Patents by Inventor Craig Thomas Llewellyn

Craig Thomas Llewellyn 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).

  • Integrated alert generation in a process plant
    Patent number: 7557702
    Abstract: Operational status information associated with a process entity in a process plant is received. The operational status information is mapped into one of a plurality of status conditions. Then, an alert message associated with the process entity is generated, where the alert message is indicative of the one status condition of the plurality of status conditions.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: July 7, 2009
    Inventors: Evren Eryurek, Craig Thomas Llewellyn, Lester David Marschall, Jon D. Westbrock, Stuart A. Harris, Scott N. Hokeness
  • Enhanced hart device alerts in a process control system
    Patent number: 6975219
    Abstract: Enhanced HART device alerts enable HART devices within a process control system to report alarm or alert conditions that are detected within the devices to a system user or operator using a plurality of intuitive device status conditions, each of which corresponds to a different level of severity and each of which may require a different type of response by the system user or operator. The status conditions are consistent with enhanced Fieldbus device alerts and include a condition associated with a failure of a HART device, a condition associated with maintenance needed by a HART device and an advisable action in connection with a HART device.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: December 13, 2005
    Assignee: Fisher-Rosemount Systems, Inc.
    Inventors: Evren Eryurek, Jon Dale Westbrock, Craig Thomas Llewellyn
  • Enhanced hart device alerts in a process control system
    Publication number: 20020147511
    Abstract: Enhanced HART device alerts enable HART devices within a process control system to report alarm or alert conditions that are detected within the devices to a system user or operator using a plurality of intuitive device status conditions, each of which corresponds to a different level of severity and each of which may require a different type of response by the system user or operator. The status conditions are consistent with enhanced Fieldbus device alerts and include a condition associated with a failure of a HART device, a condition associated with maintenance needed by a HART device and an advisable action in connection with a HART device.
    Type: Application
    Filed: June 29, 2001
    Publication date: October 10, 2002
    Inventors: Evren Eryurek, Jon Dale Westbrock, Craig Thomas Llewellyn