Patents by Inventor Herbert C. Smitherman

Herbert C. Smitherman 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).

  • Combined anticalculus and antiplaque compositions
    Patent number: 5015467
    Abstract: Tartrate monosuccinate and tartrate disuccinate compounds of the formulae HO(CHCOOX)CH(COOX)OCH(COOX)CH.sub.2 COOX and CH.sub.2 (COOX)CH(COOX)O(CH[COOX]).sub.2 OCH(COOX)CH.sub.2 COOX are used in combination with various polymers to provide anticalculus and antiplaque effects on teeth. Oral care compositions such as dentifrices, mouthwashes, and the like, are provided. Use of the tartate-succinates and polymers in combination with other oral car ingredients such as fluoride, pyrophosphate and antibacterials is also described.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: May 14, 1991
    Assignee: The Procter & Gamble Company
    Inventor: Herbert C. Smitherman