Heinrich Niehues

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Mulheim/Ruhr, DE

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Patents Grantslast 30 patents

Information Patent Grant
Snorkel for a degassing vessel
- Patent number 5,911,946
- Issue date Jun 15, 1999
- Veitsch-Radex Aktiengesellschaft fur feuerfeste Erzeugnisse
- Klaus Aichinger
- C21 - METALLURGY OF IRON
Information Patent Grant
Gas purging device in the blowpipe of a degassing vessel
- Patent number 5,853,658
- Issue date Dec 29, 1998
- Veitsch-Radex Aktiengesellschaft fur feuerfeste Erzeugnisse
- Klaus Aichinger
- B22 - CASTING POWDER METALLURGY