TREA

William E. Silvis

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  • Austin, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Matrix for a hard composite
    • Patent number 5,733,649
    • Issue date Mar 31, 1998
    • Kennametal Inc.
    • Harold E. Kelley
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Matrix for a hard composite
    • Patent number 5,733,664
    • Issue date Mar 31, 1998
    • Kennametal Inc.
    • Harold E. Kelley
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Matrix for a hard composite
    • Patent number 5,589,268
    • Issue date Dec 31, 1996
    • Kennametal Inc.
    • Harold E. Kelley
    • B22 - CASTING POWDER METALLURGY