Berndt-Ullrich Kohler

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Krefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for processing iron-laden spent sulfuric acid
- Patent number 7,537,749
- Issue date May 26, 2009
- Tronox Pigments GmbH
- Gerhard Auer
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Cobalt-containing iron oxide pigments, process for producing the sa...
- Patent number 6,080,233
- Issue date Jun 27, 2000
- Toda Kogyo Corporation
- Berndt-Ullrich Kohler
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the thermal treatment of iron oxides in a circulating f...
- Patent number 5,837,051
- Issue date Nov 17, 1998
- Bayer AG
- Jorg Krekel
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of preparing goethite
- Patent number 5,338,355
- Issue date Aug 16, 1994
- Bayer AG
- Berndt-Ullrich Kohler
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
Method for processing iron-laden spent sulfuric acid
- Publication number 20070122336
- Publication date May 31, 2007
- Tronax Pigments GMbH
- Gerhard Auer
- C01 - INORGANIC CHEMISTRY