Wolfgang Oehlert

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Krefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Heat-stable zinc ferrite colour pigments, process for preparing the...
- Patent number 7,294,192
- Issue date Nov 13, 2007
- LANXESS Deutschland GmbH
- Carsten Rosenhahn
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Use of synthetic, iron raw materials for preparing iron oxide pigments
- Patent number 6,086,846
- Issue date Jul 11, 2000
- Bayer AG
- Wilfried Burow
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Use of synthetic, iron raw materials for preparing iron oxide pigments
- Patent number 5,837,216
- Issue date Nov 17, 1998
- Bayer AG
- Wilfried Burow
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Use of synthetic, bainite-rich iron raw materials for preparing iro...
- Patent number 5,730,794
- Issue date Mar 24, 1998
- Bayer AG
- Wilfried Burow
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Thermally stable iron oxide pigments, a process for their preparati...
- Patent number 5,667,579
- Issue date Sep 16, 1997
- Bayer AG
- Wolfgang Oehlert
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Clean color shade, yellow-tinged red iron oxide pigments, and a pro...
- Patent number 5,665,157
- Issue date Sep 9, 1997
- Bayer AG
- Wolfgang Oehlert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
Heat-stable zinc ferrite colour pigments, process for preparing the...
- Publication number 20050087106
- Publication date Apr 28, 2005
- Bayer Chemicals AG
- Carsten Rosenhahn
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES