Patents by Inventor Rex R. Stevens

Rex R. Stevens 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).

  • Patent number: 4752622
    Abstract: A process for making alcohols comprising contacting a mixture of hydrogen and carbon monoxide with a catalyst comprising:(1) as a first component, at least one element selected from the group consisting of molybdenum and tungsten in free or combined form;(2) as a second component, at least one element selected from the group consisting of iron, cobalt and nickel in free or combined form;(3) as a third component, a promoter comprising an alkali or alkaline earth element in free or combined form; and optionally(4) as a fourth component, a support;to form an alcohol fraction boiling in the range of motor gasoline in at least 20 percent CO.sub.2 free carbon selectivity.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: June 21, 1988
    Assignee: The Dow Chemical Company
    Inventor: Rex R. Stevens
  • Patent number: 4675344
    Abstract: A method for controlling the ratio of methanol to higher alcohols produced in a process for making mixed alcohols by contacting a hydrogen- and carbon monoxide-containing feed with a molybdenum- or tungsten-containing catalyst, said method comprising adjusting a concentration of a sulfur releasing substance in the feed.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: June 23, 1987
    Assignee: The Dow Chemical Company
    Inventors: Mark M. Conway, Craig B. Murchison, Rex R. Stevens
  • Patent number: 4533508
    Abstract: An improved process for the preparation of metal oxide fibers, which process employs the acrylate salt of the metal.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: August 6, 1985
    Assignee: The Dow Chemical Company
    Inventor: Rex R. Stevens
  • Patent number: 4218516
    Abstract: A process for inhibiting the staining of film-forming finishes applied to a tannin-containing wood substrate comprises applying to the wood substrate, prior to or concurrently with the surface film, an aqueous formulation containing a stain-inhibiting amount of magnesium hydroxide having a high surface area, thereby forming a leach-resistant magnesium hydroxide-tannin complex.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: August 19, 1980
    Assignee: The Dow Chemical Company
    Inventors: Victor E. Meyer, Rex R. Stevens