TREA

Alfonso V. Alvarez

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  • San Bernidino, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Roof tile
    • Patent number D452920
    • Issue date Jan 8, 2002
    • Boral Lifetile, Inc.
    • Alfonso V. Alvarez
    • D25 - Building units and construction elements
  • Information Patent Grant

    Roof tile design and construction
    • Patent number 6,247,284
    • Issue date Jun 19, 2001
    • Boral Lifetile, Inc.
    • Alfonso V. Alvarez
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Roof tile design and construction
    • Patent number 5,974,756
    • Issue date Nov 2, 1999
    • Boral Industries, Inc.
    • Alfonso V. Alvarez
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Roof tile
    • Patent number D411316
    • Issue date Jun 22, 1999
    • Boral Lifetile, Inc.
    • Alfonso V. Alvarez
    • D25 - Building units and construction elements
  • Information Patent Grant

    Composition useful for lightweight roof tiles and method of produci...
    • Patent number 5,603,758
    • Issue date Feb 18, 1997
    • Boral Concrete Products, Inc.
    • Walter A. Schreifels
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES