TREA

Roy L. Edgar

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  • Springboro, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Concrete sandwich panel erection anchor
    • Patent number 5,857,296
    • Issue date Jan 12, 1999
    • Dayton Superior Corporation
    • David Andrew Niday
    • E04 - BUILDING
  • Information Patent Grant

    Concrete form snap tie
    • Patent number 5,050,365
    • Issue date Sep 24, 1991
    • Dayton Superior Corporation
    • Roy L. Edgar
    • E04 - BUILDING
  • Information Patent Grant

    Adjustable hanger
    • Patent number 4,846,433
    • Issue date Jul 11, 1989
    • Dayton Superior Corporation
    • Peter D. Courtois
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Apparatus for casting an anchor in a concrete unit
    • Patent number 4,726,562
    • Issue date Feb 23, 1988
    • Dayton Superior Corporation
    • Peter D. Courtois
    • B28 - WORKING CEMENT, CLAY, OR STONE