Patents by Inventor Charles J. Svoboda

Charles J. Svoboda 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).

  • System for use of land fills and recyclable materials
    Patent number: 7389654
    Abstract: Gases are vented from a waste site such as a landfill, and the gases are separated into at least three streams comprising a hydrocarbon stream, a carbon dioxide stream, and residue stream. At least a portion of the carbon dioxide stream and hydrocarbon stream are liquefied or converted to a supercritical liquid. At least some of the carbon dioxide gas stream (as a liquid or supercritical fluid) is used in a cleaning step, preferably a polymer cleaning step, and more preferably a polymer cleaning step in a polymer recycling process, and most preferably in a polymer cleaning step in a polymer recycling system where the cleaning is performed on-site at the waste site.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: June 24, 2008
    Assignee: Cool Clean Technologies, Inc.
    Inventors: Jon P. Wikstrom, Dan Schiller, Jon R. Turner, Charles J. Svoboda