TREA

Robert J. Sirkoch

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  • Pittsburgh, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Primer composition
    • Patent number 4,634,602
    • Issue date Jan 6, 1987
    • PPG Industries, Inc.
    • Robert J. Sirkoch
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Method of coating a metal substrate and the coated substrate
    • Patent number 3,950,592
    • Issue date Apr 13, 1976
    • PPG Industries, Inc.
    • Ernest A. Hahn
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...