Patents by Inventor James Douglas Pettifor

James Douglas Pettifor 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).

  • Intelligent network services
    Patent number: 7095837
    Abstract: In a telephone network, a service control point is called by a switching center, if a flag has previously been set by some event (e.g. call charges crossing a threshold or the leaving of a voice mail message) when a call is being established or terminated. The switching center then operates in accordance with commands returned by the service control point. If no flags have been set, the service control point is not called and the call is treated by the switching center in a default manner.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: August 22, 2006
    Assignee: British Telecommunications public limited company
    Inventors: James Douglas Pettifor, Alan James Clapton