Han K. Park

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Prevention of erosion and alumina build-up in casting elements
- Patent number 5,151,201
- Issue date Sep 29, 1992
- Vesuvius Crucible Company
- Mark K. Fishler
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Refractory liner compositions
- Patent number 4,913,408
- Issue date Apr 3, 1990
- Vesuvius Crucible Company
- Dale B. Hoggard
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Prevention of Al.sub.2 O.sub.3 formation in pouring nozzles and the...
- Patent number 4,870,037
- Issue date Sep 26, 1989
- Vesuvius Crucible Company
- Dale B. Hoggard
- B22 - CASTING POWDER METALLURGY