Patents by Inventor Shih-Yung Shiao

Shih-Yung Shiao 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).

  • Retardation of dispersion of bitumen-in-water emulsions
    Patent number: 6077322
    Abstract: Methods and additive compounds for retarding the dispersion in water of bitumen-in-water emulsions, and in particular ORIMULSION, are disclosed. Methods include applied mixing at high speed and changing the pH of the emulsion. Additives include salts and flocculants.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: June 20, 2000
    Assignee: The Babcock & Wilcox Company
    Inventor: Shih-Yung Shiao