Elements suited for chemical verification or impeding chemical tampering

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CPC
D21H21/46

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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

Current Industry

D21H21/46Elements suited for chemical verification or impeding chemical tampering

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Patents Grantslast 30 patents

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
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
Paper that cannot be forged using solvents
- Patent number 9,057,159
- Issue date Jun 16, 2015
- Honnorat Recherches & Services
- Andre Honnorat
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper including bodies carrying at least one biochemical marker
- Patent number 7,235,289
- Issue date Jun 26, 2007
- Arjowiggins Security
- Sandrine Rancien
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Security paper
- Patent number 7,041,364
- Issue date May 9, 2006
- Arjo Wiggins Security Sas
- Sandrine Rancien
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Styrene-acrylate copolymer composition suitable for surface size
- Patent number 6,734,232
- Issue date May 11, 2004
- Georgia-Pacific Resins, Inc
- Cornel Hagiopol
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Heat-sensitive recording materials and method for authenticity chec...
- Patent number 6,632,773
- Issue date Oct 14, 2003
- Mitsubishi HiTec Paper Flensburg GmbH
- Erich Kranz
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Security feature for paper products
- Patent number 6,214,766
- Issue date Apr 10, 2001
- Westvaco Corporation
- Frederick L. Kurrle
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Security paper
- Patent number 6,159,585
- Issue date Dec 12, 2000
- Georgia-Pacific Corporation
- David A. Rittenhouse
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Authenticatable bleached chemical paper products
- Patent number 6,019,872
- Issue date Feb 1, 2000
- Westvaco Corporation
- Frederick L. Kurrle
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Chemical solution for detecting counterfeit paper currency
- Patent number 5,662,735
- Issue date Sep 2, 1997
- Piergiorgio Pifferi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Methods for tagging and tracing materials with nucleic acids
- Patent number 5,451,505
- Issue date Sep 19, 1995
- Hoffmann-La Roche Inc.
- Gavin D. Dollinger
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Method of tagging and detecting drugs, crops, chemical compounds an...
- Patent number 5,409,839
- Issue date Apr 25, 1995
- International Electronic Technology Corp.
- Giorgio Balestrieri
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Document security method and system
- Patent number 5,290,068
- Issue date Mar 1, 1994
- Nocopi International Ltd.
- Arshevir Gundjian
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Forgery-proof safety paper
- Patent number 5,264,081
- Issue date Nov 23, 1993
- Societe Anonyme: Aussedat-Rey
- Andre Honnorat
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Authenticatable security paper and authenticating composition therefor
- Patent number 5,261,954
- Issue date Nov 16, 1993
- The Wiggins Teape Group Limited
- Peter Collings
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Authenticatable security paper
- Patent number 5,188,871
- Issue date Feb 23, 1993
- The Wiggins Teape Group Limited
- Peter Collings
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Non-fluorescent forgery-proof safety paper and document obtained
- Patent number 5,156,717
- Issue date Oct 20, 1992
- Aussedat-Rey
- Andre G. A. Honnorat
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Method and apparatus for high security crypto-marking for protectin...
- Patent number 5,139,812
- Issue date Aug 18, 1992
- Bioprobe Systems
- Philippe Lebacq
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Forgery-proof security paper and aqueous or organic composition esp...
- Patent number 5,123,999
- Issue date Jun 23, 1992
- Aussedat-Rey
- Andre Honnorat
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of detecting counterfeit paper currency
- Patent number 5,063,163
- Issue date Nov 5, 1991
- Ach Group, Inc.
- Dov Carmeli
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Toner adhesion-enhancing coating for security documents
- Patent number 5,045,426
- Issue date Sep 3, 1991
- The Standard Register Company
- Theodore Maierson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Security fibers and other materials made luminescent by a dyeing pr...
- Patent number 4,921,280
- Issue date May 1, 1990
- Michel Jalon
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Information device
- Patent number 4,904,507
- Issue date Feb 27, 1990
- Imperial Chemical Industries PLC
- David Greenwood
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Security document and method of testing same
- Patent number 4,740,015
- Issue date Apr 26, 1988
- Moore Business Forms, Inc.
- Richard D. Caprio
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Security marking method, materials provided with security marks
- Patent number 4,736,425
- Issue date Apr 5, 1988
- Petrel Company
- Michel Jalon
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Unfalsifiable safety paper
- Patent number 4,725,497
- Issue date Feb 16, 1988
- Societe Anonyme: Aussedat-Rey
- Andre Honnorat
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Security fibers and other materials made luminescent by a dyeing pr...
- Patent number 4,655,788
- Issue date Apr 7, 1987
- Michel Jalon
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Check paper that is protected against forgery and tampering
- Patent number 4,629,630
- Issue date Dec 16, 1986
- GAO Gesellschaft fuer Automation und Organisation mbH
- Ludwig Devrient
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Safety means, paper and document against falsification by chemical...
- Patent number 4,618,402
- Issue date Oct 21, 1986
- Arjomari-Prioux
- Michel Camus
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER

Patents Applicationslast 30 patents

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
PAPER THAT CANNOT BE FORGED USING SOLVENTS
- Publication number 20140027078
- Publication date Jan 30, 2014
- Honnorat Recherches & Services
- Andre Honnorat
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
LASER-MARKABLE SUBSTRATE, AND ASSOCIATED MANUFACTURING METHOD
- Publication number 20120103545
- Publication date May 3, 2012
- ARJOWIGGINS SECURITY
- Sandrine Rancien
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Assembly Comprising an Article to be Authenticated and an Authentic...
- Publication number 20120025515
- Publication date Feb 2, 2012
- ARJOWIGGINS SECURITY
- Sandrine Rancien
- G07 - CHECKING-DEVICES
Information Patent Application
IMPROVED COATING METHOD
- Publication number 20110250418
- Publication date Oct 13, 2011
- ARJO WIGGINS FINE PAPERS LIMITED
- Michael Pitcher
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Document Authentication Using Security Ink and Chemical Reactant
- Publication number 20100059984
- Publication date Mar 11, 2010
- NOCOPI TECHNOLOGIES, INC.
- JoAnn Domanski
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
CHEMILUMINESCENT SYSTEM
- Publication number 20080128666
- Publication date Jun 5, 2008
- Crayola, LLC
- Keith J. Allison
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
Marking apparatus for nucleic acid marking of items
- Publication number 20060121181
- Publication date Jun 8, 2006
- Robert Sleat
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Security paper
- Publication number 20040096635
- Publication date May 20, 2004
- Sandrine Rancien
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Paper including bodies carrying at least one biochemical marker
- Publication number 20040063117
- Publication date Apr 1, 2004
- Sandrine Rancien
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Styrene-acrylate copolymer composition suitable for surface size
- Publication number 20030176556
- Publication date Sep 18, 2003
- Georgia-Pacific Resins, Inc.
- Cornel Hagiopol
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Elements suited for chemical verification or impeding chemical tampering

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

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

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

Paper that cannot be forged using solvents

Paper including bodies carrying at least one biochemical marker

Security paper

Styrene-acrylate copolymer composition suitable for surface size

Heat-sensitive recording materials and method for authenticity chec...

Security feature for paper products

Security paper

Authenticatable bleached chemical paper products

Chemical solution for detecting counterfeit paper currency

Methods for tagging and tracing materials with nucleic acids

Method of tagging and detecting drugs, crops, chemical compounds an...

Document security method and system

Forgery-proof safety paper

Authenticatable security paper and authenticating composition therefor

Authenticatable security paper

Non-fluorescent forgery-proof safety paper and document obtained

Method and apparatus for high security crypto-marking for protectin...

Forgery-proof security paper and aqueous or organic composition esp...

Method of detecting counterfeit paper currency

Toner adhesion-enhancing coating for security documents

Security fibers and other materials made luminescent by a dyeing pr...

Information device

Security document and method of testing same

Security marking method, materials provided with security marks

Unfalsifiable safety paper

Security fibers and other materials made luminescent by a dyeing pr...

Check paper that is protected against forgery and tampering

Safety means, paper and document against falsification by chemical...

Patents Applicationslast 30 patents

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

PAPER THAT CANNOT BE FORGED USING SOLVENTS

LASER-MARKABLE SUBSTRATE, AND ASSOCIATED MANUFACTURING METHOD

Assembly Comprising an Article to be Authenticated and an Authentic...

IMPROVED COATING METHOD

Document Authentication Using Security Ink and Chemical Reactant

CHEMILUMINESCENT SYSTEM

Marking apparatus for nucleic acid marking of items

Security paper

Paper including bodies carrying at least one biochemical marker

Styrene-acrylate copolymer composition suitable for surface size