Patents Assigned to Watervisions International, Inc.
  • Microbiological water filter
    Patent number: 6957743
    Abstract: A method and device for the filtration and/or purification of fluids water or other solutions containing microbiological contaminants, such as fluids containing including bacteria and/or viruses, where the fluid water is passed through a purification material composed of apatite and absorption media in a fixed binder matrix.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: October 25, 2005
    Assignee: Watervisions International, Inc.
    Inventors: Arthur W. Johnston, Arthur F. Johnston, Frank A. Williams, Kenneth D. Hughes
  • Ion-exchange based fluid treatment systems
    Patent number: 6878285
    Abstract: A process for removing soluble and insoluble inorganic, organic, and microbiological contaminants from a fluid stream employing a pretreatment module, a post-treatment module, a recharge stream module or any combination thereof, and an ion exchange module, is provided. The process provided reduces the problems associated with ion exchange material fouling and increases contaminant removal capacity.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: April 12, 2005
    Assignee: Watervisions International, Inc.
    Inventor: Kenneth D. Hughes
  • Reactive compositions for fluid treatment
    Patent number: 6861002
    Abstract: A method and device for the chemical conversion, filtration and/or purification of fluids water or other solutions containing microbiological and chemical contaminants, such as fluids containing arsenic, chlorine, bacteria, viruses, and cysts, where the fluid is passed through a purification material composed of fluid treatment carbon, metal phosphates, metal oxides, reduced metals, metal silicates, metal sulfates, metal carbonates, metal hydroxides, or combinations thereof. The material may be included in a fixed binder matrix.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: March 1, 2005
    Assignee: WaterVisions International, Inc.
    Inventor: Kenneth D. Hughes
  • Process for preparing reactive compositions for fluid treatment
    Patent number: 6833075
    Abstract: A method and device for filtration and/or purification of fluids water or other solutions containing microbiological and chemical contaminants, such as fluids containing metals, water treatment chemicals, reactive chemicals and microorganisms, where the fluid is passed through a composite material composed of fluid treatment media with or without a binder matrix in which the filtration media, binder, or support structures, or a combination thereof contains a surface treatment.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: December 21, 2004
    Assignee: Watervisions International, Inc.
    Inventor: Kenneth D. Hughes
  • Microbiological water filter
    Patent number: 6187192
    Abstract: A method and device for the filtration and/or purification of fluids water or other solutions containing microbiological contaminants, such as fluids containing including bacteria and/or viruses, where the fluid water is passed through a purification material composed of apatite and absorption media in a fixed binder matrix.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: February 13, 2001
    Assignee: WaterVisions International, Inc.
    Inventors: Arthur W. Johnston, Arthur F. Johnston, Frank A. Williams, Kenneth D. Hughes
  • Microbiological water filtering
    Patent number: 6180016
    Abstract: A method and device for the filtration and/or purification of fluids water or other solutions containing microbiological contaminants, such as fluids containing including bacteria and/or viruses, where the fluid water is passed through a purification material composed of apatite and absorption media in a fixed binder matrix.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: January 30, 2001
    Assignee: Watervisions International, Inc.
    Inventors: Arthur W. Johnston, Arthur F. Johnston, Frank A. Williams, Kenneth D. Hughes