Patents by Inventor David W. Kerivan

David W. Kerivan 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: 5314189
    Abstract: A chess set is provided which has a plurality of playable pieces and a dimensional chess board. These pieces consist of, chess men and the pawns each having a structure comprising of channel like lines at the base and a geometric band inscribed on the front of each piece. The geometric bands identify the pieces into groups with matching bands. The channel like lines that extend around all sides of the playable pieces indicate the point value of each chess piece and pawn. The structure of the chess pieces also includes a cavity at the base with an opening that a particular pawn fits exactly inside of identifying a visual relationship between them with the chess piece becoming the parent piece of the pawn. A pawn that reaches the eighth rank becomes a replication of its parent piece with the exception of the king's pawn which can become any piece except another king. The chess pieces have geometrically shaped tops that indicate the movement potential of each piece when it is engaged in play.
    Type: Grant
    Filed: May 12, 1992
    Date of Patent: May 24, 1994
    Inventor: David W. Kerivan
  • Patent number: D326286
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: May 19, 1992
    Inventor: David W. Kerivan