TREA

Leonard R. Levy

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  • Framingham, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Immersion tin composition and process for using
    • Patent number 4,511,403
    • Issue date Apr 16, 1985
    • Shipley Company Inc.
    • Alfred P. Orio
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Etchant and process
    • Patent number 4,144,119
    • Issue date Mar 13, 1979
    • Oleh B. Dutkewych
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Etchant and process of etching with the same
    • Patent number 4,130,454
    • Issue date Dec 19, 1978
    • Oleh B. Dutkewych
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...