William R. Arthur

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Extrusion quenching apparatus and related method
- Patent number 5,447,583
- Issue date Sep 5, 1995
- Aluminum Company of America
- William R. Arthur
- C21 - METALLURGY OF IRON
Information Patent Grant
Extrusion quenching apparatus and related method
- Patent number 5,284,327
- Issue date Feb 8, 1994
- Aluminum Company of America
- William R. Arthur
- C21 - METALLURGY OF IRON
Information Patent Grant
Stretch shaping method and apparatus
- Patent number 4,970,886
- Issue date Nov 20, 1990
- Aluminum Company of America
- Joseph R. Sikora
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...