Patents by Inventor Stephen W Barth

Stephen W Barth 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).

  • Closed Tank Fill Level Sensor
    Publication number: 20170097254
    Abstract: A fill level sensor and method are disclosed. The fill level sensor can take a pressure reading beneath a fluid level inside a closed tank. The sensor can also take a pressure reading above the fluid level or otherwise take the vapor pressure above the fluid into account. The measurements can be used to calculate the fluid level inside the tank. Also disclosed is a system for users to track a plurality of tanks and maintain records of fluid level or pressure within the tanks.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 6, 2017
    Applicant: Numerex Corp.
    Inventors: Jeffrey O. Smith, Rodney C. Montrose, Stephen W Barth