Patents by Inventor Lloyd D. Patterson

Lloyd D. Patterson 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).

  • Dental hygiene composition for reducing periodontal disease
    Patent number: 4915936
    Abstract: Gingivitis and related periodontal problems of the gingival tissues may be treated with a dental hygiene composition comprising an effective amount of a calcium sulfate compound such as calcium sulfate hemihydrate. Preferred compositions comprise mouthwashes and oral rinses containing about 5-90% by weight of calcium sulfate hemihydrate, a liquid carrier such as water, a humectant and an alcohol.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: April 10, 1990
    Assignee: United States Gypsum Company
    Inventors: Lloyd D. Patterson, Jay W. Palmer