Patents by Inventor James Robert Leverentz

James Robert Leverentz 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).

  • Airlock assembly supporting a filter cartridge
    Patent number: 5950524
    Abstract: An airlock assembly for allowing fermentation gasses to escape from a sealed fermentation vessel and preventing ambient gasses from entering the fermentation vessel and including structure for supporting an activated charcoal filter, or other filter medium, for absorbing organic by-product gasses of the fermentation process.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: September 14, 1999
    Inventors: Christopher J. Reitz, James Robert Leverentz