TREA

Peter Sheffield

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  • Toronto, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Auditorium
    • Patent number 5,577,350
    • Issue date Nov 26, 1996
    • Musicdome Ventures, Inc.
    • Brian Brisbin
    • E04 - BUILDING
  • Information Patent Grant

    Retractable roof for stadium structure
    • Patent number 5,070,659
    • Issue date Dec 10, 1991
    • Stadium Consultants International, Inc.
    • Brian Brisbin
    • E04 - BUILDING
  • Information Patent Grant

    Retractable roof for stadium structure
    • Patent number 4,995,203
    • Issue date Feb 26, 1991
    • Stadium Consultants International Inc.
    • Brian Brisbin
    • E04 - BUILDING