Patents by Inventor Frederick John Pollak

Frederick John Pollak 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).

  • Method and apparatus for authorizing use of cellular telephone units
    Patent number: 6654600
    Abstract: A computer implemented service transmits authorization codes for cellular service by way of a network connection with a user system. The user can purchase additional activation time for an already active pre-paid service. The user can also convert a previously purchased coded card to an authorization code by interacting with the service.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: November 25, 2003
    Assignee: Tracfone Wireless, Inc.
    Inventors: Frederick John Pollak, Victor Maldonado