Patents by Inventor Joseph J. Svoboda

Joseph 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).

  • Process for removing polymer-forming impurities from naphtha fraction
    Patent number: 4422927
    Abstract: Polymer precursor materials are vaporized without polymerization or are removed from a raw naphtha fraction by passing the raw naphtha to a vaporization zone (24) and vaporizing the naphtha in the presence of a wash oil while stripping with hot hydrogen to prevent polymer deposits in the equipment.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: December 27, 1983
    Assignee: The Pittsburg & Midway Coal Mining Co.
    Inventors: Dennis C. Kowalczyk, Bruce A. Bricklemyer, Joseph J. Svoboda