Patents by Inventor Leon S. Jones

Leon S. Jones 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).

  • Fuel tank ventilation system and method for substantially preventing fuel vapor emissions
    Patent number: 6681789
    Abstract: A fuel tank ventilation system and method are provided for substantially preventing fuel vapor emissions without significant increase in tank pressure. The system and method include a flexible bladder within the fuel tank that alternately deflates and inflates in response to a change in fuel vapor pressure and fuel volume.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: January 27, 2004
    Assignee: The United States of America as represented by the United States Environmental Protection Agency
    Inventors: Charles E. Moulis, Leon S. Jones