Patents by Inventor Daniel H. Ralston

Daniel H. Ralston 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).

  • Pressure activation of magnesium oxide catalysts
    Patent number: 4418005
    Abstract: A titanium oxide/magnesium sulfate/magnesium oxide catalyst which is an ortho-selective methylation catalyst can be made to exhibit higher conversion and activity index for phenol methylation by the application of pressure. The pressure can be applied throughout the methylation period or can be applied for a short time at the beginning of the methylation period and then ceased, while higher activity continues. The pressure activation effects are assisted by the presence of phenol, methanol and/or water.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: November 29, 1983
    Assignee: Conoco Inc.
    Inventors: John R. Dodd, Daniel H. Ralston