a paperboard
- Patent number 11,952,718
- Issue date Apr 9, 2024
- Stora Enso Oyj
- Frank Peng
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Tissue with nanofibrillar cellulose surface layer
- Patent number 11,952,726
- Issue date Apr 9, 2024
- GPCP IP Holdings LLC
- Carlos L. Salas Araujo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Resilient, multi-layered wiping product
- Patent number 11,939,726
- Issue date Mar 26, 2024
- Kimberly-Clark Worldwide, Inc.
- David A. Lilley
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Grant
Layered fibrous structures
- Patent number 11,846,073
- Issue date Dec 19, 2023
- The Procter & Gamble Company
- Matthew Gary McKee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Water-dispersible paper
- Patent number 11,802,378
- Issue date Oct 31, 2023
- NIPPON PAPER PAPYLIA CO., LTD.
- Masaki Kishimoto
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Tailored hemicellulose in non-wood fibers for tissue products
- Patent number 11,795,619
- Issue date Oct 24, 2023
- Kimberly-Clark Worldwide, Inc.
- Ning Wei
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Low-shedding aramid paper containing mica
- Patent number 11,788,234
- Issue date Oct 17, 2023
- DuPont Safety & Construction, Inc.
- Chris Dembrosky
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Multi-ply through-air dried tissue products comprising regenerated...
- Patent number 11,773,538
- Issue date Oct 3, 2023
- Kimberly-Clark Worldwide, Inc.
- Kevin J. Vogt
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Thick-caliper laminated paperboard and methods for making the same
- Patent number 11,773,540
- Issue date Oct 3, 2023
- Caraustar Industrial and Consumer Products Group, Inc.
- Josh Wolfenbarger
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
High strength and low stiffness hesperaloe tissue
- Patent number 11,773,539
- Issue date Oct 3, 2023
- Kimberly-Clark Worldwide, Inc.
- Kayla Elizabeth Rouse
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Multi-ply fibrous structure-containing articles
- Patent number 11,767,642
- Issue date Sep 26, 2023
- The Procter & Gamble Company
- Steven Lee Barnholtz
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Grant
Layered tissue comprising long, high-coarseness wood pulp fibers
- Patent number 11,746,473
- Issue date Sep 5, 2023
- Kimberly-Clark Worldwide, Inc.
- Thomas Gerard Shannon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for making multi-ply fibrous structure containing articles
- Patent number 11,732,422
- Issue date Aug 22, 2023
- The Procter & Gamble Company
- Steven Lee Barnholtz
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Multi-ply fibrous structures
- Patent number 11,708,668
- Issue date Jul 25, 2023
- The Procter & Gamble Company
- David William Cabell
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Active agent-containing articles that exhibit consumer acceptable a...
- Patent number 11,697,905
- Issue date Jul 11, 2023
- The Procter & Gamble Company
- Stephen Robert Glassmeyer
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...

Patents Applicationslast 30 patents

Information Patent Application
A MULTIPLY PAPERBOARD FOR USE IN FOOD OR LIQUID PACKAGING LAMINATES
- Publication number 20250229516
- Publication date Jul 17, 2025
- STORA ENSO OYJ
- Carl-Henrik Ljungqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
INSULATION PANEL FOR SHIPPING CARTONS AND METHOD OF MANUFACTURING T...
- Publication number 20250207333
- Publication date Jun 26, 2025
- SIMPLE CONTAINER SOLUTIONS, INC.
- Charles S. VEISEH
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Assymetric Paperboard
- Publication number 20250084592
- Publication date Mar 13, 2025
- Billerud Aktiebolag (publ)
- Fredrik Nordstrom
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MULTI-PLY PAPER CONTAINING USED PAPER FIBERS AND ADDITIONAL FIBERS
- Publication number 20250019903
- Publication date Jan 16, 2025
- CERTINA PRODUCTION AG
- Hans WEHRMANN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
TOWEL PRODUCTS COMPRISING REGENERATED CELLULOSE FIBER
- Publication number 20250012014
- Publication date Jan 9, 2025
- Kimberly-Clark Worldwide, Inc.
- Jessica N. Sherek
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
METHOD FOR MANUFACTURING A MULTIPLY PAPERBOARD, AND A MULTIPLY PAPE...
- Publication number 20240426060
- Publication date Dec 26, 2024
- STORA ENSO OYJ
- Pasi Valkamo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
BARRIER BOARD AND A METHOD TO PRODUCE IT
- Publication number 20240392511
- Publication date Nov 28, 2024
- Abnor Oy
- Björn-Erik FORSS
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
TISSUE PAPER MATERIAL AND TISSUE PAPER PRODUCT
- Publication number 20240352674
- Publication date Oct 24, 2024
- ESSITY HYGIENE AND HEALTH AKTIEBOLAG
- Emmanuelle KIENTZ
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ACTIVE AGENT-CONTAINING ARTICLES THAT EXHIBIT CONSUMER ACCEPTABLE A...
- Publication number 20240352661
- Publication date Oct 24, 2024
- The Procter & Gamble Company
- Stephen Robert Glassmeyer
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Application
BARRIER LAYERS COMPRISING NANOCELLULOSE ONTO THE SURFACE OF PAPER O...
- Publication number 20240352675
- Publication date Oct 24, 2024
- FiberLean Technologies Limited
- Robyn HILL
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
IMPREGNATING COATING LAYER FOR INSULATING SHEETSAND MULTILAYER LAMI...
- Publication number 20240351318
- Publication date Oct 24, 2024
- DUPONT SAFETY & CONSTRUCTION, INC.
- Benjamin Gaussens
- B32 - LAYERED PRODUCTS
Information Patent Application
TISSUE PAPER MATERIAL AND TISSUE PAPER PRODUCT INCLUDING NON-WOOD F...
- Publication number 20240318385
- Publication date Sep 26, 2024
- ESSITY HYGIENE AND HEALTH AKTIEBOLAG
- Hans-Jürgen LAMB
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MULTI-PLY LINER FOR USE IN CORRUGATED BOARD
- Publication number 20240263401
- Publication date Aug 8, 2024
- STORA ENSO OYJ
- Isto Heiskanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Corrugated Board for Humid Conditions
- Publication number 20240240407
- Publication date Jul 18, 2024
- Billerud Aktiebolag (publ)
- Magnus Bjorklund
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MULTIPLY CONTAINERBOARD FOR USE IN CORRUGATED BOARD
- Publication number 20240240408
- Publication date Jul 18, 2024
- STORA ENSO OYJ
- Isto Heiskanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
USE OF A HIGH-DENSITY PAPER SUBSTRATE, THE COATED HIGH-DENSITY SUBS...
- Publication number 20240200271
- Publication date Jun 20, 2024
- Tetra Laval Holdings & Finance S.A.
- Ulf Nyman
- B32 - LAYERED PRODUCTS
Information Patent Application
DURABLE TISSUE PRODUCT
- Publication number 20240183110
- Publication date Jun 6, 2024
- Kimberly-Clark Worldwide, Inc.
- Maurizio Tirimacco
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
BARRIER COATINGS APPLIED TO NANOCELLULOSE-COATED PAPER AND PAPERBOARD
- Publication number 20240167227
- Publication date May 23, 2024
- FiberLean Technologies Limited
- Thomas REEVE-LARSON
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MULTI-PLY FIBROUS STRUCTURE-CONTAINING ARTICLES
- Publication number 20240060243
- Publication date Feb 22, 2024
- The Procter & Gamble Company
- Steven Lee Barnholtz
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
A METHOD FOR PRODUCING A MULTILAYER MACHINE GLAZED PAPER COMPRISING...
- Publication number 20240003092
- Publication date Jan 4, 2024
- STORA ENSO OYJ
- Isto Heiskanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
HIGH STRENGTH AND LOW STIFFNESS HESPERALOE TISSUE
- Publication number 20230407574
- Publication date Dec 21, 2023
- Kimberly-Clark Worldwide, Inc.
- Kayla Elizabeth Rouse
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR PRODUCING A GREEN PAPER FOR PRODUCING A GAS DIFFUSION LA...
- Publication number 20230411632
- Publication date Dec 21, 2023
- GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
- Mario KELLER
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ACTIVE AGENT-CONTAINING ARTICLES THAT EXHIBIT CONSUMER ACCEPTABLE A...
- Publication number 20230313445
- Publication date Oct 5, 2023
- The Procter & Gamble Company
- Stephen Robert Glassmeyer
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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
Absorbent Product with Improved Capillary Pressure and Saturation C...
- Publication number 20230250586
- Publication date Aug 10, 2023
- Kimberly-Clark Worldwide, Inc.
- Charles W. Colman
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Application
Coreless Rolls of a Tissue Paper Product and Methods of Manufacturi...
- Publication number 20230250591
- Publication date Aug 10, 2023
- ESSITY HYGIENE AND HEALTH AKTIEBOLAG
- Sébastien Jeannot
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
WATER-RESISTANT FIBROUS MATERIAL AND METHOD FOR MANUFACTURING IT
- Publication number 20230243105
- Publication date Aug 3, 2023
- STORA ENSO OYJ
- Susanne Hansson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MULTI-PLY FIBROUS STRUCTURE-CONTAINING ARTICLES
- Publication number 20230228038
- Publication date Jul 20, 2023
- The Procter & Gamble Company
- Steven Lee Barnholtz
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
LAYERED FIBROUS STRUCTURES
- Publication number 20230220630
- Publication date Jul 13, 2023
- The Procter & Gamble Company
- Matthew Gary McKee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
TOILET TISSUE COMPRISING A NON-CLINGY SURFACE
- Publication number 20230212826
- Publication date Jul 6, 2023
- The Procter & Gamble Company
- Matthew Gary McKee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

at least one of the sheets having a fibrous composition differing from that of other sheets

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Ply fibrous product

Multilayer film comprising highly refined cellulose fibers

Soft and strong tissue product including regenerated cellulose fibers

Method for preparing green slow-release preservative paper used for...

Fibrous structure-containing articles

Soft and strong tissue product including regenerated cellulose fibers

Active agent-containing articles that exhibit consumer acceptable a...

High strength and low stiffness hesperaloe tissue

Flushable wipe and method of forming the same

Corona-resistant N-grade insulation paper for variable frequency mo...

Tissues and paper towels incorporating surface enhanced pulp fibers...

Fibrous sheet with improved properties

Durable tissue product

Tissue products comprising crosslinked fibers

Toilet tissue comprising a non-clingy surface

Paperboard and a method of producing a paperboard

Tissue with nanofibrillar cellulose surface layer

Resilient, multi-layered wiping product

Layered fibrous structures

Water-dispersible paper

Tailored hemicellulose in non-wood fibers for tissue products

Low-shedding aramid paper containing mica

Multi-ply through-air dried tissue products comprising regenerated...

Thick-caliper laminated paperboard and methods for making the same

High strength and low stiffness hesperaloe tissue

Multi-ply fibrous structure-containing articles

Layered tissue comprising long, high-coarseness wood pulp fibers

Process for making multi-ply fibrous structure containing articles

Multi-ply fibrous structures

Active agent-containing articles that exhibit consumer acceptable a...

Patents Applicationslast 30 patents

A MULTIPLY PAPERBOARD FOR USE IN FOOD OR LIQUID PACKAGING LAMINATES

INSULATION PANEL FOR SHIPPING CARTONS AND METHOD OF MANUFACTURING T...

Assymetric Paperboard

MULTI-PLY PAPER CONTAINING USED PAPER FIBERS AND ADDITIONAL FIBERS

TOWEL PRODUCTS COMPRISING REGENERATED CELLULOSE FIBER

METHOD FOR MANUFACTURING A MULTIPLY PAPERBOARD, AND A MULTIPLY PAPE...

BARRIER BOARD AND A METHOD TO PRODUCE IT

TISSUE PAPER MATERIAL AND TISSUE PAPER PRODUCT

ACTIVE AGENT-CONTAINING ARTICLES THAT EXHIBIT CONSUMER ACCEPTABLE A...

BARRIER LAYERS COMPRISING NANOCELLULOSE ONTO THE SURFACE OF PAPER O...

IMPREGNATING COATING LAYER FOR INSULATING SHEETSAND MULTILAYER LAMI...

TISSUE PAPER MATERIAL AND TISSUE PAPER PRODUCT INCLUDING NON-WOOD F...

MULTI-PLY LINER FOR USE IN CORRUGATED BOARD

Corrugated Board for Humid Conditions

MULTIPLY CONTAINERBOARD FOR USE IN CORRUGATED BOARD

USE OF A HIGH-DENSITY PAPER SUBSTRATE, THE COATED HIGH-DENSITY SUBS...

DURABLE TISSUE PRODUCT

BARRIER COATINGS APPLIED TO NANOCELLULOSE-COATED PAPER AND PAPERBOARD

MULTI-PLY FIBROUS STRUCTURE-CONTAINING ARTICLES

A METHOD FOR PRODUCING A MULTILAYER MACHINE GLAZED PAPER COMPRISING...

HIGH STRENGTH AND LOW STIFFNESS HESPERALOE TISSUE

METHOD FOR PRODUCING A GREEN PAPER FOR PRODUCING A GAS DIFFUSION LA...

ACTIVE AGENT-CONTAINING ARTICLES THAT EXHIBIT CONSUMER ACCEPTABLE A...

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

Absorbent Product with Improved Capillary Pressure and Saturation C...

Coreless Rolls of a Tissue Paper Product and Methods of Manufacturi...

WATER-RESISTANT FIBROUS MATERIAL AND METHOD FOR MANUFACTURING IT

MULTI-PLY FIBROUS STRUCTURE-CONTAINING ARTICLES

LAYERED FIBROUS STRUCTURES

TOILET TISSUE COMPRISING A NON-CLINGY SURFACE