TREA

Douglas B. Spear

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  • Clarkston, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Modular wall system
    • Patent number 11,060,282
    • Issue date Jul 13, 2021
    • Doug Spear
    • E04 - BUILDING
  • Information Patent Grant

    Wall panel system
    • Patent number 9,366,030
    • Issue date Jun 14, 2016
    • Douglas B. Spear
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Wall panel system
    • Patent number 8,997,436
    • Issue date Apr 7, 2015
    • Douglas B. Spear
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents