Patents by Inventor Robert L. DiLonardo

Robert L. DiLonardo 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).

  • Video game cartridge including a security device and method of deterring theft of same
    Patent number: 5528223
    Abstract: A video game cartridge includes a memory and a security device, which comprises a magnetically operated switch and a magnetic element positioned adjacent to the switch. The switch has first and second states with the first state for inhibiting the functioning of the memory of the cartridge and the second state for permitting the functioning of the memory of the cartridge. The magnetic element has a first magnetic state for placing the switch in the first state and a second magnetic state for placing the switch in the second state.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: June 18, 1996
    Assignee: Sensormatic Electronics Corporation
    Inventors: Robert L. DiLonardo, Douglas A. Narlow