Patents by Inventor Tad K. Shioyama

Tad K. Shioyama 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).

  • Palladium/heteropolyacid/surfactant catalyst system
    Patent number: 4434082
    Abstract: A Pd/heteropolyacid/surfactant catalyst system, when used with proper diluents, improves the oxidation of olefins to ketones, while reducing corrosive effects.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: February 28, 1984
    Assignee: Phillips Petroleum Company
    Inventors: Timothy P. Murtha, Tad K. Shioyama