Patents by Inventor Gregory Ratajski

Gregory Ratajski 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).

  • Automated location verification and authorization system for electronic devices
    Patent number: 5790074
    Abstract: A system for remotely and automatically verifying the location of an electronic device and authorizing operation of the device if it resides in an allowed geographical location. The system includes a remote device requiring authorization to operate and an authorization device connected to an authorization database. The remote device and authorization device being connected via a communication link. Methods for verification include employing a Global Positioning System receiver in the monitored device and using the telephone number of the monitored device.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: August 4, 1998
    Assignee: Ericsson, Inc.
    Inventors: Lars Rangedahl, Gregory Ratajski, Andrew Ying-Tsai Chien, James Wang