TREA

Charles O. Fuerst

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  • Moorpark, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotating biological aquarium filter system
    • Patent number 5,853,591
    • Issue date Dec 29, 1998
    • Aquaria, Inc.
    • Wilfred Philip Snyder
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Rotating biological aquarium filter system
    • Patent number 5,679,253
    • Issue date Oct 21, 1997
    • Aquaria, Inc.
    • Charles Otto Fuerst
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Filter cartridge with back structure defining a weir
    • Patent number 5,618,419
    • Issue date Apr 8, 1997
    • Aquaria, Inc.
    • Charles O. Fuerst
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Rotating biologic aquarium filter system
    • Patent number 5,423,978
    • Issue date Jun 13, 1995
    • Aquaria Inc.
    • Wilfred P. Snyder
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Rotating biological aquarium filter system
    • Patent number 5,419,831
    • Issue date May 30, 1995
    • Aquaria, Inc.
    • Charles O. Fuerst
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Hang on tank canister filter
    • Patent number 5,401,401
    • Issue date Mar 28, 1995
    • Aquaria Inc.
    • Roy S. Hickok
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Compact aquarium filter
    • Patent number 5,002,660
    • Issue date Mar 26, 1991
    • Aquaria, Inc.
    • Robert Sherman
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Freestanding aquarium filter
    • Patent number 4,601,821
    • Issue date Jul 22, 1986
    • Aquaria, Inc.
    • Robert M. Sherman
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Magnetically coupled aquarium filter
    • Patent number 4,093,547
    • Issue date Jun 6, 1978
    • Aquaria, Inc.
    • Robert M. Sherman
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING