Hartmut Hlawatschek

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Mainz, DE

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Patents Grantslast 30 patents

Information Patent Grant
Furnace hearth
- Patent number 4,829,538
- Issue date May 9, 1989
- Didier-Werke AG
- Hartmut Hlawatschek
- C21 - METALLURGY OF IRON
Information Patent Grant
Refractory composition and refractory unfired shapes produced there...
- Patent number 4,760,039
- Issue date Jul 26, 1988
- Didier-Werke AG
- Hartmut Hlawatschek
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Electrode for an electric arc furnace
- Patent number 4,648,097
- Issue date Mar 3, 1987
- Didier-Werke AG
- Hartmut Hlawatschek
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR