Patents by Inventor John A. Lerohl

John A. Lerohl 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: 4549739
    Abstract: A backgammon board game for two, three or four players wherein the movement spaces are positioned in the form of a cross. Each of the players is given 15 stones which they must move around the board according to rules which are similar to those used in conventional backgammon. The stones of each player are of a color different from the stones of the other players.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: October 29, 1985
    Inventors: Patrick L. Tobin, Joseph W. Green, John A. Lerohl