Patents by Inventor David L. Sharpe

David L. Sharpe 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: 7513519
    Abstract: An adjustable footwear cleaning apparatus includes a rectangular base, a plurality of spikes protruding from a surface of the base, a carpet that is sized to fit on the base and is perforated to allow the free ends of the spikes to protrude when the carpet is installed, and a mechanism for attaching the apparatus to a running board. The mechanism may include a plurality of straps or horizontally or vertically adjustable clamps adapted to adjustably secure the base to a vehicle step or running board.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: April 7, 2009
    Inventor: David L. Sharpe
  • Publication number: 20080092318
    Abstract: An adjustable footwear cleaning apparatus includes a rectangular base, a plurality of spikes protruding from a surface of the base, a carpet that is sized to fit on the base and is perforated to allow the free ends of the spikes to protrude when the carpet is installed, and a mechanism for attaching the apparatus to a running board. The mechanism may include a plurality of straps or horizontally or vertically adjustable clamps adapted to adjustably secure the base to a vehicle step or running board.
    Type: Application
    Filed: October 23, 2006
    Publication date: April 24, 2008
    Inventor: David L. Sharpe