Patents by Inventor Linda Silvey

Linda Silvey 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).

  • Three-dimensional geometric puzzle
    Patent number: 6145837
    Abstract: The present invention provides a three-dimensional geometric puzzle having a cube element, five triangular prism elements and a parallelepiped element. Each one or all of the elements of the puzzle are capable of being oriented such that they have a thickness equal to the length of an edge of the face of the cube element. The elements can also be juxtaposed in a predetermined fashion to form various geometric solids, such as a parallelepiped having a square face and a height equal to the length of a side of an edge of the cube element.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: November 14, 2000
    Assignee: A. Daigger and Company, Inc.
    Inventor: Linda Silvey
  • Three-dimensional geometric puzzle
    Patent number: D413361
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: August 31, 1999
    Assignee: Cuisenaire Company of America, Inc.
    Inventor: Linda Silvey