Patents Assigned to Environmental Concerns, Inc.
  • Water purification material, process therefor, and device for the removal of heavy metal toxins
    Patent number: 4789475
    Abstract: A filter bed material for the removal of heavy metal ions from water and process for the manufacture thereof. The bed material includes a charcoal bed having a chelating agent adsorbed thereto utilizing a polymer to aid in the adsorption of the chelating compound.
    Type: Grant
    Filed: June 23, 1987
    Date of Patent: December 6, 1988
    Assignee: Environmental Concerns, Inc.
    Inventors: Richard A. Harte, David B. Wilson