TREA

David R. Walker

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  • Kilmarnock, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Novel water softening process using membranes
    • Patent number 4,824,574
    • Issue date Apr 25, 1989
    • The Dow Chemical Company
    • John E. Cadotte
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Novel water softening membranes
    • Patent number 4,812,270
    • Issue date Mar 14, 1989
    • Filmtec Corporation
    • John E. Cadotte
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Polyamide membranes useful for water softening
    • Patent number 4,765,897
    • Issue date Aug 23, 1988
    • The Dow Chemical Company
    • John E. Cadotte
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL