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D21C3/026
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D
TEXTILES PAPER
D21
Papermaking
D21C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS APPARATUS THEREFOR
D21C3/00
Pulping cellulose-containing materials
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D21C3/026
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Patents Grants
last 30 patents
Information
Patent Grant
Method for manufacturing dissolving pulp
Patent number
11,066,784
Issue date
Jul 20, 2021
SÖDRA SKOGSÄGARNA EKONOMISK FÖRENING
Jim Parkås
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for delignifying and bleaching pulp
Patent number
10,006,169
Issue date
Jun 26, 2018
Evonik Degussa GmbH
Thomas Dietz
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of manufacturing pulp for corrugated medium
Patent number
9,399,835
Issue date
Jul 26, 2016
Packaging Corporation of America
Ventzislav H. Kirov
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Methods for pretreatment and processing of biomass
Patent number
8,262,853
Issue date
Sep 11, 2012
The Texas A&M University System
Mark Thomas Holtzapple
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Grant
Cellulose production from lignocellulosic biomass
Patent number
6,620,292
Issue date
Sep 16, 2003
PureVision Technology, Inc.
Richard C. Wingerson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of treating lignocellulosic biomass to produce cellulose
Patent number
6,419,788
Issue date
Jul 16, 2002
PureVision Technology, Inc.
Richard C. Wingerson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
System and method for operating a pulp mill
Patent number
5,783,037
Issue date
Jul 21, 1998
MG Industries
Sudhir R. Brahmbhatt
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing bleached sulfate pulp having a long fiber frac...
Patent number
5,427,651
Issue date
Jun 27, 1995
Mo och Domsjo Aktiebolag
Jonas A. I. Lindahl
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for the manufacture of pulp for paper, and fiberboard produ...
Patent number
5,277,760
Issue date
Jan 11, 1994
Sigurd Fongen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus and process for the delignification of cellulose pulp
Patent number
5,034,095
Issue date
Jul 23, 1991
Oji Paper Co., Ltd.
Junichiro Kido
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Production of high strength linerboard with oxygen and alkali
Patent number
4,978,426
Issue date
Dec 18, 1990
Westvaco Corporation
Frank P. Lowry
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of delignification of cellulosic fiber material
Patent number
4,895,619
Issue date
Jan 23, 1990
Kamyr AB
Bjorn Ahs
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus for mixing oxygen gas with medium consistency...
Patent number
4,886,577
Issue date
Dec 12, 1989
Kamyr, Inc.
William E. Wiley
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
High-yield chemical pulping
Patent number
4,869,783
Issue date
Sep 26, 1989
The Mead Corporation
Zenon C. Prusas
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing chemimechanical high yield pulp using an oxyge...
Patent number
4,534,397
Issue date
Aug 13, 1985
AGA Aktiebolag
Hans Norrstrom
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for the oxygen delignification of pulp mill rejects
Patent number
4,435,249
Issue date
Mar 6, 1984
The Black Clawson Co.
Larry D. Markham
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Oxygen pulping with recycled liquor
Patent number
4,248,662
Issue date
Feb 3, 1981
The Black Clawson Company
Scott A. Wallick
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Delignification of cellulosic material with an alkaline aqueous med...
Patent number
4,089,737
Issue date
May 16, 1978
Toyo Pulp Company, Ltd.
Tadashi Nagano
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for obtaining seed hull commodities including cellulosic fi...
Patent number
4,087,316
Issue date
May 2, 1978
Cotton Incorporated
Gay M. Jividen
C13 - SUGAR INDUSTRY
Information
Patent Grant
3769152
Patent number
3,769,152
Issue date
Oct 30, 1973
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3274049
Patent number
3,274,049
Issue date
Sep 20, 1966
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
2928868
Patent number
2,928,868
Issue date
Mar 15, 1960
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
2926114
Patent number
2,926,114
Issue date
Feb 23, 1960
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
2243050
Patent number
2,243,050
Issue date
May 20, 1941
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
1987195
Patent number
1,987,195
Issue date
Jan 8, 1935
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PREPARING FLUFF PULP FROM BAMBOOS AND FLUFF PULP PREPARE...
Publication number
20240328083
Publication date
Oct 3, 2024
SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Yichao LEI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS AND APPARATUS FOR WHITE LIQUOR OXIDATION
Publication number
20230313456
Publication date
Oct 5, 2023
Messer Austria GmbH
Bernhard Thaller
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HIGH YIELD CHEMICAL PULPING AND BLEACHING PROCESS
Publication number
20230265609
Publication date
Aug 24, 2023
GPCP IP Holdings LLC
Jeffrey A. Lee
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
RECONSTITUTED TOBACCO AND PREPARATION METHOD THEREOF
Publication number
20200181844
Publication date
Jun 11, 2020
Henan Cigarette Industry Tobacco Sheet., Ltd
Chaowei WU
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR MANUFACTURING DISSOLVING PULP
Publication number
20190390404
Publication date
Dec 26, 2019
SÖDRA SKOGSÄGARNA EKONOMISK FÖRENING
Jim Parkås
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD AND COMPOSITIONS FOR OXYGEN DELIGNIFICATION OF CHEMICAL PULP
Publication number
20180030651
Publication date
Feb 1, 2018
Ecolab USA, Inc.
Prasad Y. Duggirala
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR DELIGNIFYING AND BLEACHING PULP
Publication number
20160298294
Publication date
Oct 13, 2016
EVONIK DEGUSSA GmbH
Thomas DIETZ
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING PULP HAVING LOW LIGNIN CONTENT FROM LIGNOCELLU...
Publication number
20150122429
Publication date
May 7, 2015
ANNIKKI GMBH
Alexander Dybov
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD OF MANUFACTURING PULP FOR CORRUGATED MEDIUM
Publication number
20150122431
Publication date
May 7, 2015
PACKAGING CORPORATION OF AMERICA
Ventzislav H. Kirov
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS FOR MAKING PULP
Publication number
20140305603
Publication date
Oct 16, 2014
GOLDEAST PAPER (JIANGSU) CO., LTD
PU MA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD OF MANUFACTURING PULP FOR CORRUGATED MEDIUM
Publication number
20130081769
Publication date
Apr 4, 2013
PACKAGING CORPORATION OF AMERICA
Ventzislav H. Kirov
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHODS AND SYSTEMS FOR PRETREATMENT AND PROCESSING OF BIOMASS
Publication number
20120258509
Publication date
Oct 11, 2012
THE TEXAS A&M UNIVERSITY SYSTEM
Mark Thomas Holtzapple
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
Methods and Systems for Pretreatment and Processing of Biomass
Publication number
20080121359
Publication date
May 29, 2008
THE TEXAS A&M UNIVERSITY SYSTEM
Mark Thomas Holtzapple
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
Methods and systems for pretreatment and processing of biomass
Publication number
20040171136
Publication date
Sep 2, 2004
Mark T. Holtzapple
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
Methods and systems for pretreatment and processing of biomass
Publication number
20040168960
Publication date
Sep 2, 2004
The Texas A&M University System
Mark Thomas Holtzapple
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
Cellulose production from lignocellulosic biomass
Publication number
20020148575
Publication date
Oct 17, 2002
Richard C. Wingerson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE