Patents Represented by Law Firm Lydig, Voit & Mayer
  • Method and composition for water treatment
    Patent number: 5071569
    Abstract: A method is disclosed for decolorizing a water body particularly for clarifying the water and removing algae stains in a swimming pool, by establishing in the water body EDTA compound and ammonium ions by the addition of appropriate compounds, and a composition for decolorizing such a water body containing EDTA compound and ammonium salt.
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: December 10, 1991
    Assignee: Coral International, Inc.
    Inventors: Paul R. Caulfield, James R. Schueneman