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Rolf Engelhard

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  • Prescott, AZ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Venturi bypass system and associated methods
    • Patent number 9,931,601
    • Issue date Apr 3, 2018
    • Hayward Industries, Inc.
    • Rolf Engelhard
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    High intensity air purifier
    • Patent number 9,855,362
    • Issue date Jan 2, 2018
    • Rolf Engelhard
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Photo-catalyzing fluid mobilizing system and method
    • Patent number 9,408,937
    • Issue date Aug 9, 2016
    • Rolf Engelhard
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    High intensity air purifier
    • Patent number 9,402,931
    • Issue date Aug 2, 2016
    • Rolf Engelhard
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Photo-catalyzing fluid mobilizing system and method
    • Patent number 9,162,903
    • Issue date Oct 20, 2015
    • Blutec, LLC
    • Rolf Engelhard
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Air purifier
    • Patent number D714923
    • Issue date Oct 7, 2014
    • Blue Wave International Corporation
    • Rolf Engelhard
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    High intensity air purifier
    • Patent number 8,734,724
    • Issue date May 27, 2014
    • Blutec, LLC
    • Rolf Engelhard
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    High intensity air purifier
    • Patent number 8,277,735
    • Issue date Oct 2, 2012
    • Blutec, LLC
    • Rolf Engelhard
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Toilet tank mounted odor eliminator
    • Patent number 8,161,579
    • Issue date Apr 24, 2012
    • Zuvo Water, LLC
    • Raymond P. Denkewicz, Jr.
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Apparatus and method for purifying water in a storage tank
    • Patent number 8,066,941
    • Issue date Nov 29, 2011
    • Zuvo Water, LLC
    • Raymond P. Denkewicz, Jr.
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Apparatus and method for removing arsenic and inorganic composition...
    • Patent number 8,066,940
    • Issue date Nov 29, 2011
    • Zuvo Water, LLC
    • Raymond P. Denkewicz, Jr.
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    High intensity air purifier
    • Patent number 8,017,073
    • Issue date Sep 13, 2011
    • Life Spring Limited Partnership
    • Rolf Engelhard
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Apparatus and method for treating water with ozone
    • Patent number 7,794,608
    • Issue date Sep 14, 2010
    • Zuvo Water, LLC
    • Raymond P. Denkewicz, Jr.
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    UV lamp supported filter cartridge
    • Patent number 7,033,502
    • Issue date Apr 25, 2006
    • RCT Technologies LLC
    • Rolf Engelhard
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Filter cartridge support
    • Patent number 6,830,686
    • Issue date Dec 14, 2004
    • RCT Technologies, LLC
    • Rolf Engelhard
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    User-activated ultra-violet water treatment unit
    • Patent number 6,461,520
    • Issue date Oct 8, 2002
    • Life Spring Limited Partnership
    • Rolf Engelhard
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Catalytic dental water apparatus
    • Patent number 6,267,895
    • Issue date Jul 31, 2001
    • Germiphene Corporation
    • Rolf Engelhard
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Dental unit water purifier
    • Patent number 5,942,125
    • Issue date Aug 24, 1999
    • Germiphene Corporation
    • Rolf Engelhard
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Super ozonating water purifier
    • Patent number 5,709,799
    • Issue date Jan 20, 1998
    • Vortex Corporation
    • Rolf Engelhard
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Filter retainer for water purification unit
    • Patent number 5,540,848
    • Issue date Jul 30, 1996
    • Vortex Corporation
    • Rolf Engelhard
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Water purification unit
    • Patent number D357058
    • Issue date Apr 4, 1995
    • Vortex Corporation
    • Rolf Engelhard
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Water purification unit
    • Patent number 5,266,215
    • Issue date Nov 30, 1993
    • Rolf Engelhard
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents