Patents by Inventor Stephen N. Vaugh

Stephen N. Vaugh 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 gasifying solid carbonaceous materials
    Patent number: 4720289
    Abstract: A process for gasifying a non-gaseous solid material wherein a portion of the gasification is accomplished in the presence of steam and another portion of the gasification is accomplished in the presence of hydrogen and in the substantial absence of carbon dioxide and steam. The gasification will be accomplished at an elevated temperature and pressure.
    Type: Grant
    Filed: July 5, 1985
    Date of Patent: January 19, 1988
    Assignee: Exxon Research and Engineering Company
    Inventors: Stephen N. Vaugh, Robert Lang