Patents by Inventor William Henry Van Der Schalie

William Henry Van Der Schalie 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).

  • Apparatus and method for automated biomonitoring of water quality
    Patent number: 6058763
    Abstract: An automated biomonitoring system for monitoring water quality includes an exposure chamber for housing an aquatic organism having ventilatory behavior and body movement sensitive to water quality. Electrodes sense electrical signals produced by the organism during its ventilatory behavior and body movement, and a controller responsive to signals from the electrodes determines a plurality of ventilatory parameters based on the signals. The ventilatory parameters are compared with corresponding thresholds to determine when the water to which the organism is exposed has caused physiological stress to the organism.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: May 9, 2000
    Assignees: Geo-Centers, Inc., The United States of America as represented by the Secretary of the Army
    Inventors: Tommy Ray Shedd, Mark Wesley Widder, Jeffery Daniel Leach, William Henry Van Der Schalie, Robert Charles Bishoff