Patents by Inventor Kelvin Lunsford

Kelvin Lunsford 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: 5182770
    Abstract: An integrated software piracy prevention system incorporates several characteristic identification codes identifying installation and software components. A separate security device is attached to and in communication with the protected computer system. It is interactively queried regarding proper authorization of the current user. This approach is unusually flexible and provides economical tracking of licensees and their use of sophisticated programs.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: January 26, 1993
    Inventors: Geza Medveczky, Kelvin Lunsford