Patents by Inventor Elizabeth A. Renken

Elizabeth A. Renken has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7875460
    Abstract: A method for determining the available treatment dosage of stabilized chlorine dioxide in the prevention and the treatment of plaque accumulation, volatile sulfur compound production, gingivitis and periodontitis, and for differentiating the treatment dosage from other chlorine-containing compounds that may not have such beneficial effects is disclosed. When in solution as stabilized chlorine dioxide, the presence of other ions such as chlorate and chloride may not only obscure results as to the concentration of stabilized ClO2, but also reduce the predicted effectiveness. The present invention uses validated analytical methods to predict the effectiveness of stabilized ClO2 by more precisely measuring its concentration in solution. Such measurement renders precision at a level required of food-grade and pharmacy-grade chemotherapeutic agents in the oral cavity. Preferred concentrations are within the range of about 0.005 to about 2% (w/v) stabilized chlorine dioxide.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: January 25, 2011
    Assignee: Micropure, Inc.
    Inventors: James L. Ratcliff, Elizabeth A. Renken, Jessica K. Ward
  • Publication number: 20090017548
    Abstract: A method for determining the available treatment dosage of stabilized chlorine dioxide in the prevention and the treatment of plaque accumulation, volatile sulfur compound production, gingivitis and periodontitis, and for differentiating the treatment dosage from other chlorine-containing compounds that may not have such beneficial effects is disclosed. When in solution as stabilized chlorine dioxide, the presence of other ions such as chlorate and chloride may not only obscure results as to the concentration of stabilized ClO2, but also reduce the predicted effectiveness. The present invention uses validated analytical methods to predict the effectiveness of stabilized ClO2 by more precisely measuring its concentration in solution. Such measurement renders precision at a level required of food-grade and pharmacy-grade chemotherapeutic agents in the oral cavity. Preferred concentrations are within the range of about 0.005 to about 2% (w/v) stabilized chlorine dioxide.
    Type: Application
    Filed: July 9, 2007
    Publication date: January 15, 2009
    Applicant: MICROPURE, INC.
    Inventors: James L. Ratcliff, Elizabeth A. Renken, Jessica K. Ward
  • Publication number: 20090016973
    Abstract: The discovery of use of stabilized chlorine dioxide at a concentration range of about 0.5% to about 0.9% (w/v) as a composition for the prevention of oral disease through bactericidal and bacteriostatic properties within a microbial environment is disclosed. The bactericidal properties of stabilized chlorine dioxide are further expanded to include kill of an increased number of anaerobic/aerobic/facultative gram-negative and gram-positive oral bacteria occurring in mixed microbial communities. The further discovery of the bacteriostatic properties of stabilized chlorine dioxide present within a microbial environment which inhibit the re-growth rate of oral bacteria after exposure resulting in significant reduction of plaque and oral malodor production is disclosed. The stabilized chlorine dioxide may be in the form of an oral wash or rinse in solution.
    Type: Application
    Filed: July 9, 2007
    Publication date: January 15, 2009
    Applicant: MICROPURE, INC.
    Inventors: James L. Ratcliff, David R. Drake, Sally A. Cunningham, Elizabeth A. Renken, Elena J. Young