Patents by Inventor Robert John Grabenstetter

Robert John Grabenstetter 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).

  • Processes and compositions for remineralization of dental enamel
    Patent number: 4083955
    Abstract: Two compositions containing respectively a cation and an anion, such as calcium ion and phosphate ion, are sequentially applied to dental enamel resulting in remineralization of subsurface dental enamel.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: April 11, 1978
    Assignee: The Procter & Gamble Company
    Inventors: Robert John Grabenstetter, John Augustus Gray, III