Patents by Inventor Stephen L. Wythe

Stephen L. Wythe 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).

  • Concurrent production of methanol and synthetic natural gas
    Patent number: 3993457
    Abstract: Methanol and synthetic natural gas are produced concurrently by introducing a carbonaceous material into a gasification zone, and thereafter, passing sequentially the synthesis gas thus formed through a water gas shift conversion zone, a sulfur compound and carbon dioxide removal zone, a methanol synthesis zone and a methanation zone.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: November 23, 1976
    Assignee: Exxon Research and Engineering Company
    Inventors: Robert P. Cahn, John P. Longwell, Stephen L. Wythe