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Ralf Rausch
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Kreuzau, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Precipitated silicas
Patent number
7,071,257
Issue date
Jul 4, 2006
Degussa AG
Heinz Esch
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Precipitated silicas
Patent number
6,977,065
Issue date
Dec 20, 2005
Degussa AG
Heinz Esch
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Precipitated silicas which contain an active substance
Patent number
6,214,383
Issue date
Apr 10, 2001
Degussa-Huls AG
Heinz Esch
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Precipitated silicas
Patent number
5,925,708
Issue date
Jul 20, 1999
Degussa Aktiengesellschaft
Heinz Esch
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Precipitated silica
Patent number
5,871,867
Issue date
Feb 16, 1999
Degussa Aktiengesellschaft
Ralf Rausch
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Precipitated silicas
Patent number
5,846,506
Issue date
Dec 8, 1998
Degussa Aktiengesellschaft
Heinz Esch
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of precipitated silica
Patent number
5,484,581
Issue date
Jan 16, 1996
Degussa Aktiengesellschaft
Heinz Esch
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
Information
Patent Application
Precipitated Silica
Publication number
20070208127
Publication date
Sep 6, 2007
Heinz Esch
B60 - VEHICLES IN GENERAL
Information
Patent Application
Precipitated silica
Publication number
20050282951
Publication date
Dec 22, 2005
DEGUSSA AG
Heinz Esch
B60 - VEHICLES IN GENERAL
Information
Patent Application
Precipitated silicas
Publication number
20020169248
Publication date
Nov 14, 2002
Heinz Esch
C01 - INORGANIC CHEMISTRY