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Jorn-Bernd Pannek
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Fallingbostel, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Preparation of cellulose ether products of increased viscosity and...
Patent number
7,683,110
Issue date
Mar 23, 2010
Dow Global Technologies Inc.
Hartwig Schlesiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cellulose ether composition for the extrusion of mineral shaped bod...
Patent number
7,491,755
Issue date
Feb 17, 2009
Roland Bayer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process of preparing alkylhydroxyalkylcellulose
Patent number
7,402,668
Issue date
Jul 22, 2008
Dow Wolff Cellulosics GmbH
Wolfgang Dannhorn
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for cement extrusion that makes use of crosslinked cellulos...
Patent number
7,041,168
Issue date
May 9, 2006
Wolff Cellulosics GmbH & Co.,
Hartwig Schlesiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process of preparing delayed-dissolution cellulose ethers
Patent number
7,012,139
Issue date
Mar 14, 2006
Wolff Cellulosics GmbH & Co. KF
Hartwig Schlesiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing alkylhydroxyalkyl cellulose
Patent number
6,891,034
Issue date
May 10, 2005
Wolff Walsrode AG
Wolfgang Dannhorn
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Essentially fiber-free cellulose ether with improved water retentio...
Patent number
6,593,468
Issue date
Jul 15, 2003
Wolff Walsrode AG
Werner Lange
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Use of cellulose mixed ethers as additives for earth pressure shields
Patent number
5,808,052
Issue date
Sep 15, 1998
Wolff Walsrode AG
Klaus Szablikowski
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
Preparation of 6-carboxy-cellulose nitrates
Publication number
20070203335
Publication date
Aug 30, 2007
Wolff Cellulosics GmbH & Co. KG
Carsten Huttermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Preparation of cellulose ether products of increased viscosity and...
Publication number
20070088106
Publication date
Apr 19, 2007
Wolff Cellulosics GmbH & Co. KG
Hartwig Schlesiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Cellulose ether composition for the extrusion of mineral shaped bod...
Publication number
20050080167
Publication date
Apr 14, 2005
Roland Bayer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Additives containing cellulose derivatives having gel-like rheologi...
Publication number
20050034636
Publication date
Feb 17, 2005
Hartwig Schlesiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process of preparing delayed-dissolution cellulose ethers
Publication number
20030130500
Publication date
Jul 10, 2003
Hartwig Schlesiger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process of preparing alkylhydroxyalkylcellulose
Publication number
20030065165
Publication date
Apr 3, 2003
Wolfgang Dannhorn
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for preparing alkylhydroxyalkyl cellulose
Publication number
20020038018
Publication date
Mar 28, 2002
Wolfgang Dannhorn
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...