characterised by the manner in which substances are added

Industry

CPC
D21H23/02

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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 D21H23/00Processes or apparatus for adding material to the pulp or to the paper

Current Industry

D21H23/02characterised by the manner in which substances are added

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Method to form a web comprising fibers
- Patent number 10,927,503
- Issue date Feb 23, 2021
- Stora Enso Oyj
- Kaj Backfolk
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of preparing a treated article and treated article formed th...
- Patent number 9,499,943
- Issue date Nov 22, 2016
- AGC Chemicals Americas, Inc.
- Michael J. Sanchez
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method of preparing a treated article and treated article formed th...
- Patent number 9,133,584
- Issue date Sep 15, 2015
- AGC Chemicals Americas, Inc.
- Michael J. Sanchez
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of preparing a treated article and treated article formed th...
- Patent number 8,771,470
- Issue date Jul 8, 2014
- AGC Chemicals Americas, Inc.
- Michael J. Sanchez
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of mixing a paper making chemical into a fiber suspension flow
- Patent number 7,758,725
- Issue date Jul 20, 2010
- Wetend Technologies Oy
- Jouni Matula
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Marking substance and security markings for testing the authenticit...
- Patent number 7,367,592
- Issue date May 6, 2008
- WHD elektronische Prueftechnik GmbH
- Frank Puttkammer
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Method and apparatus for feeding a chemical into a liquid flow
- Patent number 7,234,857
- Issue date Jun 26, 2007
- Wetend Technologies Oy
- Jouni Matula
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for sizing paper and similar products
- Patent number 5,407,537
- Issue date Apr 18, 1995
- Exxon Chemical Patents Inc.
- Alberto Malatesta
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
2400544
- Patent number 2,400,544
- Issue date May 21, 1946
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
2374214
- Patent number 2,374,214
- Issue date Apr 24, 1945
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
Method Of Preparing A Treated Article And Treated Article Formed Th...
- Publication number 20140290883
- Publication date Oct 2, 2014
- Michael J. Sanchez
- B32 - LAYERED PRODUCTS
Information Patent Application
METHOD OF PREPARING A TREATED ARTICLE AND TREATED ARTICLE FORMED TH...
- Publication number 20130180678
- Publication date Jul 18, 2013
- Michael J. Sanchez
- B32 - LAYERED PRODUCTS
Information Patent Application
METHOD AND APPARATUS FOR FEEDING CHEMICALS INTO A PROCESS LIQUID FLOW
- Publication number 20110226432
- Publication date Sep 22, 2011
- WETEND TECHNOLOGIES OY
- Jouni Matula
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method and Apparatus for Feeding Chemicals Into a Process Liquid Flow
- Publication number 20080230194
- Publication date Sep 25, 2008
- WETEND TECHNOLOGIES OY
- Jouni Matula
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method of mixing a paper making chemical into a fiber suspension flow
- Publication number 20070258316
- Publication date Nov 8, 2007
- WETEND TECHNOLOGIES OY
- Jouni Matula
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method of preparing modified cellulose pulp
- Publication number 20060169432
- Publication date Aug 3, 2006
- Nils Schroder
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method and apparatus for feeding a chemical into a liquid flow
- Publication number 20020131325
- Publication date Sep 19, 2002
- Jouni Matula
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

characterised by the manner in which substances are added

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method to form a web comprising fibers

Method of preparing a treated article and treated article formed th...

Method of preparing a treated article and treated article formed th...

Method of preparing a treated article and treated article formed th...

Method of mixing a paper making chemical into a fiber suspension flow

Marking substance and security markings for testing the authenticit...

Method and apparatus for feeding a chemical into a liquid flow

Process for sizing paper and similar products

2400544

2374214

Patents Applicationslast 30 patents

Method Of Preparing A Treated Article And Treated Article Formed Th...

METHOD OF PREPARING A TREATED ARTICLE AND TREATED ARTICLE FORMED TH...

METHOD AND APPARATUS FOR FEEDING CHEMICALS INTO A PROCESS LIQUID FLOW

Method and Apparatus for Feeding Chemicals Into a Process Liquid Flow

Method of mixing a paper making chemical into a fiber suspension flow

Method of preparing modified cellulose pulp

Method and apparatus for feeding a chemical into a liquid flow