Patents by Inventor John Eric Ligon

John Eric Ligon 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: 7484960
    Abstract: The present invention provides a print lay-out of conventional textual characters and corresponding Braille characters that facilitates concurrent reading of the textual and the Braille characters, respectively, by a sighted person and a visually impaired, or blind, individual. More particularly, the textual and Braille characters can be presented in a pattern such that each textual character is associated with its corresponding Braille character in a one-to-one relationship. In some embodiment, the print lay-out is applied to one or more concordant pages of a book suitable for simultaneous use by a sighted person and a visually impaired individual.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: February 3, 2009
    Assignee: BrailleInk
    Inventor: John Eric Ligon