Franz Krennbauer

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Patents Grantslast 30 patents

Information Patent Grant
Process and apparatus for thermally treating fine-grained solids, p...
- Patent number 4,685,970
- Issue date Aug 11, 1987
- Voest-Alpine Aktiengesellschaft
- Franz Krennbauer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process and apparatus for producing cement
- Patent number 4,431,454
- Issue date Feb 14, 1984
- Voest-Alpine Aktiengesellschaft
- Franz Krennbauer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process and apparatus for producing hydraulic cement
- Patent number 4,431,453
- Issue date Feb 14, 1984
- Voest-Alpine Aktiengesellschaft
- Fritz Feige
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process of producing cement and plant for carrying out the process
- Patent number 4,405,374
- Issue date Sep 20, 1983
- Voest-Alpine Aktiengesellschaft
- Franz Krennbauer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES