Patents Assigned to Calgon Corp.
  • Monofluorophosphate solubility inhibitor for lead in potable water sources
    Patent number: 5076941
    Abstract: Monofluorophosphate salts, especially sodium monofluorophosphate (Na.sub.2 PO.sub.3 F), when added to potable water sources in concentrations between 0.1 mg/L and 500 mg/L, significantly reduces lead (Pb) leaching into said water, producing the double benefit of reducing lead solubility and thus content in drinking water, while at the same time adding fluoride to that drinking water, with the anticaries benefit that fluoridation provides.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: December 31, 1991
    Assignee: Calgon Corp.
    Inventors: Bennett P. Boffardi, Ann M. Sherbondy