Patents by Inventor Behm. William F.

Behm. William F. 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).

  • Lottery ticket having validation data printed in developable invisible ink
    Patent number: 5286061
    Abstract: A game ticket has validation data printed on the ticket substrate in invisible ink. The invisible validation data is capable of being irreversibly rendered visible by application of a developing agent. The ticket also has play indicia printed within the play area of the ticket and a removable layer affixed to the ticket over the game area.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: February 15, 1994
    Assignee: Scientific Games, Inc.
    Inventor: Behm. William F.