Patents by Inventor Dennis E. Groat

Dennis E. Groat 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 of forming stable dental gel of stannous fluoride
    Patent number: 4533544
    Abstract: A method of producing stable gels consisting essentially of from about 0.38% to about 0.42% of stannous fluoride, from about 0.25% to about 0.45% hydroxyethylallulose and the remainder anhydrous glycerin.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: August 6, 1985
    Assignee: Scherer Laboratories, Inc.
    Inventors: Dennis E. Groat, Richard W. Sell, Richard J. Kalish, Horace E. Melton
  • Method of forming stable dental gel of stannous fluoride
    Patent number: 4418057
    Abstract: A method for producing a stable commercial-scale size batch of a stannous fluoride containing gel comprising admixing predetermined, critical proportions of the ingredients of the gel at critical temperatures in stages designed to stabilize the gel against deterioration in storage.
    Type: Grant
    Filed: February 9, 1983
    Date of Patent: November 29, 1983
    Assignee: Scherer Laboratories, Inc.
    Inventors: Dennis E. Groat, Richard W. Sell, Richard J. Kalish, Horace E. Melton