Patents by Inventor David Keith McCullough

David Keith McCullough 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: 5669942
    Abstract: An abrasive paste composition. The abrasive paste is made up from an aqueous suspension of water insoluble abrasive particles of from about forty five percent (45%) to about sixty five percent (65%) by weight, from thickeners of natural or synthetic clay of from about three percent (3%) to about fifteen percent (15%) by weight, from liquid detergent of from about two percent (2%) to about twenty percent (20%) by weight, and from water of from about twenty percent (20%) to about sixty percent (60%) by weight, and optional ingredients such as dyes, humectant, and perfumes. The water based abrasive paste has abrasive particles sized to provide adequate cut without surface gouging for use in automotive painting and body repair.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: September 23, 1997
    Inventor: David Keith McCullough