Gunter Pietzko

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Essen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Hot-rolling process and hot-rolling mill for metal strip
- Patent number 5,694,799
- Issue date Dec 9, 1997
- SMS Schloemann-Siemag Aktiengesellschaft
- Waldemar Wolpert
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process for the casting of metals in a continuous casting installat...
- Patent number 5,482,106
- Issue date Jan 9, 1996
- Thyssen Stahl AG
- Erich Hoffken
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method for the production of a steel strip by the casting of a stra...
- Patent number 5,479,982
- Issue date Jan 2, 1996
- Thyssen Stahl Aktiengesellschaft
- Erich Hoffken
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Installation for the production of a steel strip
- Patent number 5,058,656
- Issue date Oct 22, 1991
- Thyssen Stahl AG
- Erich Hoffken
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process for the production of a steel strip
- Patent number 4,951,734
- Issue date Aug 28, 1990
- Thyssen Stahl AG
- Erich Hoffken
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...