Patents by Inventor Joe Caldwell

Joe Caldwell 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).

  • Publication number: 20140096591
    Abstract: A method to detect a phase separation of gasoline and ethanol may include the steps of generating a sound signal in a tank, determining a speed of the sound signal, determining an interface level in the tank, determining the speed of the sound signal below the interface level and determining the phase separation based upon the speed of the sound signal.
    Type: Application
    Filed: October 5, 2012
    Publication date: April 10, 2014
    Inventors: Joe Caldwell, Howard Dockery, Dinesh Kumar, Sidney Durham