Patents by Inventor Iain Stuart Campbell Walker

Iain Stuart Campbell Walker 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: 7221945
    Abstract: A telecommunications network uses a supervisory service broker in a packet messaging environment, particularly Session Initiation Protocol (SIP) messaging, to changeably allocate and to account for the usage of network resources by users. The SIP INVITE and other messages are passed through the supervisory broker, monitored for accounting and potentially redirected to change allocations of resources. The resources can generally comprise applications and applications servers such as media storage and playback, voicemail and directory services, subnet messaging and instant messaging, voice-over-Internet, wireless linkages and others, and can be logically grouped in packages that are allocable. Users such as telecom carriers and others can contract for usage and also can contract to provide resources for use by others, in an unlimited way or according to terms, and for appropriate credit.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: May 22, 2007
    Assignee: Leapstone Systems, Inc.
    Inventors: Matthew A. Milford, Iain Stuart Campbell Walker
  • Publication number: 20030224781
    Abstract: A telecommunications network uses a supervisory service broker in a packet messaging environment, particularly Session Initiation Protocol (SIP) messaging, to changeably allocate and to account for the usage of network resources by users. The SIP INVITE and other messages are passed through the supervisory broker, monitored for accounting and potentially redirected to change allocations of resources. The resources can generally comprise applications and applications servers such as media storage and playback, voicemail and directory services, subnet messaging and instant messaging, voice-over-Internet, wireless linkages and others, and can be logically grouped in packages that are allocable. Users such as telecom carriers and others can contract for usage and also can contract to provide resources for use by others, in an unlimited way or according to terms, and for appropriate credit.
    Type: Application
    Filed: May 5, 2003
    Publication date: December 4, 2003
    Inventors: Matthew A. Milford, Iain Stuart Campbell Walker