Gerd Sonnenberg

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Walsrode, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing methylhydroxyalkylcellulose having a small nu...
- Patent number 8,197,699
- Issue date Jun 12, 2012
- Dow Global Technologies LLC
- Martin Kowollik
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing particulate, water-soluble cellulose derivati...
- Patent number 7,259,257
- Issue date Aug 21, 2007
- Wolff Walsrode AG
- Hartwig Schlesiger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process and apparatus for combined milling and drying
- Patent number 6,880,772
- Issue date Apr 19, 2005
- Wolff Walsrode AG
- Hartwig Schlesiger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process and apparatus for the industrial preparation of methylhydro...
- Patent number 6,667,395
- Issue date Dec 23, 2003
- Wolff Cellulosics GmbH & Co. KG
- Torsten Holtkötter
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing methyl hydroxyalkyl cellulose ethers
- Patent number 5,360,902
- Issue date Nov 1, 1994
- Wolff Walsrode AG
- Oke Brauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Process for preparing methylhydroxyalkylcellulose having a small nu...
- Publication number 20070210014
- Publication date Sep 13, 2007
- Wolff Cellulosics GmbH & Co. KG
- Martin Kowollik
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process and apparatus for combined milling and drying
- Publication number 20030122003
- Publication date Jul 3, 2003
- Hartwig Schlesiger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process and apparatus for the industrial preparation of methylhydro...
- Publication number 20030065166
- Publication date Apr 3, 2003
- Torsten Holtkotter
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for producing particulate, water-soluble cellulose derivati...
- Publication number 20010025101
- Publication date Sep 27, 2001
- Hartwig Schlesiger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...