TREA

Robert W. Langerak

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  • Brantford, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Aerated immersed membrane system
    • Patent number 6,656,356
    • Issue date Dec 2, 2003
    • Zenon Environmental Inc.
    • Christian Gungerich
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Gel potting method and method to reduce twinning for filtering holl...
    • Patent number 6,592,759
    • Issue date Jul 15, 2003
    • Zenon Environmental Inc.
    • Hamid Rabie
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • 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

Patents Applicationslast 30 patents