TREA

Anthony K. Butkus

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  • Worcester, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Chrome oxide refractory composition
    • Patent number 5,021,375
    • Issue date Jun 4, 1991
    • Norton Company
    • Anthony K. Butkus
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Chromia-magnesia refractory body
    • Patent number 5,010,046
    • Issue date Apr 23, 1991
    • Norton Company
    • Anthony K. Butkus
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    High temperature filter
    • Patent number 4,946,487
    • Issue date Aug 7, 1990
    • Norton Company
    • Anthony K. Butkus
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Furnance having dense refractory oxide liner
    • Patent number 4,823,359
    • Issue date Apr 18, 1989
    • Norton Company
    • Neil N. Ault
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES