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Thomas J. Marcum

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  • Englewood, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Subterranean air lift diffuser assembly
    • Patent number 5,480,593
    • Issue date Jan 2, 1996
    • Wilfley Weber, Inc.
    • Thomas J. Marcum
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Air lift diffuser
    • Patent number 4,917,832
    • Issue date Apr 17, 1990
    • Wilfley Weber, Inc.
    • Thomas J. Marcum
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL