Patents by Inventor Billy I. Thornton

Billy I. Thornton 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: 5615638
    Abstract: An improved cat litter collection device comprising a base unit having an open top, whereby the base unit sits upon a flat horizontal surface. A litter pan fits into the open top of the base unit. A cat can stand upon the base unit and deposit urine and feces directly into the litter pan without having to step into the litter pan. This prevents the cat from tracking unwanted litter and feces residue to other areas that are remote from the base unit.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: April 1, 1997
    Inventor: Billy I. Thornton