Patents Represented by Attorney Raymond F. Keller, Esq.

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  • Method and system for the controlled release of chlorine dioxide gas
    Patent number: 7220367
    Abstract: Method, composition and system for generating chlorine dioxide gas in a controlled release manner by combining at least one metal chlorite and a dry solid hydrophilic material that reacts with the metal chlorite in the presence of water vapor, but does not react with the metal chlorite in the substantial absence of liquid water or water vapor to produce chlorine dioxide gas in a sustained amount of from about 0.001 to 1,000 ppm.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: May 22, 2007
    Assignee: BASF Catalysts LLC
    Inventors: Barry K. Speronello, Appadurai Thangaraj, Xiaolin Yang