TREA

Int'l Environmental Systems, Inc.

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  • Pittsfield, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Water treatment apparatus
    • Patent number 5,084,165
    • Issue date Jan 28, 1992
    • Int'l Environmental Systems, Inc.
    • Lawrence K. Wang
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Liquid treatment apparatus
    • Patent number 5,069,783
    • Issue date Dec 3, 1991
    • Int'l Environmental Systems, Inc.
    • Lawrence K. Wang
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Sludge treatment apparatus
    • Patent number 5,068,031
    • Issue date Nov 26, 1991
    • Int'l Environmental Systems, Inc.
    • Lawrence K. Wang
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Water filtration apparatus
    • Patent number 5,064,531
    • Issue date Nov 12, 1991
    • Int'l Environmental Systems, Inc.
    • Lawrence K. Wang
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

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