Patents by Inventor Denise Dorsey-Zinn

Denise Dorsey-Zinn 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).

  • Puzzle including pieces formed from a crayon material
    Patent number: 4811951
    Abstract: A puzzle having two sets of puzzle pieces with enhanced play value. The puzzle includes a frame having a recessed portion formed therein adapted to releaseably, interchangeably hold the two sets of puzzle pieces. The first set of puzzle pieces are formed from a crayon material and are adapted to be selectively arranged in a predetermined pattern in the recessed portion to complete the puzzle. The second set of puzzle pieces are adapted to be selectively arranged in the predetermined pattern in the recessed portion after the first plurality of puzzle pieces are removed to complete the puzzle. As the crayons forming the first set of puzzle pieces are used to color and decrease in size, the second set of puzzle pieces can be used to complete the puzzle.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: March 14, 1989
    Assignee: Random House, Inc.
    Inventors: Denise Dorsey-Zinn, Sue M. Meiser, Michael F. Cassidy