TREA

John Dragasevich

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  • Willowdale, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bag filter
    • Patent number 4,957,635
    • Issue date Sep 18, 1990
    • GAF Chemicals Corporation
    • John Dragasevich
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Bag filter
    • Patent number 4,842,747
    • Issue date Jun 27, 1989
    • GAF Corporation
    • John Dragasevich
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL