Patents by Inventor Andrew John Hayes

Andrew John Hayes 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).

  • Educational device
    Patent number: 7997902
    Abstract: Apparatus for educational use, comprising a plurality of pieces and a regular array of indicia. The pieces are dimensioned and arranged, and the indicia are arrayed, to allow a plurality of the pieces to be juxtaposed adjacent to the indicia, covering a plurality of the indicia, such that each piece covers a single indicium or an integral number of indicia and each indicium covered by a piece is visible through that piece.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: August 16, 2011
    Inventor: Andrew John Hayes
  • EDUCATIONAL DEVICE
    Publication number: 20100062404
    Abstract: Apparatus for educational use, comprising a plurality of pieces and a regular array of indicia. The pieces are dimensioned and arranged, and the indicia are arrayed, to allow a plurality of the pieces to be juxtaposed adjacent to the indicia, covering a plurality of the indicia, such that each piece covers a single indicium or an integral number of indicia and each indicium covered by a piece is visible through that piece.
    Type: Application
    Filed: February 19, 2008
    Publication date: March 11, 2010
    Inventor: Andrew John Hayes