Rainer Prange

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Hagen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of thermal treatment of mineral raw material
- Patent number 5,458,833
- Issue date Oct 17, 1995
- Dolomitwerke GmbH
- Thomas Hammer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Refractory composition for refractory linings of metallurgical vessels
- Patent number 4,877,761
- Issue date Oct 31, 1989
- Dolomitwerke GmbH
- Max Chmiel
- C21 - METALLURGY OF IRON
Information Patent Grant
Basic fire resistant material and shaped bodies therefrom
- Patent number 4,549,906
- Issue date Oct 29, 1985
- Dolomitwerke GmbH
- Bernd Wyskott
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES