Patents by Inventor James Sumpter

James Sumpter 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).

  • Dentifrice with a dye absorbing silica for imparting a speckled appearance thereto
    Patent number: 6074629
    Abstract: A dentifrice containing a dye absorbing silica which imparts a speckled appearance in toothpaste or gel formulations. The dye absorbing silica comprises silica granules which have a linseed oil absorption of at least about 150 cc/100 g, an average particle size of about 400 .mu.m to about 600 .mu.m, an attrition value of less than 30%, and a pH of about 6 to about 8.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: June 13, 2000
    Assignee: J. M. Huber Corporation
    Inventors: John Kostinko, James Sumpter, Kathleen S. Pike