Patents by Inventor Leslie Ridley-Tree

Leslie Ridley-Tree 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).

  • Illuminated walking assistance apparatus
    Patent number: 6394116
    Abstract: An illuminated walking assistance apparatus in the form of a staff having a light pipe in the lower portion thereof which provides diffused illumination in the immediate vicinity of the apparatus and at the same time, a bright light visible for a substantial distance to alert or signal others.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: May 28, 2002
    Inventors: Ray Winn, Leslie Ridley-Tree