Patents by Inventor J. Neil Birch

J. Neil Birch 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).

  • Fraud prevention system and process for cellular mobile telephone networks
    Patent number: 5335278
    Abstract: An improved mobile telephone system, including a process and apparatus for detecting fraudulent requests for roamer cellular telephone services before the requested service is granted. The improvement comprises a distributed, readily updatable fraud prevention processor which facilitates a plurality of independent, geographically dispersed cooperating cellular networks to each locally determine if a roamer request for service is from a valid, currently authorized user subscriber before cellular telephone service is provided by the visited cellular network.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: August 2, 1994
    Assignee: Wireless Security, Inc.
    Inventors: Noel D. Matchett, J. Neil Birch