TREA

Graham C. Stevens

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  • Quincy, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Charge stabilized electret filter media
    • Patent number 6,780,226
    • Issue date Aug 24, 2004
    • Hollingsowrth & Vose Company
    • Norman Lifshutz
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Charge stabilized electret filter media
    • Patent number 5,645,627
    • Issue date Jul 8, 1997
    • Hollingsworth & Vose Company
    • Norman Lifshutz
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS