Patents by Inventor Richard C. Seeman

Richard C. Seeman 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 optimal model predictive control in a process control system
    Patent number: 6721609
    Abstract: A model predictive controller having a set of inputs adapted to receive process output signals and further having a set of outputs adapted to supply process input signals to process control devices is configured to perform integrated optimal model predictive control. The controller provides integrated optimal control using a feedback path that couples a selected output to an input having a setpoint that is equal to the constraint limit of the selected output. The controller maintains the selected output at its constraint limit until one of the outputs, other than the selected output, is going to reach or exceed the associated constraint limit for that output. When the output is going to reach or exceed the associated constraint limit for that output, the controller relaxes the setpoint until the output is no longer going to reach or exceed the associated constraint limit for that output.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: April 13, 2004
    Assignee: Fisher-Rosemount Systems, Inc.
    Inventors: Wilhelm K. Wojsznis, Terrence L. Blevins, Richard C. Seeman, Mark J. Nixon