Patents by Inventor Mark H. Karwan

Mark H. Karwan 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).

  • Two-phase method for real time process control
    Patent number: 5329443
    Abstract: A method of process control using linear programming models to implement the control of one or more controlled variables to maintain a desired target value over a given time horizon. The controlled variables are controlled by a process controller which adjusts manipulated variables in real time. The method uses two linear programming models with the second model computed from the solution of the first in which the absolute value of the deviation for each controlled variable from its target value over a specified time horizon is computed. This permits the controlled variables to be adjusted with the changes in the manipulated variables held to a minimum over the time horizon under control.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: July 12, 1994
    Assignee: Praxair Technology, Inc.
    Inventors: Dante P. Bonaquist, Michael D. Jordan, Mark H. Karwan