TREA

Leonard D. Steffan

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  • Perrysburg, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of distributing molten glass gobs in an IS machine
    • Patent number 5,562,747
    • Issue date Oct 8, 1996
    • Owens-Brockway Glass Container Inc.
    • Leonard D. Steffan
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Servo controlled glass gob distributor
    • Patent number 5,405,424
    • Issue date Apr 11, 1995
    • Owens-Brockway Glass Container Inc.
    • Leonard D. Steffan
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Valve block test apparatus
    • Patent number 4,615,722
    • Issue date Oct 7, 1986
    • Owens-Illinois, Inc.
    • Leonard D. Steffan
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Apparatus for controlling a valve
    • Patent number 4,499,920
    • Issue date Feb 19, 1985
    • Owens-Illinois, Inc.
    • Leonard D. Steffan
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Shear spray apparatus
    • Patent number 4,083,278
    • Issue date Apr 11, 1978
    • Owens-Illinois, Inc.
    • Leonard D. Steffan
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING