Patents by Inventor Ragnar Johannsson

Ragnar Johannsson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Water filtration system and its use
    Patent number: 7527730
    Abstract: The present invention relates to a filtration system for purifying water, in particular aquaculture water. Furthermore, the invention relates to a method of purifying water wherein water is supplied to a filtration system, comprising filtration medium for filtering water and a grid for preventing water channeling within the filter wherein said grid comprises means for allowing passage of said filtration medium through the grid, and a water recirculation system for purifying contaminated water from aquaculture and recirculating purified water to the aquaculture.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: May 5, 2009
    Assignee: Holder Timmons Engineering, LLC
    Inventors: Ragnar Johannsson, James E. Timmons, John L. Holder, Michael B. Timmons
  • Water filtration system and its use
    Publication number: 20070056890
    Abstract: The present invention relates to a filtration system for purifying water, in particular aquaculture water. Furthermore, the invention relates to a method of purifying water wherein water is supplied to a filtration system, comprising filtration medium for filtering water and a grid for preventing water channeling within the filter wherein said grid comprises means for allowing passage of said filtration medium through the grid, and a water recirculation system for purifying contaminated water from aquaculture and recirculating purified water to the aquaculture.
    Type: Application
    Filed: October 4, 2004
    Publication date: March 15, 2007
    Applicant: Holder Timmons Engineering, LLC
    Inventors: Ragnar Johannsson, James Timmons, John Holder, Michael Timmons