Patents by Inventor Thomas K. Ziegler

Thomas K. Ziegler 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: 4683891
    Abstract: A method of managing and controlling stress in a person engaged in a goal oriented, cognitive task involves simultaneous measurement of a physical parameter of the person which varies in accordance with the level of the person's stress and the productivity of the person performing the task. A programmed computer calculates the stress point for the person beyond which productivity decreases and provides a visual display of the physical parameters and stress point on a cathode ray tube.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: August 4, 1987
    Inventors: Vincent Cornellier, Thomas K. Ziegler