Patents by Inventor Roger E. Stier

Roger E. Stier 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: 4601898
    Abstract: An anti-caries aqueous solution, which comprises an aqueous solution containing an anti-caries effective amount of TiF.sub.4 and a chelating agent in an amount effective to stablilize the TiF.sub.4, said solution having a pH of at least about 3.5.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: July 22, 1986
    Assignee: Beecham Inc.
    Inventors: Roger E. Stier, William H. Dunn, James D. Vidra
  • Patent number: 4568534
    Abstract: A dentifrice containing an anticaries agent and an abrasive is produced to which has been added at least one color indicator which, when the user brushes his or her teeth with the dentifrice, results in a color change in the dentifrice within the user's mouth after a predetermined period of brushing time has elapsed for the purpose of indicating to the user that he or she has brushed his or her teeth a sufficient length of time.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: February 4, 1986
    Assignee: Beecham Inc.
    Inventors: Roger E. Stier, James D. Vidra, Bernard Misek