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CPC
D21D1/36
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Parent Industries
D
TEXTILES PAPER
D21
Papermaking
D21D
TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
D21D1/00
Methods of beating or refining Beaters of the Hollander type
Current Industry
D21D1/36
with vertical shaft
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Patents Grants
last 30 patents
Information
Patent Grant
Method for producing nanofibrillar cellulose and nanofibrillar cell...
Patent number
11,274,396
Issue date
Mar 15, 2022
UPM-Kymmene Corporation
Markus Nuopponen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing nanofibrillar cellulose and nanofibrillar cell...
Patent number
10,697,116
Issue date
Jun 30, 2020
UPM-Kymmene Corporation
Markus Nuopponen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing nanofibrillar cellulose
Patent number
9,739,011
Issue date
Aug 22, 2017
UPM-Kymmene Corporation
Juha Tamper
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Screening apparatus for fiber suspension
Patent number
6,571,957
Issue date
Jun 3, 2003
Voith Sulzer Paper Technology North America, Inc.
Klaus Doelle
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Super microfibrillated cellulose, process for producing the same, a...
Patent number
6,214,163
Issue date
Apr 10, 2001
Tokushu Paper Mfg. Co., Ltd.
Yuji Matsuda
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus of defibrating a fibre-containing material
Patent number
6,202,946
Issue date
Mar 20, 2001
Megatrex Oy
Hannu Virtanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Super microfibrillated cellulose, process for producing the same, a...
Patent number
6,183,596
Issue date
Feb 6, 2001
Tokushu Paper Mfg. Co., Ltd.
Yuji Matsuda
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Paper material refining apparatus
Patent number
5,048,765
Issue date
Sep 17, 1991
Satomi Seisakusho Co., Ltd.
Hitoshi Satomi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3411721
Patent number
3,411,721
Issue date
Nov 19, 1968
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
2838981
Patent number
2,838,981
Issue date
Jun 17, 1958
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
1886020
Patent number
1,886,020
Issue date
Nov 1, 1932
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING NANOFIBRILLAR CELLULOSE AND NANOFIBRILLAR CELL...
Publication number
20200270810
Publication date
Aug 27, 2020
UPM-Kymmene Corporation
Markus Nuopponen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PROCESSING WOOD FIBERS
Publication number
20190078259
Publication date
Mar 14, 2019
International Paper Company
Dwight Edward Anderson
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
A METHOD FOR PRODUCING NANOFIBRILLAR CELLULOSE
Publication number
20140284407
Publication date
Sep 25, 2014
Juha Tamper
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
Method for the treatment of fiber material
Publication number
20070006984
Publication date
Jan 11, 2007
SAPPI PAPIER HOLDING AG
Wolfgang Berger
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE