Patents by Inventor Roger K. Lam

Roger K. Lam 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: 4575096
    Abstract: Game apparatus comprises a plurality of playing pieces each coded to indicate its attribute and value. The attribute of each piece is one of three possible attributes and the value of each piece is one of three possible values. The three attributes and values are such that one attribute and value is superior to another attribute and value while also being inferior to the third attribute and value. In the preferred embodiment, three playing pieces of different attributes and different values are stacked to comprise a playing unit. Two players successively compare the attributes and values of the bottom-most pieces of their playing units in a number of plays in order to determine the outcome of the game.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: March 11, 1986
    Inventor: Roger K. Lam
  • Patent number: 4488727
    Abstract: Game apparatus comprises a game board together with a plurality of playing pieces each coded to indicate its attribute and value. Three playing pieces of different attributes and different values are stacked to comprise a playing unit. Two players compare the attributes and values of the bottom-most piece of their playing units successively in a number of plays in order to determine the outcome of the game. The game comprises three different groups of attributes having strengths that allow a first group to be stronger than a second, the second group to be stronger than a thrid and the third group to be stronger than the first. In addition, each of the groups of attributes contains three hierarchically ranked groups of different values.
    Type: Grant
    Filed: January 7, 1983
    Date of Patent: December 18, 1984
    Inventor: Roger K. Lam