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D21H21/40

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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

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Patents Grantslast 30 patents

Information Patent Grant
Oxidized cellulose materials
- Patent number 12,276,069
- Issue date Apr 15, 2025
- GP Cellulose GmbH
- Charles E. Courchene
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Methods for verifying the authenticity of products
- Patent number 12,024,825
- Issue date Jul 2, 2024
- Omya International AG
- Roger Bollström
- G07 - CHECKING-DEVICES
Information Patent Grant
Use of nanoparticles to tune index of refraction of layers of a pol...
- Patent number 12,005,728
- Issue date Jun 11, 2024
- Crane & Co., Inc.
- Nancy J. Gettens
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Use of nanoparticles to tune index of refraction of layers of a pol...
- Patent number 11,945,253
- Issue date Apr 2, 2024
- Crane & Co., Inc.
- Nancy J. Gettens
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Multi-luminescent security element and value or security product co...
- Patent number 11,879,083
- Issue date Jan 23, 2024
- Bundesdruckerei GmbH
- Christian Kunath
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Optically variable security devices
- Patent number 11,768,321
- Issue date Sep 26, 2023
- Viavi Solutions Inc.
- Roger W. Phillips
- B32 - LAYERED PRODUCTS
Information Patent Grant
Volume hologram sheet to be embedded, forgery prevention paper, and...
- Patent number 11,597,230
- Issue date Mar 7, 2023
- Dai Nippon Printing Co., Ltd.
- Nobuko Oikawa
- B32 - LAYERED PRODUCTS
Information Patent Grant
Shaped objects for use in security applications
- Patent number 11,352,750
- Issue date Jun 7, 2022
- Council of Scientific and Industrial Research
- Kadhiravan Shanmuganathan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Multi-luminescent security element and value or security product co...
- Patent number 11,214,734
- Issue date Jan 4, 2022
- Bundesdruckerei GmbH
- Christian Kunath
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for securing flexible hinges binding laminate sheets into se...
- Patent number 11,084,305
- Issue date Aug 10, 2021
- CANADIAN BANK NOTE COMPANY, LIMITED
- Thivaharan Thurailingam
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Volume hologram sheet to be embedded, forgery prevention paper, and...
- Patent number 11,077,698
- Issue date Aug 3, 2021
- Dai Nippon Printing Co., Ltd.
- Nobuko Oikawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Security pigment, luminescent polymer resin and method for producin...
- Patent number 10,995,231
- Issue date May 4, 2021
- GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
- Johann Kecht
- B32 - LAYERED PRODUCTS
Information Patent Grant
Core-shell particle-based security pigment and method for productio...
- Patent number 10,988,629
- Issue date Apr 27, 2021
- GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
- Johann Kecht
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Pigment system, luminescent dye system, and value document
- Patent number 10,953,684
- Issue date Mar 23, 2021
- GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
- Johann Kecht
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Anti-counterfeiting pattern having optically variable structure and...
- Patent number 10,919,334
- Issue date Feb 16, 2021
- CHINA BANKNOTE INK CO., LTD.
- Xing Zhang
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Oxidized cellulose containing packaging materials
- Patent number 10,900,177
- Issue date Jan 26, 2021
- GP Cellulose GmbH
- Charles E. Courchene
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Security pigment based on core-shell particles, and production method
- Patent number 10,870,307
- Issue date Dec 22, 2020
- GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
- Johann Kecht
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Watermarked paper
- Patent number 10,737,525
- Issue date Aug 11, 2020
- Toppan Printing Co., Ltd.
- Hidetaka Ide
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Creation of a transparent polymer window with a field of lenses in...
- Patent number 10,654,256
- Issue date May 19, 2020
- KBA-NotaSys SA
- Johannes Georg Schaede
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Printing paper without ink
- Patent number 10,639,920
- Issue date May 5, 2020
- Stora Enso Oyj
- Nina Miikki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Watermarking
- Patent number 10,632,780
- Issue date Apr 28, 2020
- PORTALS DE LA RUE LIMITED
- Malcolm Paul Baker
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Security document having enhanced foil durability
- Patent number 10,434,814
- Issue date Oct 8, 2019
- Neenah, Inc.
- David Bray
- B32 - LAYERED PRODUCTS
Information Patent Grant
Method and apparatus for manufacturing watermarked paper
- Patent number 10,428,457
- Issue date Oct 1, 2019
- Fedrigoni S.p.A.
- Ivo Planeta
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Recording medium
- Patent number 10,392,753
- Issue date Aug 27, 2019
- TAGIT—EAS LTD.
- Vladimir Manov
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method for marking a feature substance, security feature, document...
- Patent number 10,363,767
- Issue date Jul 30, 2019
- GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
- Kai Uwe Stock
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Wrapping paper having transparent regions
- Patent number 10,362,801
- Issue date Jul 30, 2019
- Delfortgroup AG
- Roland Zitturi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Creation of a transparent window in a security substrate for securi...
- Patent number 10,350,840
- Issue date Jul 16, 2019
- KBA-NotaSys SA
- Aurélie Berthon
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Electrically conductive, colored interference pigments
- Patent number 10,266,699
- Issue date Apr 23, 2019
- Merck Patent GmbH
- Reinhold Rueger
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Security element for a security document and process for the produc...
- Patent number 10,259,252
- Issue date Apr 16, 2019
- Leonhard Kurz Stiftung & Co. KG
- Juri Attner
- B32 - LAYERED PRODUCTS
Information Patent Grant
Security sheet including an iridescent security mark
- Patent number 10,259,247
- Issue date Apr 16, 2019
- Arjowiggins Security
- Philippe Dietemann
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
PREPARATION METHOD OF ECO-FRIENDLY LONG-LASTING HEAT-SENSITIVE PAPER
- Publication number 20240384473
- Publication date Nov 21, 2024
- JIANGXI HESHUOFENG NEW MATERIAL CO., LTD.
- Xiaofeng ZHU
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
OXIDIZED CELLULOSE MATERIALS
- Publication number 20230332358
- Publication date Oct 19, 2023
- GP Cellulose GMbH
- Charles E. Courchene
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
OPTICALLY VARIABLE SECURITY DEVICES
- Publication number 20230101526
- Publication date Mar 30, 2023
- VIAVI SOLUTIONS INC.
- Roger W. PHILLIPS
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
USE OF NANOPARTICLES TO TUNE INDEX OF REFRACTION OF LAYERS OF A POL...
- Publication number 20220227158
- Publication date Jul 21, 2022
- Crane & Co., Inc.
- Nancy J. GETTENS
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Multi-Luminescent Security Element and Value or Security Product Co...
- Publication number 20220195293
- Publication date Jun 23, 2022
- BUNDESDRUCKEREI GMBH
- Christian Kunath
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MICROPARTICLE COMPOSITION COMPRISING AN ORGANIC IR ABSORBING PIGMENT
- Publication number 20210388223
- Publication date Dec 16, 2021
- BASF SE
- Roland Hinrich STAFF
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
WATERMARKED DECOR PAPER
- Publication number 20210381170
- Publication date Dec 9, 2021
- AHLSTROM-MUNKSJÖ OYJ
- Sébastien CHARIGNON
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
VOLUME HOLOGRAM SHEET TO BE EMBEDDED, FORGERY PREVENTION PAPER, AND...
- Publication number 20210339555
- Publication date Nov 4, 2021
- DAI NIPPON PRINTING CO., LTD.
- Nobuko Oikawa
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
METHOD OF TAGGING A SUBSTRATE
- Publication number 20210324584
- Publication date Oct 21, 2021
- Omya International AG
- Roger Bollström
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
OXIDIZED CELLULOSE CONTAINING PACKAGING MATERIALS
- Publication number 20210108375
- Publication date Apr 15, 2021
- GP Cellulose GMbH
- Charles E. Courchene
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
SHAPED OBJECTS FOR USE IN SECURITY APPLICATIONS
- Publication number 20200217017
- Publication date Jul 9, 2020
- Council of Scientific and Industrial Research
- Kadhiravan SHANMUGANATHAN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for Securing Flexible Hinges Binding Laminate Sheets into Se...
- Publication number 20200207135
- Publication date Jul 2, 2020
- Canadian Bank Note Company, Limited
- Thivaharan Thurailingham
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
OPTICALLY VARIABLE SECURITY DEVICES
- Publication number 20190346596
- Publication date Nov 14, 2019
- VIAVI Solutions Inc.
- Roger W. PHILLIPS
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
VOLUME HOLOGRAM SHEET TO BE EMBEDDED, FORGERY PREVENTION PAPER, AND...
- Publication number 20190232709
- Publication date Aug 1, 2019
- DAI NIPPON PRINTING CO., LTD.
- Nobuko Oikawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
OXIDIZED CELLULOSE CONTAINING PACKAGING MATERIALS
- Publication number 20190226153
- Publication date Jul 25, 2019
- GP Cellulose GMbH
- Charles E. Courchene
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PRINTING PAPER WITHOUT INK
- Publication number 20180281493
- Publication date Oct 4, 2018
- STORA ENSO OYJ
- Nina MIIKKI
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
METHOD FOR SECURING FLEXIBLE HINGES BINDING LAMINATE SHEETS INTO SE...
- Publication number 20180147872
- Publication date May 31, 2018
- Canadian Bank Note Company, Limited
- Thivaharan THURAILINGAM
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
Wrapping Paper Having Transparent Regions
- Publication number 20180125114
- Publication date May 10, 2018
- delfortgroup AG
- Roland Zitturi
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Application
WATERMARKED PAPER
- Publication number 20180086131
- Publication date Mar 29, 2018
- Toppan Printing Co., Ltd.
- Hidetaka Ide
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
HIGH GLOSS METAL EFFECT PAPERS AND BOARDS
- Publication number 20180058009
- Publication date Mar 1, 2018
- BASF SE
- Michelle RICHERT
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PRINTED DOCUMENT CONTROL WITH VERIFIED UNIQUE WATERMARKS
- Publication number 20170289391
- Publication date Oct 5, 2017
- Dell Software Inc.
- Samuel James Liddicott
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WATERMARKING
- Publication number 20170239973
- Publication date Aug 24, 2017
- DE LA RUE INTERNATIONAL LIMITED
- Malcolm Paul BAKER
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
VOLUME HOLOGRAM SHEET TO BE EMBEDDED, FORGERY PREVENTION PAPER, AND...
- Publication number 20170157971
- Publication date Jun 8, 2017
- DAI NIPPON PRINTING CO., LTD.
- Nobuko Oikawa
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
NEW FLUORESCENT COMPOUNDS
- Publication number 20170073520
- Publication date Mar 16, 2017
- BASF SE
- Karin EBERIUS
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
CREATION OF A TRANSPARENT WINDOW IN A SECURITY SUBSTRATE FOR SECURI...
- Publication number 20160339653
- Publication date Nov 24, 2016
- KBA-NOTASYS SA
- Aurélie BERTHON
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
METHOD FOR THE SURFACE APPLICATION OF A SECURITY DEVICE TO A SUBSTRATE
- Publication number 20160229215
- Publication date Aug 11, 2016
- CRANE & CO., INC.
- Giles D. Prett
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
SYSTEMS AND METHODS FOR REVERSING BANKNOTE LIMPNESS
- Publication number 20160090696
- Publication date Mar 31, 2016
- Spectra Systems Corporation
- Nabil Lawandy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for Marking a Feature Substance, Security Feature, Document...
- Publication number 20160075163
- Publication date Mar 17, 2016
- Giesecke & Devrient GmbH
- Kai Uwe STOCK
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
ANTI-COUNTERFEIT PAPER
- Publication number 20150125660
- Publication date May 7, 2015
- TOPPAN PRINTING CO., LTD.
- Hidetaka IDE
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
ELECTROTYPE FOR FORMING AN IMAGE DURING A PAPER MAKING PROCESS
- Publication number 20150075739
- Publication date Mar 19, 2015
- DE LA RUE INTERNATIONAL LIMITED
- Paul Howland
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Agents facilitating proof of genuineness or preventing fraudulent alteration

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Oxidized cellulose materials

Methods for verifying the authenticity of products

Use of nanoparticles to tune index of refraction of layers of a pol...

Use of nanoparticles to tune index of refraction of layers of a pol...

Multi-luminescent security element and value or security product co...

Optically variable security devices

Volume hologram sheet to be embedded, forgery prevention paper, and...

Shaped objects for use in security applications

Multi-luminescent security element and value or security product co...

Method for securing flexible hinges binding laminate sheets into se...

Volume hologram sheet to be embedded, forgery prevention paper, and...

Security pigment, luminescent polymer resin and method for producin...

Core-shell particle-based security pigment and method for productio...

Pigment system, luminescent dye system, and value document

Anti-counterfeiting pattern having optically variable structure and...

Oxidized cellulose containing packaging materials

Security pigment based on core-shell particles, and production method

Watermarked paper

Creation of a transparent polymer window with a field of lenses in...

Printing paper without ink

Watermarking

Security document having enhanced foil durability

Method and apparatus for manufacturing watermarked paper

Recording medium

Method for marking a feature substance, security feature, document...

Wrapping paper having transparent regions

Creation of a transparent window in a security substrate for securi...

Electrically conductive, colored interference pigments

Security element for a security document and process for the produc...

Security sheet including an iridescent security mark

Patents Applicationslast 30 patents

PREPARATION METHOD OF ECO-FRIENDLY LONG-LASTING HEAT-SENSITIVE PAPER

OXIDIZED CELLULOSE MATERIALS

OPTICALLY VARIABLE SECURITY DEVICES

USE OF NANOPARTICLES TO TUNE INDEX OF REFRACTION OF LAYERS OF A POL...

Multi-Luminescent Security Element and Value or Security Product Co...

MICROPARTICLE COMPOSITION COMPRISING AN ORGANIC IR ABSORBING PIGMENT

WATERMARKED DECOR PAPER

VOLUME HOLOGRAM SHEET TO BE EMBEDDED, FORGERY PREVENTION PAPER, AND...

METHOD OF TAGGING A SUBSTRATE

OXIDIZED CELLULOSE CONTAINING PACKAGING MATERIALS

SHAPED OBJECTS FOR USE IN SECURITY APPLICATIONS

Method for Securing Flexible Hinges Binding Laminate Sheets into Se...

OPTICALLY VARIABLE SECURITY DEVICES

VOLUME HOLOGRAM SHEET TO BE EMBEDDED, FORGERY PREVENTION PAPER, AND...

OXIDIZED CELLULOSE CONTAINING PACKAGING MATERIALS

PRINTING PAPER WITHOUT INK

METHOD FOR SECURING FLEXIBLE HINGES BINDING LAMINATE SHEETS INTO SE...

Wrapping Paper Having Transparent Regions

WATERMARKED PAPER

HIGH GLOSS METAL EFFECT PAPERS AND BOARDS

PRINTED DOCUMENT CONTROL WITH VERIFIED UNIQUE WATERMARKS

WATERMARKING

VOLUME HOLOGRAM SHEET TO BE EMBEDDED, FORGERY PREVENTION PAPER, AND...

NEW FLUORESCENT COMPOUNDS

CREATION OF A TRANSPARENT WINDOW IN A SECURITY SUBSTRATE FOR SECURI...

METHOD FOR THE SURFACE APPLICATION OF A SECURITY DEVICE TO A SUBSTRATE

SYSTEMS AND METHODS FOR REVERSING BANKNOTE LIMPNESS

Method for Marking a Feature Substance, Security Feature, Document...

ANTI-COUNTERFEIT PAPER

ELECTROTYPE FOR FORMING AN IMAGE DURING A PAPER MAKING PROCESS