Patents by Inventor Stephen J. Simko

Stephen J. Simko 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).

  • Capacitive liquid level sensor
    Patent number: 5083470
    Abstract: A capacitance liquid level sensor uses an inductance to isolate the probe of the sensor from the plastic tubing coupled to the probe thus reducing false signals generated by movement of the tubing.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: January 28, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: James E. Davis, Stephen J. Simko