TREA

Paul B. Koehler

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  • Burlington, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tubular membrane module
    • Patent number 5,227,063
    • Issue date Jul 13, 1993
    • Zenon Environmental Inc.
    • Robert W. Langerak
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Tubular membrane module
    • Patent number 5,100,549
    • Issue date Mar 31, 1992
    • Zenon Environmental Inc.
    • Robert W. Langerak
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Tubular membrane module with fluid shear protection
    • Patent number 4,897,191
    • Issue date Jan 30, 1990
    • Zenon Environmental Inc.
    • Robert W. Langerak
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL