Patents by Inventor William Grant

William Grant 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).

  • Toothpaste
    Patent number: 3935305
    Abstract: Toothpaste containing calcium carbonate as the principal abrasive and a lesser amount of sodium bicarbonate as an additional abrasive. The principal abrasive of the toothpaste may also be comprised of a mixture of abrasives such as chalk, silica, alumina, zirconium silicate or sodium aluminosilicate in combination with the minor amount of sodium bicarbonate. The latter may be included in amounts up to about 25%, while the former may be included in amounts up to about 60%.
    Type: Grant
    Filed: May 30, 1974
    Date of Patent: January 27, 1976
    Assignee: Colgate-Palmolive Company
    Inventors: Thomas James Delaney, William Grant Pierson