Patents by Inventor Perry A. Ratcliffe

Perry A. Ratcliffe 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).

  • Method and composition for prevention and treatment of oral disease
    Patent number: 4808389
    Abstract: The use of stabilized chlorine dioxide as a composition for the treatment and prevention of oral disease and the reduction of oral malodor is disclosed. Chlorine dioxide is an effective anti-plaque agent, anti-gingivitis and anti-periodontitis agent, and also effective to destroy malodorous sulfur compounds. Preferred concentrations are in the range of 0.005% to 2% and the chlorine dioxide may be in the form of a wash or rinse in solution, a soak or as a toothpaste.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: February 28, 1989
    Inventor: Perry A. Ratcliffe