Ludwig Kwech

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Patents Grantslast 30 patents

Information Patent Grant
Process of making cement clinker and apparatus for performing said...
- Patent number 4,913,742
- Issue date Apr 3, 1990
- Voest-Alpine Aktiengesellschaft
- Ludwig Kwech
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for the utilization of waste substances and device for carr...
- Patent number 4,179,263
- Issue date Dec 18, 1979
- Perlmooser Zementwerke Aktiengesellschaft
- Fritz Jung
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Process for the production of a mixture to be utilized in the produ...
- Patent number 4,102,700
- Issue date Jul 25, 1978
- Perlmooser Zementwerke Aktiengesellschaft
- Ludwig Kwech
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES