Helmut Lischka

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Trostberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Cored wire with a content of passivated pyrophoric metal, and the u...
- Patent number 5,264,023
- Issue date Nov 23, 1993
- SKW Trostberg Aktiengesellschaft
- Detlef Missol
- C21 - METALLURGY OF IRON
Information Patent Grant
Passivation of pyrophoric metals
- Patent number 5,089,049
- Issue date Feb 18, 1992
- SKW Trostbert Aktiengesellschaft
- Helmut Lischka
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Agent for desulphurizing iron melts, a process for the production t...
- Patent number 4,943,317
- Issue date Jul 24, 1990
- SKW Trostberg Aktiengesellschaft
- Helmut Lischka
- C21 - METALLURGY OF IRON