Patents by Inventor Gene Leonhardt

Gene Leonhardt 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).

  • Process for reducing volatile organic compound content of refinery liquid waste streams using aqueous solutions containing microbes
    Patent number: 6653120
    Abstract: A process and apparatus are provided for reducing volatile organic compound content, e.g., benzene content, of a hydrocarbon-containing gas stream, e.g., a refinery waste vapor stream by contacting the stream, preferably in a single pass, with an aqueous liquid medium containing volatile organic compound-metabolizing microbes, e.g., Bacillus subtilis, under volatile organic compound-metabolizing conditions. A treated stream results which contains volatile organic compound metabolization products of volatile organic compounds, e.g., water and carbon dioxide, and substantially reduced volatile organic compound content.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: November 25, 2003
    Assignee: Marathon Ashland Petroleum LLC
    Inventor: Gene Leonhardt