TREA

Alfred B. Malmquist

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  • Rancho Rio, NM, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thick shingle
    • Patent number 5,305,569
    • Issue date Apr 26, 1994
    • Elk Corporation of Dallas
    • Alfred B. Malmquist
    • E04 - BUILDING
  • Information Patent Grant

    Method of making a thick shingle
    • Patent number 5,232,530
    • Issue date Aug 3, 1993
    • Elk Corporation of Dallas
    • Alfred B. Malmquist
    • E04 - BUILDING
  • Information Patent Grant

    Stick-down system for roofing
    • Patent number 4,559,267
    • Issue date Dec 17, 1985
    • Elk Corporation
    • John G. Freshwater
    • E04 - BUILDING