of old paper as in books, documents

Industry

CPC
D21H25/18

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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 D21H25/00After-treatment of paper not provided for in groups D21H17/00 - D21H23/00

Current Industry

D21H25/18of old paper as in books, documents

Industries

Patents Grantslast 30 patents

Information Patent Grant
Liquid-state temporary reinforcing material, preparation method the...
- Patent number 11,873,605
- Issue date Jan 16, 2024
- SHANGHAI UNIVERSITY
- Hongjie Luo
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Composition for use in the finishing, preservation, restoration of...
- Patent number 11,773,533
- Issue date Oct 3, 2023
- Universita Degli Studi Di Roma “La Sapienza”
- Armandodoriano Bianco
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Device for deacidifying, reinforcing and strengthening ancient books
- Patent number 11,549,218
- Issue date Jan 10, 2023
- South China University of Technology
- Huiming Fan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for strengthening and reinforcing ancient books
- Patent number 11,486,096
- Issue date Nov 1, 2022
- South China University of Technology
- Huiming Fan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and device for protecting paper sheet
- Patent number 11,346,055
- Issue date May 31, 2022
- HANGZHOU ZHONGCAI TECHNOLOGY CO., LTD.
- Xiwen Zhang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Deacidification treatment of printed cellulosic materials
- Patent number 9,464,383
- Issue date Oct 11, 2016
- Richard Daniel Smith
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and device for a de-acidifying paper
- Patent number 8,540,848
- Issue date Sep 24, 2013
- OmniAccess B.V.
- Stephanus Gerardus Johannes Blankenborg
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Cyclodextrin glucanotransferase (CGTase), obtained from<I>Bacillus...
- Patent number 7,888,104
- Issue date Feb 15, 2011
- Henkel AG & Co. KGaA
- Beatrix Kottwitz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Endoglucanase STCE and cellulase preparation containing the same
- Patent number 7,595,182
- Issue date Sep 29, 2009
- Meiji Seika Kaisha, Ltd.,
- Jinichiro Koga
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Method to remove foxing stains from paper & celluloid items
- Patent number 7,462,202
- Issue date Dec 9, 2008
- Jeffrey Lee Kaplan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Device and method for mass deacidification, elimination of free aci...
- Patent number 7,211,221
- Issue date May 1, 2007
- Universidad Politecnica De Cataluna
- Rogelio Areal Guerra
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Archival spray composition
- Patent number 7,041,236
- Issue date May 9, 2006
- The Sherwin-Williams Company
- Barbara J. Farkas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Archival spray composition
- Patent number 6,984,416
- Issue date Jan 10, 2006
- The Sherwin-Williams Company
- Barbara J. Farkas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Archival spray composition
- Patent number 6,974,632
- Issue date Dec 13, 2005
- The Sherwin-Williams Company
- Barbara J. Farkas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Tetrahydrocarbazoles, a process for the preparation of those compou...
- Patent number 6,967,215
- Issue date Nov 22, 2005
- Ciba Specialty Chemicals Corporation
- Wolfgang Haap
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Archival spray composition
- Patent number 6,890,455
- Issue date May 10, 2005
- The Sherwin-Williams Company
- Barbara J. Farkas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Preservation of paper and textile materials
- Patent number 6,800,176
- Issue date Oct 5, 2004
- E. I. Du Pont de Nemours and Company
- Andrew Kelsey Birchenall
- B44 - DECORATIVE ARTS
Information Patent Grant
Composition for de-acidification of cellulose material
- Patent number 6,743,336
- Issue date Jun 1, 2004
- Universitat Politecnica de Catalunya
- Areal Guerra Rogelio
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Diazo derivatives and process for their preparation
- Patent number 6,740,741
- Issue date May 25, 2004
- Consiglio Nazionale Delle Ricerche
- Antonio Zappala'
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Deacidification treatment of printed cellulosic materials
- Patent number 6,676,856
- Issue date Jan 13, 2004
- Richard Daniel Smith
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Active substance and device for the deacidification of printed matter
- Patent number 6,645,298
- Issue date Nov 11, 2003
- Ruag Munition
- Christian Herren
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Article and method for retarding the deterioration rate of acidic p...
- Patent number 6,641,877
- Issue date Nov 4, 2003
- Ronald E. Johnson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for disacidifying paper products with printings or inscriptions
- Patent number 6,471,915
- Issue date Oct 29, 2002
- Oswald Bell
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for drying paper
- Patent number 6,354,019
- Issue date Mar 12, 2002
- Becker Preservotec GmbH
- Ernest Becker
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Deacidification of cellulose based materials using hydrofluoroether...
- Patent number 6,342,098
- Issue date Jan 29, 2002
- Preservation Technologies LP
- Lee H. Leiner
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and device for removing lamination
- Patent number 6,338,771
- Issue date Jan 15, 2002
- Becker Preservotec GmbH
- Ernst Becker
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and apparatus for the deacidification of library materials
- Patent number 6,325,982
- Issue date Dec 4, 2001
- Preservation Technologies, L.P.
- Lee H. Leiner
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Alkoxides with alkaline earths and titanium, zirconium and/or hafni...
- Patent number 6,294,682
- Issue date Sep 25, 2001
- E. I. Du Pont de Nemours and Company
- Hartwig Rauleder
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for deacidification of papers and books by fluidizing a bed...
- Patent number 6,214,165
- Issue date Apr 10, 2001
- Robert A. Kundrot
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Deacidification of cellulose based materials using hydrofluoroether...
- Patent number 6,080,448
- Issue date Jun 27, 2000
- Preservation Technologies LP
- Lee H. Leiner
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
COMPOSITION FOR USE IN THE FINISHING, PRESERVATION, RESTORATION OF...
- Publication number 20210108362
- Publication date Apr 15, 2021
- UNIVERSITA DEGLI STUDI DI ROMA "LA SAPIENZA"
- Armandodoriano BIANCO
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
LIQUID-STATE TEMPORARY REINFORCING MATERIAL, PREPARATION METHOD THE...
- Publication number 20200217009
- Publication date Jul 9, 2020
- Hongjie LUO
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NOVEL DEVICE FOR DEACIDIFYING, REINFORCING AND STRENGTHENING ANCIEN...
- Publication number 20200157742
- Publication date May 21, 2020
- SOUTH CHINA UNIVERSITY OF TECHNOLOGY
- Huiming FAN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NOVEL METHOD FOR STRENGTHENING AND REINFORCING ANCIENT BOOKS
- Publication number 20200157743
- Publication date May 21, 2020
- SOUTH CHINA UNIVERSITY OF TECHNOLOGY
- Huiming FAN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD AND DEVICE FOR PROTECTING PAPER SHEET
- Publication number 20190390410
- Publication date Dec 26, 2019
- HANGZHOU ZHONGCAI TECHNOLOGY CO., LTD.
- Xiwen ZHANG
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Deacidification Treatments Of Printed Cellulosic Materials
- Publication number 20140356542
- Publication date Dec 4, 2014
- Richard Daniel Smith
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Deacidification Treatment Of Printed Cellulosic Materials
- Publication number 20130302524
- Publication date Nov 14, 2013
- Richard Daniel Smith
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD OF DEACIDIFYING CELLULOSE BASED MATERIALS
- Publication number 20130158250
- Publication date Jun 20, 2013
- Honeywell International, Inc.
- Raymond H. THOMAS
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD AND DEVICE FOR A DE-ACIDIFYING PAPER
- Publication number 20110091641
- Publication date Apr 21, 2011
- OmniAccess B.V.
- Stephanus Gerardus Johannes Blankenborg
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Process For Preservation Of Cellulosic Materials
- Publication number 20080017336
- Publication date Jan 24, 2008
- Wolfgang Wachter
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Antioxidant for an organic material and method for treating the same
- Publication number 20070187650
- Publication date Aug 16, 2007
- ZFB ZENTRUM FUR BUCHERHALTUNG GMBH
- Manfred Anders
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Endoglucanase stce and cellulase preparation containing the same
- Publication number 20070111278
- Publication date May 17, 2007
- Jinichiro Koga
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Application
Method to remove foxing stains from paper & celluloid items
- Publication number 20070022542
- Publication date Feb 1, 2007
- Jeffrey Lee Kaplan
- B08 - CLEANING
Information Patent Application
Archival spray composition
- Publication number 20050147827
- Publication date Jul 7, 2005
- Barbara J. Farkas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Archival spray composition
- Publication number 20050139125
- Publication date Jun 30, 2005
- Barbara J. Farkas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Archival spray composition
- Publication number 20050139809
- Publication date Jun 30, 2005
- Barbara J. Farkas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Basic suspension, its preparation and process for paper deacidifica...
- Publication number 20050042380
- Publication date Feb 24, 2005
- Piero Baglioni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Novel cyclodextrin glucanotransferase (cgtase), obtained from<I> ba...
- Publication number 20040235125
- Publication date Nov 25, 2004
- Beatrix Kottwitz
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Application
Archival spray composition
- Publication number 20040216642
- Publication date Nov 4, 2004
- Barbara J. Farkas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for the de-acidification of celluso material
- Publication number 20040194902
- Publication date Oct 7, 2004
- Universitat Politecnica De Catalunya
- Areal Guerra Rogelio
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Tetrahydrocarbazoles, a process for the preparation of those compou...
- Publication number 20040097535
- Publication date May 20, 2004
- Wolfgang Haap
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Active substance and device for the deacidification of printed matter
- Publication number 20040056235
- Publication date Mar 25, 2004
- RUAG MUNITION
- Christian Herren
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Method of deacidifying cellulose-based materials
- Publication number 20030150571
- Publication date Aug 14, 2003
- Raymond H. Thomas
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Novel diazo derivatives and process for their preparation
- Publication number 20030065153
- Publication date Apr 3, 2003
- Antonio Zappala
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for the preservation of paper products
- Publication number 20030059337
- Publication date Mar 27, 2003
- Antonio Zappala'
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Article and method for retarding the deterioration rate of acidic p...
- Publication number 20020195217
- Publication date Dec 26, 2002
- Ronald E. Johnson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

of old paper as in books, documents

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Liquid-state temporary reinforcing material, preparation method the...

Composition for use in the finishing, preservation, restoration of...

Device for deacidifying, reinforcing and strengthening ancient books

Method for strengthening and reinforcing ancient books

Method and device for protecting paper sheet

Deacidification treatment of printed cellulosic materials

Method and device for a de-acidifying paper

Cyclodextrin glucanotransferase (CGTase), obtained from<I>Bacillus...

Endoglucanase STCE and cellulase preparation containing the same

Method to remove foxing stains from paper & celluloid items

Device and method for mass deacidification, elimination of free aci...

Archival spray composition

Archival spray composition

Archival spray composition

Tetrahydrocarbazoles, a process for the preparation of those compou...

Archival spray composition

Preservation of paper and textile materials

Composition for de-acidification of cellulose material

Diazo derivatives and process for their preparation

Deacidification treatment of printed cellulosic materials

Active substance and device for the deacidification of printed matter

Article and method for retarding the deterioration rate of acidic p...

Method for disacidifying paper products with printings or inscriptions

Method for drying paper

Deacidification of cellulose based materials using hydrofluoroether...

Method and device for removing lamination

Method and apparatus for the deacidification of library materials

Alkoxides with alkaline earths and titanium, zirconium and/or hafni...

Method for deacidification of papers and books by fluidizing a bed...

Deacidification of cellulose based materials using hydrofluoroether...

Patents Applicationslast 30 patents

COMPOSITION FOR USE IN THE FINISHING, PRESERVATION, RESTORATION OF...

LIQUID-STATE TEMPORARY REINFORCING MATERIAL, PREPARATION METHOD THE...

NOVEL DEVICE FOR DEACIDIFYING, REINFORCING AND STRENGTHENING ANCIEN...

NOVEL METHOD FOR STRENGTHENING AND REINFORCING ANCIENT BOOKS

METHOD AND DEVICE FOR PROTECTING PAPER SHEET

Deacidification Treatments Of Printed Cellulosic Materials

Deacidification Treatment Of Printed Cellulosic Materials

METHOD OF DEACIDIFYING CELLULOSE BASED MATERIALS

METHOD AND DEVICE FOR A DE-ACIDIFYING PAPER

Process For Preservation Of Cellulosic Materials

Antioxidant for an organic material and method for treating the same

Endoglucanase stce and cellulase preparation containing the same

Method to remove foxing stains from paper & celluloid items

Archival spray composition

Archival spray composition

Archival spray composition

Basic suspension, its preparation and process for paper deacidifica...

Novel cyclodextrin glucanotransferase (cgtase), obtained from<I> ba...

Archival spray composition

Method for the de-acidification of celluso material

Tetrahydrocarbazoles, a process for the preparation of those compou...

Active substance and device for the deacidification of printed matter

Method of deacidifying cellulose-based materials

Novel diazo derivatives and process for their preparation

Method for the preservation of paper products

Article and method for retarding the deterioration rate of acidic p...