Patents by Inventor David Stuart Fritz

David Stuart Fritz 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).

  • METHOD AND APPARATUS FOR FORMING SOLID CARBON DIOXIDE
    Publication number: 20150166350
    Abstract: Liquid carbon dioxide is transformed into solid snow and compressed into strands. A shroud defines an insulating plenum/volume surrounding a forming chamber, which reduces heat transfer to the forming chamber. A faction of gas phase flow resulting from the process fills the insulating plenum/volume, reducing heat transfer further.
    Type: Application
    Filed: October 16, 2014
    Publication date: June 18, 2015
    Inventors: David Stuart Fritz, Scott Thomas Hardoerfer, Daniel Mallaley, Michael Eric Rivir