TREA

Robert C. Buttner

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  • Syracuse, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Reinforcing system for concrete pipe
    • Patent number 4,494,576
    • Issue date Jan 22, 1985
    • Concrete Pipe & Products Corp.
    • Robert C. Buttner
    • E04 - BUILDING
  • Information Patent Grant

    Flexible pipe gasket
    • Patent number 4,429,886
    • Issue date Feb 7, 1984
    • Concrete Pipe & Products Corp.
    • Robert C. Buttner
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Flexible seal
    • Patent number 4,426,095
    • Issue date Jan 17, 1984
    • Concrete Pipe & Products Corp.
    • Robert C. Buttner
    • E03 - WATER SUPPLY SEWERAGE